نوع مقاله : مقاله کامل پژوهشی
نویسندگان
1 دانشگاه فردوسی مشهد، دانشکده مهندسی، گروه مکانیک
2 دانشگاه علوم پزشکی رفسنجان، دانشکده دندانپزشکی، بخش ارتودنسی
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
The main objective of this study is to present a mathematical model for frictional forces in orthodontic tooth movements. In order to produce lighter and more efficient sliding movement, good estimation of frictional forces must be determined. For the purpose of analysis, a typical bracket with a circular cross section arch wire is considered with a view to examine the effect of ligation technique (shape), geometry and properties of ligature, and arch wire on the friction forces between ligature and arch wire. Both uniform and non-uniform distributions of contact forces are considered. The result presented herein indicated that, for circular orthodontic arch wires, friction force between ligature and wire is proportional to tensile force in elastomeric ligature. This force is depended on the shape of ligation, material properties and geometries of wire, bracket and ligature.
کلیدواژهها English