Tissue pH of developing periapical lesions in dogs

Abstract

pH readings were taken at various time intervals of the periapical tissues of beagles' teeth with open apices. The teeth had been infected with a virulent strain of Streptococcus faecalis. After inoculation, some teeth were treated with an acid paste, others with a basic paste, and others infected only. Regardless of treatment, all periapical tissues gave similar pH readings, initially falling to pH 6.5, then rising to pH 7.1 to 7.2 6 months postoperatively. pH readings were taken at various time intervals of the periapical tissues of beagles' teeth with open apices. The teeth had been infected with a virulent strain of Streptococcus faecalis. After inoculation, some teeth were treated with an acid paste, others with a basic paste, and others infected only. Regardless of treatment, all periapical tissues gave similar pH readings, initially falling to pH 6.5, then rising to pH 7.1 to 7.2 6 months postoperatively.