چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | علوم پزشکی کرمانشاه |
| کد مقاله | 9067 |
| عنوان فارسی مقاله | |
| عنوان لاتین مقاله | In-vitro impact of insertion angle on primary stability of miniscrews |
| نوع مقاله | مقاله اصیل (پژوهشی، Original) |
| بالاترین نمایه نامه بینالمللی | ISI |
| سطح مقاله | |
| IF | 1.69 |
| عنوان نشریه | American Journal of Orthodontics and Dentofacial Orthopedics |
| نوع نشریه | خارجی ایندکس شده |
| شماره نشریه | 3 |
| دوره | 150 |
| تاریخ انتشار شمسی | 1395/06/11 |
| تاریخ انتشار میلادی | |
| آدرس لینک مقاله/ همایش در شبکه اینترنت | http://www.ajodo.org/article/S0889-5406(16)30188-3/abstract |
| DOI | |
| آدرس علمی (Affiliation) نویسنده متقاضی | Assistant professor, Oral and Maxillofacial Radiology Department, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran |
| Introduction: The use of miniscrews as anchorage has become increasingly popular, but there is no consensus on the best insertion angle. The purpose of this study was to determine the impact of insertion angle on implant primary stability. Methods: Sixty-four miniscrews, 6 3 1.6 mm, were placed in 64 fresh bone segments from 32 sheep mandibles. The miniscrews were inserted into the bone surface at 4 angles: 30, 45, 60, and 90. The maximum resistance forces of miniscrews in pullout and shear tests were determined as primary stability using a universal testing machine. Results: In the pullout tests, the 90 insertion angle had the highest primary stability. Oblique angulations of the miniscrews resulted in lower resistance. In the shear tests, angulations of the miniscrews from 90 to 45 led to increased primary stability. A more oblique insertion (30) resulted in reduced primary stability. Conclusions: The direction of the applied force had a significant impact on the primary stability of miniscrews at various insertion angles. The highest primary stability values were achieved at 45 when the miniscrews were loaded by shear force and at 90 when pullout force was applied. |
| نویسنده | نفر چندم مقاله | نویسنده مسئول |
|---|---|---|
| نفیسه نیک کردار | سوم | خير |
| امین گلشاه | دوم | بلي |
| مجید رضایی | چهارم | خير |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| AJODO.pdf | 1395/07/04 | 651796 | دانلود |
