Can devices for the instrumental analysis of temporomandibular joints be used interchangeably?

Objective : To compare the results obtained in instrumental analysis of temporomandibular joints function using joint vibration analysis and computerized axiography in healthy young adults. Methods : The study involved 187 people aged 18-21 years old. All the participants were subjected to a clinical examination and instrumental diagnostics that included joint vibration analysis and computerized axiography. Results : Significant differences in the maximum range of condylar movement ( p = 0.0001) were reported between the group of people with healthy joints ( p = 0.001) and the remaining groups. There were significant statistical differences ( p = 0.02) between the group of people with loose articular ligaments and subluxation of the joint in terms of the parameter describing the symmetry of the sagittal position of the condyle on the distance of 5 mm. Discussion : Electrovibratography and computerized axiography did not reveal the same abnormalities in the functioning of the masticatory system.