Efficiency of two protocols for maxillary molar intrusion with mini-implants

The aim of this study was to compare the efficiency of two protocols for maxillary molar intrusion with two or three mini-implants. Twenty five maxillary first molars extruded for loss of their antagonists in adult subjects were selected. The sample was divided into two groups, according to the intr...

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Bibliographic Details
Published in:Dental press journal of orthodontics 2016-06, Vol.21 (3), p.56-66
Main Authors: Paccini, Juliana Volpato Curi, Cotrim-Ferreira, Flávio Augusto, Ferreira, Flávio Vellini, Freitas, Karina Maria Salvatore de, Cançado, Rodrigo Hermont, Valarelli, Fabrício Pinelli
Format: Article
Language:English
Subjects:
Adult
Bone screws
Cephalometry
Corrective Orthodontics
Dental Implants
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Female
Humans
Male
Malocclusion - therapy
Maxilla
Orthodontic Anchorage Procedures
Orthodontics
Retrospective Studies
Tooth intrusion
Tooth Movement Techniques - instrumentation
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Summary:The aim of this study was to compare the efficiency of two protocols for maxillary molar intrusion with two or three mini-implants. Twenty five maxillary first molars extruded for loss of their antagonists in adult subjects were selected. The sample was divided into two groups, according to the intrusion protocol with two or three mini-implants. Group 1 consisted of 15 molars that were intruded by two mini-implants. Group 2 consisted of 10 molars intruded by three mini-implants. Changes with treatment were analyzed in lateral cephalograms at the beginning and at the end of intrusion of maxillary molars. Results showed that there was no difference in efficiency for the two intrusion protocols. It was concluded that extruded maxillary molars can be intruded with two or three mini-implants with similar efficiency.
ISSN:2176-9451
2177-6709
2177-6709
2176-9451
DOI:10.1590/2177-6709.21.3.056-066.oar