title: [Bone-based anchorage failure].
abstract: The aim of this article is to list the circumstances likely to give rise to failure of orthodontic temporary bone-supported anchorage and, hence, to attempt to define criteria for correct miniscrew usage. Our study was based on a review of the literature and analyses of clinical cases. Our findings show that, with a sound knowledge of the indications for screw selection and positioning and of the insertion protocols combined with a clear understanding of orthodontic mechanics, bone-based anchorage can henceforth provide orthodontists with an essential tool to enable formerly unachievable dental movements and to stabilize unwanted movements, thus making treatment both more reliable and more effective.
authors.affiliation: 1828 avenue Roger Salengro, 92370 Chaville, France.
authors.forename: Grégoria
authors.initials: G
authors.lastname: Mer
authors.affiliation: UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 Place Pasteur, 35000 Rennes, France.
authors.forename: Damien
authors.initials: D
authors.lastname: Brezulier
authors.affiliation: UFR d'Odontologie, Université de Rennes 1, Université Européenne de Bretagne, 2 avenue du Pr Léon Bernard, Bâtiment 15, 35043 Rennes cedex, France - CHU de Rennes, Pôle d'Odontologie et de Chirurgie Buccale, 2 Place Pasteur, 35000 Rennes, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Sorel
mesh_terms: D001696:Biomechanical Phenomena; D001863:Bone Screws; D004868:Equipment Failure; D006801:Humans; D008904:Miniaturization; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation / Q000379:methods*; D016382:Orthodontic Appliance Design; D013314:Stress, Mechanical; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods; D017211:Treatment Failure