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Zhonghua Kou Qiang Yi Xue Za Zhi. 1999 Mar;34(2):88-90.

[Experimental study on three-dimensional adjustable condyle prosthesis for reconstruction of temporomandibular joint].

[Article in Chinese]

Author information

  • 1School of Stomatology, Beijing Medical University, Beijing 100081.

Abstract

OBJECTIVE:

To study the possibility of reconstructing TMJ with a modified three-dimensional adjustable condylar prosthesis (TDACP).

METHODS:

The modified TDACP was placed immediately after resection of the mandibular ramus and condyle in 3 adult rhesus monkeys. The results were evaluated by radiography, histological and anatomical examinations, as well as chewing function at 3, 6, and 14 months after surgery.

RESULTS:

Through adjustment the condyle prosthesis could fit exactly, the functions were good, every part of the prosthesis was firm, the screws were osteointegrated, there was no adverse soft tissue reactions and no pathological changes in the TMJ of non-operated opposite condyle. Problems were: the distribution of fixation stress of screws was somewhat unreasonable, the downward sliding of the condyle was limited, there was erosion of the posterior slope of the glenoid fossa, and the articular disc could not keep its in situ place and function.

CONCLUSION:

The results suggests that the prosthesis needs further improvement.

PMID:
11834168
[PubMed - indexed for MEDLINE]
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