Positional and morphologic changes of the mandibular condyle after mandibular distraction osteogenesis in skeletal class II patients.

Yuko Azumi, Junji Sugawara, Ichiro Takahashi, Hideo Mitani, Hiroshi Nagasaka, Hiroshi Kawamura

研究成果: ジャーナルへの寄稿学術誌査読

28 被引用数 (Scopus)

抄録

AIM: Mandibular distraction osteogenesis has been used to correct the skeletal problems in patients with severe mandibular deficiency. Short-term effects of mandibular distraction osteogenesis on condylar position, condylar morphology, and temporomandibular joint symptoms in patients with severe skeletal Class II malocclusions were evaluated. MATERIAL AND METHODS: The records of 13 patients who had undergone bilateral mandibular lengthening and/or midline mandibular widening were analyzed. Pre- and postoperative positional changes of the mandibular condyle in the glenoid fossa, the axial rotation of the condylar head, and the temporomandibular joint symptoms were evaluated. RESULTS: Most of the condyles were displaced in an upward and backward direction in the glenoid fossa; the amount correlated with the amount of mandibular lengthening. Resorption was observed in 20% of condyles; the incidence of the resorption correlated with incidence of preoperative articular disc displacement and with the amount of condylar displacement. CONCLUSION: Distraction protocols should be performed with particular attention when patients with articular disc displacement require a large amount of distraction.

本文言語英語
ページ(範囲)32-39
ページ数8
ジャーナルWorld journal of orthodontics
5
1
出版ステータス出版済み - 2004
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 医学一般

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