中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (13): 2332-2335.doi: 10.3969/j.issn.1673-8225.2012.13.012

• 数字化骨科 digital orthopedics • 上一篇    下一篇

牙种植中数字化曲面断层与锥体束CT应用的对比

张云龙，李长福   

  1. 天津医科大学口腔医院，天津市 300070
  • 收稿日期:2011-10-31 修回日期:2012-02-16 出版日期:2012-03-25 发布日期:2012-03-25
  • 通讯作者: 李长福，教授，主任医师，天津医科大学口腔医院，天津市 300070 lichangfu1950@hotmail.com
  • 作者简介:张云龙，男，1973年生，天津市人，汉族，1998年天津医科大学毕业，技师，主要从事医学影像学方面的研究。 zhang1qiu2shui3@sina.com

Application of orthopantomography and cone beam computed tomography in dental implant: A comparative study  

Zhang Yun-long, Li Chang-fu   

  1. Stomatology Hospital of Tianjin Medical University, Tianjin  300070, China
  • Received:2011-10-31 Revised:2012-02-16 Online:2012-03-25 Published:2012-03-25
  • Contact: author: Li Chang-fu, Professor, Chief physician, Stomatology Hospital of Tianjin Medical University, Tianjin 300070, China lichangfu1950@hotmail.com
  • About author:Zhang Yun-long, Technician, Stomatology Hospital of Tianjin Medical University, Tianjin 300070, China zhang1qiu2shui3@sina.com

PDF

426

被引次数

18

摘要：

背景：影像学检查可及时了解牙种植位置信息，但目前常用的数字化颌骨曲面断层对判定骨的高度和宽度存在误差。
目的：比较数字化曲面断层与锥体束CT在牙种植中的应用价值。
方法：选取要求行种植治疗修复缺失牙，牙周状况良好，符合种植术适应证的患者53例(65颗)，种植前以一直径为3 mm的钢球为标记物置于患者待种植区，锥体束CT及普通数字化曲面断层分别测量三维重建图像及曲面断层片中标记物的直径，并与真实值进行比较，分析二者骨整合检出率差异。
结果与结论：相比于数字化曲面断层，口腔种植前锥体束CT测量的小钢球直径与真实值差异较小(P < 0.01)。种植后3个月，锥体束CT和普通数字化曲面断层得出的未发生骨结合的检出率接近(P > 0.05)。说明与普通数字化曲面断层相比，锥体束CT可以更准确的评估种植前牙槽骨的骨量，并可在种植后检查中更清晰的反映种植体周围骨质情况。

关键词: 锥体束CT, 数字化曲面断层, 三维重建, 牙种植, 骨整合

Abstract:

BACKGROUND: Imaging studies can get the information of dental implants timely. However, there are errors in the height and width of the bone when determined by commonly used orthopantomography (OPG).
OBJECTIVE: To compare the application of cone beam computed tomography (CBCT) and OPG in dental implants.
METHODS: Fifty-three patients with missing teeth (n=65) and good periodontal status were assessed with CBCT and OPG before and after implant operation. Before operation, a steel ball with a diameter of 3 mm was fixed at the implanted area as a standard object for reference. Then, the diameter of the steel ball was measured by both CBCT and OPG. After operation, the rate of osseointegration was analyzed, and the difference was compared.
RESULTS AND CONCLUSION: Compared with OPG, the difference between the real diameter and X-ray results by CBCT was smaller (P < 0.05). Three months later, the discovery rate of implant non-osseointegration measured by CBCT was similar to the result measured by OPG (P > 0.05). Compared with OPG, CBCT can evaluate the bone volume of pre-surgical alveolar bone more accurately, and can also indicate the peri-implant bone volume and quality much clearly.

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