Abstract
The purpose of the presened study is to test the hypothesis to possible to move teeth to a site filled with an artificial bone filling material (new ceramic material). Six adult dogs were used as experimental animals. After the extraction of anterior teeth, a bone filling material was implanted into cavities. Teeth adjacent to these extraction wounds were moved using an orthodontic appliance, and this tooth movement was evaluated on dental X-ray films and histological findings. The results obtained were as follows
1. Teeth were able to be moved to tooth extracti on cavities after the cavities were filled with an artificial material.
2. Mo vement of teeth to artificial material-filled cavities took a slightly longer period of time and caused less tipping, as compared with the control side.
3. It was histologically observed that bone fillin g materials were moved toward the tooth cervix by tooth movement, and new bone was formed around the materials. Because of this, the new alveolar bone had a larger width at the cervix, as compared with the control side. The periodontal membrane in contact with bone filling materials ran irregularly, while that on the control side showed a regular running pattern. The tooth root surface in contact with bone filling materials was slightly resorbed.
