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Volume 16 , Issue 2
March/April 2003

Pages 141144

Cytotoxicity of Antimicrobial Tissue Conditioners Containing Silver-Zeolite

Yasuhiko Abe, DDS, PhD, Morikatsu Ueshige, DDS, PhD, Maho Takeuchi, DDS, Mie Ishii, DDS, PhD, Yasumasa Akagawa, DDS, PhD

PMID: 12737244

Purpose: The purpose of this study was to determine the effects of incorporating antimicrobial silver-zeolite on the in vitro cytotoxicities of five tissue conditioners against the living dermal model, which consisted of normal human dermal fibroblasts in a collagen lattice. Materials and Methods: Samples of each tissue conditioner containing silver-zeolite (2 wt% and 5 wt%) were prepared; samples without silver-zeolite were used as a control. Cytotoxicity of each sample against the living dermal model was evaluated by cell viability with MTT assay. Results: Cell viabilities for Visco-Gel, GC Soft-Liner, FITT, and SR-Ivoseal decreased with increasing silver-zeolite content. Cell viability for Shofu Tissue Conditioner showed no significant difference with degree of silver-zeolite incorporation and had higher values than other tissue conditioners. Conclusion: Individual compounds eluted from tissue conditioners and silver ions released from silver-zeolite might cause such cytotoxicity. The results suggest that Shofu Tissue Conditioner is a possible candidate for a novel antimicrobial tissue conditioner containing silver-zeolite because it showed the highest cell viability and the smallest influence of incorporating silver-zeolite. Int J Prosthodont 2003;16:141144.

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