Intrusão de molares superiores com o uso de mini-implantes ortodônticos: revisão de literatura

Abstract

The lack of vertical space is a factor that hinders the prosthetic rehabilitation. Generally, with the loss of a tooth undergoes its antagonist extrusion precluding recovery of the lost frame. The orthodontic miniscrews use, facilitated intrusion movement of a tooth eliminating the need for assembly of complete apparatus. The the insertion site of the miniscrews choice depends on factors such as action force line, anatomy and space between the roots tooth involved and its adjacent. By having reduced dimensions when compared to a conventional implant, these devices allow greater flexibility choice as to the insertion site providing various planning according to biomechanical motion to be achieved. Although fixtures, there is still need the patient compliance regard to the hygiene of the place, it is important to avoid peri-implant inflammation so that the miniscrews is not lost and mechanical paralyzed. The present study consists of a review of the literature regarding the biomechanical, supported by miniscrew used for intrusion of extruded molars that have suffered the loss of his antagonist. With him it was concluded that the intrusion achieved this way is a good therapeutic option, since they provide a more conservative treatment, without the need to wear the crown and endodontic treatment extruded element. Moreover, these biomechanical offer greater control of anchoring, eliminating unwanted reciprocal movements being extremely important planning the location of miniscrew in biomechanical control of tooth movement.