نتایج جستجو برای: orthodontic wire

تعداد نتایج: 45367  

2013
Rekha Mittal Deepak Rai Anand Patil Ashish Garg

BACKGROUND Since many years, various bonding attachments have been used as a mode of traction for surgically exposed impacted teeth. It has always been a challenge to select an attachment considering predictability of the bonded attachment, mucogingival and periodontal conditions of the overlying tissues, and additional inventory requirement. METHODS A 0.010-in. stainless steel ligature wire ...

Journal: :THE JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN 1989

Journal: :European journal of orthodontics 1997
J Artun A T Spadafora P A Shapiro

The present study was performed to test the tendency for plaque and calculus build-up along the wire of different types of bonded orthodontic canine-to-canine retainers, whether the presence of such retainers causes any damage to the teeth involved, the failure rate of the retainers, and any changes in incisor alignment during a 3-year period of retention. The four test groups received either r...

2013
Masaki MURAYAMA Yasuhiro NAMURA Takahiko TAMURA Hiroaki IWAI Noriyoshi SHIMIZU

UNLABELLED The relationship between orthodontic force and friction produced from an archwire and brackets affects the sliding of the wire in the leveling stage. OBJECTIVE The purpose of this study was to evaluate the relationship between force and friction in a small esthetic nickel-titanium (Ni-Ti) wire. MATERIAL AND METHODS Five esthetic wires (three coated and two plated) and two small, ...

2013
Raquel Morais CASTRO Perrin SMITH NETO Martinho Campolina Rebello HORTA Matheus Melo PITHON Dauro Douglas OLIVEIRA

OBJECTIVE To compare the static frictional forces generated at the bracket/wire interface of stainless steel brackets with different geometries and angulations, combined with orthodontic wires of different diameters. MATERIAL AND METHODS The frictional forces were evaluated with three different types of metal brackets: a passive self-ligating (SmartClipTM, 3M/Unitek, Monrovia, USA), with a mo...

2015
Souk Min Lee Chung-Ju Hwang

OBJECTIVE This study aimed to compare the frictional force (FR) in self-ligating brackets among different bracket-archwire angles, bracket materials, and archwire types. METHODS Passive and active metal self-ligating brackets and active ceramic self-ligating brackets were included as experimental groups, while conventional twin metal brackets served as a control group. All brackets were maxil...

Journal: :European journal of orthodontics 1998
L Pizzoni G Ravnholt B Melsen

Orthodontic tooth movement can be regarded as teeth sliding on a wire like pearls on a string, the force being supplied by springs or elastics. The movement implies friction between wire and bracket, taking up part of the force and leaving an uncontrolled amount to act on the teeth. The friction is likely to depend on bracket construction and wire material. Therefore, in this investigation the ...

2012
Massoud Seifi Farnaz Younessian Nazila Ameli

Introduction: Corticotomy-facilitated orthodontics provides a means for rapidly moving teeth purportedly with little damaging effects to the periodontium and with greatly reduced treatment time. The aim of this study was to enhance the orthodontic tooth movement by reducing the cortical bone layer (resistant to bone re-sorption relative to spongious bone) following Erbium, Chromium doped Yttriu...

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