搜索结果: 1-15 共查到“医学 Orthodontic brackets”相关记录62条 . 查询时间(0.125 秒)
Hypersensitivity to conventional and to nickel-free orthodontic brackets
Hypersensitivity Nickel Stainless steel Orthodontics corrective
2009/10/19
The aim of this study was to evaluate the allergenic potential of orthodontic brackets, comparing the cutaneous sensitivity provoked by metals present in conventional metallic brackets to that provoke...
Streptococcus mutans counts in plaque adjacent to orthodontic brackets bonded with resin-modified glass ionomer cement or resin-based composite
Streptococcus mutans Orthodontic appliances Glass ionomer cements Tin fluorides
2009/10/16
This study investigated the number of Streptococcus mutans CFU (colony forming units) in the saliva and plaque adjacent to orthodontic brackets bonded with a glass ionomer cement - GIC (Fuji Ortho) or...
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...
Modification of 4-META/MMA-TBB Resin for Safe Debonding of Orthodontic Brackets — Influence of the Addition of Degradable Additives or Fluoride Compound
4-META/ MMA-TBB resin Debonding Enamel
2009/9/14
The purpose of this study was to evaluate the performance of modified 4-META/ MMA-TBB resin cements (Superbond C&B) in terms of debonding orthodontic brackets easily and safely from enamel without the...
Effect of Acetic NaF Solution on the Corrosion Behavior of Stainless Steel Orthodontic Brackets
Acetic NaF solution Color change Stainless steel brackets
2009/9/14
This study assessed the effect of acetic NaF solutions on stainless steel orthodontic brackets. Acetic acid was added to a 0.1% NaF solution to make two solutions, one with pH 3.5 and the other with p...
Corrosion-related Changes on Ti-based Orthodontic Brackets in Acetic NaF Solutions: Surface Morphology, Microhardness, and Element Release
Corrosion Bracket NaF solution
2009/9/11
This study sought to investigate the effects of acetic NaF solutions on titanium and Ti alloy brackets. To this end, two different brackets were immersed in various NaF-containing solutions for three ...
Study on fabrication of orthodontic brackets with the photocatalytic function of titanium dioxide
Photocatalysis Titanium dioxide Bracket
2009/9/11
We sought to investigate whether the photocatalytic function of rutile-type titanium dioxide is applicable for orthodontic brackets. To this end, TiO2 specimens were compressed and sintered. Then, eac...
Effects of application time and agitation for bonding orthodontic brackets with two self-etching primer systems
Self-etching primer Shear bond strength Agitation Application time
2009/9/11
The purpose of this study was to evaluate the shear bond strength, adhesive remnant index (ARI) and etching effect of two self-etching systems (Transbond Plus, Beauty Ortho Bond) at different applicat...
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...
Frictional Resistance in Self-Ligating Orthodontic Brackets and Conventionally Ligated Brackets
Friction Self-ligation Brackets Systematic review In vitro
2010/3/5
Objective: To compare the amount of expressed frictional resistance between orthodontic self-ligating brackets and conventionally ligated brackets in vitro as reported in the literature.
Methods: S...
A Comparative Study between Bond Strength of Rebonded and Recycled Orthodontic Brackets
bracket chemical recycling shear bond strength
2009/4/2
Introduction: A large number of orthodontists prefer to rebond the failed bonded brackets or use recycled brackets in some instances. The aim of this study was to compare the shear bond strength of re...
Chromium Release from New Stainless Steel, Recycled and Nickel-free Orthodontic Brackets
Chromium release Reconditioned brackets Nickel-free brackets Artificial saliva Batch procedure
2010/3/5
Objective: To test the hypothesis that there is no difference in the amounts of chromium released from new stainless steel brackets, recycled stainless steel brackets, and nickel-free (Ni-free) orthod...
Effects of Different Chlorhexidine Formulations on Shear Bond Strengths of Orthodontic Brackets
Shear bond strength Orthodontic bracket Chlorhexidine gel ARI score
2010/3/5
Objective: To test the hypothesis that the application of different chlorhexidine formulations to the etched enamel will not affect shear bond strength (SBS).
Materials and Methods: Forty-four fres...
The Effect of Acidic Pretreatment Solutions on the Direct Bonding of Orthodontic Brackets to Enamel
Acidic Pretreatment Solutions Direct Bonding Orthodontic Brackets
2009/3/12
The Effect of Acidic Pretreatment Solutions on the Direct Bonding of Orthodontic Brackets to Enamel.
Microleakage under Orthodontic Brackets Using High-Intensity Curing Lights
Microleakage Light source Halogen LED PAC
2010/3/5
Objective: To compare the microleakage of the enamel-adhesive-bracket complex at the occlusal and gingival margins of brackets bonded with high-intensity light curing lights and conventional halogen l...