Corega C, Vaida L, Festila D G, Rigoni G, Albanese M, D'Agostino A, Chiarini G, Nocini P F, Bertossi D
Department of Orthodontics, University Paris V Renee Descartes, Paris, France -
Minerva Stomatol. 2014 Jan 14.
Dental crowding is frequently associated with transverse jaw discrepancies, resulting in a less-than-ideal position of the teeth in the basal bone. The classic aproach for correcting bimaxillary crowding are extractions or arch expansion. Rapid maxilla-mandibular expansion was used to treat transverse discrepancies in growing patients, but with aging, the upper and lower jaw bones become increasingly resistant to expansion. The surgically assisted rapid maxillary expansion (SARME) and the mandibular midsymphyseal distraction osteogenesis procedure overcome this age limitation and are of great importance for the treatment of transverse discrepancies in adults. The aim of this paper is to report a case with a severe transverse deficiency treated with SARME, mandibular midsymphyseal distraction together with orthodontic treatment in an adult patient. The case highlights the esthetic advantages of increasing the transversal dimension of both jaws in patients with severe crowding associated with constricted dental arches and recommends the maxillo-mandibular transverse distraction osteogenesis as an and effective form of surgical treatment for patients with malocclusions or dentofacial deformities featuring severe transverse discrepancies, combined with a carefully monitored orthodontic treatment.
牙列拥挤常与颌骨横向差异相关，导致牙齿在基骨中的位置不理想。矫正双颌牙列拥挤的经典方法是拔牙或扩弓。快速上颌-下颌扩弓用于治疗生长发育期患者的横向差异，但随着年龄增长，上下颌骨对扩弓的抵抗性越来越强。外科辅助快速上颌扩弓（SARME）和下颌正中联合牵张成骨术克服了这一年龄限制，对治疗成人的横向差异具有重要意义。本文旨在报告一例成年患者采用SARME、下颌正中联合牵张并结合正畸治疗的严重横向牙弓狭窄病例。该病例突出了在伴有牙弓狭窄的严重牙列拥挤患者中增加上下颌横向尺寸的美学优势，并推荐上颌-下颌横向牵张成骨术作为一种有效的手术治疗方式，用于治疗伴有严重横向差异的错牙合畸形或牙颌面畸形患者，并结合精心监测的正畸治疗。
