Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2025
Three-Dimensional Stereophotogrammetry Facial Morphologic Signatures of Temporomandibular Disorders.
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Mei Li, Au Carmen, Foo Stacy, Gao Cui, Zhu Sichao, Guan Guangzhao
Аннотация
AIM: To utilize stereophotogrammetry to investigate changes in three-dimensional (3D) facial morphology in both TMD-free individuals and TMD patients, both before and after treatment, and to classify subjects as either TMD-free or TMD patients.
METHODS: 40 participants (TMD and TMD-free, mean age of 38.9 ± 15.3 years) were recruited from the Oral Medicine Clinic at the Faculty of Dentistry, University of Otago. Participants were given a questionnaire, and 3D images of their faces at maximum mouth opening and in occlusion were recorded using the 3dMDtrio craniofacial scanner. Participants were followed up after 3 months and 6 months. The 3D images captured were analysed using the 3dMD Vultus software.
RESULTS: Significant changes were observed between baseline and 3-month follow-up measurements in TRAR-GoR(C), GoR-GN(C) and LS-PG(O) (p < 0.05). At the 6-month follow-up, additional significant differences were found in G-PG(R), TRAL-SN(C), TRAR-GoR(C), GoR-GN(C), LS-PG(O), and maximum mouth opening (MMO) (p < 0.05). TRAR-GoR(C), LS-PG(O), TRAL-GoL(C), MMO, and TRAR-SN(C) exhibited significant correlations. LS-PG(R) was the most reliable predictor. Discriminant analysis revealed an 85% sensitivity and 90% specificity in classifying individuals with and without TMD.
CONCLUSION: Significant 3D morphological changes were detected in TMD patients' post-treatment, with notable mouth opening and masseter muscle volume reduction.
METHODS: 40 participants (TMD and TMD-free, mean age of 38.9 ± 15.3 years) were recruited from the Oral Medicine Clinic at the Faculty of Dentistry, University of Otago. Participants were given a questionnaire, and 3D images of their faces at maximum mouth opening and in occlusion were recorded using the 3dMDtrio craniofacial scanner. Participants were followed up after 3 months and 6 months. The 3D images captured were analysed using the 3dMD Vultus software.
RESULTS: Significant changes were observed between baseline and 3-month follow-up measurements in TRAR-GoR(C), GoR-GN(C) and LS-PG(O) (p < 0.05). At the 6-month follow-up, additional significant differences were found in G-PG(R), TRAL-SN(C), TRAR-GoR(C), GoR-GN(C), LS-PG(O), and maximum mouth opening (MMO) (p < 0.05). TRAR-GoR(C), LS-PG(O), TRAL-GoL(C), MMO, and TRAR-SN(C) exhibited significant correlations. LS-PG(R) was the most reliable predictor. Discriminant analysis revealed an 85% sensitivity and 90% specificity in classifying individuals with and without TMD.
CONCLUSION: Significant 3D morphological changes were detected in TMD patients' post-treatment, with notable mouth opening and masseter muscle volume reduction.