title: Mini-implants: mechanical resource for molars uprighting.
abstract: BACKGROUND
  The early orthodontic treatment allows correction of skeletal discrepancies by growth control, and the elimination of deleterious habits, which are risk factors for the development of malocclusions, favoring for the correction of tooth positioning later in a second treatment stage. During development of teeth and occlusion, the mandibular second molars commonly erupt in the oral cavity after all other teeth of the anterior region. In their eruptive process there may be a condition known as tooth impaction, which precludes its complete eruption and requires proper uprighting treatment. The temporary anchorage devices allow disimpaction and movement of these teeth directly to their final position, without the need of patient compliance or reaction movements in other parts of the arch.
  
  
  OBJECTIVE
  This paper aims at describing a case report of the treatment of a patient with Angle Class II malocclusion, performed in two phases, in which mini-implants were used for uprighting the impacted mandibular second molars.
authors.affiliation: Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre / RS, Brazil. susianeallgayer@gmail.com
authors.forename: Susiane
authors.initials: S
authors.lastname: Allgayer
authors.forename: Deborah
authors.initials: D
authors.lastname: Platcheck
authors.forename: Ivana Ardenghi
authors.initials: IA
authors.lastname: Vargas
authors.forename: Raphael Carlos Drumond
authors.initials: RC
authors.lastname: Loro
mesh_terms: D002508:Cephalometry; D002648:Child; D015921:Dental Implants; D005260:Female; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008334:Mandible / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D008963:Molar / Q000002:abnormalities* / Q000601:surgery; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D009971:Orthodontics, Corrective / Q000379:methods*; D011862:Radiography, Panoramic; D014087:Tooth Movement Techniques / Q000295:instrumentation*; D014095:Tooth, Impacted / Q000628:therapy*
chemical_list: D015921:Dental Implants
keywords: Corrective orthodontics; Impacted tooth; Orthodontic anchorage procedures