A clinical study of changes in the volume of bone grafts in the atrophic maxilla
A clinical study of changes in the volume of bone grafts in the atrophic maxilla
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DOI：
10.1038/sj.dmfr.4600601
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发表时间：
2001-05-01
影响因子：
3.3
通讯作者：
Hirsch, JM
中科院分区：
文献类型：
--
作者：
Johansson, B;Grepe, A;Hirsch, JM
目的：方法：10例无牙颌患者，采用自体骨颊侧高嵌体植骨至上颌骨，双侧颗粒状植骨至上颌窦。术后1~2周和6~7个月分别进行2 mm连续轴位CT扫描。结果：嵌体和贴体移植后体积分别减少了49.5%和47%。结论：颊面高嵌体和上颌窦高嵌体修复体愈合6个月后的体积变化相似，但差异较大。
Objectives: To evaluate the volumetric changes in bone grafts to the severely atrophic edentulous maxilla over 6 months.Methods: Ten edentulous patients received autogenous bone as buccal onlay grafts to the maxilla and bilaterally particulate bone grafts to the maxillary sinus. Two mm contiguous axial CT scans were obtained 1 to 2 weeks and 6 to 7 months postoperatively. The area of each graft was measured ansi the volume calculated according to the formula V-graft=Sigma of areas x the thickness of each section,Results: The volume of the inlay and onlay grafts was reduced by an average of 49.5 and 47% respectively of the initial volume. The coefficient of variation was greater in the onlay group (0.79) compared with the inlay group (0.38).Conclusions: The volumetric changes in buccal onlay and sinus inlay grafts after 6 months of healing seem similar although there was a wide range in both groups.