Reference

In vitro study on the cytotoxic and antimicrobial effects of some root canal irrigating solutions

In vitro study on the cytotoxic and antimicrobial effects of some root canal irrigating solutions. Hayashi, Hiroyuki (Dep. Endod., Osaka Dent. Univ., Osaka, Japan). Shika Igaku, 39(2), 175-209 (Japanese) 1976. CODEN: SIGAAE. DOCUMENT TYPE: Journal CA Section: 1 (Pharmacodynamics) Section cross-reference(s): 3 The in vitro cytotoxic and antimicrobial effects of the endodontic irrigating solns.Some commonly used reagents like 62201-26-7 and 62201-25-6 are used in this experiment., phenol sulfonic acid [1333-39-7] (70%), NaClO [7681-52-9] (10%), EDTA-urea-peroxide mixt. [62201-25-6], EDTA-C (EDTA-cetyltrimethyl-ammonium bromide mixt.) [62201-26-7] and Chloramine T [127-65-1], and the neutralizing irrigating solns. NaHCO3 [144-55-8] (satd.), H2O2 [7722-84-1] (3%), and NaClO (2.5%). Of the agents, phenol sulfonic acid had the greatest cytotoxicity and had more effective antimicrobial activity than camphorated p-chlorophenol [62201-27-8]. NaClO (10%), EDTA urea-peroxide mixt., and H2O2 showed good cytotoxicity. The EDTA urea-peroxide mixt., EDTA-C, and H2O2 had good antimicrobial activities. Chloramine T, NaHCO3, and 2.5% NaClO showed weak cytotoxic and antimicrobial activities. When phenol sulfonic acid was neutralized with NaHCO3 or 10% NaClO with 3% H2O2, the cytotoxicity decreased. However, when EDTA ures-peroxide was neutralized with 2.5% NaClO, the cytotoxicity was greater than that of the former alone. Thus, the neutralizing procedure is important in endodontic procedures. .

Testing the effect of some disinfectants and the effect of temperature on the infectiousness of Nosema bombycis

Testing the effect of some disinfectants and the effect of temperature on the infectiousness of Nosema bombycis. Manchev, M. (Sericult. Exp. Stn., Vratsa, Bulg.). Zhivotnovud. Nauki, 13(6), 93-7 (Bulgarian) 1976. CODEN: ZHVNAS. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) Of 6 disinfectants tested against N. bombycis spores, 33% antiformin [7681-52-9], 2% NaOH, and 2% activated chloramin [55-86-7] were the most effective, killing the spores within 15 min. Water at 40 and 70.degree. killed the spores within 20 and 15 min, resp., whereas a 98.degree. 1310-73-2 and 55-86-7 are just another two chemicals used in this study. steam jet killed the spores in 5 min. .