Tegsjö U, Valerius-Olsson H, Andersson L
Swed Dent J. 1984;8(6):257-63.
Two surgical techniques for exposure of impacted labially positioned maxillary canines were compared as to periodontal conditions at the end of the orthodontic treatment period. In the radical exposure group the alveolar mucosa and bone covering the crown were removed. In the other group a pedicle flap including keratinized gingiva was used for exposure. After the removal of bone the flap was apically positioned and sutured. The non-treated contralateral canines served as controls. The result showed that radical exposure in the region of alveolar mucosa resulted in significantly reduced width of buccal keratinized gingiva, reduced sulcus depth, increased gingival recession and increased gingivitis. The difference between the apically positioned flap group and the non-treated control groups was not significant.
比较了两种用于暴露唇侧阻生上颌尖牙的外科技术在正畸治疗期末的牙周状况。在根治性暴露组中，去除覆盖牙冠的牙槽黏膜和骨组织。在另一组中，使用包含角化牙龈的带蒂瓣进行暴露。去除骨组织后，将瓣向根尖方向定位并缝合。未治疗的对侧尖牙作为对照。结果表明，牙槽黏膜区域的根治性暴露导致颊侧角化牙龈宽度显著减小、龈沟深度减小、牙龈退缩增加以及牙龈炎增加。根尖向定位瓣组与未治疗对照组之间的差异不显著。
