نتایج جستجو برای: orthodontic wires

تعداد نتایج: 27966  

2016
Rashmi Bansal Priyanka Chowdhary Anuraag Gurtu Nakul Mehrotra Abhinav Kishore

Trauma may result in craze lines on the enamel surface, one or more fractured cusps of posterior teeth, cracked tooth syndrome, splitting of posterior teeth, and vertical fracture of root. Out of these, management of some fractures is of great challenge and such teeth are generally recommended for extraction. Literature search reveals attempts to manage such fractures by full cast crown, orthod...

Journal: :Journal of international oral health : JIOH 2013
Aravind Sivaraj

BACKGROUND Application of light and continuous forces for optimum physiological response and least damage to the tooth supporting structures should be the primary aim of the orthodontist. Nickel titanium alloys with the properties of excellent spring back, super elasticity and wide range of action is one of the natural choices for the clinicians to achieve this goal. In recent periods, various ...

2005
S. Maruthamuthu A. Rajasekar S. Sathiyanarayanan N. Palaniswamy

The aim of the present study is to investigate the electrochemical behaviour of orthodontic wires in artificial saliva with and without bacteria. Four factors were considered to characterize the bacteria present in the saliva, viz. urban and rural groups of vegetarians and non-vegetarians. The results showed that among the heterotrophic bacterial isolates, Gram-positive species dominated over t...

2015
Abdul Razzak A. Ghazal Mohammad Y. Hajeer Rabab Al-Sabbagh Ibrahim Alghoraibi Ahmad Aldiry

BACKGROUND This study aimed to compare superelastic and heat-activated nickel-titanium orthodontic wires' surface morphology and potential release of nickel ions following exposure to oral environment conditions. METHODS Twenty-four 20-mm-length distal cuts of superelastic (NiTi Force I®) and 24 20-mm-length distal cuts of heat-activated (Therma-Ti Lite®) nickel-titanium wires (American Ortho...

2016
Ahmet A. Celebi Hakan Keklik Enes Tan Faruk I. Ucar

OBJECTIVE The aim of this study was to clarify the morphological differences in the mandibular arches of Turkish and North American white subjects. METHODS The sample included 132 Turkish (34 Class I, 58 Class II, and 40 Class III) and 160 North American (60 Class I, 50 Class II, and 50 Class III) subjects. The most facial portion of 13 proximal contact areas was digitized from photocopied im...

Journal: :Dental press journal of orthodontics 2016
Murilo Gaby Neves Fabrício Viana Pereira Lima Júlio de Araújo Gurgel Célia Regina Maio Pinzan-Vercelino Fernanda Soares Rezende Gustavo Antônio Martins Brandão

INTRODUCTION The aim of this in vitro study was to compare the elastic properties of the load-deflection ratio of orthodontic wires of different lot numbers and the same commercial brand. METHODS A total of 40 nickel-titanium (NiTi) wire segments (Morelli Ortodontia™--Sorocaba, SP, Brazil), 0.016-in in diameter were used. Groups were sorted according to lot numbers (lots 1, 2, 3 and 4). 28-mm...

Journal: :BMJ case reports 2013
Alok Dubey Sheetal Mujoo Vishal Khandelwal Prathibha Anand Nayak

The immediate problem to be addressed in a new born with cleft lip and palate is the interference of feeding. Here we present a case of cleft lip and palate for which a feeding obturator was made to facilitate feeding till the defect could be surgically repaired. The design was modified by placing orthodontic wire on the acrylic plate for attaching the ties of mouth mask. Different precautionar...

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...

Journal: :journal of dentistry, shiraz university of medical sciences 0
zohreh hedayati orthodontic research center, dept. of orthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran. farnaz fakhri postgraduate student, orthodontic research center, school of dentistry, shiraz university of medical sciences, shiraz, iran. vahid moshkel gosha orthodontic research center, dept. of orthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran.

statement of the problem: the stability of orthodontic treatment depends on preserving the patient’s pretreatment arch form and arch size during and after treatment. purpose: this investigation was aimed to study the size and shape of iranian mandibular dental arch and evaluate the correlation of their average dental arch with commercially available preformed rectangular nickel-titanium arch wi...

2013
Chung How Kau Alpdogan Kantarci Tim Shaughnessy Amornpong Vachiramon Peerapong Santiwong Alvaro de la Fuente Darya Skrenes Dennis Ma Peter Brawn

BACKGROUND Numerous strategies have been proposed to decrease the treatment time a patient requires in orthodontic treatment. Recently, a number of device-accelerated therapies have emerged in orthodontics. Photobiomodulation is an emerging area of science that has clinical applications in a number of human biological processes. The aim of this study was to determine if photobiomodulation reduc...

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