fa Effects of 2 bracket and ligation types on plaque retention: A quantitative microbiologic analysis with real-time polymerase chain reaction ارتودنسی Orthodontics پژوهشي Research <p> <strong>Introduction</strong></p><p>  The aim of this study was to evaluate the effects of self-ligating brackets and conventional brackets ligated with stainless steel ligatures on dental plaque retention and microbial flora.</p><p> <strong> Methods</strong></p><p>  Twenty boys (mean age, 14.2 ± 1.5 years) underwent bonding with self-ligating bracket systems and conventional standard edgewise bracket systems ligated with stainless steel ligatures with a split-mouth design. Clinical measurements, including plaque index, probing pocket depth, and bleeding on probing, were obtained before bonding, 1 week after bonding, and 3 months after bonding. Supragingival plaque samples were obtained at baseline and 3 months after bonding for the detection of bacteria. A quantitative analysis for Streptococcus mutans, Streptococcus sobrinus, Lactobacillus casei, and Lactobacillus acidophilus was performed using real-time polymerase chain reaction. The Mann-Whitney U test and the Hotelling T2 multivariate test were used for statistical comparisons of the groups. </p><p> <strong>Results </strong></p><p> The numbers of S mutans, S sobrinus, L casei, and L acidophilus were not statistically different between self-ligating brackets and conventional brackets ligated with stainless steel ligatures (P >0.05). The 2 archwire ligation techniques showed no statistically significant differences in plaque index, bleeding on probing, and probing pocket depth values of the bonded teeth (P >0.05). All clinical parameters and the numbers of all microorganisms showed statistically significant increases from baseline to 3 months after bonding in both groups (P <0.001). </p><p> <strong>Conclusions</strong></p><p>  Self-ligating brackets and conventional brackets ligated with stainless steel ligatures do not differ with regard to dental plaque retention. </p><hr><p></p><p> <strong>Source: </strong>American Journal of Orthodontics & Dentofacial Orthopedics </p><p> <a href="http://www.ajodo.org/article/S0889-5406(13)00467-8/abstract" target="_blank"><font color="#0000ff">Full Text</font></a></p> 0 0 http://idai.ir/browse.php?a_code=A-10-32-1838&slc_lang=fa&sid=1 Zeliha Müge Baka 10031947532846008660 10031947532846008660 Yes Department of Orthodontics, Faculty of Dentistry, Selçuk University, Konya, Turkey Faruk Ayhan Basciftci 10031947532846008661 10031947532846008661 No Department of Orthodontics, Faculty of Dentistry, Selçuk University, Konya, Turkey Ugur Arslan 10031947532846008662 10031947532846008662 No Department of Microbiology, Faculty of Medicine, Selçuk University, Konya, Turkey