A randomized, crossover trial to evaluate the effect of two mouthrinses on plaque regrowth in the absence of brushing.

This study assessed the effects on plaque in the absence of brushing of two twice-daily mouthrinses, one with an enzymatic-based formulation (Biotène) and one with an antimicrobial chlorhexidine-based formulation (Peridex), and sterile water. Plaque levels were assessed in 23 participants using a 4-day, nonbrushing plaque regrowth model after twice-daily rinsing with sterile water (negative control), the enzyme-based mouthrinse, or the chlorhexidine-based mouthrinse (positive control). Peridex showed significantly greater prevention of plaque regrowth when compared with water and the enzyme-based Biotène mouthrinse.

Crossover clinical investigation of a whitening chewing gum for inhibiting dental stain formation in conjunction with tooth brushing.

Objective: The purpose of this clinical investigation was to evaluate the effectiveness of a marketed whitening chewing gum compared to a no-gum control in preventing the formation of extrinsic stains on the teeth of stain-forming subjects when chewed over a 12-week period of regular unsupervised use in conjunction with daily tooth brushing.

Methods: This was a single-center, examiner-blind, randomized, 12-week crossover clinical trial. Stain-forming (after smoking or drinking coffee or tea) adults, starting with a stain-free baseline, either chewed the test gum (Orbit White) unsupervised four times per day, 15 minutes/chew, or used no gum along with daily brushing with a commercially available toothbrush and dentifrice for 12 weeks.

A comparative clinical study evaluating stain removal efficacy of a new sensitivity whitening dentifrice compared to commercially available whitening dentifrices.

Objective: To assess the extrinsic stain removal efficacy of a new sensitivity dentifrice containing sodium tripolyphosphate (STP) to marketed whitening toothpastes after six weeks of product use.

Methods: This was a single-center, double-blind, stratified, six-week clinical study comparing the reduction in stain area and intensity of Sensodyne Extra Whitening to Crest Maximum Strength Sensitivity Protection Whitening plus Scope and Colgate Tartar Control Plus Whitening Mint dentifrice, as measured by MacPherson's Modification of the Lobene Stain Index (MMLSI) in a forced stain model.

Results: Two-hundred and ninety-five subjects completed the study.

Laboratory investigation of Colgate 360 degrees toothbrush and Oral-B indicator toothbrush for the removal of dental stains.

The objective of this in vitro study was to evaluate the stain-removal efficacy of a newly designed manual toothbrush, the Colgate 360 degrees, relative to a commercially available toothbrush, the Oral-B Indicator. A modification of Stookey et al was used to evaluate the stain-removal effects of toothbrushes instead of dentifrice on bovine teeth. A V.