前歯部単独植立インプラントの臨床的検討

―歯周病学的指標による5年間の経過観察―

抄録

Introduction: Single standing implants have become an increasingly used treatment option and some studies reported favorable results. However, for the incisor area for single standing implants, it is sometimes difficult to get an optimal and long-lasting esthetic outcome compared to the molar area, so in the incisor area, prosthetic considerations have been discussed.
The aim of this study was to identify some differences in periodontal view between the incisor area and molar area concerning single standing implants.
Material and method: 27ITI Bonefit® implants which had been functioning for more than five years were selected for this study. They were checked from various aspects, especially periodontal point of view, and their statistical data were compared to data of the molar area.
Result: The most common implant site was the upper incisor area, and the most common implant size was 3.3 mm in diameter and 14 mm in length.
As for complications, screw loosening and peri-implant-mucositis were observed, but severe complications such as loss of osseo-integration or loss of attachment were not observed.
Periodontal parameters show that the BOP score and the change of DIB were slightly higher than the data in the molar area which we had already reported prior to this study, but there were no statistically significant differences between them.
Conclusion: The results suggested that single standing implants in the incisor area would be safe and predictable even from a periodontal point of view.