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Orthodontic skeletal anchorage using a palatal external plate

Name: Orthodontic skeletal anchorage using a palatal external plate
Keywords: Adult, Male, Palate, Hard, Titanium, Palatal Expansion Technique, Adolescent, Tooth Movement Techniques, Bone Screws, Malocclusion, Angle Class II, Middle Aged

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2014Publisher:Informa UK LimitedJournal:Journal of Orthodontics, volume 41, pages 53-62 (issn: 1465-3125, eissn: 1465-3133,

Authors: Kenji Fushima; Masaru Kobayashi;

doi: 10.1179/1465313313y.0000000069

pmid: 24671290

Orthodontic skeletal anchorage using a palatal external plate

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Abstract

We have developed the Anchor-Lock external plate system, which is fitted on the palate for the purpose of orthodontic skeletal anchorage. The aim of this study was to introduce the Anchor-Lock and assess its success rate. The Anchor-Lock is composed of titanium screws of 2·0-mm diameter and a titanium plate of 1·0-mm thickness. The external plate is rigidly interlocked with the heads of the screws, which are implanted trans-mucosally into palatal bone. Three types of Anchor-Lock are available. These were applied to 137 orthodontic patients (104 females and 33 males) aged 10-54 years. Two types of plate were used, a straight-shaped plate applied to the hard palate and to the anterior palate and a double-Y-shaped plate applied after tooth-borne rapid maxillary expansion. Success rate of the Anchor-Lock was 92·0% overall. No significant difference in success rate was found by age or sex of patients. Type or screw length of the Anchor-Lock did not affect success rate significantly. Success rate was significantly increased by the use of the surgical stent. The Anchor-Lock was effectively applied to distalize and/or intrude the upper molars. The Anchor-Lock system appears suitable for clinical use as an alternative to conventional screw- and plate-type orthodontic implants.

Related Organizations

Kanagawa Dental University
Japan
Kanagawa Dental College
Japan

Keywords

Adult, Male, Palate, Hard, Titanium, Palatal Expansion Technique, Adolescent, Tooth Movement Techniques, Bone Screws, Malocclusion, Angle Class II, Middle Aged, Dental Materials, Treatment Outcome, Maxilla, Orthodontic Anchorage Procedures, Humans, Orthodontic Appliance Design, Female, Stents, Child, Bone Plates

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