نتایج جستجو برای: orthodontic appliance design

تعداد نتایج: 979014  

Journal: :journal of dentistry, tehran university of medical sciences 0
ah mirhashemi assistant professor, department of orthodontics, faculty of dentistry, tehran university of medical sciences, tehran, iran. a saffarshahroudi a sodagar m atai

an ideal orthodontic force system should exert continuous light force. thus, many efforts have been made to improve the memory characteristics of elastomeric chains. the aim of this study was to compare elastomeric chains (ecs) claimed by their manufacturers to offer high memory with traditional ones according to their force-extension diagrams.in this in-vitro study, ecs were divided into six g...

Journal: :European journal of orthodontics 2011
H G Jeremiah D Bister J T Newton

This study ascertained the influence of orthodontic appliances on subjective ratings for social competence (SC), intellectual ability (IA), psychological adjustment (PA), and attractiveness in young adult orthodontic patients. A cross-sectional analytical questionnaire study was conducted with 130 undergraduates from the UK. Each participant was asked to look at a single, randomly assigned colo...

Journal: :dental research journal 0
shiva alavi farnaz tajmirriahi

abstract background: the aim of this study is to evaluate the dimensional accuracy of mbt (mclaughlin, bennett and trevisi ) brackets manufactured by two different companies (american orthodontics and ortho organizers) and determine variations in incorporation of values in relation to tip and torque in these products. methods: in the present analytical/descriptive study, sixty-four maxillary ri...

بهرامی, حسین , دین پرور, مریم , محمودزاده, مجید , ملاباشی, وحید ,

Introduction & Objective: The aim of this study was todeterminetheamount of external apical root resorption(EARR)within two orthodontic appliances (standard edgewise and MBT). Material & Methods In this retrospective study, panoramic radiographs of 83 orthodontic patients (27 male and 56 female) were evaluated. 46 patients had been treated with standard edgewise appliance (29 patients with e...

2009
Vicky WK Tsui Hessa A Alkhal Huie M Hou Ricky WK Wong A Bakr M Rabie

BACKGROUND Orthodontic management of an ectopically erupted canine requires substantial amount of bodily movement which is difficult to perform and often results in root resorption. CASE PRESENTATION A 9 year old girl presented with Class I malocclusion with crowding and ectopically positioned upper left canine (23). Treatment involved extraction of all first premolars. The alignment of the u...

امامی, آمنه, توده زعیم, محمدحسین , حائریان اردکانی, احمد , زندی, هنگامه , طباطبایی, زهره , قطره سامانی, لادن,

Introduction: Patients receiving orthodontic treatment get some alterations in their oral cavity environment such as an increase in the levels of microorganism in oral cavity and dental biofilms. Therefore, this study aimed to evaluate as well as to compare the colonization of mutans streptococci in different parts of removable orthodontic appliances. Methods: In this descriptive analytic stu...

Journal: :journal of dental research, dental clinics, dental prospects 0
parisa salehi associate professor, orthodontic research center, faculty of dentistry, department of orthodontics shiraz, fars, iran hamidreza pakshir full professor, orthodontic research center, faculty of dentistry, department of orthodontics shiraz, fars, iran navid naseri private orthodontist, london dentamed academy ltd, shiraz, fars, iran tahereh baherimoghaddam assistant professor

background and aims. this in vitro study was designed to evaluate the effect of composite resin types and orthodontic debonding pliers on the amount of adhesive remnants and enamel damages using a novel method of measurement. materials and methods. 120 extracted human premolars were randomly divided into four groups (n = 30). the standard edgewise metallic brackets were bonded to the teeth with...

Journal: :European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry 2013
A Hamid Zafarmand M Mahdi Zafarmand

AIM Removable appliances are a dependable choice for many patients but like all orthodontic appliances, they have some limitations in use. Patient selection and appropriate appliance design are two key factors for success. Many patients, especially adults, prefer intra-oral appliances to extra-oral devices. Sometimes a removable intra-oral appliance can solve a dental problem in a shorter perio...

Journal: :European journal of orthodontics 2012
S Drummond C Canavarro G Perinetti R Teles J Capelli

UNLABELLED This randomized split-mouth study was aimed at evaluating whether an orthodontic appliance per se or orthodontic tooth movement can induce detectable changes in gingival crevicular fluid (GCF) volume, and thus whether GCF volume is a predictable biomarker for tissue remodelling incident to orthodontic tooth movement. MATERIALS AND METHODS Sixteen healthy orthodontic patients (7 fem...

2012
Mika Salmi Jukka Tuomi Rauno Sirkkanen Tuula Ingman Antti Mäkitie

Traditionally oral appliances i.e. removable orthodontic appliances, bite splints and snoring / sleep apnea appliances are made with alginate impressions and wax registrations. Our aim was to describe the process of manufacturing customized oral appliances with a new technique i.e. rapid tooling method. The appliance should ideally be custom made to match the teeth. An orthodontic patient, sche...

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