顎裂部への二次的骨移植術後の骨吸収の検討　　顎裂隣接歯根に沿った移植骨の術後吸収について

DOI 被引用文献6件 参考文献17件

書誌事項

タイトル別名
  • Postoperative resorption of transplanted bone after secondary bone grafting in alveolar cleft. Bone resorption along tooth roots adjacent to the alveolar cleft.
  • Bone resorption along tooth roots adjacent to the alveolar cleft
  • 顎裂隣接歯根に沿った移植骨の術後吸収について

この論文をさがす

抄録

The purpose of this study was to clarify the factors affecting postoperative resorption of transplanted bone along tooth roots adjacent to the alveolar cleft in patients with cleft lip and/or palate.<BR>We studied radiographs taken before, just after, and at least 6 months after bone grafting to 140 alveolar clefts in 122 patients with cleft lip and/or palate at the First Department of Oral and Maxillofacial Surgery, Kyushu University Dental Hospital from 1987 to 1997. Ninety-two patients received autogenous iliac bone grafts, and 30 received mixed grafts of autogenous bone and hydroxyapatite granules.<BR>The type of transplanted bone resorption was classified into three groups: slight to medium resorption, severe resorption at the center of the alveolar ridge, and severe resorption along the tooth roots adjacent to the alveolar cleft. Changes in the level of the alveolar margin adjacent to the alveolar cleft were traced longitudinally.<BR>Bone resorption was slight to medium in 85% of the patients, severe at the center of the alveolar ridge in 10%, and severe along the roots in 5%. In patients younger than 12 years, bone resorption was less than in older patients. Serious resorption along the tooth roots adjacent to the alveolar cleft was detected in 7 patients, and such changes were often observed at the distal surface of the upper central incisor roots. The level of the alveolar margin in younger patients was maintained at a high level both preoperatively postoperatively, while in older patients the height of the alveolar margin frequently decreased. Although the alveolar margin was elevated by transplanted bone in such patients, the final level of the alveolar margin relapsed to the same level as the initial position.<BR>Our findings suggest that the preoperative condition of periodontal tissue adjacent to the alveolar cleft as well as general and local bone remodeling activity influences the outcome of secondary bone grafting. Therefore, ore, bone grafting before eruption of the upper canines and the maintenance of healthy periodontal tissue are considered important factors in the management of alveolar cleft.

収録刊行物

被引用文献 (6)*注記

もっと見る

参考文献 (17)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ