Complete 3D Kinematics Parameters of the Temporo-Mandibular Joints Using in Vivo Data Fusion

IF 5.6 4区 医学 Q1 ENGINEERING, BIOMEDICAL Irbm Pub Date : 2023-10-04 DOI:10.1016/j.irbm.2023.100804
Gaël Bescond , Michèle Gales , Régine Glineur , Viktor Sholukha , Stéphane Louryan , Serge Van Sint Jan
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Abstract

Objectives

The temporo-mandibular joint (TMJ) has implications in vital functions and its disorder prevalence is between 5% and 12%. The mandible motions rely on two joints where mandibular condyles are generally asymmetric and highly individual. They rotate during jaw opening and closing and translate vertically and anteroposteriorly. Quantitative motion analysis tools are of interest to better understand normal and abnormal TMJ behavior. Previous studies have reported the asymmetrical behavior of the mandible compared to the skull as well as the synchronism of rotation and translation during its motions. But none of them has developed an experimental protocol using in vivo motion data fused with a tridimensional (3D) model. Therefore, we aim to provide the detailed kinematic parameters of the mandible compared to the skull, of the 2 condyles compared to their sockets and the instantaneous helicoidal axis (IHA) calculation through a clearly described new technology: in vivo data motion fused with virtual palpation on 3D models. We also compare the accuracy and the consistency of our results with the existing literature.

Material and methods

Five healthy subjects fitted with a tailor-made dental and head clusters performed mouth opening/closing, diduction and chewing motions. 15 anatomical landmarks (ALs) were palpated on their skull and their mandible. The trajectory of the markers and ALs was recorded by opto-electronic cameras. 3D models created from magnetic resonance imaging (MRI) from the 5 subjects were processed through a segmentation procedure and imported into a musculo-skeletal data processing software. Virtual palpation was used to locate specific ALs and to build coordinate systems following the ISB recommendations. The ALs coordinates, the motion files and the morphological model were fused. Motion cycles were normalized from 1 to 100% of rotations and translations duration in coordinate systems, instantaneous helical axis (IHA) parameters were computed for the 3 motions.

Results

Median RMSE between manually and virtually palpated ALs was 8,0 mm.

During opening motion, rotation around the Z-axis (median 24,9°), translations along the X-axis and the Y-axis (median 9,7 mm and 6,3 mm respectively) were happening all at once. The IHA was obliquely orientated.

During diduction motion, rotations around the Y-axis and the X-axis (median 10,7° and 3.3° respectively), translation on the Z-axis is (median −9.4 mm) occurred simultaneously. The IHA orientation was oblique and changed accordingly to the diduction side.

During chewing motion, median rotation around the Z-axis was −2.2° and median translation on the Y-axis −1.0 mm. The IHA pathway high asymmetry coincided with typical movements of working and balancing condyles.

Conclusion

Complete 3D kinematics parameters of the TMJs, corresponding to the ISB recommendations, have been extracted with our methodology. Our values matched previous studies if available and the palpation RMSE was within the bounds of precedent experimental protocol. It is therefore efficient to study in vivo motion.

Motion data have been registered in an open access data repository, allowing other researchers to exploit them and develop their own TMJ model.

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使用体内数据融合完成颞下颌关节的三维运动学参数
目的颞下颌关节(TMJ)具有重要的生命功能,其疾病患病率在5%-12%之间。下颌运动依赖于两个关节,其中下颌髁通常是不对称的并且高度独立。它们在下颌打开和闭合过程中旋转,并垂直和前后平移。定量运动分析工具有助于更好地理解TMJ的正常和异常行为。先前的研究已经报道了下颌骨与头骨相比的不对称行为,以及其运动过程中旋转和平移的同步性。但他们都没有开发出一种使用体内运动数据与三维(3D)模型融合的实验方案。因此,我们的目标是通过一项明确描述的新技术,提供下颌骨与颅骨的详细运动学参数,2个髁突与它们的牙槽的详细动力学参数,以及瞬时螺旋轴(IHA)的计算:在3D模型上融合体内数据运动和虚拟触诊。我们还将我们的结果与现有文献的准确性和一致性进行了比较。材料和方法五名健康受试者安装了特制的牙套和牙套,进行了张开/闭合、吸吮和咀嚼动作。在他们的颅骨和下颌骨上触诊了15个解剖标志(AL)。标记物和ALs的轨迹由光电相机记录。通过分割程序对5名受试者的磁共振成像(MRI)创建的3D模型进行处理,并将其导入肌肉骨骼数据处理软件。虚拟触诊用于定位特定的AL,并根据ISB建议建立协调系统。将ALs坐标、运动文件和形态学模型进行融合。运动周期在坐标系中从旋转和平移持续时间的1%到100%进行归一化,计算3个运动的瞬时螺旋轴(IHA)参数。结果手动和虚拟触诊的ALs之间的平均RMSE为8.0 mm。在打开运动过程中,绕Z轴旋转(中位数为24.9°),沿X轴和Y轴平移(中位数分别为9.7mm和6.3mm)同时发生。IHA是倾斜的。在抽吸运动过程中,绕Y轴和X轴旋转(中间值分别为10.7°和3.3°),同时发生Z轴平移(中间值为-9.4 mm)。IHA的方向是倾斜的,并相应地向构造侧改变。在咀嚼运动过程中,围绕Z轴的中间旋转为−2.2°,在Y轴的中间平移为−1.0 mm。IHA通路高度不对称与工作和平衡髁的典型运动相一致。结论用我们的方法提取了TMJ的完整三维运动学参数,符合ISB的建议。如果可用,我们的值与先前的研究相匹配,并且触诊RMSE在先前实验方案的范围内。因此,研究体内运动是有效的。运动数据已经在一个开放访问的数据存储库中注册,允许其他研究人员利用它们并开发自己的TMJ模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Irbm
Irbm ENGINEERING, BIOMEDICAL-
CiteScore
10.30
自引率
4.20%
发文量
81
审稿时长
57 days
期刊介绍: IRBM is the journal of the AGBM (Alliance for engineering in Biology an Medicine / Alliance pour le génie biologique et médical) and the SFGBM (BioMedical Engineering French Society / Société française de génie biologique médical) and the AFIB (French Association of Biomedical Engineers / Association française des ingénieurs biomédicaux). As a vehicle of information and knowledge in the field of biomedical technologies, IRBM is devoted to fundamental as well as clinical research. Biomedical engineering and use of new technologies are the cornerstones of IRBM, providing authors and users with the latest information. Its six issues per year propose reviews (state-of-the-art and current knowledge), original articles directed at fundamental research and articles focusing on biomedical engineering. All articles are submitted to peer reviewers acting as guarantors for IRBM''s scientific and medical content. The field covered by IRBM includes all the discipline of Biomedical engineering. Thereby, the type of papers published include those that cover the technological and methodological development in: -Physiological and Biological Signal processing (EEG, MEG, ECG…)- Medical Image processing- Biomechanics- Biomaterials- Medical Physics- Biophysics- Physiological and Biological Sensors- Information technologies in healthcare- Disability research- Computational physiology- …
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