A case report of rheumatoid arthritis with severe osseous degenerative change in condylar head of TMJ.
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概要
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Mandibular movement of a 59-year-old female having rheumatoid arthritis was analyzed with a six-degree of freedom jaw tracking device. Severe bilateral condylar resorption was revealed in 3D-CT resulting in anterior open bite. From the jaw tracking record, the posterior reference point defined as the narrowest paths during mandibular border movement was not determined in the TMJ region but was 20mm lower than where the condylar point should have been. Although it is well known that the condylar point on the working side hardly moves during mandibular lateral movement, the working side posterior reference point of the patient moved as much as 4mm backward. Veneer crown restoration was performed to increase occlusal support in the molar region. Due to the specific anatomical and kinesiological aspects, flat occlusal surface in the molar region was placed to allow more freedom in lateral movement.
- 一般社団法人 日本顎関節学会の論文
一般社団法人 日本顎関節学会 | 論文
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