Journal title
عنوان نشریه
Journal of Dentomaxillofacial
Literature & Humanities
http://3dj.gums.ac.ir
1
admin
doi
en
jalali
1400
10
1
gregorian
2022
1
1
11
1
online
1
fulltext
en
The Comparison of Shear Bond
Strength of Self-cured and Light-cured Composite
Restorations to Dentin, Using a Universal Bonding System
عمومى
General
پژوهشي
Original article
Introduction: To evaluate and compare shear bond strength of self-cure and <br>
light-cure composites using a universal bonding system.<br>
Materials and Methods: Superficial coronal dentin of 62 intact extracted <br>
premolars was exposed and bonding agent (All-Bond Universal) was applied over the <br>
dentin surface according to the manufacturer instruction (self-etch mode). Then <br>
samples were distributed in 2 groups (n=31), and composite cylinders were built using AELITE All-purpose Body Light-cure composite (group I) and MasterDent Self-cure composite (group II). Samples were kept in distilled water at room temperature for one week and then were thermocycled (500 cycles, 5 º C to 55º C). Finally, samples were mounted in acrylic molds and shear bond strength was assessed using a Universal Testing Machine at the crosshead speed of 0.5 millimeter per minute. Stereomicroscope was used to determine the failure mode. Bond strength data were analyzed using sample t-test and frequencies of failure types analyzed using Chi-square test.<br>
Results: Mean shear bond strength in group I (34 ± 3.56Mpa) was higher than group II (32±3.24Mpa). In addition, the prevalence of adhesive failure in group II (74.2%) was higher than group I (67.7%). However, these differences were not statistically significant.<br>
Conclusion: Our findings showed that the application of All-Bond Universal <br>
followed by a self-cured composite without using a separate self-cure activator on <br>
dentin, provides bond strength values comparable to that of a light-cured composite.<br>
Dentin-Bonding Agents
Resin Cements
Research
24
32
http://3dj.gums.ac.ir/browse.php?a_code=A-10-382-42&slc_lang=en&sid=1
Seyedeh Maryam
Tavangar
https://orcid.org/ 0000-0003-2221-5531
No
Associate professor, Department of Oral Restorative Dentistry, School of Dentisry, Guillan University of Medical Sciences, Rasht, Iran
Yasaman
Sadeghi
https://orcid.org/ 0000-0003-1301-6063
No
Assistant professor, Department of Oral Restorative Dentistry, School of Dentisry, Guillan University of Medical Sciences, Rasht, Iran
Reza
Tayefeh Davalloo
https://orcid.org/ 0000-0003-3711-3597
No
Associate professor, Department of Oral Restorative Dentistry, School of Dentisry, Guillan University of Medical Sciences, Rasht, Iran
Farideh
Darabi
https://orcid.org/ 0000-0001-8696-6698
No
Associate professor, Department of Oral Restorative Dentistry, School of Dentisry, Guillan University of Medical Sciences, Rasht, Iran
Zahra
Atrkar Roushan
https://orcid.org/ 0000-0002-1267-2133
No
Department of Biostatistics, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
Hanieh
Dadashi
https://orcid.org/ 0000-0003-1316-4162
Yes
Post graduate student of operative dentistry, Islamic Azad University of Medical Sciences, Tehran, Iran