关键词: 正畸牵引, 残冠残根, 牙折断, 冠根折, 桩核冠修复

Abstract: Objective To evaluate the effect of orthodontic extrusion on the management of fractured/diseased teeth. Methods A series of procedures were designed and applied to manage 24 cases with orthodontic extrusion to elevate the fracture or diseased line of the teeth supragingivally and surgical recontouring of the altered gingival margin. Finally, the teeth were restored prosthodontically. Prosthetic treatment was based on performing a post and core, and porcelain crown on the extruded teeth. Results The management leaded to good effect in 22 cases avoiding extraction of the teeth. Two failures included one loose tooth and the other periodontal abscess after orthodontic extrusion. Conclusion Orthodontic extrusion is an effective practice in managing tooth lesions below the gingiva as a conservative method.

Key words: orthodontic extrusion, residual crown and root, tooth fracture, prosthodontic restoration, postcore crown