Yasmin do Socorro Batista de Lima Gomes

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OBJECTIVE This in vitro study analyzed the effects of a bleaching treatment containing 35% hydrogen peroxide (HP) with or without calcium on bovine enamel, using the Knoop hardness number (KHN), tristimulus colorimetry (TC), and scanning electron microscopy. MATERIALS AND METHODS Forty-five specimens were randomly divided into groups (n = 5), which(More)
AIM The aim of this in vitro study was to evaluate the effects of different sodium fuoride (NaF) concentrations and pH values on the Knoop hardness (KHN), surface roughness (SR), and morphology of bovine incisors bleached with 35% hydrogen peroxide (HP). MATERIALS AND METHODS Sixty-five bovine incisors were fragmented (5 mm(2) × 2 mm) and distributed in 5(More)
The effect of bleaching treatments containing added calcium and combined with neutral or acidic fluoride gels on tooth enamel was investigated in vitro through Knoop microhardness (KHN) and surface roughness (SR) measurements. A total of 60 bovine incisors were tested, including 30 for SR measurements and 30 for KHN measurements. The specimens were divided(More)
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