Maeda Aya, Uehara Sawako, Suga Mayu, Nishihara Kazuhide, Nakamura Norifumi, Miyawaki Shouichi
Cleft Palate Craniofac J. 2014 Sep;51(5):525-32. doi: 10.1597/12-281. Epub 2013 Sep 18.
Objective : To examine the changes in autogenous bone from 6 to 12 months after alveolar bone grafting (ABG) (T1) through completion of edgewise treatment (T2). Design : Retrospective longitudinal study. Setting : Multidisciplinary long-term follow-up at Kagoshima University Hospital. Patients : Forty-three patients with unilateral cleft lip and palate or alveolus. Main Outcome Measures : At T1 and T2, the bone bridge and quantity of grafted bone were evaluated using the Chelsea scale and the ABG scale. The cleft-adjacent tooth angles before ABG and at T2, as well as the number of orthodontic space closures, were examined. Patients were classified as having either adequate (type A or C; adequate group) or poor bone bridges (type B, D, E, or F; poor group) by the assessment at T1. Results : At T1, the ABG scores for the cleft-adjacent central incisor side of patients in the adequate group were higher than those of patients in the poor group (P < .001). At T2, the adequate group had higher ABG scores for the cleft-adjacent central incisor side (P = .022) and the canine sides (P = .034). No significant differences in tooth angles or the number of orthodontic space closures were noted between the groups. Conclusions : These results suggest that the quantity of grafted bone in the cleft-adjacent central incisor at 6 to 12 months post-ABG may be an indicator of the quantity of grafted bone that will be present after edgewise treatment.
研究牙槽骨植骨术（ABG）后6至12个月（T1）至方丝弓矫治完成（T2）期间自体骨的变化。设计：回顾性纵向研究。地点：鹿儿岛大学医院多学科长期随访。患者：43名单侧唇腭裂或牙槽裂患者。主要观察指标：在T1和T2时，使用切尔西量表和ABG量表评估骨桥和植骨量。检查ABG术前和T2时裂隙相邻牙的角度，以及正畸关闭间隙的数量。根据T1时的评估，将患者分为骨桥充足（A或C型；充足组）或骨桥较差（B、D、E或F型；较差组）。结果：在T1时，充足组患者裂隙相邻中切牙侧的ABG评分高于较差组患者（P <.001）。在T2时，充足组裂隙相邻中切牙侧（P =.022）和尖牙侧（P =.034）的ABG评分更高。两组之间在牙角度或正畸关闭间隙数量上没有显著差异。结论：这些结果表明，ABG术后6至12个月裂隙相邻中切牙处的植骨量可能是方丝弓矫治后植骨量的一个指标。
