Early postoperative evaluation of secondary bone grafting into the alveolar cleft and its effects on subsequent orthodontic treatment
Early postoperative evaluation of secondary bone grafting into the alveolar cleft and its effects on subsequent orthodontic treatment
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DOI：
10.2152/jmi.59.152
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发表时间：
2012-02-01
影响因子：
0.7
通讯作者：
Nakanishi, Hideki
中科院分区：
文献类型：
--
作者：
Seike, Takuya;Hashimoto, Ichiro;Nakanishi, Hideki
背景资料：牙槽骨植骨是唇腭裂患者实现良好咬合的标准手术，用于功能和美学目的。以往评价植骨术后骨桥形成的主要方法是X线片，如牙科X线片、咬合X线片和全景片。目的：利用CT扫描（常规和QCT）对骨桥进行定性和定量评价。定量计算机断层扫描（QCT）先前已用于测量腰椎的骨矿物质密度。患者和方法：该研究包括26名男性和15名女性患者，他们接受了牙槽骨移植。我们分析了骨桥的四个因素：边缘骨水平，垂直高度，前后骨宽度和骨密度使用牙科X线片，和CT扫描，如传统和QCT。术后2年以上评价正畸治疗的临床效果。结果如下：当骨桥满足以下标准时，正畸治疗被认为是成功的：边缘骨水平3，垂直高度>= 6.5 mm，前后骨宽度>= 5 mm，骨密度
Background : Alveolar bone grafting is a standard procedure used to achieve good occlusion for both functional and aesthetic purposes in patients with cleft lip and palate. At the past, main methods used to evaluate bone bridge formation after bone grafting are radiographs, such as dental, occlusal, and panoramic. Purpose : To evaluate bone bridge both qualitatively and quantitatively, we used CT scans (conventional and QCT). Quantitative computed tomography (QCT) has previously been used for measuring bone mineral density of the lumbar vertebrae. Patients and methods : The study comprised 26 male and 15 female patients who underwent alveolar bone grafting. We analyzed bone bridge with regard to four factors : marginal bone level, vertical height, anteroposterior bone width and bone mineral density using dental radiographs, and CT scans such as conventional and QCT. The clinical results of orthodontic treatment were evaluated more than 2 years postoperatively. Results : Orthodontic treatment was considered to be successful when the bone bridge satisfied the following criteria : marginal bone level 3, vertical height >= 6.5 mm, anteroposterior bone width >= 5 mm, and bone mineral density