Fan Lin-Feng, Pan Xiao-Gang, Pu Yi-Ping, Lai Hong-Chang
Department of Radiology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
Shanghai Kou Qiang Yi Xue. 2008 Oct;17(5):548-51.
To compare the diagnostic value of cone beam computed tomography (CBCT) with orthpantomography(OPG) for dental implants at the posterior maxilla.
75 patients (89 positions) with dental implants in the posterior maxilla were assessed with CBCT and orthopantomography. The horizontal height from the top of the alveolar bone to the floor of sinus was measured through CBCT and OPG. The results were processed statistically with SPSS 11.5 software package for Chi-square test.
Bone deficiency was detected in 30.34% and 16.85% cases by CBCT and OPG respectively with significant difference(P=0.034). Bone osteointegration was detected in 4.95% and 11.88% cases with CBCT and OPG respectively without significant difference(P=0.413).
The quantity of bone could be evaluated more precisely by CBCT than OPG. The peri-implant bone could be demonstrated more clearly by CBCT than OPG.
比较锥形束计算机断层扫描（CBCT）与曲面体层摄影（OPG）在上颌后牙区牙种植体的诊断价值。
对75例（89个部位）上颌后牙区牙种植体患者进行CBCT和曲面体层摄影评估。通过CBCT和OPG测量牙槽骨顶部至窦底的水平高度。结果采用SPSS 11.5软件包进行统计学处理，行卡方检验。
CBCT和OPG分别在30.34%和16.85%的病例中检测到骨缺损，差异有统计学意义（P=0.034）。CBCT和OPG分别在4.95%和11.88%的病例中检测到骨骨结合，差异无统计学意义（P=0.413）。
CBCT比OPG能更精确地评估骨量。CBCT比OPG能更清晰地显示种植体周围骨组织。
