fa Prevalence of white spot lesion formation during orthodontic treatment ارتودنسی Orthodontics پژوهشي Research <p> <strong>Purpose:</strong> </p><p> To quantify the prevalence of white spot lesions (WSLs) on the anterior teeth and, secondarily, to evaluate risk factors and predictors. <strong></strong></p><p> <strong>Materials and Methods:</strong></p><p>  Digital photographs and records of 885 randomly chosen patients were evaluated before and after treatment. Chart information included gender, age, as well as banding and debanding dates. Fluorosis and oral hygiene before and after treatment were also evaluated. Preexisting and posttreatment WSLs were recorded and compared for all 12 anterior teeth. Risk ratios (RR) and absolute risk (AR) were calculated to determine the likelihood and risk of WSL formation.</p><p> <strong> Results:</strong></p><p>  Overall, 23.4% of the patients developed at least one WSL during their course of treatment. Maxillary anterior teeth were affected more than mandibular teeth. The maxillary laterals and canines and the mandibular canines were the most susceptible. There was no significant difference in WSLs between genders. Fluorosis, treatment time in excess of 36 months, poor pretreatment hygiene, hygiene changes during treatment, and preexisting WSLs were all significantly (P < .05) related to the development of WSLs. The highest risk of developing WSLs was associated with preexisting WSLs (RR = 3.40), followed by declines in oral hygiene during treatment (RR = 3.12) and poor pretreatment oral hygiene (RR = 2.83). </p><p> <strong>Conclusions:</strong></p><p>  Nearly 25% of the patients developed WSLs while in treatment, depending on fluorosis, treatment time, preexisting WSLs, and oral hygiene. Orthodontists need to be mindful of these risk factors when making treatment decisions. </p><hr><p></p><p> <strong>Source: </strong>The Angel Orthodontists</p><p> <a href="http://www.angle.org/doi/abs/10.2319/071712-584.1" target="_blank"><font color="#0000ff">Full Text</font></a></p> White spot lesions, Orthodontic treatment, Risk ratio, Fluorosis, Hygiene, Treatment time 0 0 http://idai.ir/browse.php?a_code=A-10-32-1992&slc_lang=fa&sid=1 Katie C. Julien 10031947532846009356 10031947532846009356 No Department of Orthodontics, Baylor College of Dentistry, Texas AM Health Science Center, Dallas, Tex Peter H. Buschang phbuschangbcd.tamhsc.edu 10031947532846009357 10031947532846009357 Yes Department of Orthodontics, Baylor College of Dentistry, Texas AM Health Science Center, Dallas, Tex Philip M. Campbell 10031947532846009358 10031947532846009358 No Department of Orthodontics, Baylor College of Dentistry, Texas AM Health Science Center, Dallas, Tex