Figure 1 Outline of the clinical trial Figure 2 Method of plaque

Figure 1 Outline of the clinical trial Figure 2 Method of plaque collection Figure 3 Plaque samples were collected using a microbrush (Microbrush International Ltd. Clogherane, Dungarvan Co., Waterford, Ireland) from the tooth surface (a) and sellectchem tongue surface (b) and then spread on the site strip. The strips were attached to each other … Prior to the trials, patients were informed of the design and limits of the study and instructed accordingly; these instructions included the type, amount, and usage frequency of the mouth rinse. They were also told not to perform any means of mechanical cleaning or to consume any chewing gum or similar products. This was a double-blind study, and the direction and distribution of experimental materials was performed by a secondary clinician.

The tests were conducted based on a 4-day plaque accumulation period.[18] The first group of patients constituting the positive control group were directed to use 20 mL of essential oil-containing Listerine? mouth rinse twice a day for 30 s. Listerine? mouth rinse contains eucaliptol (0.092%), menthol (0.042%), methyl salicylate (0.060%), and thymol (0.064%) as active ingredients. Inactive ingredients include, water, alcohol (26.9%), benzoic acid, poloksamer 407, sodium benzoate, and caramel. The second group was directed to use 10 mL of 0.1% Ondrohexidine? mouth rinse twice a day for 30 s. The active ingredients of this alcohol-free mouth rinse are CHX digluconate (0.1%), potassium chloride (250 ppm), PEG-40 castor oil with hydrogen, and water with sorbitol and xylitol as flavoring.

The third group was directed to use 30 mL of essential oil-containing Mouthwash Concentrate? 3 times a day for 30 s. The active ingredients of this alcohol-free mouth rinse are essential oil, water, menthol, thymol, eugenol, benzyl benzoate, and potassium hydroxide, with thyme and sage for flavor. The final group was designated as the negative control group and was directed to use 30 mL of 1% hydroalcohol solution 3 times a day for 30 s. The last rinse was performed in the evening of day 4. At the end of the test period, saliva, and plaque samples were collected in an identical fashion to the initial samples on the morning of the 5th day. Both sets of samples were analyzed for comparison. A total of 140 samples were tagged and kept in an incubator at 37��C for 96 h.

According to the strip kit manufacturer, the incubation time should be 48 h; however, to avoid the lack of expression of S. mutans colonies, the manufacturer also advised to wait 96 h and re-evaluate the colony counts. Following incubation, S. mutans colony numbers were evaluated on a population density scale from 0 to 3 using the plaque and saliva templates included in Dacomitinib a Dentocult? kit. The number of colony-forming units (CFU/mL) with characteristic morphology was screened and scored between 0 and 3. A score of 0 corresponded to zero CFU/mL (S.

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