ABSTRACT
This paper describes the Hybrid Orthodontic Treatment System (HOTS), an innovative method used in first premolar extraction cases. It comprises the following three components: (1) a miniscrew, (2) dual-dimension wires, and (3) multiloop edgewise archwires. HOTS consists of four clearly defined treatment steps: (1) setup, (2) leveling, (3) separate but simultaneous anterior and canine teeth retraction, and (4) final adjustment. HOTS achieves a predictable treatment outcome with a shorter treatment time.
Subject(s)
Orthodontic Appliances , Tooth Movement Techniques/methods , Bicuspid/surgery , Biomechanical Phenomena , Bone Screws , Cuspid/pathology , Dental Alloys/chemistry , Female , Humans , Incisor/pathology , Malocclusion, Angle Class II/therapy , Nickel/chemistry , Orthodontic Anchorage Procedures/instrumentation , Orthodontic Anchorage Procedures/methods , Orthodontic Appliance Design , Orthodontic Brackets , Orthodontic Space Closure/instrumentation , Orthodontic Space Closure/methods , Orthodontic Wires , Patient Care Planning , Stainless Steel/chemistry , Stress, Mechanical , Surface Properties , Time Factors , Titanium/chemistry , Tooth Extraction , Tooth Movement Techniques/instrumentation , Torque , Treatment Outcome , Young AdultABSTRACT
This article is a review of the rationales, indications, methods, and effects of orthodontic treatment with maxillary second molar extractions. In addition to the patient's malocclusion, specific considerations about the status and position of the maxillary second and third molars should be taken into account. In recent years, the development of temporary anchorage devices, in addition to extraoral traction and intraoral distalization appliances, has become another armamentarium in the distalization of the maxillary posterior teeth, which may affect the selection of teeth to be extracted from second to third molars. In conclusion, extraction of maxillary second molars is a viable option in selected cases at present, but it is important to understand the indications and limitations of this treatment choice.
