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Peroxide bleaching agent effects on enamel surface microhardness, roughness and morphology
Tooth bleaching Peroxides Dental enamel
2009/10/20
The aim of this study was to evaluate the surface roughness, microhardness and morphology of human enamel exposed to six bleaching agents (at baseline and post-treatment). Human dental enamel samples ...
Shear bond strength after dentin bleaching with 10% carbamide peroxide agents
Tooth bleaching Dentin Saliva artificial
2009/10/20
This in vitro study evaluated the shear bond strength (SBS) of dentin treated with two 10% carbamide peroxide bleaching agents 15 days after bleaching and storage in artificial saliva. Dentin fragment...
Influence of post-bleaching time intervals on dentin bond strength
Tooth bleaching Dentin-bonding agents
2009/10/20
It has been reported that bond strength of resin to tooth structure can be reduced when the bonding procedure is carried out immediately after the bleaching treatment. This study evaluated the effect ...
Influence of carbamide peroxide-based bleaching agents on the bond strength of resin-enamel/dentin interfaces
Peroxides Dentin-bonding agents Dentin Enamel Tensile strength
2009/10/19
In this bond strength study, a bleaching agent containing 10% carbamide peroxide was applied over composite-teeth bonded interfaces of two adhesive systems applied to enamel and dentin. Sixteen human ...
Hardness of a bleaching-shade resin composite polymerized with different light-curing sources
Composite resins Dental materials Hardness
2009/10/19
The microhardness of a bleaching-shade resin composite polymerized with different light-curing units was evaluated. Composite samples (3M ESPE Filtek Supreme) were applied to brass rings (2 mm in thic...
Study of DNA damage induced by dental bleaching agents in vitro
CHO cells Comet assay Tooth bleaching Mutagenicity tests
2009/10/19
Dental bleaching is a simple and conservative procedure for aesthetic restoration of vital and non-vital discolored teeth. Nevertheless, a number of studies have demonstrated the risk of tissue damage...
Effect of thickener agents on dental enamel microhardness submitted to at-home bleaching
Dental enamel Hardness tests Tooth bleaching Thickeners [adverse effects]
2009/10/19
Dental bleaching occurs due to an oxidation reaction between the bleaching agents and the macromolecules of pigments in the teeth. This reaction is unspecific and the peroxides can also affect the den...
The purpose of this study was to determine the elastic modulus of enamel during bleaching procedure with the use of an ultrasonic device. Enamel sections were obtained from freshly extracted bovine in...
Effect of Bleaching on Color Change and Refractive Index of Dental Composite Resins
Bleaching Composites Color
2009/9/11
This study investigated the effects of three bleaching agents (Whiteness Perfect, Whiteness Super, and Whiteness HP) on the color change and refractive index of three dental composites (Admira, Durafi...
Bond Strength of Metallic Brackets After Dental Bleaching
Dental bleaching Bond strength Metallic bracket Composite resin
2010/3/5
Objective: To test the hypothesis that there is no difference between the action of at-home and in-office vital bleaching on the shear bond strength of metallic brackets bonded with composite resin 24...
Bleaching and Desensitizer Application Effects on Shear Bond Strengths of Orthodontic Brackets
Bleaching Desensitizer Hydrogen peroxide Potassium nitrate Shear bond strength Carbamide peroxide
2008/11/5
Objective: To evaluate the effects of bleaching and desensitizer application on shear bond strengths of orthodontic brackets.Materials and Methods: Forty-eight extracted human premolar teeth were rand...
Effect of Time Interval between Bleaching and Bonding on Tag Formation
Enamel Dental bleaching Time intervals Tags formation
2010/1/21
The objective of this study was to assess penetration of adhesive material in enamel bleached with 35% hydrogen peroxide using optical polarized light microscopy. Extracted human teeth were randomly a...
Effect of Time Interval between Bleaching and Bonding on Tag Formation
Enamel Dental bleaching Time intervals Tags formation
2010/12/1
The objective of this study was to assess penetration of adhesive material in enamel bleached with 35% hydrogen peroxide using optical polarized light microscopy. Extracted human teeth were randomly a...