搜索结果: 1-15 共查到“医学 Bracket”相关记录38条 . 查询时间(0.078 秒)
Microbial Adhesion on Different Bracket Types in vitro
Orthodontic bracket Orthodontic appliance design Microbiology, Dental plaque
2010/3/5
Objective: To test the hypothesis that there are differences in total bacterial counts and capacity for biofilm formation between seven different bracket types.
Material and Methods: By means of an...
Shear Bond Strength and FEM of a Resin-modified Glass Ionomer Cement—Effects of Tooth Enamel Shape and Orthodontic Bracket Base Configuration
Resin-modified glass ionomer cement Bond strength FEM
2009/9/14
The objective of this study was to evaluate the influences of enamel shape and bracket base configuration on shear bond strength from a biomechanical point of view. To this end, shear bond test and st...
Influence of environmental conditions on orthodontic bracket bonding of self-etching systems
Bracket bonding Oral condition Bond strength
2009/9/11
The influence of temperature and relative humidity (RH) on the bond strength of orthodontic adhesives was investigated. Two self-etching/composite type, one acid-etching/composite type, and one acid-e...
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...
Changes in Incisor Third-Order Inclination Resulting from Vertical Variation in Lingual Bracket Placement
Lingual orthodontics Third-order inclination Lingual incisor morphology Lingual bracket placement
2010/3/5
Objective: To test the null hypothesis that third-order measurements are not correlated to lingual incisor features seen on radiographs.
Material and Methods: The lateral headfilms of 38 untreated,...
Use of Palatal Miniscrew Anchorage and Lingual Multi-Bracket Appliances to Enhance Efficiency of Molar Scissors-Bite Correction
Scissors-bite Miniscrew Lingual multi-bracket appliances Bite-plane
2010/3/5
This article reports the successful treatment method of scissors-bite correction using miniscrew anchorage and a lingual multi-bracket appliance. A female patient, 17 years and 4 months old, had a chi...
Third-Order Torque and Self-Ligating Orthodontic Bracket–Type Effects on Sliding Friction
Self-ligation Torque Friction
2010/3/5
Objective: To examine the influence of third-order torque on kinetic friction in sliding mechanics involving active and passive self-ligating brackets.
Materials and Methods: Wire-slot frictional f...
Enhanced Degree of Monomer Conversion of Orthodontic Adhesives Using a Glass-Fiber Layer under the Bracket
Department of Oral Development and Orthodontics,Institute of Dentistry,University of Turku,Turku,Finland
2010/3/5
Objective: To test the hypothesis that there is no difference in the degree of conversion (DC%) of orthodontic composites during the light-curing process with or without the use of a glass-fiber reinf...
Forces Produced by Different Nonconventional Bracket or Ligature Systems during Alignment of Apically Displaced Teeth
Friction Orthodontic materials Self-ligating brackets
2010/3/5
Objective: To analyze the forces released by four types of passive stainless steel self-ligating brackets (SLBs), and by two nonconventional elastomeric ligature-bracket systems when compared with con...
Bracket angulation as applied to the edgewise appliance
Bracket angulation edgewise appliance
2009/3/16
Bracket angulation as applied to the edgewise appliance.
Principles For Use Of The Edgewise Bracket With Rotation Arms
Edgewise Bracket Rotation Arms
2009/3/14
Principles For Use Of The Edgewise Bracket With Rotation Arms.
Enamel surfaces after orthodontic bracket debonding
Enamel surfaces Scarred enamel Post-debonding polishing
2009/1/12
The enamel surfaces of extracted teeth were studied clinically and with a scanning electron microscope following debonding of orthodontic attachments and subsequent polishing. Excess orthodontic r...
Frictional resistances using Teflon-coated ligatures with various bracket-archwire combinations
Friction Teflon Elastomers Ceramic Nitinol
2009/1/9
Static frictional resistances were compared between Teflon-coated stainless steel and clear elastomeric ligatures used with various combinations of brackets and archwires. Stainless steel metal, p...
Evaluation of the shear bond strength of different ceramic bracket base designs
Brackets Base Bonding Shear strength
2009/1/8
The purpose of this study was to compare the Ceramaflex bracket with a traditional ceramic orthodontic bracket with regard to shear bond strength and bond failure location. Forty newly extracted h...
Comparison of bracket debonding force between two conventional resin adhesives and a resin-reinforced glass ionomer cement：An in vitro and in vivo study
Bond strength Composite resins Glass ionomer cement
2009/1/7
The purpose of this study was to compare the debonding force of orthodontic brackets bonded with two conventional resin adhesives (Resilience L3 and Light Bond) and a resin-reinforced glass ionome...