Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

A STUDY ON THE EFFECT OF CONCENTRATION AND TEMPERATURE ON THE BACTERICIDAL ACTlON OF SODIUM HYPOCHLORITE

차아염소산(次亞塩素酸)나트륨의 농도(濃度)와 온도변화(溫度變化)에 따른 살균효과(殺菌效果)

  • Kim, Jae-Young (Dept. of Operative Dentistry, Graduate School Seoul National University)
  • 김재영 (서울대학교 대학원 치의학과 보존학)
  • Published : 1981.12.31
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Abstract

The purpose of this study is to determine the effect of concentration and temperature on the bactericidal action of sodium hypochlorite by means of comparing the killing time of several kinds of microorganism on each different concentration and temperature of sodium hypochlorite. The results were as follows: 1. As the concentration of sodium hypochlorite was increased, the bactericidal action of sodium hypochlorite was increased in all specimens. 2. The bactericidal action of sodium hypochlorite at $37^{\circ}C$ was more potent than that of sodium hypochlorite at $21^{\circ}C$. 3. Among the 3 experimental microorganisms, Pseudomonas aeruginosa was the most resistant to sodium hypochlorite, then comes staphylococcus aureus, and the least resistant microorganism was Streptococcus mutans.

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