کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3116939 1582719 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Placement angle effects on the success rate of orthodontic microimplants and other factors with cone-beam computed tomography
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Placement angle effects on the success rate of orthodontic microimplants and other factors with cone-beam computed tomography
چکیده انگلیسی

IntroductionThe purpose of this study was to evaluate the effect of placement angles on the success rate of orthodontic microimplants and other factors with cone-beam computed tomography images.MethodsWe examined 228 orthodontic microimplants implanted into the maxillary buccal alveolar bone of 130 patients (33 men, 97 women) with malocclusion. Vertical placement angle, horizontal placement angle, root proximity, and cortical bone thickness were measured, and the correlations between these measurements and orthodontic microimplant success rates and the correlations among the measurements were evaluated.ResultsThe overall success rate was 87.7% (200 of 228). The orthodontic microimplant success rate statistically significantly increased as root proximity (distance from the orthodontic microimplant to the root surface) increased (P <0.05), but there were no statistical significances between placement angles and success rates, and cortical bone thickness and success rate (P >0.05). Correlations between placement angles and root proximity showed no statistical significance (P >0.05), but correlations between vertical placement angle and cortical bone thickness (P <0.001) and between horizontal placement angle and cortical bone thickness (P <0.01) showed statistical significance. A statistically significant (negative) correlation was found between vertical and horizontal placement angles (P <0.001).ConclusionsThe success rate of orthodontic microimplants is not affected by placement angles and is more significantly affected by root proximity than by cortical bone thickness. Cortical bone thickness is affected by placement angles, but root proximity is not affected by placement angles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: American Journal of Orthodontics and Dentofacial Orthopedics - Volume 143, Issue 2, February 2013, Pages 173–181
نویسندگان
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