套筒冠在齿槽突裂及前牙区颌骨缺损修复中的应用

The application of telescopes in the restoration of alveolar process cleft and the defects of front maxillae

目的：探索应用套筒冠固位技术修复齿槽突裂及前牙区颌骨缺损的可行性。方法：应用４～５只套筒冠做为齿槽突裂及前牙区颌骨缺损修复体的固位体，采用金属网做为缺损区牙齿和软组织修复体的连接体，应用烤瓷冠或金属－树脂冠修复牙列缺损，应用树脂材料修复齿槽突及腭部缺损区；形成套筒冠固位的齿槽突裂及腭部缺损修复体，并采用主、客观指标评价其修复效果。结果：经６例患者２６～２８个月的随访证明：套筒冠式修复体固位稳定良好，取戴方便，舒适耐用，能满意地修复齿槽突裂、前牙区颌骨缺损以及腭部缺损。结论：套筒冠式修复体是一种齿槽突裂及前牙颌骨缺损的良好修复方式，值得推广。

Objective: To explore the possibility to restore alveolar process cleft and the defects of front maxillae with telescope techniques. Methods: 4-5 telescopes were used as retainers of a prosthesis for cleft alveloar process or the defects of front maxillae; metal framework was used as connector of abutments and obturator in soft-tissue defect. Porcelain or resinmetal crowns were applied to restore defects in dentition. Acrylic resin was applied to repairs the deftcts of alveolar process and front maxillae or defect of palate. By above ways, prostheses were fabricated, the patients were followed up. Results:The following up for 26-28 months in 6 cases showed that the prosthesis retained with telescopes had follow advantages: good retention, convenient application, high masticatary function and satisfactory esthetics effects. Conclusion:The prosthesis with telescopes is feasible for the restoration of cleft alveolar process and the defects of front maxillae.