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:: دوره 1، شماره 1 و 1 - ( مجموعه مقالات ارتودنسی 1390 ) ::
جلد 1 شماره 1 و 1 صفحات 0-0 برگشت به فهرست نسخه ها
Comparison of root resorption between self-ligating and conventional preadjusted brackets using cone beam computed tomography
چکیده:   (2555 مشاهده)

 Objective: To compare the magnitude of external apical root resorption (EARR) of incisors in patients undergoing the initial phase of orthodontic treatment with two sets of brackets.

 Materials and Methods: According to the results of the power analysis for sample size calculation, 19 Angle Class I patients (anterior crowding: 3 to 5 mm mean age: 20.6 years) were included in the study and randomly divided into two groups: group I (n = 11, self-ligating brackets) and group II (n = 8, conventional preadjusted brackets). The degree of EARR was detected in 152 upper and lower incisors by using cone-beam computed tomography (CBCT) scans and a three-dimensional program (Dolphin 11.5, Dolphin Imaging & Management Solutions, Chatsworth, Calif) with 25% level of sensitivity. The CBCT scans were obtained before (T1) and 6 months after initiation of treatment (T2). Differences between and within groups were analyzed by nonpaired and paired t-test, respectively, with 5% significance level.

 Results: Significant differences were found for both groups between T1 and T2. However, no differences in the degree of EARR were detected between the groups studied.

 Conclusions: Although EARR has occurred in all teeth evaluated, the bracket design (self-ligating or conventional) did not demonstrate any influence on the results observed.


 Source: Angle Orthodontists

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نوع مطالعه: پژوهشي | موضوع مقاله: ارتودنسی
دریافت: 1391/9/22 | انتشار: 1390/10/25
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Leite V, Conti A C, Navarro R, Almeida M, Oltramari-Navarro P, Almeida R. Comparison of root resorption between self-ligating and conventional preadjusted brackets using cone beam computed tomography. 3 2012; 1 (1 and 1)
URL: http://idai.ir/article-1-814-fa.html

Comparison of root resorption between self-ligating and conventional preadjusted brackets using cone beam computed tomography. 1. 1390; 1 (1 و 1)

URL: http://idai.ir/article-1-814-fa.html



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Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.
دوره 1، شماره 1 و 1 - ( مجموعه مقالات ارتودنسی 1390 ) برگشت به فهرست نسخه ها
جامعه اسلامی دندانپزشکان Islamic Dental Association of IRAN

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