Widmann Gerlig, Bale Reto Josef
Interdisciplinary Stereotactic Intervention and Planning Laboratory, Innsbruck Medical University, Department of Radiology, Clinical Division of Diagnostic Radiology I, Austria.
Int J Oral Maxillofac Implants. 2006 Mar-Apr;21(2):305-13.
The objective of this article was to review the different factors and limitations influencing the accuracy of computer-aided implant surgery. In vitro and in vivo accuracy studies of articles and congress proceedings were examined. Similar results using bur tracking as well as image-guided template production techniques have been reported, and both methods allow for precise positioning of dental implants. Compared to the conventional technique, this sophisticated technology requires substantially more financial investment and effort (computerized tomographic imaging, fabrication of a registration template, intraoperative referencing for bur tracking, or image-guided manufacturing of a surgical template) but appears superior on account of its potential to eliminate possible manual placement errors and to systematize reproducible treatment success. The potential for the protection of critical anatomic structures and the esthetic and functional advantages of prosthodontic-driven implant positioning must also be considered. However, long-term clinical studies are necessary to confirm the value of this strategy and to justify the additional radiation dose, effort, and costs.
本文的目的是综述影响计算机辅助种植手术准确性的不同因素和局限性。对文章及会议论文集的体外和体内准确性研究进行了审查。使用车针跟踪以及图像引导模板制作技术的类似结果已有报道，这两种方法都能实现牙种植体的精确定位。与传统技术相比，这种先进技术需要大量更多的资金投入和精力（计算机断层成像、制作配准模板、术中车针跟踪参考或手术模板的图像引导制作），但因其有可能消除可能的手动放置误差并使可重复的治疗成功系统化，故而显得更为优越。还必须考虑保护关键解剖结构的可能性以及由修复驱动的种植体定位在美学和功能方面的优势。然而，需要长期临床研究来证实这一策略的价值，并证明额外的辐射剂量、精力和成本是合理的。
