Abstract
The following research was made with the hope that implants will function successfully as long as possible. The first step was to examine the comparison of bacteria flora between periodontal gingival pockets and implant gingival sulcus, and to research the relation between implant materials and bacteria numbers in implant sulcus.
52 implant cases and 35 pockets were used for this study. Bacteria flora was collected with a sterilized paper point at a depth ranging up to 14 mm.
The results are as follows:
1. Implant and periodontal disease gingival sulcus have very similar prognosis for long-term periods.
2. Increase of gram-negative rods and spirochaeta cause inferior prognosis.
3. Bacteria adheres easily to the implant material surface.
