A Clinical Observation about Characteristics of the Path of Chewing Movement in Patients with Osseointegrated Implants

Abstract

The purpose of this study was to investigate the characteristics of the path of chewing movement in patients with osseointegrated implants.
Chewing movement was recorded and analyzed by Sirognathograph Analyzing System III. Seventy patients with osseointegrated implants and 100 subjects with natural teeth were selected for this study.
The results were as follows:
1. Distribution of the patterns of chewing movement
1) Distribution of the patterns of chewing movement in patients with osseointegrated implants were different from those in subjects with natural teeth, but both groups had many of the same patterns of chewing movement.
2) Distribution of the patterns of chewing movement in patients with osseointegrated implant of full bridges, over dentures, and partial bridges differed.
2. The causes of the abnormal patterns of chewing movement
Abnormal patterns of chewing movement were mainly caused by access holes in osseointegrated implant of full bridges, abnormal occlusal planes in over dentures, and abnormal natural teeth in partial bridges.