Development of a 3D printed jaw deviation measuring instrument and its application in the rehabilitation period of patients with jaw asymmetry

doi:10.19438/j.cjoms.2024.03.009

Abstract

Abstract: PURPOSE: To develop a 3D printed jaw deviation measuring instrument and preliminarily explore its application in the rehabilitation period of patients with jaw deviation. METHODS: Twenty patients with jaw deviation admitted to Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine from July 2021 to December 2022 were selected and randomly divided into experimental group (n=10) and control group (n=10) using a digital randomization table. The experimental group used a 3D printed jaw deviation measuring instrument during the perioperative and rehabilitation periods, while the control group used conventional measurement methods during the perioperative and rehabilitation periods. Differences in pain, speech articulation, chewing function, and related quality of life were compared between the two groups. SPSS 24.0 software package was used for data analysis. RESULTS: At 1, 3 and 6 months after operation, pain VAS score of the experimental group was significantly lower than that of the control group(P<0.001), bite force score and speech articulation score were significantly higher than that of the control group(P<0.001). The scores of Orthognathic Quality of Life Questionnaire(OQLQ) at 1, 3 and 6 months after operation in the experimental group were significantly higher than those in the control group(P<0.05). CONCLUSIONS: The 3D printed jaw deviation measuring instrument can help patients and doctors to accurately measure the degree of patients' mandibular deviation in a personalized and visual way, which can solve the cumbersome and subjective problems of traditional measurement methods. It can improve patients' pain and speech clarity, reduce the occurrence of complications, reduce clinical workload, enhance patients' confidence and behavior in rehabilitation training, beautify the appearance of patients, promote functional recovery, and improve their quality of life. It is worth promoting and using in clinical practice.

Key words: 3D Printing, Asymmetric jaw measuring instrument, Asymmetric jaw, Rehabilitation, Pain, Speech clarity, Chewing function

CLC Number:

R782.2

YU Xi-xi, XU Zhu-feng, ZHANG Yuan-yuan, LYU Ming-ming, WANG Jin-bing, WANG Yue-ping. Development of a 3D printed jaw deviation measuring instrument and its application in the rehabilitation period of patients with jaw asymmetry[J]. China Journal of Oral and Maxillofacial Surgery, 2024, 22(3): 255-260.

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