title: Upper molar intrusion in rehabilitation patients with the aid of microscrews.
abstract: BACKGROUND
  Overeruption of an upper molar following loss of the opposing tooth is a common clinical finding. Rehabilitation can be difficult when the interocclusal space is reduced.
  
  
  OBJECTIVE
  To intrude an overerupted upper first molar and replace the missing lower first molar.
  
  
  METHODS
  Buccal and palatal microscrews and a transpalatal bar were placed. The palatal miniscrew loosened shortly after implantation and was not replaced. A short length of elastomeric chain from the buccal miniscrew applied 30 g of force to the overerupted molar. The elastomeric chain was replaced every four weeks.
  
  
  RESULTS
  Sufficient intrusion of the upper molar was obtained in 4 months.
  
  
  CONCLUSIONS
  A single buccal microscrew and transpalatal arch can be used to intrude an overerupted upper molar.
authors.affiliation: Department of Orthodontics, Latin American Institute of Dentistry Research and Education, Curitiba, PR, Brazil. amelo@ilapeo.com.br
authors.forename: Ana Cláudia Moreira
authors.initials: AC
authors.lastname: Melo
authors.forename: Mario Eduardo
authors.initials: ME
authors.lastname: Jawonski
authors.forename: Lucila Zimmermann
authors.initials: LZ
authors.lastname: Largura
authors.forename: Geninho
authors.initials: G
authors.lastname: Thomé
authors.forename: José Renato
authors.initials: JR
authors.lastname: de Souza
authors.forename: Marcos André Duarte
authors.initials: MA
authors.lastname: da Silva
mesh_terms: D001863:Bone Screws; D003758:Dental Implantation, Endosseous; D003799:Dental Stress Analysis; D005260:Female; D006801:Humans; D008875:Middle Aged; D008904:Miniaturization; D008963:Molar / Q000503:physiopathology; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D009967:Orthodontic Appliances; D014078:Tooth Eruption; D014087:Tooth Movement Techniques / Q000379:methods*