Adherence Of Oral Bacteria On Chitosan: Added Denture Base Materials In Vitro.
- Author:
Sung Hwan CHUNG
1
;
Mong Sook VANG
;
Ha Ok PARK
Author Information
1. Department of Prosthodontics, College of Dentistry, Chonnam National University. msvang@hanmail.net
- Publication Type:In Vitro ; Original Article
- Keywords:
Chitosan;
PMMA;
4-META;
Streptococcus mutans;
Lactobacillus casei
- MeSH:
Bacteria*;
Cell Count;
Chitosan*;
Denture Bases*;
Dentures*;
Lactobacillus casei;
Polymethyl Methacrylate;
Streptococcus mutans
- From:The Journal of Korean Academy of Prosthodontics
2002;40(5):525-535
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purposes of this study were to evaluate the adherence of bacteria on various denture base resin materials and effects of chitosan, added to denture base materials on bacterial adherence. PMMA denture base resin such as heat-cured Vertex-RS, self-cured Vertex-SC and 4-META denture base resin such as heat-cured Meta-Dent, self-cured Meta-Fast were used in this study. Samples were divided into two groups: the denture base resin with chitosan, without chitosan. Streptococcus mutans and Lactobacillus casei were used in this study. The surface of samples was observed by SEM. When chitosan was added to M17 and MRS broth, viable cell count of bacteria was reduced. Viable cell count of Streptococcus mutans on the samples decreased as follows: Meta-Dent, Vertex-SC, Meta-Fast, Vertex-RS. Viable cell count of Lactobacillus casei on the samples decreased as follows: Vertex-RS, Meta-Dent, Meta-Fast, Vertex-SC. The resin with chitosan showed lower adherence of bacteria than without chitosan. The images of SEM showed that the surface of the resin with chitosan was rougher than that of without chitosan. These results showed that the denture base resin materials with chitosan have rougher surface than without chitosan,but less bacteria adhered on them.
