Concavity of the posterior surface of the temporomandibular condyle: clinical cases and autopsy correlation

Dento Maxillo Facial Radiology
H HosokiS Akerman

Abstract

To elucidate the significance of the radiographic finding of a concavity of the posterior surface of the temporomandibular condyle. Three clinical cases with a concavity were followed up clinically and radiographically. A total of 39 temporomandibular joint (TMJ) autopsy specimens were examined by corrected sagittal tomography and seven condyles with a concavity of the posterior surface found. They were analysed microscopically together with three joints with a normal, rounded condyle. At follow-up tomography, two of the clinical cases revealed no change while the third patient had erosive changes after 7 months. The microscopic findings of the autopsy specimens varied. The articular cartilage in three of the seven joints with a concavity was similar to that in the normal condyles. The outer surface of the articular cartilage was sometimes uneven and the cartilage thickened, with an irregular junction between the articular cartilage and subchondral bone. In three joints the cartilage in the concavity had been replaced by granulation tissue. All seven joints had increased cellular activity in the concavity. The radiographic finding of a concavity in the posterior surface of the condyle is not specific. When small and well-define...Continue Reading

References

May 1, 1977·Acta Odontologica Scandinavica·T HanssonS Kopp
Aug 1, 1990·Journal of Dental Research·A G PullingerC A Bibb
Jul 1, 1985·Journal of Oral Rehabilitation·W K SolbergB Nordström
Jul 1, 1983·The Journal of Prosthetic Dentistry·L G HanssonA Petersson
Oct 1, 1995·Acta Odontologica Scandinavica·L FlygareS Akerman
Jul 1, 1964·The American Journal of Anatomy·B C MOFFETTH C ASKEW
Jun 1, 1975·Dento Maxillo Facial Radiology·A Petersson, S Nanthaviroj

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Citations

Aug 31, 2006·Dento Maxillo Facial Radiology·S E WidmalmD C McKay

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