Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama, Japan.
Am J Orthod Dentofacial Orthop. 2013 May;143(5):704-12. doi: 10.1016/j.ajodo.2012.04.025.
This case report describes the significance of orthodontic treatment in reconstruction of a collapsed dental arch and a malocclusion associated with severe periodontitis. A Japanese man (age, 40 years 7 months) had an anterior crossbite, a collapsed occlusion, and severe periodontitis. Orthodontic treatment included the following steps: (1) correction of the anterior crossbite, labial movement of the maxillary incisors, and intrusion and retraction of the mandibular incisors; (2) correction of the posterior crossbite on the left side, buccal movement of the maxillary left canine and first premolars, and intrusion and retraction of the mandibular first premolar into the space of the mandibular left canine; (3) correction of the crowding of the mandibular right buccal segment and alignment of the teeth after extraction of the mandibular right first molar with a periapical lesion; and (4) improvement of the occlusion, with reconstruction of an acceptable occlusion. When combined with restorative and prosthodontic treatment, a fairly good occlusion was obtained. Reevaluation of the treatment after 11 years showed that the occlusion and periodontal condition were maintained well without deepening of the pockets and further bone loss. Orthodontic treatment with a systematic approach helped to recover the occlusion and prevented the recurrence of periodontitis by acquiring a good oral environment and motivating the patient to maintain oral health.
本病例报告描述了正畸治疗在重建牙槽骨塌陷和与严重牙周炎相关的错颌畸形中的意义。一名日本男性（年龄，40 岁 7 个月）存在前牙反颌、牙列拥挤和严重牙周炎。正畸治疗包括以下步骤：（1）矫正前牙反颌，上颌切牙唇向移动，下颌切牙内收和压低；（2）矫正左侧后牙反颌，上颌左侧尖牙和第一前磨牙颊向移动，下颌第一前磨牙内收至下颌左侧尖牙间隙；（3）矫正下颌右侧颊侧段拥挤，拔除下颌右侧第一磨牙后进行牙列排齐，该牙存在根尖病变；（4）改善咬合，重建可接受的咬合。结合修复和修复体治疗，获得了相当好的咬合。11 年后的治疗效果评估显示，咬合和牙周状况保持良好，无牙周袋加深和进一步的骨丧失。通过系统的正畸治疗，获得了良好的口腔环境，同时激励患者保持口腔健康，有助于恢复咬合，预防牙周炎的复发。
