The aim of this study was to evaluate the effect using dentifrices containing tricalcium phosphate (β-TCP) on microhardness, enamel color, and topography before bleaching treatment with 35% hydrogen peroxide (HP). Fifty bovine incisor enamel/dentin blocks (4 × 4 2 mm) were randomized into five groups (n=10): (C) negative control (no treatment), positive (35% HP), Colgate Total 12 then HP (CT + ...

Recently, the use of antioxidants before bonding bleached enamel was considered effective for reversing reduction in bond strength. This article aimed to assess influence different sodium ascorbate (SA) presentations (liquid, gel, and semi-gel) on composite resin–enamel strength after a bleaching protocol. Sound human anterior teeth were collected, cleaned, prepared test, randomly allocated int...

The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) were randomly distributed in 6 groups (n = 15), according to the technique used to bleach them (in-of...

INTRODUCTION Our objective was to determine the effects of intracoronal bleaching on the shear bond strength and failure side location of metallic brackets at 2 times (bleaching immediately before bonding and 30 days before bonding). METHODS Sixty freshly extracted mandibular incisors were randomly divided into 3 groups; each group contained 20 teeth. After finishing canal preparation and roo...

Context: Dental Bleaching or tooth whitening represents a conservative cosmetic approach even for children and adolescents, whom treatment may be readily accomplished without permanent alteration to the enamel surface thus limiting need lifelong maintenance. Aims: The aim of this study was compare efficacy banana peel orange as teeth agents in deciduous dentition. Methods Material: Twenty extra...