基于100名个别正常成人下颌运动轨迹的平均值架关键参数初探
A preliminary investigation of the key parameters of average value articulator based on mandibular movement trajectories in 100 adults with individual normal occlusion
单珅瑶 1朱玉佳 2王俊杰 3温奥楠 2高梓翔 1秦庆钊 2李文博 1王勇 2赵一姣1
作者信息
- 1. 北京大学医学部医学技术研究院,北京 100191
- 2. 北京大学口腔医学院·口腔医院口腔医学数字化研究中心口腔修复教研室国家口腔医学中心国家口腔疾病临床医学研究中心口腔生物材料和数字诊疗装备国家工程研究中心国家卫生健康委口腔医学计算机应用工程技术研究中心口腔数字医学北京市重点实验室,北京 100081
- 3. 北京为开数字科技有限公司,北京 100076
- 折叠
摘要
目的 探索基于下颌运动轨迹数据获取健康人群平均值架关键参数的方法,以期为平均值架的临床应用提供参考.方法 面向北京市招募符合纳入标准的100名个别正常健康志愿者(男性42名,女性58名),年龄18～55岁,收集下颌运动轨迹数据.通过下颌运动分析系统中生成的架参数值,获取左右侧前伸髁导斜度(SC[)及侧方髁导斜度(TCI).按性别分组,并分别计算两组及整体样本的SCI和TCI;比较两参数的性别差异以及整体样本的两参数均值与平均值架经验值(SCI为35°,TCI为15°)的差异.结果 男性SCI(35.8°±7.4°)和TCI[11.2°(11.3°)]与女性相应参数[分别为 35.6°±8.3°和 10.8°(9.5°)]的差异均无统计学意义(t=0.10,P=0.922;Z=-0.60,P=0.552);整体样本SCI(35.7°±7.9°)与平均值架经验值的差异无统计学意义(t=1.23,P=0.221),TCI[10.9°(10.3°)]显著小于平均值拾架经验值(W=5 825.00,P＜0.001).结论 本项研究100名个别正常成人下颌运动轨迹数据显示,性别因素不影响平均值架关键参数的设置,平均值架经验值的SCI适宜,TCI存在偏大的可能,临床使用架协助修复体设计时应根据患者牙列及其下颌运动的实际情况合理调整参数值.
Abstract
Objective To explore the method of obtaining the key parameters of the average value articulator in healthy people based on mandibular movement trajectory data,with a view to providing a reference for the clinical application of the average value articulator.Methods One hundred healthy volunteers(42 males and 58 females)with individual normal occlusion,aged 18-55 years old,who met the inclusion criteria were recruited from Beijing,and their mandibular movement trajectory data were collected.The left and right sagittal condylar inclination(SCI)and transversal condylar inclination(TCI)were obtained from the values of the articulator parameters which were generated in the mandibular movement analysis system.The SCI and TCI were grouped by gender and calculated separately for the two groups and the overall sample;the gender differences in the two parameters and the differences between the mean values of the two parameters and the average value articulator empirical values(35° for SCI and 15° for TCI)for the overall sample were compared.Results The differences between SCI(35.8°±7.4°)and TCI[11.2°(11.3°)]in males and the corresponding parameters[35.6°±8.3° and 10.8°(9.5°),respectively]in females were not statistically significant(t=0.10,P=0.922;Z=-0.60,P=0.552);the overall sample SCI(35.7°±7.9°)did not differ statistically from the average value articulator empirical value(t=1.23,P=0.221),and the overall sample TCI[10.9°(10.3°)]was significantly smaller than the average value articulator empirical value(W=5 825.00,P＜0.001).Conclusions The mandibular movement trajectory data of 100 adults with individual normal occlusion in this study shows that the gender factor does not affect the setting of the key parameters of the average value articulator,the SCI of the average value articulator empirical values is appropriate,and the TCI has the possibility of being on the large side.In the clinical use of the articulator to assist in the design of restorations,the parameter values should be rationally adjusted according to the actual situation of the patient's dentition and mandibular movement.
关键词
牙架/牙/下颌运动轨迹/平均值架/前伸髁导斜度/侧方髁导斜度Key words
Dental articulators/Dental occlusion/Mandibular movement trajectory/Average value articulator/Sagittal condylar inclination/Transversal condylar inclination引用本文复制引用
出版年
2024
NETL
NSTL
万方数据