title: Efficient usage of implant anchorage to treat overerupted maxillary first molar and mesially inclined mandibular molars.
abstract: This case report demonstrates the efficient use of implant anchorage in a patient with mesially inclined mandibular molars and an overerupted maxillary molar. A 14-year-old girl had an overerupted maxillary right first molar, possibly because of severely inclined mandibular right molars. Two-step use of miniplate anchorage in the right zygomatic process was proposed. As the first step, the overerupted maxillary first molar was intruded with elastic chains from the miniplate for 10 months. Then the maxillary right molars were distalized by using the miniplate to correct the Class II molar relationship. In the mandible, the first molar was extruded with intermaxillary elastics applied from the miniplate to the molar for 7 months after the uprighting of the mandibular right second molar. The results suggest that the use of 2-step implant anchorage is efficient for intrusion and distalization of maxillary molars and extrusion and uprighting of mandibular inclined molars.
authors.affiliation: Department of Orthodontics and Dentofacial Orthopedics, The University of Tokushima, Tokushima, Japan.
authors.forename: Ritsuko
authors.initials: R
authors.lastname: Ohura
authors.forename: Shingo
authors.initials: S
authors.lastname: Kuroda
authors.forename: Takumi
authors.initials: T
authors.lastname: Takahashi
authors.forename: Yuko
authors.initials: Y
authors.lastname: Tomita
authors.forename: Eiji
authors.initials: E
authors.lastname: Tanaka
mesh_terms: D000293:Adolescent; D001860:Bone Plates; D002508:Cephalometry; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D008334:Mandible; D008437:Maxilla; D008963:Molar / Q000473:pathology*; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016382:Orthodontic Appliance Design; D050793:Orthodontic Extrusion / Q000295:instrumentation / Q000379:methods; D010347:Patient Care Planning; D014078:Tooth Eruption; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome; D015050:Zygoma / Q000601:surgery
chemical_list: D015921:Dental Implants