中国组织工程研究2017，Vol.21Issue(20)：3152-3157,6.DOI:10.3969/j.issn.2095-4344.2017.20.007
锥形束CT与曲面断层片在后牙区可用骨高度测量与种植模拟中的临床评价
Orthopantomography and cone-beam CT for bone height measurement and simulation in posterior implant region
卢曦 1苏怡1
作者信息
- 1. 复旦大学附属眼耳鼻喉科医院口腔科,上海市 200031
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摘要
Abstract
BACKGROUND: Cone-beam CT (CBCT) and orthopantography are two imaging methods mostly used in the preoperative evaluation of dental implantation. CBCT has high cost and low penetration rate, but orthopantography can result in a larger error in the measurement of bone quantity.OBJECTIVE: To compare the accuracy of bone quantity measurement using CBCT and orthopantography, and to evaluate the clinical effect of simulation in posterior implant region. METHODS: 115 implants from 72 patients undergoing implantation of posterior teeth in the Eye & ENT Hospital of Fudan University were selected. The horizontal heights from the top of the alveolar bone to the important anatomic structures (mandibular nerve or maxillary sinus floor) were measured using CBCT and orthopantography and then analyzed statistically. The implantation simulations were performed using Planmeca Romexis3.8 (for CBCT) and Cliniview9.3 (for orthopantography) to compare the differences in stimulated and postoperative horizontal heights.RESULTS AND CONCLUSION: There were significant differences in the measured data between CBCT and orthopantography (P < 0.05), especially in the maxilla (P < 0.01). There were significant differences between the simulated and postoperative results of the two methods (P < 0.05). The average error and standard deviation in orthopantography were larger than those in CBCT. The average error of implantation simulation using CBCT in the maxilla was smaller than that using orthopantography, whereas the error was similar in mandibular simulations. To conclude, CBCT is more accurate for assessing the quantity of bone in posterior implant region, especially in the maxilla. The accuracy of CBCT and orthopantography in implantation simulation needs to be improved.关键词
组织构建/骨组织工程/牙种植/后牙区/牙槽骨/骨植入物/组织构建/三维重建/口腔修复分类
医药卫生引用本文复制引用
卢曦,苏怡..锥形束CT与曲面断层片在后牙区可用骨高度测量与种植模拟中的临床评价[J].中国组织工程研究,2017,21(20):3152-3157,6.
