Sakamoto Teruo, Ishii Takenobu, Sueishi Kenji, Uchiyama Takeshi
Department of Orthodontics, Tokyo Dental College.
Department of Oral-Maxillofacial Surgery, Tokyo Dental College.
Bull Tokyo Dent Coll. 2020 Sep 4;61(3):201-209. doi: 10.2209/tdcpublication.2019-0036. Epub 2020 Aug 14.
Alveolar bone grafting is routinely performed in repair of alveolar clefts. When the alveolar cleft is wider than 11 mm, however, the survival rate of the bone graft and prognosis are poor. Here, we describe successful orthodontic treatment using interdental distraction osteogenesis (IDO) with a tooth-tooth type distractor to reduce the width of the alveolar cleft in a patient with unilateral cleft lip and palate. The patient was a 12-year-old girl with unilateral cleft lip and palate, maxillary dentition midline deviation, congenitally missing maxillary lateral incisors, a palatally-displaced right upper first premolar, a wide alveolar cleft (20 mm), and mandibular prognathism due to maxillary hypoplasia. Treatment comprised a combination of orthodontic treatment and IDO. After treatment, appropriate occlusion, space closure in the maxillary arch, coincidence of the maxillary and facial midlines, and incorporation of the right maxillary first premolar into the arch were obtained. These results suggest that IDO is effective in treating cleft lip and palate patients with a wide alveolar cleft.
牙槽骨植骨术常用于牙槽嵴裂的修复。然而，当牙槽嵴裂宽度超过11毫米时，骨移植的存活率和预后较差。在此，我们描述了一例单侧唇腭裂患者，使用牙间牵引成骨术（IDO）和牙对牙型牵张器成功进行正畸治疗以减小牙槽嵴裂宽度的案例。该患者为一名12岁女孩，患有单侧唇腭裂、上颌牙列中线偏移、先天性上颌侧切牙缺失、右上第一前磨牙腭向移位、宽牙槽嵴裂（20毫米）以及由于上颌发育不全导致的下颌前突。治疗包括正畸治疗和IDO联合应用。治疗后，实现了合适的咬合关系、上颌牙弓间隙关闭、上颌与面部中线重合以及右上颌第一前磨牙纳入牙弓。这些结果表明，IDO在治疗牙槽嵴裂较宽的唇腭裂患者中是有效的。
