Evaluation of the accuracy of a fully digital method of measuring sagittal condylar inclination
10.7518/hxkq.2024.2023242
- VernacularTitle:一种全数字化前伸髁导斜度测量方法的准确性研究
- Author:
Zheqing ZHOU
1
,
2
;
Siyu WANG
;
Quan YUAN
;
Li YUE
;
Shengtao YANG
Author Information
1. 口腔疾病防治全国重点实验室 国家口腔医学中心 国家口腔疾病临床医学研究中心
2. 四川大学华西口腔医院口腔修复工艺科,成都 610041
- Keywords:
sagittal condylar inclination;
virtual facebow;
virtual articulator;
face scan;
jaw motion tracking system
- From:
West China Journal of Stomatology
2024;42(1):67-74
- CountryChina
- Language:Chinese
-
Abstract:
Objective This clinical study aimed to evaluate the accuracy of a fully digital technique for mea-suring sagittal condylar inclination(SCI),as well as vali-dating whether differences existed between the left and right SCI values of the same participant,to provide a ref-erence for clinical practice.Methods Ten participants with good occlusal relationship and normal temporomandibular joint were recruited.Three methods were used to mea-sure the SCI values of the participants,namely,A(mechanical facebow transferring and mechanical articulator-based measuring method with physical protrusive interocclusal registration),B(face scan-based virtual facebow and virtual ar-ticulator-based measuring method with digital protrusive interocclusal registration),and C(jaw motion tracking system-based measuring method).With the group subjected to methods A and C as the control,the SCI values obtained by the three methods were statistically analyzed.The left and right SCI values of the same participant were also compared.Re-sults The left and right SCI values measured by method A were 41.70°±7.09° and 42.80°±8.62°,those by method B were 35.09°±12.49° and 37.63°±12.10°,and those by method C were 39.43°±8.72° and 38.45°±6.91°.No significant dif-ference existed among the SCI values measured by the three methods(P>0.05).Meanwhile,no statistical difference existed between the SCI values on the left and right sides of the same participant(P>0.05).Conclusion The accuracy of the virtual facebow and digital protrusive occlusal registration based SCI measuring method was the same as that of mechanical facebow based and jaw motion tracking system-based methods.The SCI values on the left and right sides of the same participant were similar.Clinically,an appropriate SCI measurement and setting strategy can be selected based on the actual situations.
