搜索结果: 1-15 共查到“口腔正畸学 STRENGTH”相关记录94条 . 查询时间(0.313 秒)
Effects of cleaning agents on bond strength to dentin
Dental prophylaxis Composite resins Dentin-bonding agents Dentin
2009/10/19
The cleaning of cavity walls aims to improve adhesive restorative procedures and longevity of restorations. This study has compared the effect of three cleaning agents - sodium bicarbonate jet (Profi ...
Influence of composite restorative materials and light-curing units on diametrical tensile strength
Light emitting diode Composite resins Diametrical tensile strength Mechanical properties
2009/10/19
The aim of this study was to evaluate the diametrical tensile strength (DTS) of three light-curing photo-activated composites with two different light curing units (LCU). Three types of dental restora...
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 ...
Diametral tensile strength of composite resins submitted to different activation techniques
Composite resins Physical properties Tensile strength
2009/10/19
The aim of this study was to evaluate the diametral tensile strength (DTS) of composite resins submitted to different curing techniques. Four composite resins were tested in this study: Targis (Ivocla...
Effect of dentinal surface preparation on bond strength of self-etching adhesive systems
Dentin-bonding agents Dentin Tensile strength
2009/10/19
The aim of this study was to evaluate the effects of dentin surface treatments on the tensile bond strength (TBS) of the self-etching primer Clearfil SE Bond (CSE) and the one-step self-etching One-Up...
Fractographic analysis,accuracy of fit and impact strength of acrylic resin
Dental materials Acrylic resins Physical properties
2009/10/16
This study evaluated accuracy of fit, impact strength, types and morphology of fractures of a microwave acrylic resin polymerized with a cycle alternative to that recommended by the manufacturer. Onda...
Influence of intrapulpal pressure simulation on the bond strength of adhesive systems to dentin
Adhesives Dentin permeability Dental bonding Smear layer
2009/10/16
The purpose of this study was to evaluate the influence of intrapulpal pressure simulation on the bonding effectiveness of etch & rinse and self-etch adhesives to dentin. Eighty sound human molars wer...
Flexural and diametral tensile strength of composite resins
Composite resins Tensile strength Physical properties
2009/10/16
This study evaluated the flexural strength (sf) and the diametral tensile strength (st) of light-cured composite resins, testing the hypothesis that there is a positive relation between these properti...
Effects of CPP-ACP Paste on the Shear Bond Strength of Orthodontic Brackets
Shear bond strength Casein phosphopeptide–amorphous calcium phosphate Enamel Orthodontic brackets
2010/3/5
Objective: To evaluate the effect of casein phosphopeptide–amorphous calcium phosphate (CPP-ACP) paste on shear bond strength and debonding failure modes of orthodontic brackets.
Materials and Meth...
Shear Bond Strength of Orthodontic Brackets Bonded to Provisional Crown Materials Utilizing Two Different Adhesives
Provisional crown materials Shear bond strength Orthodontic brackets Adhesives
2010/3/5
Objective: To test the hypothesis that there is no difference in the shear bond strength of brackets bonded to provisional crown materials (PCMs) using two adhesive agents.
Materials and Methods: F...
Tooth Whitening Effects on Bracket Bond Strength In Vivo
Bleaching Bond strength Bracket survival rate
2010/3/5
Objective: To test the hypothesis that there is no difference between the bracket survival rate of brackets bonded to bleached and unbleached teeth.
Materials and Methods: Thirty-eight patients who...
Shear Bond Strength of Ceramic Brackets with Different Base Designs to Feldspathic Porcelains
Base design Ceramic bracket Debonding Porcelain Shear bond strength
2010/3/5
Objective: To test the hypothesis that the there is no difference between the shear bond strengths of different base designs of ceramic brackets bonded to glazed feldspathic porcelains.
Materials a...
Shear Bond Strength of Brackets Rebonded with a Fluoride-Releasing and -Recharging Adhesive System
Rebonding Shear bond strength Fluoride-releasing Fluoride-recharging
2010/3/5
Objective: To ascertain the effects of repeated bonding on the shear bond strength of orthodontic brackets bonded with a fluoride-releasing and -recharging adhesive system with a self-etching primer i...
Strength, Solubility And Disintegration Of Zinc Phosphate Cement With Clinically Determined Powder-Liquid Ratio
Strength Solubility Disintegration Zinc Phosphate Cement
2009/3/12
Strength, Solubility And Disintegration Of Zinc Phosphate Cement With Clinically Determined Powder-Liquid Ratio.
Morphology of Polycrystalline Alumina Brackets and its Relationship to Fracture Toughness and Strength
BRACKETS CERAMICS FRACTURE MORPHOLOGY FRACTURE TOUGHNESS TENSILE STRENGTH
2009/2/26
Inherent defects seen in the morphology of polycrystalline ceramic brackets severely limit their fracture strength. Only by improving the surface characteristics can those mechanical properties whic...