@article{ author = {Hamzeh, Mahtab and Nosrati, Kamran and NooriBayat, Shaghayegh and Hajimoradi, Mahdieh and Mehdizadeh, Mohamm}, title = {Retracted Article: Medical Emergencies Occurrence in Dental Settings and Dentists’ Self-Perceived Need for Practical Training}, abstract ={This article was retracted on 12 April 2022 It has been notified to the Editorial Board, Journal of Dentomaxillofacial Radiology, Pathology and Surgery, that considerable script of the aforementioned article has been plagiarized from the article: Hamzeh M, Mehdizadeh M, Nosrati K. Availability of Emergency Drugs and Equipment in General and Specialist Dental Settings in Babol, Iran. J Contemp Dent Pract 2014; 15 (6):677-680. In accordance to observe serious view in case of plagiarism, the Editorial Bord,decided to retract the title as addressed from the assigned issue  }, Keywords = {Emergency Medical Services , Dentists ,Education}, volume = {3}, Number = {1}, pages = {1-5}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.1}, url = {http://3dj.gums.ac.ir/article-1-88-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-88-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Koopaie, Maryam and Karimi, Abbas}, title = {A Comparative Study of CT Scan and MRI in The Assessment of Squamous Cell Carcinoma of The Oral Cavity and Its Cervical Lymph Node Metastasis}, abstract ={Introduction: Squamous Cell Carcinoma (SCC) is the most common head and neck malignancy. To decrease the side effects of treatment and mortality from disease relapse, careful staging for the proper treatment plan is necessary. The main purpose of this prospective study is to compare the diagnostic value of Computed Tomography (CT) and Magnetic Resonance Im-aging (MRI) in oral SCC and its lymph node me-tastasis in order to represent the proper treat-ment plan. Materials and Methods: 30 patients (19 men and 11 women) with oral SCC underwent CT and MRI before surgery. Imaging modalities of each study were evaluated individually for tu-mor size, bone invasion, muscle infiltration. These evaluations were done by two radiolo-gists and an oral-maxillofacial surgeon and veri-fied with histopathology findings as gold stand-ard. The results of the radiological assessment were correlated with the intraoperative and histopathological findings in all patients. Results: CT and MRI have equal potential for detecting the tumor size, perineural invasion and nodal metastasis. The sensitivity and spe-cificity were 50%, 90% for CT in the detection of bone invasion and 90%, 85% for MRI. The sensi-tivity and specificity were 66.66%, 90.47% for CT in detection of muscle infiltration and 55.55%, 90.47% for MRI.  Conclusion: The comparison of these modalities showed no statistically significant difference between CT and MRI. Regarding bone infiltra-tion the sensitivity of CT scan was higher than of MRI, but regarding muscle invasion the spe-cificity of MRI was higher than of CT scan.}, Keywords = {Carcinoma, Squamous Cell, Lymph Nodes, Neoplasm Metastasis, Magnet-ic Resonance Imaging}, volume = {3}, Number = {1}, pages = {6-14}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.6}, url = {http://3dj.gums.ac.ir/article-1-89-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-89-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Javadzadeh, Aliehsadat and Dalili, Zahra and Mohtavipoor, Seyedeh Tahereh and Nemati, Somayeh and Saeidipouya, Iman and Shahsavari, Fatemeh and Pourhabibi, Zahr}, title = {Efficiency of Caries Detection Using Two Types of Intraoral Films under Different Processing Conditions}, abstract ={Introduction: The image quality as well as film speed is influenced by the film processing conditions. Different combinations of films and processing methods affect the diagnostic accu-racy. Temperature and developer exhaustion result in different image quality. The purpose of this study was to evaluate the influence of film type and processing conditions on caries detec-tion.  Material and Methods: Eighty proximal surfaces in forty extracted unrestored premolars were radiographed under standardized conditions using D and F speed Flow Dental intraoral films. The exposure time was reduced by 50% for F-speed films. Half of the samples in each group were processed manually while the others automatically. No replenishment was used and the temperature was kept constant during the procedure. True caries diagnosis was based on histological assessment of the surfaces after sectioning the teeth. Two observers read the radiographs using a four-point scale to record their diagnosis. Observers' responses were evaluated using repeated measures analysis of estimation error. Results: No significant differences were found in the diagnostic efficiency between two films and two processing methods in fresh and exhausted processing solution. F-speed(FV-58), however, showed earlier loss of diagnostic efficiency than D-speed(DV-58). Differences between observers were also not statistically significant. Conclusion: The performance of the new F-Speed film(FV-58) was not statistically different from D-Speed for caries detection under differ-ent processing condition, and could be recom-mended for using in dental practice contributing to dose reduction.}, Keywords = {Dental caries ,Diagnosis ,Radiography , X-ray}, volume = {3}, Number = {1}, pages = {15-22}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.15}, url = {http://3dj.gums.ac.ir/article-1-90-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-90-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Vejdani, Javaneh and Simaei, Leil}, title = {The Associated Factors of Permanent First Molar Caries in 7-9 Years Old Children}, abstract ={Introduction: Permanent first molar is the most important unit in the chewing system. Ear-ly loss of first molars can significantly reduce chewing efficiency, increase overbite, lead to premature eruption of the permanent second and third molars, and displacement of adjacent teeth. The purpose of this study was to determine the associated factors of permanent first molar caries in 7-9 years old children in Rasht, in 2014. Materials and Methods: This cross-sectional comparative study was performed on 190 child-ren 7 to 9 years old. Examination was carried out by one examiner in the pediatric depart-ment, with disposable mirror and explorer and under the light of dental unit. A self-adminis-tered questionnaire was completed by parents before the examination, containing an informed consent, demographic data and information about tooth brushing and dietary habits. Data were statistically analyzed using independent t-test and chi-square tests. Results: There was a significant relationship between the permanent first molar caries and dmft index (p = 0.001), mean plaque index (p = 0.001), consumption of between meal snacks three times a day (p = 0.046), using of sugar-containing drinks before bedtime (p = 0.048) and the age tooth brushing had started (p=0.027). There was no significant association between socio-demographic factors, frequency and method of tooth brushing and the perma-nent first molar caries. Conclusion: High dmft and plaque index, con-sumption of between meal snacks and using sugary drinks before sleep increases the risk of permanent first molar caries.}, Keywords = {Dental Caries ,Dental Plaque ,DMF Index ,Molar}, volume = {3}, Number = {1}, pages = {23-28}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.23}, url = {http://3dj.gums.ac.ir/article-1-91-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-91-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Darbandi, Bahram and Salem, Katayoun and Rahbarnikoukar, Vahid and Ansari, Shahl}, title = {Estimating The Density of Candida Albicans in Children with Acute Lymphoblastic Leukemia (A Pilot Study)}, abstract ={Introduction: Oral Candidosis is among the find-ings of acute leukemia. The aim of this study was to evaluate the changes in the intensity of C.albicans, before treatment and at the Induc-tion phase.  Materials and Methods: Twelve patients with Acute Lymphoblastic Leukemia (ALL) aged 2-14 years enrolled in study. Whole Saliva samples were obtained and cultured to determine the mean count of C.albicans Colony Forming Units (CFU) before induction of leukemia, and at days 35 and 64 of induction. White blood cell counts were also determined at the same time. Data were transferred to SPSS 19 and analyzed using paired and Independent t-test, Chi square, and stepwise regression.  Results: The mean CFU count was significantly increased before beginning of the treatment [22.41±10.47] to days 35[28.5±9.29] (P=0.006) and 64 of induction[30.5±11.82] (P=0.009) an-dat the first day of consolidation [49.66±3.01] (P=0.032).The quantity of colonies was sparse (10-100 CFU/ml) without clinical manifestations of oral candidiasis. Main predictors of C.albicans colonization were age and white blood cell count (WBC). Children younger than age 10 yrs (OR=-19.7, 95% CL [12.37-15.82 for day 35 eval-uation] and (OR=-0.002, 95% CL[-0.004-0.00 inday 64]and those with lower WBC (OR=-13.47, 95% CL [-25.29 -1.65]) showed higher risks of colonization.  Conclusion: C.albicans colonization was ob-served among the leukemia child patients at early phase of treatment without clinical mani-festations. The predictors of colonization were age and white blood cell counts.}, Keywords = {Acute Lymphoblastic Leukemia,Candida albicans, Child}, volume = {3}, Number = {1}, pages = {29-36}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.29}, url = {http://3dj.gums.ac.ir/article-1-92-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-92-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Salem, Katayoun and Shahsavari, Fatemeh and Kazemnejad, Ehsan and Poorhabibi, Zahr}, title = {Pit and Fissure Sealant Versus Fluoride Varnish In Prevention of Occlusal Caries}, abstract ={Introduction: It was to compare the efficacy of semiannually fluoride varnish application versus pit and fissure sealant to reduce occlusal caries incidence. Materials and methods: A randomized parallel designed study was conducted with 352 child-ren aged 6-7 years. Participants were allocated into biannual application of varnish (n=179) (NaF 5 %( Durafluor, DENTSPLY®, Latin America) or resin-based fissure sealant (n=173) (Eco Seal, Korea®) single application without previous tooth preparation. Two visual-tactile methods including WHO and Nyvad criteria were used for caries detection. The unit of analysis was tooth surface. χ2 test, t-test, Fisher exact, and multi-variable logistic regression were used for statis-tical analysis.  Results: Proportion of caries free (DMF=0) were 79.8% and 79.1% among the sealant and var-nish groups respectively. By using Nyvad visual-tactile criteria 60.4% and 50.2% of surfaces re-mained sound in sealant and varnish groups respectively (p < 0.001). The prevented fraction of sealant to varnish by two measures was 3.46 and 20.5 respectively. Regression model showed sealant application (OR=0.34) and tooth brushing >2 times/day (OR=0.8) were protective factors while dmfs>4(OR=0.08), and snack con-sumption >2 times/day (OR=1.3) were risk fac-tors of caries incidence.  Conclusion: The results of this study suggest that semiannual fluoride varnish application can be recommended for preventing and reducing occlusal caries in low caries risk population.}, Keywords = {Fluoride varnish ,Fissure sealant ,Occlusal Caries}, volume = {3}, Number = {1}, pages = {46-47}, publisher = {}, doi = {10.18869/acadpub.3dj.3.1.46}, url = {http://3dj.gums.ac.ir/article-1-93-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-93-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Sadeghi, Shiva and Tabari, Ramin and Almasi, Shahroz}, title = {Ex-vivo Sealing Ability of Different Thicknesses of White and Gray Angelus MTA as an Intra-orifice Barrier in Endodontically Treated Teeth}, abstract ={Introdouction: It is important for the clinician to be aware regarding the necessary thickness of materials used as intra-orifice coronal barriers to prevent microleakage. The purpose of this in vitro study was to compare coronal microleakage of three different thicknesses of white and gray Angelus mineral trioxide aggregate (WAMTA, GAMTA). Materials and methods: A total of 66 canals of extracted maxillary central incisors were instrumented and obturated with gutta percha and AH26 sealer using cold lateral compaction technique. The teeth were randomly divided into two experimental groups of 30 teeth each according to the material tested (WAMTA and GAMTA) and two negative and positive control groups of three teeth each. The experimental groups were then subdivided into three groups of 10 teeth each according to the coronal plug thickness (2, 3, and 4 mm). The obturation material was removed upto the experimental depths and was sealed with tested materials. Sealing ability was evaluated by the dye penetration method using Pelikan ink and a stereomicroscope at ×10 magnification and 0.01 mm accuracy. Data were analyzed by analysis of variance (ANOVA) and t-test. Results: t-test analysis revealed that there was no significant difference between coronal microleakage of GAMTA and WAMTA at depths of 2, 3, and 4 mm (P < 0.88, P < 0.285, P < 0.62). ANOVA test revealed that there was no significant difference between leakage of different thicknesses of WAMTA (P < 0.365) and GAMTA (P < 0.217). Conclusion: Coronal microleakage of 2-mm thickness of WAMTA and GAMTA had no statistically significant difference with 3-mm and 4-mm thicknesses of the materials.}, Keywords = { Coronal seal , MTA ,Thickness}, volume = {3}, Number = {2}, pages = {1-5}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.1}, url = {http://3dj.gums.ac.ir/article-1-111-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-111-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Taghipour, Ali and Rezaei, Maryam and Khafri, Soraya and Joudi, Rez}, title = {Comparison of the Mesiodistal Crown Dimensions of Upper And Lower Central Incisors Between the Natural Dentition and Artificial Teeth in Iran}, abstract ={Introdouction: The aim of this study was to compare the ratios of the mesiodistal width of the upper and lower central incisors between natural teeth and those produced artificially by Ideal Makoo, Ivoclar, and Vitapan, in Iran. Materials and methods: The mesiodistal width of the upper and lower central incisors was measured in 120 students, using calipers placed at the height of contour of the teeth. The widths of the upper and lower central incisors, and their ratios, in the artificial teeth were determined using the tooth catalogs of Ideal Makoo, Vitapan, and Ivoclar products. Results: The average mesiodistal width of the upper and lower central incisors, in the natural dentition, was 8.54 ± 0.76 (mean ± standard deviation (SD)), and 5.29 ± 0.57 (mean ± SD), respectively, while the ratio of the widths of the upper central incisors to the lower central incisors was 1.63 ± 0.21 (mean ± SD). Conclusion: Considering the similarities in the widths of the upper and lower central incisors, their ratios, and the esthetics, between the natural dentition and the commercially available artificial teeth, dentists in northern Iran are advised to use the A36 A7, A66 A7, A26 A7, A14 A7, and A56 A7 sets from Ivoclar products as well as the Z85 L13, Z84 L9, and Z74 L9 sets from Vitapan products for males. Furthermore, sets Z61 L3 and Z51 L3 from Vitapan products are recommended for females, whereas the sets A54 I5 from Ideal Makoo products and A24B A5, A12 A5, A13 A5, and A54 A5 from Ivoclar products are recommended for general use in dentures.}, Keywords = {Tooth ,Artificial ,Denture ,Complete ,Esthetics ,Dental}, volume = {3}, Number = {2}, pages = {6-12}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.6}, url = {http://3dj.gums.ac.ir/article-1-112-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-112-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {RahmatiKamel, Manouchehr and Samadi, Elham and Samadi, Fatere and Khafri, Soray}, title = {Comparison of The Perception of Smile Esthetics Among General Dentists and Specialist}, abstract ={Introduction: The effect of education on esthetic perception is still unclear. This study aims to compare the perception of smile esthetics, under various conditions, among general and specialist dentists. Materials and Methods: A photograph of a woman’s smile was digitally altered using a software image editing program. Alterations were made tothe dental midline, anterior gingival display, buccal corridor, golden proportion, and upper lip vermilion border height. The perception of smile in each of the modified images were assessed by orthodontists (n=15), prosthodontists (n=15), maxillofacial surgeons (n=15), esthetic and operative dentists (n=15), and general dentists (n=20), and scored using a Visual Analog Scale (VAS). The mean VAS scores were calculated for each photograph. Results: The orthodontists were less tolerant in their perception of a dental midline deviation, and rated a 1mm shift as less attractive, whereas, the maxillofacial surgeons perceived a smile as less attractive when the midline was deviated by3mm. Dentists from all groups perceived smiles with less gingival display and reduced vermilion height as the most attractive. In addition, an average buccal corridor area was preferred by most dentists in all groups. Golden proportion in the anterior teeth was perceived as attractive only by the orthodontists. In each image no significant difference was discovered between the scores of different groups of the participants. Conclusion: The range of perception and sensitivity about each factor in specialists and general dentists was different but the ideal image was the same.}, Keywords = {•Esthetics •Dental •Smiling •Dentists}, volume = {3}, Number = {2}, pages = {13-22}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.13}, url = {http://3dj.gums.ac.ir/article-1-113-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-113-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Nozari, Ali and Heidari, Ali and Rafiee, Azade}, title = {Comparison of Shear Bond Strength of Composite Restorations to Intact Enamel of Primary Incisors When Using Different Conditioners and Adhesive Systems}, abstract ={Introdouction: Esthetic demands of patients have led to the introduction of tooth-colored restorations wherecomposite resins are bonded to the enamel using acid etch techniques. Total etch adhesion systems are still considered as the gold standard among bonding systems. However, clinicians have a tendency to use adhesive systems with simpler application procedures. The aim of the present study is to compare the shearbond strength of composite restorations to intact enamel of primary incisors when using different conditioners and adhesive systems. Materials and methods: This experimental study was conducted in Shiraz University of Medical Sciences. 53 teeth were collected and classified into five groups based on the bonding procedure. After composite buildup, specimens were placed in a universal testing machine with a cross-head speed of 1mm/ min. Inter-group comparison of the shearbond strength to enamel was analyzed employing one-way-ANOVA and Tukey’s post-hoc test. Data were statistically analyzed using SPSS (Version 17, Chicago, IL, USA). Results: The highest shearbond strength was found in the second (37% phosphoric acid etching + Margin Bond adhesive system) and fifth groups (37% phosphoric acid etch + Tokuyama Bond Force adhesive system), and the lowest bond strength was found in the third group (Tokuyama Bond Force adhesive system alone) (p = 0.00). Conclusion: Based on the results of the present study, surface pre-treatment with 37% phosphoric acidalong with self-etching adhesive system resulted in increased shearbond strength in vitro. This method can be further studied in clinical settings.}, Keywords = {Shear Strength,Dental Enamel , Incisor}, volume = {3}, Number = {2}, pages = {23-28}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.23}, url = {http://3dj.gums.ac.ir/article-1-114-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-114-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {mohammadzadehjouryabi, Ali and khalighisigaroudi, Ali and haghighi, mohammad and Sedighinejad, Abbas and naderinabi, Bahram and ghazanfartehran, samaneh and ashoorisaheli, nasim}, title = {Unilateral Temporomandibular Joint Dislocation after Jaw Thrust Maneuver}, abstract ={A 25-yr-old Iranian woman with incomplete abortion who was diagnosed and scheduled for dilatation and curettage procedures under general anesthesia. After premedication with Fentanyl 50µg and midazolam 2mg and enough pre-oxygenation, anesthesia was induced by sodium thiopental 250 mg and succynilcholine 60 mg with mask ventilation. After completion of procedure, the patient had a period of laryngospasm that we had to maneuvered head tilt and jaw thrust to insert an oral airway for effective ventilation. It was noted that the patient mouth was persistently open about 2 cm after removing of oral airway as the patients chin deviated to the left side. On palpation the right temporomandibular joint (TMJ) could be felt below the zygomatic arch and a diagnosis of unilateral mandibular dislocation was made. To confirm diagnosis plain radiography (anterior posterior skull projection) was immediately taken. TMJ dislocation was reduced by the anesthesiologist that placed his thumbs near the mandibular posterior teeth with his finger .Jaw dislocation after general anesthesia should be consider as an emergency situation that be harmful for the patients so everybody who work in the airway management must be alert to this complication .Actually, know to treat it.}, Keywords = {Temporomandibular ,Joint dislocations,General anesthesia ,Jaw trust}, volume = {3}, Number = {2}, pages = {29-32}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.29}, url = {http://3dj.gums.ac.ir/article-1-115-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-115-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Abolhasani, Majid and Shakibamehr, Amirhosein and NeshandarAsli, Hami}, title = {A Technique for Registration and Reorientation of Surveyed Dental Casts}, abstract ={Precise registering and transferring of the selected path of insertion and withdrawal of removable, partial dentures is a critical step in designing and fabricating their framework and determining the retention, stability, and support of the completed prosthesis. Many authors have addressed this issue in their studies. In this study we present a new technique for registering and reproducing partial edentulous cast orientation by the use of a laser level.}, Keywords = {Denture ,Partial ,Removable ,Dental Prosthesis Retention ,Lasers}, volume = {3}, Number = {2}, pages = {33-36}, publisher = {}, doi = {10.18869/acadpub.3dj.3.2.33}, url = {http://3dj.gums.ac.ir/article-1-116-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-116-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {ZakerJafari, HamidReza and Dadashi, Saloomeh and Aghajani, reihaneh and Pourhabibi, Zahr}, title = {Knowledge and Practice of Dentists Regarding Disinfection of Impressions Sent to Laboratory}, abstract ={Introdouction: Infection control procedures are essential fordentists. Oral and dental impressions can act as carriers of contaminants that can increase the risk of infections while being transferred from the laboratory to the dental office. Therefore, the aim of this study was to evaluate the knowledge and practice of dentists regarding disinfection of impressions sent to the laboratory. Materials and methods: In this sectional descriptive study, 166 dentists in Rasht were randomly surveyed using a questionnaire that included routine demographic questions, including 10 on knowledge and 15 on practice. Each correct answer was scored +1 in the two-choice questions, and each choice was graded as weak, moderate, or good in the multiple-choice questions. Chi-square and Wilcoxon–Mann–Whitney tests were performed using SPSS 19.0 software to analyze the data. Results: The total mean and standard deviation values for dentists’ knowledge were found to be 2.11 ± 0.562, and 18 (10.8%), 112 (67.5%), and 36 (21.7%) of the 166 dentists demonstrated good, moderate, and weak knowledge, respectively. The total mean and standard deviation values for dentists’ practice were 1.67 ± 0.663, and 72 (43.4%), 76 (45.8%), and 18 (10.8%) dentists demonstrated good, moderate, and weak practice, respectively. Conclusion:Most dentists demonstrated moderate knowledge and practice of disinfection of dental impressions, and in many cases, the knowledge was not commensurate with the practice. Thus, despite the moderate and upward knowledge, the practice was weak. Furthermore, the dentists’ knowledge and practice were not sufficient to ensure disinfection of impressions. Better training and careful monitoringis needed in this regard.}, Keywords = {Dentists,Impression Materials ,Infection Control , Knowledge, Practice}, volume = {3}, Number = {3}, pages = {1-7}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.1}, url = {http://3dj.gums.ac.ir/article-1-124-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-124-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Movahhedian, Najmeh and Khojastepour, Leila and Mortazavi, Fahimeh and SadeghBirjandi, Mohamm}, title = {Interproximal Caries Detection Ability of Dental Practitioners Using Direct Digital System and Conventional Films}, abstract ={Introdouction:The study aimed to compare the accuracy of proximal caries detection by dental practitioners using two different systems, direct digital system and conventional films, under routine environmental conditions. Materials and methods: Eleven extracted human posterior teeth were mounted on wax frames and were exposed using the direct digital system and conventional films. Seventy-four dental practitioners evaluated these images for proximal caries. No environmental conditions were dictated. The dental practitioners’ evaluations were compared with histopathological sections that were used as the gold standard. Results:There were no statistically significant differences in the dental practitioners’ ability to detect caries using the direct digital and conventional systems (P=0.548).No significant differences were found between groups based on the level of the dental practitioners’ work experience (P=0.167). Conclusion:Dental practitioners work well with both direct digital and conventional systems in the diagnosis of proximal caries, although the routine environmental condition is not the ideal one. Further, this ability is so basic that it is not influenced by the level of the dental practitioner’s experience.Therefore, we recommend that digital systems be considered for use in dental offices.}, Keywords = {Dental Caries ,Digital Dental Radiography ,Dentists}, volume = {3}, Number = {3}, pages = {8-13}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.8}, url = {http://3dj.gums.ac.ir/article-1-125-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-125-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {DaliliKajan, Zahra and Taramsari, Mehran and Nemati, Somayeh and Barandeh, Mehrnaz}, title = {Ghost Image Mapping of Palatal Bone of Maxilla and Nasal Cavity in Panoramic View Using Cranex D Digital Machine}, abstract ={Introdouction: The mapping of ghost images of the maxilla and the nasal cavity, which are complex structures, is very important. The position of objects that create a ghost image can differ when using various devices. The purpose of this investigation was to study the mapping of ghost images of the maxilla and the nasal cavity using a Cranex D digital panoramic machine. Materials and methods: The mapping of ghost images of the maxilla and the nasal cavity, which are complex structures, is very important. The position of objects that create a ghost image can differ when using various devices. The purpose of this investigation was to study the mapping of ghost images of the maxilla and the nasal cavity using a Cranex D digital panoramic machine. Results: When the lead ball was located in the posterior third of the septum in the anterior-posterior direction and in the middle third above the base of the septum, a ghost image was detected in panoramic view. If the ball was placed in the posterior nasal spine, the image of the object appeared extremely elongated in a horizontal direction. The same was seen when the ball was located in the posterior third of the septum in the anterior- posterior direction and near the base of the septum. Conclusion: This in vitro study examining ghost image mapping of the maxilla and the nasal cavity, using a Cranex D machine, revealed that the ghost envelope was limited. Digital panoramic device manufacturers have attempted to reduce ghost images, and this has now been achieved with this particular digital machine.}, Keywords = {Maxilla ,Nasal Cavity ,Radiography ,Panoramic}, volume = {3}, Number = {3}, pages = {14-20}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.14}, url = {http://3dj.gums.ac.ir/article-1-126-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-126-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Hajihassani, Neda and Tofangchiha, Maryam and HosseinNahtaj, Mojtab}, title = {Comparison of Accuracy and Observer Agreement in the Detection of Simulated External Root Resorption Using Conventional Digital Radiography and Digitally Filtered Radiography}, abstract ={Introduction: External root resorption is a clinical problem that often cannot be detected clinically. Thus, radiography plays a crucial role in its diagnosis. However, optimal radiographic quality with minimal radiation exposure {2.1 [EN] Verify English word/phrase choice} is an important factor in selecting the appropriate radiographic technique. The aim of this study was the comparison of accuracy and observer agreement in the detection of simulated external root resorption using conventional digital radiography and digitally filtered radiography. Materials and methods: The study was performed using 100 single rooted teeth in a dry mandibular jaw. The teeth were divided into 5 groups as follows: (1) without resorption, (2) resorption with 0.25 mm depth on buccal surface, (3) resorption with 0.5 mm depth on buccal surface, (4)resorption with 0.25 mm depth on proximal surfaces, and (5) resorption with 0.5 mm depth on proximal surfaces. Digital radiographic images, both conventional and digitally filtered using 3 filters (diagonal, horizontal, and vertical), were obtained. The 2 groups of images were then evaluated by 4 observers in 2 stages, with an interval of 1 week. Thereafter, sensitivity, accuracy, specificity, and Kappa coefficients were calculated to assess observer agreement.  Results: For digitally filtered radiography with diagonal, horizontal, and vertical filters, the accuracy values were 86.5%, 87.2%, and 89.2% sensitivity values were 93.1%, 92.7%, and 94.3% and specificity values were 82.5%, 87.5%, and 93.7%, respectively. The accuracy, sensitivity, and specificity values for conventional digital radiography were 86.5%, 91.5%, and 82.5%, respectively. Conclusion: Manipulation of images in digital radiographic systems may not always facilitate diagnosis.}, Keywords = {Radiography ,Dental ,Digital ,Root Resorption ,Diagnosis}, volume = {3}, Number = {3}, pages = {21-27}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.21}, url = {http://3dj.gums.ac.ir/article-1-127-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-127-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Mirbeigi, Sanam and Khojastepour, Leila and Ezoddini, Fatameh}, title = {Correlation between Mandibular Radiomorphometric Parameters and Gonial Angle size in Iranian Adults}, abstract ={Introdouction: The purpose of the present study was to determine the possible relationship between gonial angle size and three mandibular morphometric parameters, namely, panoramic mandibular index (PMI), mandibular cortical width (MCW), and antegonial notch depth (AD), in digital panoramic radiographs. Materials and methods: PMI, MCW, and AD were calculated in digital panoramic radiographs of 370 dentulous adult subjects with a mean age of 44.2 years and a mean number of remaining teeth of 23.49 ± 7.71. The differences between the mean values of measured parameters were compared between males and females, among various age groups, and between subjects with low and high gonial angles (gonial angle of ≤120 and ≥125, respectively) . The correlation between gonial angle size, PMI, MCW, and AD was also evaluated. T-test, ANOVA, and Pearson’s correlation test were used for statistical analysis. A P<0.05 was considered as statistically significant. Results: PMI, AD, and MCW(Mandibular Cartical Width) were significantly higher in subjects with low gonial angle (LGA) than those with high gonial angle (HGA). PMI, AD, and MCW were also significantly higher in males than those in females. Significantly negative correlations between the gonial angle and PMI, AD, and MCW were also observed. Conclusion: The mandibular radiomorphometric parameters of PMI, AD, and ACW are related to sex and gonial angle size.}, Keywords = {Mandible ,Radiography ,Dental ,Digital ,Adult}, volume = {3}, Number = {3}, pages = {28-34}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.28}, url = {http://3dj.gums.ac.ir/article-1-128-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-128-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {DehghaniNazhvani, Ali and Khosropanah, Hengameh and Rezai, Mostafa and Moradi, Mahsa and Moradi, Ahm}, title = {In vitro Evaluation of Dentin Surface Irradiated by Neodymium-doped: Yttrium Aluminum Garnet Laser (Nd: YAG) Using Scanning Electron Microscopy}, abstract ={Introdouction: Dentinal hypersensitivity (DH) is one of the most painful chronic problems reported in dental offices. Various methods have been applied for the treatment of DH. However, majority of them are either ineffective or last for a short period of time. It has been reported that lasers, particularly Neodymium- doped: Yttrium Aluminum Garnet laser (Nd: YAG), can be helpful in the treatment of this disease. However, systematic reviews have shown that the available evidence for its effectiveness is weak. The aim of this study was to evaluate the Nd: YAG laser-prepared dentine surface with different powers and energies. Materials and methods: Fifteen extracted human molars were randomly divided into five groups receiving different powers and energies of Nd:YAG laser (Group A: power: 0.7 W, energy: 70 mJ Group B: power: 0.9 W, energy: 90 mJ Group C: power: 1.1 W, energy: 110 mJ Group D: power: 1.3 W, energy: 130 mJ and Group E: power: 1.5 W, energy: 150 mJ) in three pulse modes. The surfaces of the specimens were then studied using scanning electron microscopy (SEM). Results: With output power of 0.7 W in single, double and triple radiation modes, sealed dentinal tubules and absence of smear layer were observed. The surfaces prepared by using higher powers of 0.9, 1.1, 1.3, and 1.5 W showed the same features as those prepared with 0.7 W power in single and double pulse modes. In addition, carbonization centers were observed when single pulse mode with power of 1.5 W was employed. Conclusion:All combinations of power and energy tested in this study were found to have produced sealing of the dentinal tubules. However, 0.7 W power in double and triple radiation modes is suggested to be the best option for the clinician, due to having the lowest energy, fewer side effects and lower risk of physical dangers, as well as decreasing the occurrence of unwanted carbonizations. Experimental and clinical studies, especially randomized clinical trials, comparing the effects of Nd: YAG lasers with conventional methods are recommended.}, Keywords = {Lasers ,Solid-State,Dentin Sensitivity ,Microscopy ,Electron ,Scanning}, volume = {3}, Number = {3}, pages = {35-39}, publisher = {}, doi = {10.18869/acadpub.3dj.3.3.35}, url = {http://3dj.gums.ac.ir/article-1-129-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-129-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Bronoosh, Pegah and Khojastepour, Leila and CharlieMohammad, Shabnam}, title = {Pharyngeal Airway: An Analysis Using 2D vs. 3D Images in Different Malocclusions}, abstract ={Introdouction: The aim of this study was to compare information regarding pharyngeal airway sizes in adolescent subjects with different malocclusion classes obtained from lateral cephalograms and 3–dimensional (3D) cone-beam computed tomography (CBCT) scans. Materials and methods: In this prospective cross-sectional study, CBCT scans and lateral cephalograms of 35 subjects, taken within one week, were included. Measurements of the pharyngeal airway area from the lateral cephalograms and airway volume from the CBCT scans were analyzed using one-way ANOVA post-hoc tests were used for comparison of the airway area and volume in different malocclusion classes. A linear regression of the airway area to volume was performed to discern associations and determine correlation coefficients. Descriptive statistics for airway dimensions were determined. Results: No significant differences were detected between the sexes for any measurement therefore, all data were combined. Regression analysis showed that for every mm2 increase in airway area, there was a corresponding 11.94- mm3 increase in mean airway volume. One-way ANOVA and post-hoc tests demonstrated significant differences in airway area and volume between the three malocclusion classes (p < 0.001). The highest mean airway area and volume was observed in class III malocclusion, followed by classes I and II malocclusion. Conclusion: Pharyngeal airway area, as measured on the lateral cephalogram, concurs with volumetric data. However, accurate determination of airway volume and shape is achieved by 3D imaging, owing to great variability in the shape of the pharyngeal air space.}, Keywords = {Cephalometry ,Cone-Beam Computed Tomography ,Pharynx}, volume = {3}, Number = {4}, pages = {1-6}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.1}, url = {http://3dj.gums.ac.ir/article-1-143-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-143-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Tafakhori, Zahra and Kamali, Ali and Nemati, Somayeh}, title = {Developmental Stages of Third Molars in 16- to 22-year-old Patients Referred to a Clinic in Rafsanjan, Iran using Demirjian and Modified Gleiser and Hunt Methods}, abstract ={Introdouction: Age estimation is an important issue in forensics, particularly for treatment planning and determining patients’ rights. Radiographic evaluation of the third molar developmental stage is a significant criterion for age estimation. The pattern of tooth development is largely heritable and varies from race to race. The objective of this study was to radiographically examine and compare the developmental stages of the third molars with the chronological age of Rafsanjan’s young individuals. Materials and methods: This cross-sectional study was performed on 215 patients aging 16–22 years that presented to a private oral and maxillofacial radiology clinic in Rafsanjan, Iran for panoramic radiography. Using the panoramic radiographs, the developmental stages of the third molars were determined and recorded using two methods: the Demirjian and Modified Gleiser and Hunt methods. The data thus obtained were statistically analyzed mean age of each developmental stage for each sex was determined and regression equations for age estimation were calculated. Results: In both developmental classification methods, males preceded females in terms of dental development (P < 0.001). Furthermore, there were strong correlations between teeth 18 and 28 and between teeth 38 and 48 in both males and females by either method (P < 0.001). Chronological age was acceptably predicted on the basis of the gender and developmental stages of the teeth 28 and 48 using both methods (R2 = 45.4%, Demirjian method R2 = 42.5%, Modified Gleiser and Hunt method). Conclusion: The results suggest that third molar developmental stages studied using panoramic radiographs could be suitable for estimating chronological age.}, Keywords = {Molar ,Third. Radiography ,Panoramic ,Age Determination by Teeth}, volume = {3}, Number = {4}, pages = {7-14}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.7}, url = {http://3dj.gums.ac.ir/article-1-144-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-144-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Vejdani, Javaneh and Heidarzade, Abtin and Darkhaneh, Seyed Mohamm}, title = {Eruption time of the first Primary Tooth and its Relationship with Growth Parameters in Children}, abstract ={Introdouction:Tooth eruption is recognized as an important aspect of human growth and development. It can be influenced by a number of factors, and it may reflect the general development of a child’s body. The purpose of this study was to determine the age at which the first primary tooth erupted and its relationship with height, weight and head circumference in 3-15-month children in the city of Rasht,Iran. Materials and methods: This descriptive, cross-sectional study was conducted on 648 children (288 girls and 360 boys) aged between 3–15 months, which were randomly selected from all health care centers in Rasht (the children visit these centers regularly for vaccinations). Height, weight, and head circumference were measured on the same day. From the obtained data, descriptive statistical indices were calculated for the eruption time of the primary central incisors. Cox regression analysis was used to determine the relationship between tooth eruption and the three growth parameters. Results: The timing of the eruption of the first primary tooth ranged from 5 to 14 months. The first erupted tooth was the mandibular central incisor, with the mean age of eruption of 9.93 ± 0.11 months in girls and 10.13 ± 0.1 months in boys. There was a significant association between the eruption time of the first primary tooth and weight-for-age in both girls and boys. The relationships of first primary tooth eruption with head circumference-for-age and height-for-age were significant only in boys. Conclusion: The first primary tooth erupted earlier in girls than in boys, and primary tooth eruption was significantly related to the measured growth parameters, i.e., height, weight, and head circumference.}, Keywords = {Pediatric Dentistry ,Tooth Eruption ,Tooth ,Deciduous}, volume = {3}, Number = {4}, pages = {15-19}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.15}, url = {http://3dj.gums.ac.ir/article-1-145-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-145-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Mokhtar, Ali and Bronoosh, Pegah and Haghnegahdar, Abdolaziz}, title = {Associations between Impaction Depth of the Mandibular Third Molar and Pathological Conditions}, abstract ={Introdouction: Impacted and partially erupted third molars can cause various symptoms and pathologies. The aim of this study was to determine the association between commonly observed pathological conditions and the impaction depth of lower third molar teeth. Materials and methods: In this retrospective study, 370 panoramic radiographs including 724 lower third molars were evaluated to assess several pathologies according to impaction depth. The patients were also examined clinically for pericoronitis. Impaction depth was defined according to horizontal indices in class I, II, or III, where none, less than half, or more than half of the crown was in the ramus of the mandible, respectively. The vertical indices for teeth, classes A, B, and C, were defined by the highest portion of the tooth being on a level with or above the occlusal plane, below the occlusal plane but above the cervical line of the second mandibular molar, or below the cervical line of the second mandibular molar, respectively. The data were analyzed using Chi-squared tests. Results: Of the teeth analyzed, 57%, 28.4%, and 14.6% were at vertical level A, B, and C, respectively. Of the 605 mandibular third molars, 363 (60%) were in horizontal class I, 212 (35%) were in class II, and 31 (5%) were in class III. Incidence of pericoronitis was significantly associated with partially erupted third molars and impactions of class AII (P = 0.028). Class A impaction showed a stronger association than classes B or C with all conditions (P = 0.04) except for bone loss and root resorption of second molars (P = 0.07). Conclusion: Class A impaction depth, where the highest portion of the tooth was on a level with or above the occlusal plane, was associated with more pathological conditions than classes B or C.}, Keywords = {Molar ,Third. Tooth ,Impacted,Radiography ,Panoramic.}, volume = {3}, Number = {4}, pages = {20-25}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.20}, url = {http://3dj.gums.ac.ir/article-1-146-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-146-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {Khojastepour, Leila and Dastan, Farivar and EzoddiniArdakani, Fatemeh}, title = {Evaluation of the Elongation and Calcification Patterns of the Styloid Process with Digital Panoramic Radiography}, abstract ={Introdouction:The styloid process(SP) has the potential for calcification and ossification. The aim of this study was to investigate the prevalence of different patterns of elongation and calcification of the SP. Materials and methods: In this cross-sectional study, 400 digital panoramic radiographs taken for routine dental examination in the dental school of Shiraz University were evaluated for the radiographic features of an elongated styloid process (ESP). The apparent length of SP was measured with Scanora software on panoramic of 350 patient who met the study criteria, ( 204 females and 146 males). Lengths greater than 30mm were consider as ESP. ESP were also classified into three types based on Langlais classification (elongated, pseudo articulated and segmented ). Data were analyzed by the Chi squared tests and Student’s t-tests . Results: ESP was confirmed in 153 patients including 78 males and 75 females (43.7%). The prevalence of ESP was significantly higher in males. 53.8% of males and 36.8% of female patients has ESP (P value < 0.05 ). ESP was also significantly more common in the older age group (p < 0.05). There was no statistically significant difference between the occurrence of unilateral and bilateral ESP (p > 0.05).Type I and Type II ossification pattern had almost equal frequency ( 42.5% and 43.8% respectively) Conclusion: ESP and calcification of stylohyoid ligament can be easily detected in panoramic radiograghs and is more common in older patients.}, Keywords = {Tooth Calcification ,Radiography ,Panoramic,Eagle syndrome}, volume = {3}, Number = {4}, pages = {26-31}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.26}, url = {http://3dj.gums.ac.ir/article-1-147-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-147-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} } @article{ author = {GhotbiRad, Seyed Faroogh and Havaei, Seyed Roholla and Mousavi, Elnaz and Kazemian, Rez}, title = {Endodontic Retreatment of a Maxillary First Molar with Unusual Palatal Root Canal Morphology: A Case Report}, abstract ={Introdouction: Variations in root canal morphology pose a challenge for successful endodontic treatment. The root canal anatomy of the maxillary first molar has been often described as three roots with four canals (two mesiobuccal, one distobuccal, and one palatal). The occurrence of two palatal canals in one palatal root is quite rare. This report represents the case of a maxillary first molar with unusual canal morphology in the palatal root and highlights the importance of thorough root canal exploration for successful endodontic treatment.}, Keywords = {Anatomic Variation ,Molar,Root Canal Therapy}, volume = {3}, Number = {4}, pages = {32-35}, publisher = {}, doi = {10.18869/acadpub.3dj.3.4.32}, url = {http://3dj.gums.ac.ir/article-1-148-en.html}, eprint = {http://3dj.gums.ac.ir/article-1-148-en.pdf}, journal = {Journal of Dentomaxillofacial}, issn = {}, eissn = {}, year = {2014} }