Friction and Frictionless Mechanics. Biomechanics of space closure

      Аннотация: This book includes detailed information about the biomechanical basis of space closure that better enables clinicians to determine anchorage and treatment options.Inspite of variety of appliance designs,space closure can be performed by means of friction and frictionless mechanics and each technique has its advantages and disadvantages.The orthodontist should have a thorough knowledge about the force applied by the auxiliaries, in order to predict the outcome of the treatment. There are various schools of thoughts concerning the merits of friction and frictionless mechanics. The clinician should be aware of the characteristics of the orthodontic appliance that contribute to friction during sliding mechanics and the extent of the amount of force expected to be lost to friction.This will help allow efficient reproducible results to be achieved.The literature also is vast and varied.So the opinion about the effectiveness of various designs are varied too.Eventually it lies on individuals to decide which is the best with respect to any clinical situation, patient compliance, working time etc & what works best.

Ключевые слова: Friction, Loops, space closure, Tooth Movement