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The International Journal of Adult Orthodontics & Orthogathic Surgery
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Publication:
International Journal of Adult Orthodontics and Orthognathic Surgery

Year 1992
Volume 7 , Issue 1

Back
Pages: 37 - 41

Surgically assisted rapid maxllary expansion in adults

Pogrel/Kaban/Vargervik/Baumrind

Twelve adults with maxillary width discrepancy of greater than 5 mm were trated by surgicaly assisted rapid maxillary expansion. The procedure consisted of bilateral zygomatic buttress and midpalatal osteotomies combined with the use of a tooth-borne orthopedic device postoperatively. Mean palatal expansion of 7.5 mm (range of 6 to 13 mm), measured in the first molar region was achieved within 3 weeks in all patients. Expansion remained stable during the 12-month study period, with a mean relapse for the entire group of 0.88 +- 0.48 mm. Morbidity was limited to mild postoperative discomfort. The results of this preliminary study indicated that surgically assisted rapid maxillary expansion is a safe, simple, and relaible procedure for achieving a permanent increase in skeletal maxillary width in adults. Further study is necessary to document the three-dimension movements of the maxillary segments and long-term stability of the skeletal and dental changes.

 

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