o bjectives: various methods have been introduced for evaluation of tooth movement in orthodontics. the challenge is to adopt the most accurate and most beneficial method for patients. this study was designed to introduce analysis of digital photographs with auto- cad software as a method to evaluate tooth movement and assess the reliability of this method. mat erials and methods : eighteen pat...

introduction: the aim of this study is to evaluate the effects of low-level neodymium-doped yttrium aluminium garnet (nd:yag) laser irradiation on orthodontic tooth movement and histological examination. methods: eleven male wistar rats (aged 10 weeks) were included. to produce experimental tooth movement in rats, 10 g force was applied to maxillary first molars with nickel titanium closed coil...

objective: osteopontin (opn) has been proposed to play a role in bone resorption. with regard to bone and cementum/dentin structural and histological similarities, it was hy-pothesized that expression of this gene might be increased in resorptive lacunae during orthodontic tooth movement. materials and methods: fixed nickel-titanium closed coil springs (dentaurum ® ) capa-ble of delivering appr...

the aim of this animal study was to evaluate the possible effects of carbonated soft drink consumption on the rate of orthodontic tooth movement in rats.thirty-six adult male sprague-dawley rats were randomly divided into two experimental groups and one control group. in the experimental groups (a&b;), the water in the dietary regimen was replaced with soft drinks (fanta® in group a and cola® i...

low-level laser therapy (lllt) provides several benefits for patients receiving orthodontic treatment. according to some literatures, orthodontic tooth movement (otm) can be enhanced but some investigators have reported contradictory results. this article reviews the literature regarding the different aspects of the use of lllt on otm and its alterations. the general data regarding the study de...

tramadol is a synthetic analgesic of opioids which has more flexible mechanisms of action than typical opioids. since it has been reported in previous study that typical opioids like morphine can affect the bone homeostasis, it is worthwhile to examine the effects of tramadol on tooth movement. in this study we investigated effects of tramadol on orthodontic tooth movement in rats.30 male wista...

inhibition of prostaglandin (pgs) production leads to decrease in orthodontic tooth movement (otm). it is not known whether inhibition of cyclooxygenase-1 (cox-1) or cyclooxygenase-2 (cox-2) is the key mechanism for this effect. in this study, the effect of celecoxib, a highly-selective cox-2 inhibitor, was investigated on otm in rats.four groups of male rats (seven animals in each goup) were u...

prostaglandin £j (pge-^) and indomethacin, a nonstroidal antiinflammatory drug, were separately administered during ortliodontic tooth movement in rats. at the beginning, an orthodontic appliance was placed and activated in male albinos rats. in tlie first examination, the experimental group received submucosal injections of pge-y (10 mg/kg/day) near the first maxillary riglit molars, and alcoh...

objective: the gingival crevicular fluid (gcf) is an inflammatory exudate found in the gingival sulcus. the forces exerted during orthodontic treatment cause distortion of the periodontal ligament (pdl) extra-cellular matrix, resulting in some biological features that can lead to modification of both gcf volume and its components. the present study investigated the effect of orthodontic tooth m...