摘要
目的研究数字化导板辅助显微根尖外科手术的精确性。方法选择就诊于我院需进行显微根尖手术的受试者20例,术前行CBCT扫描,按照随机对照原则分为两组,试验组进行根尖周病变的可视化三维模型建模、手术模拟并设计打印手术导板,在导板引导下手术,对照组进行常规手术评估设计完成手术。两组手术均由同一治疗小组完成。术后拍摄小视野CBCT进行手术精确性对比分析。结果试验组的平均偏差((0.82±0.16)mm)明显小于对照组((1.89±0.61)mm),两组差异有统计学意义。结论数字化导板辅助显微根尖手术可显著提高手术精度,减少手术损伤。
Objective To present and assess the precision of guided endodontic microsurgery with 3 D-printed template. Methods Twenty patients suffered from the failure of root canal therapy in our hospital were chosen. Periapical microsurgery was performed on all 20 patients, who were randomly divided into two groups. Guiding template fabricated by computer-aided design and computer-aided manufacturing(CAD/CAM) technology was used in the experimental group after virtual surgical planning and simulation, while traditional method was applied in the control group. The postoperative 3 D reconstructed computed tomography image and the presurgical plan were compared to evaluate the precision. Results The precision of periapical microsurgery based on 3 D-printed templates in the experimental group(0.82±0.16)mm was better than that in the control group(1.89±0.61)mm. There was significant difference between the two groups(P<0.05). Conclusion The 3 D-printed template could effectively guide periapical microsurgery, providing positional control with considerable precision and reducing surgical trauma.
作者
李佳洋
牛晨光
陈栋
韦晓玲
LI Jiayang;NIU Chenguang;CHEN Dong;WEI Xiaoling(Department of Endodontics,Shanghai Stomatological Hospital,Fudan University,Shanghai 200000,China)
出处
《口腔医学》
CAS
2021年第4期323-327,共5页
Stomatology
基金
上海市口腔病防治院院级课题(SSDC-2018-07)
上海市卫计委面上项目(201740051)。
关键词
3D打印
手术导板
慢性根尖周炎
显微根尖手术
3D printing
surgical template
chronic apical periodontitis
endodontic microsurgery
