下顎頭切除後の顎関節再建に人工下顎窩を用いた1例

概要

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Temporomandibular joint (TMJ) surgery for trauma, ankylosis, osteoarthritis, pain and dysfunction has a long history. Presently, many of the procedures described in the past and combinations of procedures are performed. But, condylectomy invariably leads to changes in TMJ function and dental occlusion. Especially, erroneous physical therapy often leads to cross bite, backward, downward, rotation of the mandibular with open-bite and masticatory problems as a result, although intensive physical therapy seems to give reasonable functional results after condylectomy. We have reported on partial TMJ reconstruction by Proplast® TMJ glenoid fossa prosthesis type V-K as treatment for secondary malocclusion, TMJ dysfunction and jaw deformity after condylectomy. However, a review of the literature supported the fact that permanent use of teflon and Proplast® as glenoid fossa prosthesis in the temporomandibular joint should be followed up for a longer time.