Evaluation of the treatments in young people with an anteriorly displaced disc of the TMJ.

概要

論文の詳細を見る
The effects of methods which were intended to reduce the anteriorly displaced disc and to maintain it in the correct position were investigated for young patients under 19 years of age with the anteriorly displaced disc of the temporomandibular joint (TMJ).Seventeen patients were treated by means of an occlusal splint only, 5 prosthodontic treatment following splint therapy, and 4 Bionator following splint therapy.Those patients were observed for more than 6 months.Discs in 10 patients of anterior displacement were reduced by mandibular manipulation before various treatments.The results were as follows; 1. Splint All cases were treated with anterior repositioning splints.Although the effectiveness was observed concerning the pain at the affected joint, there were no cases whose disc was still reduced when the splint was removed. 2. Prosthodontic treatment following splint therapy There were 2 cases whose disc was completely reduced and 3 cases whose reduced disc was displaced again after the prosthodontic treatment. 3. Bionator therapy following splint therapy There was decrease in over jet and over bite owing to the increase in the vertical occlusal height in all 4 cases.The complete reduction of the disc was achieved in three cases upon removal of a Bionator and one side in a bilateral case.There was no recurrence of pain of the joint and masticatory muscles or displacement of the disc. Although it was considered that splint treat ment is effective to eliminate pain and reduce the disc while the splint was applied, it seems necessary for the following final occlusal reconstruction after splint therapy to prevent recurrence of displacement.The cause of the recurrence of displacement in prosthodontic cases was thought to be the disharmony between the occlusion and the function of the TMJ and it seems difficult to determine the occlusion by irreversible prosthodontic treatment during the growing stage in young patients. On the other hand, Bionator resolved pain at the TMJ and masticatory muscles, and maintained the proper position of the disc.It is thought that the Bionator can change the occlusion continuously utilizing the inherent eruptive force of the teeth in young people in harmony with the function of the TMJ. Furthermore, it seems to direct the disturbed dento-maxillary development by various methods toward the proper one.

Evaluation of the treatments in young people with an anteriorly displaced disc of the TMJ.

スポンサーリンク

概要

著者

関連論文

スポンサーリンク