title: Treatment of ectopic eruption of permanent mandibular first molars with innovative dental appliances.
abstract: OBJECTIVE
  Ectopic eruption (EE) of a first permanent molar occurs during mixed dentition. However, treatment of first permanent mandibular molar EE has been seldom reported.
  
  
  METHODS
  The cases of an 8-year-old girl and a 7-year-old boy are described, whose EE first permanent mandibular molars were correctly positioned after treatment with a dental appliance comprising a lingual arch, sectional arch, crimpable hook, and power chain or a simple molar controller, respectively. Both dental appliances are technically easy to construct, require short chair time, induce little discomfort on the patient, and ensure high-level treatment efficiency.
authors.affiliation: Department of Paediatric Dentistry, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: C
authors.initials: C
authors.lastname: Mitsuhata
authors.affiliation: Department of Paediatric Dentistry, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Konishi
authors.affiliation: Department of Paediatric Dentistry, Hiroshima University Hospital, Hiroshima, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kaihara
authors.affiliation: Department of Paediatric Dentistry, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kozaia
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar; D009967:Orthodontic Appliances; D014079:Tooth Eruption, Ectopic / Q000628:therapy*