نتایج جستجو برای: orthodontic appliance

تعداد نتایج: 20372  

2016

To date, the number of adult patients looking for aesthetic and comfortable alternatives to traditional fixed appliance therapies is increasing significantly. One of the biggest challenges an adult orthodontic patient faces is the time spent wearing the appliance: to accelerate orthodontic tooth movement and shorten treatment duration is thus a topical issue. Corticotomy is an effective and saf...

2014
Soon-Yong Kwon Yong Kim Hyo-Won Ahn Ki-Beom Kim Kyu-Rhim Chung Seong-Hun Kim Sunny

The availability of 3D dental model scanning technology, combined with the ability to register CBCT data with digital models, has enabled the fabrication of orthognathic surgical CAD/CAM designed splints, customized brackets, and indirect bonding systems. In this study, custom lingual orthodontic appliances were virtually designed by merging 3D model images with lateral and posterior-anterior c...

Journal: :The Angle orthodontist 2000
S McNab D Battistutta A Taverne A L Symons

This study investigated the association of appliance type and tooth extraction with the incidence of external apical root resorption (EARR) of posterior teeth following orthodontic treatment. Pre- and posttreatment orthopantomograms were compared for 97 patients and a 4-grade ordinal scale used to measure EARR. The incidence of EARR was positively associated with tooth position (P < .001), appl...

Journal: :iranian journal of microbiology 0
elham khanpayeh school of dentistry, shahid sadoughi university of medical sciences, yazd, iran. abbasali jafari international branch, shahid sadoughi university of medical sciences, yazd, iran. zohre tabatabaei orthodontist, private practitioner, safaieh, yazd, iran.

background  and  objectives:  long-term  usage  of  fixed and  removable  orthodontic  appliances  creates  a  favorable environment for the augmentation of oral normal microflora particularly candida species, which can increases the risk of periodontal lesions. the aim of this study was to assess quantitative and qualitative alterations in the carrier rate of candida spp. after placement of fi...

Journal: :The Angle orthodontist 2008
Joseph H Yozgatian Jorge L Zeredo Hitoshi Hotokezaka Yoshiyuki Koga Kazuo Toda Noriaki Yoshida

OBJECTIVE To investigate by behavioral methods the relationship between emotional stress and pain during experimental tooth movement in rats. MATERIALS AND METHODS Sixteen male Sprague-Dawley rats (210 to 250 g) were divided into two groups. The experimental group was treated with an active Ti-Ni appliance, and the control group received a passive appliance. A force of 20 gf was delivered by ...

2014
Elham Khanpayeh Abbas Ali Jafari Zohre Tabatabaei

BACKGROUND AND OBJECTIVES Long-term usage of fixed and removable orthodontic appliances creates a favorable environment for the augmentation of oral normal microflora particularly Candida species, which can increases the risk of periodontal lesions. The aim of this study was to assess quantitative and qualitative alterations in the carrier rate of Candida spp. after placement of fixed and remov...

2014
Mayara Paim Patel José Fernando Castanha Henriques Karina Maria Salvatore de Freitas Roberto Henrique da Costa Grec

OBJECTIVE The aim of this study was to cephalometrically assess the skeletal and dentoalveolar effects of Class II malocclusion treatment performed with the Jones Jig appliance followed by fixed appliances. METHODS The sample comprised 25 patients with Class II malocclusion treated with the Jones Jig appliance followed by fixed appliances, at a mean initial age of 12.90 years old. The mean ti...

Journal: :Dentistry 2022

In orthodontics there has been a change in the treatment plan of crowding cases from extraction protocol. This was mainly due to introduction self-ligating bracket and temperature activated wires. Even though are certain exceptions, have evolved because its advantages such as low friction, shorter duration increased efficacy. Damon’s system existence since 1930 but it well developed past 30 yea...

2015
Rhonda Nga Yi Cheung Urban Hägg Ricky Wing Kit Wong Chongshan Liao Yanqi Yang

The aim of this study was to evaluate the change in mandibular position during a two-phase orthodontic treatment of skeletal Class II malocclusion. Thirty consecutively treated Chinese male adolescents who had undergone two-phase treatment with Herbst appliance and fixed appliance and fulfilled the specific selection criteria were sampled. Cephalograms taken at T0 (before treatment), T1 (at the...

Journal: :Nigerian journal of clinical practice 2014
T Topcuoglu O Yildirim M Birlik O Sokucu M Semiz

BACKGROUND Psychosocial consequences and post-operative anxiety in patients after fixed orthodontic treatment are important parameters that must be evaluated by clinicians not to effect patient and their parent's psychosocial mood negatively. OBJECTIVE The aim of this study was to evaluate the changes in depression and anxiety levels of orthodontic patients and their parents before the extrao...

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