AU - Gholinia, Faegheh AU - Dalili Kajan, Zahra AU - Irannezhad, Azin TI - Nonsurgical Miniscrew-Assisted Rapid Palatal Expansion in an Adult Patient PT - JOURNAL ARTICLE TA - gums-dent JN - gums-dent VO - 7 VI - 2 IP - 2 4099 - http://3dj.gums.ac.ir/article-1-319-en.html 4100 - http://3dj.gums.ac.ir/article-1-319-en.pdf SO - gums-dent 2 ABĀ  - Transverse maxillary deficiency is relatively prevalent in orthodontic patients. This article reports the use of a Miniscrew-Assisted Rapid Palatal Expansion (MARPE) device for the correction of transverse skeletal maxillary constriction in an adult patient. The patient was a 20-year-old girl with a transverse maxillary deficiency and bilateral posterior crossbite. A MARPE device was positioned on her palate using 4 miniscrews. The activation protocol was one-quarter turn per day every other day, with a total activation duration of 10 weeks following with a 3-month retention period. Pre-MARPE and post-MARPE cone-beam computed tomography cross sections presented a skeletal expansion of maxilla. This report confirms the effective treatment of a mature patient with severe maxillary constriction, highly deep palate, and posterior crossbite using a custom-made modification of MARPE. CP - IRAN IN - Department of Orthodontics, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran. LG - eng PB - gums-dent PG - 85 PT - YR - 2018