正颌外科规划软件中下颌运动交互模块的初步构建

doi:10.13701/j.cnki.kqyxyj.2024.10.005

口腔医学研究 ›› 2024, Vol. 40 ›› Issue (10): 873-877.DOI: 10.13701/j.cnki.kqyxyj.2024.10.005

正颌外科规划软件中下颌运动交互模块的初步构建

蔡安东^1,2, 王晓霞^3#, 王铁军², 杜平功², 柳忠豪^1,2*

1.滨州医学院口腔医学院·数字化口腔医学山东省高校特色实验室山东烟台 264003;
2.滨州医学院附属烟台口腔医院·数字化口腔医学技术烟台市工程研究中心山东烟台 264000;
3.北京大学口腔医学院·口腔医院口腔颌面外科国家口腔医学中心国家口腔疾病临床医学研究中心口腔数字化医疗技术和材料国家工程实验室口腔数字医学北京市重点实验室北京 100081

收稿日期:2024-05-06 出版日期:2024-10-28 发布日期:2024-10-24
通讯作者: *柳忠豪,E-mail:dentlzh@163.com
作者简介:蔡安东(1997~),女,山东烟台人,硕士在读,研究方向:口腔数字化技术应用研究。王晓霞(1971~),女,山东烟台人,博士,主任医师,研究方向:正颌外科及颌骨牵引成骨的临床和实验研究,数字化技术在正颌外科的应用,骨生物学相关临床基础研究。#为共同第一作者
基金资助:
烟台市校地融合发展项目(编号:2023XDRHXMPT11)

Preliminary Construction and Verification of Mandibular Movement Interaction Module in Orthognathic Surgery Planning Software

CAI Andong^1,2, WANG Xiaoxia^3#, WANG Tiejun², DU Pinggong², LIU Zhonghao^1,2*

1. Binzhou Medical University School of Stomatology & Characteristic Laboratories of Colleges and Universities in Shandong Province for Digital Stomatology, Yantai 264003, China;
2. The Affiliated Yantai Stomatological Hospital, Binzhou Medical University & Yantai Engineering Research Center for Digital Technology of Stomatology, Yantai 264000, China;
3. Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology ＆ National Center of Stomatology ＆ National Clinical Research Center for Oral Diseases ＆ National Engineering Laboratory for Digital and Material Technology of Stomatology ＆ Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China

Received:2024-05-06 Online:2024-10-28 Published:2024-10-24

摘要/Abstract

摘要： 目的: 基于下颌运动轨迹构建数字化正颌外科规划软件中的下颌交互模块并进行临床验证。方法: 基于CCMF Plan正颌规划软件,使用空间矩阵算法解算下颌运动轨迹数据,实现下颌运动的还原,根据距离重要性采样算法拟合患者个性化的下颌旋转轴并验证模拟下颌运动的精确性。使用下颌旋转轴指导手术规划,验证术中髁突位置实现的准确性。结果: 开发出可再现患者下颌运动,以下颌旋转轴指导升支旋转的下颌运动交互模块。该模块还原模拟的下颌运动轨迹与真实轨迹误差约1 mm,同一开口度时的下颌骨模型表面距离均方根值(root mean square,RMS)值约0.3 mm。其指导的正颌手术术后髁突的角度偏差约为3°,距离偏差约1.5 mm。结论: 该下颌运动交互模块可以较为精确地拟合下颌旋转轴,并还原患者个性化的下颌运动,术后髁突位置实现的精确性满足临床的要求。

关键词: 正颌外科, 虚拟手术规划, 骨性Ⅲ类, 下颌旋转轴, 下颌运动轨迹

Abstract: Objective: To construct and apply a mandibular interaction module in the orthognathic surgery design software based on mandibular movement trajectory. Methods: Based on CCMF Plan orthognathic planning software, the space matrix algorithm was used to solve the mandibular motion trajectory data to achieve the restoration of mandibular motion. The patient's personalized mandibular rotation axis was fitted according to the distance importance sampling algorithm, and the position relationship between the rotation axis and the condyle was analyzed. The mandibular rotation axis was used to guide surgical planning to verify the accuracy of intraoperative condylar position realization. Results: A mandibular movement interaction module was developed, which could reproduce the patient's mandibular movement and guide the ramus rotation by the mandibular rotation axis. The error between the simulated mandible trajectory and the real trajectory was about 1 mm, and the root mean square value (RMS) of the mandible model at the same opening was about 0.3 mm. The angle deviation and distance deviation of the condyle were about 3° and 1.5 mm, respectively. Conclusion: The mandibular movement interactive module can accurately fit the mandibular rotation axis and restore the patient's personalized mandibular movement. The accuracy of condylar position after operation meets the clinical requirements.

Key words: orthognathic surgery, virtual surgical planning, skeletal class Ⅲ malocclusion, mandibular rotation axis, mandibular movement trajectory

蔡安东, 王晓霞, 王铁军, 杜平功, 柳忠豪. 正颌外科规划软件中下颌运动交互模块的初步构建[J]. 口腔医学研究, 2024, 40(10): 873-877.

CAI Andong, WANG Xiaoxia, WANG Tiejun, DU Pinggong, LIU Zhonghao. Preliminary Construction and Verification of Mandibular Movement Interaction Module in Orthognathic Surgery Planning Software[J]. Journal of Oral Science Research, 2024, 40(10): 873-877.

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正颌外科规划软件中下颌运动交互模块的初步构建

Preliminary Construction and Verification of Mandibular Movement Interaction Module in Orthognathic Surgery Planning Software

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