Severe gummy smile with class II malocclusion treated with LeFort I osteotomy combined with horseshoe osteotomy and intraoral vertical ramus osteotomy.

Acta medica Okayama 2013 Vol.67(1) p. 55-60

Shimo T, Nishiyama A, Jinno T, Sasaki A

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Abstract

In this article, we report the successful surgical treatment of a patient, 34 years of age, who had a severe gummy smile and a class II malocclusion. The patient had an 11-mm gingival exposure during full smile and a convex profile. A LeFort I osteotomy combined with a horseshoe osteotomy was used for the superior repositioning of the maxilla;then, an intraoral vertical ramus osteotomy (IVRO) and genioplasty were performed for mandibular advancement. The maxilla was acceptably impacted 8mm at the first incisor and 5mm at the first molar. Both the occlusion and facial appearance were significantly improved by this surgical-orthodontic treatment. Our results suggest that the combination of a horseshoe osteotomy with a LeFort I osteotomy is a useful technique for reliable superior repositioning of the maxilla.

추출된 의학 개체 (NER)

유형영어 표현한국어 / 풀이UMLS CUI출처등장
해부 maxilla 상악골 dict 3
시술 genioplasty 턱끝성형술 dict 1
합병증 intraoral vertical scispacy 1
질환 malocclusion C0024636
Malocclusion
scispacy 1
질환 horseshoe osteotomy and intraoral vertical ramus osteotomy scispacy 1
질환 gummy smile C3696916
Gummy smile
scispacy 1
질환 IVRO → intraoral vertical ramus osteotomy scispacy 1
기타 class II scispacy 1
기타 patient scispacy 1
기타 mandibular scispacy 1
기타 incisor scispacy 1

MeSH Terms

Adult; Female; Humans; Malocclusion, Angle Class II; Osteotomy; Osteotomy, Le Fort; Smiling

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