Computerized ultrasonic axiographic evaluation of condylar movement in patients with internal derangement of the temporomandibular joint

To evaluate condylar movement during lateral excursion in individuals with internal derangement of the temporomandibular joint (TMJ) using ultrasonic axiography. A total of 34 patients with internal derangement of the TMJ and 34 participants in the control group were examined. Mandibular functional...

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Published inThe Angle orthodontist Vol. 89; no. 6; pp. 924 - 929
Main Authors Choi, Byung-Taek, Hwang, Dae-Young, Lee, Gye-Hyeong, Moon, Da-Nal, Lee, Kyung-Min
Format Journal Article
LanguageEnglish
Published United States Edward H. Angle Society of Orthodontists 01.11.2019
Subjects
Dentistry
Humans
Jaw Relation Record
Joint Dislocations
Mandibular Condyle
Movement
Original
Range of Motion, Articular
Temporomandibular Joint
Ultrasonics
Temporomandibular joint
Condylar movement
Ultrasonic axiography
Jaw relation record
Internal derangement
Computerized axiography
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Summary:To evaluate condylar movement during lateral excursion in individuals with internal derangement of the temporomandibular joint (TMJ) using ultrasonic axiography. A total of 34 patients with internal derangement of the TMJ and 34 participants in the control group were examined. Mandibular functional movement was recorded by ultrasonic axiography. Three-dimensional condylar movement was measured in the working and balancing condyles. Significant differences in condylar movement were found between the two groups. In the group with internal derangement of the TMJ, the three-dimensional linear distances of the condylar path in a working condyle were greater than in the control group during lateral excursion. The speed of the balancing condyle in the returning path of lateral excursion was significantly greater in the group with internal derangement than in the control group. The results of the present study indicate that internal derangement of TMJ may affect the working and balancing condylar movements during lateral excursion.
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Private Practice, Gwangju, Korea.
Clinical Professor, Department of Orthodontics, School of Dentistry, Seoul National University; and Private Practice, Seoul, Korea.
Postgraduate Student, Department of Orthodontics, School of Dentistry, Chonnam National University, Gwangju, Korea.
Private Practice and Adjunct Professor, Department of Orthodontics, School of Dentistry, Chonnam National University, Gwangju, Korea.
Associate Professor, Department of Orthodontics, School of Dentistry, Chonnam National University, Gwangju, Korea
ISSN:0003-3219
1945-7103
DOI:10.2319/110618-792.1