A Comparison of Oral Hygiene Products and Professional Care: A six-week randomized clinical trial.

To investigate the anti-gingivitis efficacy of a novel oral hygiene routine consisting of a two-step stannous fluoride dentifrice and hydrogen peroxide whitening gel system, an interactive oscillating-rotating electric toothbrush, and expanded polytetrafluoroethylene floss. A total of 52 participants (n=52;mean age 35.8±11.

Subgingival uptake and retention of stannous fluoride from dentifrice: Gingival crevicular fluid concentrations in sulci post-brushing.

Purpose: To examine the delivery of stannous fluoride to subgingival sulci following toothpaste use in a clinical population.

Methods: This was a controlled, single-site study. 23 subjects with at least 20 dental pockets, 2-4 mm with bleeding, who had not used a stannous fluoride dentifrice in the last 3 months were enrolled.

Comparative bioavailability and antimicrobial activity of cetylpyridinium chloride mouthrinses in vitro and in vivo.

Purpose: Commercialized cetylpyridinium chloride (CPC) mouthrinses were compared for antimicrobial substantivity/bioavailability in an in vitro disk retention assay (DRA) and clinical antimicrobial activity in vivo in the plaque glycolysis and regrowth method (PGRM).

Methods: Formulations compared in this testing included commercially available CPC mouthrinses: Crest Pro Health (CPH), (containing 700 ppm formulated CPC); Colgate Total Puerto Rico (CT450), (containing 450 ppm formulated CPC); Colgate Total US (CT750), (containing 750 ppm formulated CPC); and Scope Mouthwash (SCP), (containing 450 ppm formulated CPC). A water control (CTR) was included in one of the PGRM clinical trials.

The effects of high concentration tooth whitening bleaches on microleakage of Class V composite restorations.

Objective: To explore the effects of high-concentration hydrogen peroxide bleaching agents on the microleakage of composite restorations.

Methods: In 60 extracted human molars, Class V restorations were prepared with Scotchbond 1/Filtek Z250 composite. Teeth were randomly divided into four groups: (1) no bleaching; (2) bleaching with 14% hydrogen peroxide gel from Crest Whitestrips; (3) bleaching with 20% carbamide peroxide gel from Opalescence PF 20; and (4) bleaching with 38% hydrogen peroxide gel Opalescence Xtra Boost.

Physical, morphological, and micro-Raman chemical studies on bleaching strip effects on enamel, coronal dentin, and root dentin.

Objective: This study examined the effects of elevated-concentration hydrogen peroxide tooth whitening strips on the surface and subsurface integrity of enamel, coronal dentin, and root dentin.

Methodology: Sound human teeth were ground and polished to prepare a uniform substrate for bleaching. A cycling regimen included exposures to saliva, bleaching treatments, and fluoridated toothpaste.

Effects of elevated hydrogen peroxide 'strip' bleaching on surface and subsurface enamel including subsurface histomorphology, micro-chemical composition and fluorescence changes.

Objectives: This study examined the effects of elevated concentration hydrogen peroxide tooth whitening treatments on tooth surface and subsurface integrity.

Methods: Sound human molars were ground and polished to prepare an uniform substrate for bleaching treatments. A cycling treatment included alternating ex vivo human salivary exposures with bleaching treatments under conditions of controlled temperature and durations of treatment.