Abstract
The purpose of this investigation was to clarify physicochemically plaque formation on ceramic implant materials. The effect of the wettability of the ceramic implant surface on plaque attachment and detachment, was examined in vitro.
Bacterial strains used were Streptococcus mutans 176, 175, K-1, 6715 and PK-1. The following test samples were used through put the study: single crystal alumina ceramic, polycrystalline alumina ceramic, stainless steel, TEFLON ® and glass. The experimental items consisted of cell, glucan and in vitro plaque attachment, and glucan and in vitro plaque detachment with sonication.
Results:
1. The contact angle of single crystal alumina ceramics was 29.8.. and of the polycrystalline type, 23.6... These are comparatively lower contact angles similar to that of glass.
2. No remarkable differences in attachment test results were observed among the materials.
3. Detachment tests with sonication with Alumina ceramic implants showed quick removability of glucan and in vitro plaque.
