搜索结果: 1-10 共查到“医学 Friction”相关记录10条 . 查询时间(0.097 秒)
Comparison of canine retraction using slide friction less ligature modules with conventional modules - an in vivo study
slide friction ligature modules conventional modules
2010/11/3
Comparison of canine retraction using slide friction less ligature modules with conventional modules - an in vivo study.
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...
Friction between Archwires of Different Sizes, Cross-Section and Alloy and Brackets Ligated with Low-Friction or Conventional Ligatures
Frictional resistance Conventional brackets Archwires Low-friction ligatures
2010/3/5
Objective: To test the null hypothesis that no statistically significant difference in frictional resistance is noted when round or rectangular archwires are used in conjunction with low-friction liga...
Influence of Friction at Articular Surfaces of the Temporomandibular Joint on Stresses in the Articular Disk: A Theoretical Approach with the Finite Element Method
TMJ stress Finite element method Jaw opening Joint friction
2008/12/19
The present study was designed to assess stress and displacement of the temporomandibular joint (TMJ) disk during jaw opening with different frictional coefficients (μ) from 0.0001 to 0.5 at the TMJ...
Frictional Forces Between Lingual Brackets and Archwires Measured by a Friction Tester
Friction Pin on disk type friction tester Lingual bracket Critical contact angle
2008/12/17
Frictional resistance tends to rapidly increase as the angle between a bracket and an archwire increases beyond a critical angle. The purpose of this study was to determine a new measuring method ...
Friction of Conventional and Self-Ligating Brackets Using a 10 Bracket Model
Frictional resistance Conventional brackets Self-ligating brackets Archwires
2008/12/4
The friction generated by various bracket-archwire combinations previously has been studied using in vitro testing models that included only one or three brackets. This study was performed using a...
Friction of Orthodontic Elastomeric Ligatures with Different Dimensions
Friction Orthodontic appliances Orthodontic brackets Orthodontic wires Polyurethanes
2008/11/27
The aim of this study was to evaluate in vitro the effect of variations in the size of elastomeric ligatures on the static frictional resistance generated by orthodontic sliding mechanics under dry ...
Friction Produced by Types of Elastomeric Ligatures in Treatment Mechanics with the Preadjusted Appliance
Orthodontic appliances Orthodontic brackets Orthodontic wires Polyurethanes Friction
2008/11/17
The objective was to compare the frictional forces generated by new nonconventional passive elastomeric ligatures (NCL) and conventional elastomeric ligatures (CL) under dry conditions. An experimen...
Clinical Evaluation of a Low-Friction Attachment Device during Canine Retraction
Orthodontic treatment Clear Snap Canine retraction
2008/11/10
Objective: The present study used a split-mouth design to compare the amount of canine movement and the retraction time between brackets with Clear Snap and brackets with stainless steel ligature wire...
Friction of Conventional and Silica-Insert Ceramic Brackets in Various Bracket-Wire Combinations
Friction Ceramic bracket
2008/11/3
Objective: To compare the level of friction resistance (FR) of conventional and silica-insert ceramic brackets using various bracket-wire combinations and angulations.Materials and Methods: Four types...