title: A simple way to intrude overerupted upper second molars with miniscrews.
abstract: Various methods of using skeletal anchorage for the intrusion of overerupted maxillary molars have been reported; however, it is difficult to intrude the overerupted upper second molars because of the low bone density in the region of the tuberosity. This article illustrates a new treatment method using partial fixed edgewise appliances and miniscrews to intrude the overerupted upper second molars. The miniscrews were applied to reinforce the anchorage of the upper first molar. The intrusive force was generated by the Ni-Ti wire. The clinical results showed a significant intrusion effect without root resorption or periodontal problems. This report demonstrates that the combination of partial conventional fixed appliances with miniscrews is a simple and effective treatment option to intrude overerupted upper second molars, especially in situations where miniscrews cannot be inserted directly next to the second molar.
authors.affiliation: Associate Professor, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Cao
authors.forename: Chufeng
authors.initials: C
authors.lastname: Liu
authors.forename: Chunxian
authors.initials: C
authors.lastname: Wang
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Yang
authors.forename: Peijia
authors.initials: P
authors.lastname: Duan
authors.forename: Chenrong
authors.initials: C
authors.lastname: Xu
mesh_terms: D001863:Bone Screws; D003722:Dental Alloys / Q000737:chemistry; D005260:Female; D006801:Humans; D008437:Maxilla / Q000473:pathology; D008875:Middle Aged; D008904:Miniaturization; D008963:Molar / Q000473:pathology; D008964:Molar, Third / Q000473:pathology; D009532:Nickel / Q000737:chemistry; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D014025:Titanium / Q000737:chemistry; D014078:Tooth Eruption; D014087:Tooth Movement Techniques / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome
chemical_list: D003722:Dental Alloys; C040654:titanium nickelide; D009532:Nickel; D014025:Titanium
keywords: Overerupted; intrusion; miniscrew