Application of electrolyzed acid water to sterilization of denture base part 1. Examination of sterilization effects on resin plate

Nagamatsu Y, Tajima K, Kakigawa H, Kozono Y. Department of Materials Science, Kyushu Dental College, Kokurakita, Kitakyushu, Japan.


Bactericidal activities of electrolyzed strong and weak acid waters for acrylic denture base resin were evaluated in order to discuss the applicability of these waters for sterilization of denture base. Only 1-minute immersion in the electrolyzed strong or weak acid water could completely eliminate the attached bacteria, Staphylococcus aureus 209P, on the resin plate. When the resin was relined with tissue conditioner, 5-minute immersion or 1- to 2-minute ultrasonic cleaning reduced the number of the bacteria from 10(5)/cm2 level to 10(1)/cm2 and no surviving bacteria could be detected after 10-minute treatment. These findings suggest that both the electrolyzed strong and weak acid waters are well applicable to the disinfectant for acrylic denture base showing excellent bactericidal activities in a significantly shorter treatment as compared with the conventional denture cleaning.

PMID: 11523978 [PubMed - indexed for MEDLINE] Biomed Res. 2009 Oct;30(5):263-9.

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