نتایج جستجو برای: orthodontic wire
تعداد نتایج: 45367 فیلتر نتایج به سال:
statement of problem: a recent technique (mbt) has been introduced for easy and efficient orthodontic treatment by means of straight wire fixed appliances. although this technique has many advantages, in space closure stage causes up righting problem in upper incisors, which should be adjusted by applying additional torque in anterior region. purpose: the purpose of this clinical trial was to d...
An investigation on stress distribution of the anterior maxillary teeth PDL during the application of intrusive forces in midline Dr. S.M. Abtahi * - Dr. F. Heravi** * - Assistant professor of Orthodontics Dept. Faculty of Dentistry Hamedan University of Medical Sciences. ** - Assistant professor of Orthodontics Dept. Faculty of Dentistry Mashhad University of Medical Sciences. Background an...
Introduction: Orthodontic treatments and brackets application with various ligature methods have increased worldwide, but the growth rate and mechanism of microorganism adhesion to these ligatures is not fully discovered. The current study aimed to compare the level of streptococcus mutans adhesion to three different ligation methods. Materials and Methods: This in vitro study was performed on...
Abstract Reports have shown that molars can be distalized successfully with virtually no orthodontic anchorage loss with an intraosseous anchorage, even with fully erupted second molars. The purpose of this study was evaluating the effects of mini-screws as skeletal anchorage for upper molar distalization. In this case series, three patients needing maxillary first molar distalization,...
BACKGROUND AND OBJECTIVE: Premature loss of mandibular first molar is a common problem in adults. Mesial tipping of second molar may occur in this situation. Various orthodontic mechanics have been proposed for molar uprighting. The aim of this study was to compare four methods of molar uprighting using Finite Element Analysis(FEM). METHODS: In first model of this finite element study, a 0.019...
An investigation on the adhesion of two endodontic sealers AH 26, Dorifill) to dentin ( * - Dr. S. Khedmat** Dr. M. Khorramdoost*- Assistant professor of Endodontics Dept. Faculty of Dentistry Tehran University of Medical Sciences. ** - Dentist. Background and aim: Tensile bond strength of endodontic sealers to dentin is an indicative of sealer's adhesion to dentin. Due to the fact that Gutta...
This study compared fabr/cation of silver solder joints by dental students using an orthodontic blowpipe .or a Hydroflame ® soldering unit. Fifty-eight students attended a lecture and observed demonstrations of silver solder/ng. Thirty students used a Hydroflame ® to prepare one practice solder joint and two technique solder joints. These students then prepared one practice solder joint and two...
Craniofacial growth occurs throughout adulthood for both orthodontically treated and untreated patients.1,2 One aspect of skeletal change is a decrease of the intercanine dimension with an increase in anterior tooth irregularity.3,4 Other factors may contribute to this misalignment, such as the anterior component of force—a vertical occlusal force on posterior teeth creating a horizontal vector...
Abstract Background Wire-bending skills is commonly taught through live demonstrations (LD) though flipped classroom (FC) method has gained popularity. Continuous formative assessment promotes personalised learning via closely monitored progress, with the identification of students’ strengths and weaknesses. This study aims to evaluate effects LD FC teaching methods, supplemented continuous ass...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید