1988 Volume 30 Issue 3 Pages 967-976
This report presents two cases of complications during the maintenance care phase of osseointegrated implants.
Case I: A 72-year-old female patient presented gingival hyperplasia formation around the abutment 19 months after abutment setting. We performed excision of the hyperplastic gingiva and apically positioned flap. Probing depth (PD) could not determin because of gingival hyperplasia formation pre-operatively, however post-operatively, there was marking reduction of probing depth. The gingival bleeding index (GBI) improved and the amount of gingival crevicular fluid (GCF) reduced postoperatively. In pre-operative anaerobic culture, the proportions of Capnocytophaga species and Haemophilus actinomycetemcomitans were rich. Post-operatively, Capnocytophaga sp. did not find but H. actinomycetemcomitans was unchanged.
Case II: A 47-year-old male patient presented gingivitis around the abutment 13 months after abutment setting. We performed cleaning of the abutment surface with the flap procedure. Furthermore, a joint screw between the fixture and abutment adapted due to loosening post-operatively, PD unchanged, GBI improved and GCF slightly reduced. In pre-operative anaerobic culture, Bacteroides intermedius was rich. Post-operatively, B. intermedius did not find.
In conclusion, we advocate that maintenance care of osseointegrated implants is the most important factor in the procedure.
