[Application of fluoro-resins on the tissue surface of pontic].
The purpose of this study was to investigate the applicability of fluoro-composite resins for clinical usage. Polychlorotrifluoroethylene (PCTFE) resin was applied to the tissue surface of pontic for 7 days in the oral cavity, and the amount of plaque accumulation was measured. The plaque retaining capacity of PCTFE was compared with Au-Ag-Pd alloy and porcelain. In order to survey the endurance of PCTFE-resin, the surface of PCTFE-coating was observed under SEM. The results were as follows: 1. Plaque accumulation on the PCTFE-coating was less than that of metal, and was equivalent to or less than that of porcelain. 2. Pin-point like plaque formation similar to that found on porcelain surfaces were observed on the PCTFE-coating. 3. SEM observations of the PCTFE-coating revealed some traces made by the toothbrush. As a result, PCTFE-coating was found to be useful for decreasing the amount of plaque formation on those pontic surfaces where mechanical cleaning can not be maintained.
Furukawa
K
K
Department of Fixed Prosthodontics, School of Dentistry, Iwate Medical University.
Waga
H
H
Ishikawa
S
S
Mizuno
T
T
Seino
K
K
Ishibashi
K
K
Ichimaru
T
T
D003188:Composite Resins; D003722:Dental Alloys; D003773:Dental Plaque / Q000209:etiology / Q000517:prevention & control*; D003776:Dental Porcelain; D003830:Denture, Partial, Fixed / Q000009:adverse effects; D006801:Humans; D011095:Polyethylenes; D013499:Surface Properties
D003188:Composite Resins; D003722:Dental Alloys; D011095:Polyethylenes; D003776:Dental Porcelain; C039184:polychlorotrifluoroethylene