Lactobacillus salivarius WB21--containing tablets for the treatment of oral malodor: a double-blind, randomized, placebo-controlled crossover trial.

Objective: This study evaluated the effect of probiotic intervention using lactobacilli on oral malodor.

Study Design: We conducted a 14-day, double-blind, placebo-controlled, randomized crossover trial of tablets containing Lactobacillus salivarius WB21 (2.0 × 10(9) colony-forming units per day) or placebo taken orally by patients with oral malodor.

Effect of mouth cleaning with hinokitiol-containing gel on oral malodor: a randomized, open-label pilot study.

Aim: The aim of the study was to evaluate the effect of mouth cleaning with hinokitiol-containing gel on oral malodor.

Methods: An open-label, randomized, controlled trial was conducted to assess oral malodor and clinical parameters related to oral malodor before and after mouth cleaning with hinokitiol-containing gel (n = 9) or with gel not including hinokitiol (n = 9). Mouth cleaning included the teeth, gingiva, and tongue and was carried out 3 times per day for 4 weeks.

Effect of S-PRG Eluate on Biofilm Formation and Enzyme Activity of Oral Bacteria.

Recently, the antibacterial activity of a composite resin containing prereacted glass ionomer (S-PRG) filler was revealed. We examined the effect of an S-PRG eluate on various biologic activities of Streptococcus mutans and Porphyromonas gingivalis. Adherence ability of S.

Application of a chairside anaerobic culture test for endodontic treatment.

Periapical lesions are caused by bacterial infections. The fundamental objective of endodontic treatment is to eliminate bacteria present in the root canal system because they play an important role in the development and maintenance of periapical lesions. Therefore, confirming the absence of bacteria before filling root canals is important.