title: Lower molar uprighting with miniscrew anchorage: direct and indirect anchorage.
abstract: Lower molar uprighting has been increasingly indicated in clinical orthodontics, mainly because of adult patients with rehabilitation needs. The aim of this study was to determine the success rate of miniscrew use for lower molar uprighting and to compare the use of direct and indirect anchorage. One hundred and eighty-one miniscrews were inserted in 102 rehabilitation patients, with a mean age of 42.24 years. In 71 patients, indirect anchorage was used (116 miniscrews); in the other 31 patients, direct anchorage was employed (65 miniscrews). The choice of direct or indirect anchorage was determined by the orthodontist according to the force system that would be used for the movement and the bone availability. The overall success rate for miniscrews was 90. 05%; 18 miniscrews failed, including 15 that were used as indirect anchorage and 3 that were used as direct anchorage. Considering the results of this study, it can be concluded that both direct and indirect anchorage can be successfully used for molar uprighting.
authors.affiliation: Latin American Institute of Dental Research and Education, Curitiba, Brazil.
authors.forename: Ana Cláudia Moreira
authors.initials: AC
authors.lastname: Melo
authors.affiliation: Latin American Institute of Dental Research and Education, Curitiba, Brazil.
authors.forename: Ricarda
authors.initials: R
authors.lastname: Duarte da Silva
authors.affiliation: Latin American Institute of Dental Research and Education, Curitiba, Brazil.
authors.forename: Roberto Hideo
authors.initials: RH
authors.lastname: Shimizu
authors.affiliation: Gabriel René Moreno University.
authors.forename: Dolores
authors.initials: D
authors.lastname: Campos
authors.affiliation: Latin American Institute of Dental Research and Education, Curitiba, Brazil.
authors.forename: Augusto Ricardo
authors.initials: AR
authors.lastname: Andrighetto
mesh_terms: D000328:Adult; D001863:Bone Screws; D004868:Equipment Failure; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000473:pathology; D008904:Miniaturization; D008963:Molar / Q000473:pathology*; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation / Q000379:methods*; D016382:Orthodontic Appliance Design; D013314:Stress, Mechanical; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods*; D016896:Treatment Outcome