نتایج جستجو برای: canine retraction
تعداد نتایج: 48299 فیلتر نتایج به سال:
Aim: Orthodontic treatment is routinely carried out in patients with the purpose of correcting various forms of dental malocclusions. Retraction of the canines can be achieved either individually or along with incisor. Pentraxin-3 (PTX-3) is regarded as the true independent indicator of disease activity. Hence, we undertook the present study to assess and compare the level of PTX-3 in patients ...
Objective: To evaluate the efficiency of infrared diode laser on pain reduction during canine initial retraction. Methods: Twelve patients in need of canine retraction were selected. The canines were retracted with closed NiTi coil springs activated to 150 g per side. One canine of each patient was randomly selected for laser irradiation immediately after activation and after 3 and 7 days. The ...
Tooth movements produced by a canine retraction spring were calculated. Although a gable bend and an anti-rotational bend were incorporated into the spring, the canine tipped and rotated initially. Retraction force decreased and moment-to-force ratio increased after the spring legs closed. Then, the initial tipping and rotation began to be corrected. As a result, the canine moved almost bodily ...
BACKGROUND The aim of this clinical prospective study is to apply and evaluate an approach to reduce the overall orthodontic treatment time, by means of dentoalveolar distraction osteogenesis to achieve rapid canine retraction using an indigenously developed intra-oral tooth-borne distraction device. MATERIALS & METHODS This study was carried out in the Department of Orthodontics and Dentofac...
trusion often involves the extraction of four first premolars.1 Since these patients often have Class I molar relationships, the objective is usually to reduce the lip protrusion and correct the incisor inclinations with the least amount of anchorage loss. Although headgear has historically been the standard for maximum anchorage,2,3 its intermittent force application and requirement for patien...
BACKGROUND Low-intensity laser therapy (LILT) can be utilized for different treatments in the field of orthodontics and dentofacial orthopedics. The aim of the present study was to evaluate the efficacy of LILT on (1) the rate of canine movement during canine retraction phase and (2) evaluate the radiographic changes occurring during LILT around the irradiated area. MATERIALS AND METHODS A to...
Introduction- FEM is a mathematical method in which the shape of complex geometric objects and their physical properties are computer-constructed. Physical interactions various components model can then be calculated terms stress strain, detailed information difficult to obtain by any other experimental or analytical means due interaction anatomical structures with surrounding tissue. Aim- Comp...
Methods: Three different methods for partial canine retraction were evaluated: retraction with elastic chain directly attached to bracket; elastic chain connected to bracket hook and with sliding jig activated with the aid of an elastic chain attached to a mini-implant. For this evaluation, a Typodont was adapted to simulate the desired movements when exposed to a heat source. After obtaining t...
BACKGROUND The objectives of this study were to evaluate the rate of canine distalization by segmental alveolar distraction method in first premolar extraction cases, to evaluate the displacement of the canine and first molar teeth, to assess the effects of the procedure on the pulpal vitality of the canines, and to determine the amount of root resorption in retracted canines. MATERIALS & MET...
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