Results 181 to 190 of about 10,784 (227)
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Endotoxin affinity for orthodontic brackets
American Journal of Orthodontics and Dentofacial Orthopedics, 1999Endotoxin, cell envelope lipopolysaccharide produced by gram-negative bacteria can activate an immune response through a variety of pathways. In addition, it can stimulate bone resorption and reduce the periodontal tissue's healing capacity. Previous studies have documented the affinity of lipopolysaccharide for restorative materials.
K L, Knoernschild +4 more
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Bond strength of rebonded orthodontic brackets
American Journal of Orthodontics and Dentofacial Orthopedics, 1996A study was undertaken to determine the bond strength of brackets rebonded with a no-mix resin system or a paste-paste resin system. The efficacy of plastic conditioner and Enhance adhesion booster (Reliance Orthodontic Products, Inc., Itasca, Ill.) as an aid in rebonding was also evaluated.
F R, Egan +2 more
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Numerical investigation of fixed orthodontic brackets
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2000This paper presents the results of investigations into the mechanical behaviour of fixed orthodontic brackets. Special attention has been paid to the detailed modelling of the interface between the bracket base and an adhesive by which attachment is made to the tooth surface. Properties of this interface were taken as design parameters with the aim of
J, Middleton +4 more
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Biodegradation of the orthodontic bracket system
American Journal of Orthodontics and Dentofacial Orthopedics, 1986Corrosion of the orthodontic appliance may occur in vivo with time. Electrochemical breakdown of corrosion-resistant high nickel and titanium wire can also occur. The use of recycled brackets could possibly accelerate the corrosion process. New and recycled brackets were evaluated in vitro in an artificial saliva system.
R, Maijer, D C, Smith
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Torsional creep of polycarbonate orthodontic brackets
Dental Materials, 1997Polycarbonate materials are known to exhibit creep. The purpose of this study was to investigate torsional creep of polycarbonate orthodontic brackets.Four polycarbonate, one metal, and one ceramic brackets were tested. An in vitro torque apparatus was constructed which applied 2000 g-mm of torque to the bracket slot via a cantilever beam perpendicular
R G, Alkire +3 more
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Material testing of reconditioned orthodontic brackets
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, 2012While all manufacturers of orthodontic brackets label these products for single use, there are commercial providers offering bracket reconditioning (or "recycling"). We conducted this study to investigate the effects of different recycling techniques on material-related parameters in orthodontic brackets, aiming to derive indications for clinical use ...
S, Reimann +5 more
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Self ligating orthodontic bracket
2011The present invention concerns a bracket (1) having a body (2 A) that defines a base (2); a slot (5) formed in said body and designed to accommodate an orthodontic archwire (4), a plurality of wings (3) formed in said body; a plurality of seats (12, 12') formed on one or more of said plurality of wings, each seat defining a bottom (13, 13') and at ...
A. MIRABELLA, LOMBARDO, Luca
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Orthodontic Treatment with Lingually Bonded Brackets
British Journal of Orthodontics, 1984The direct bonding of orthodontic brackets to enamel has greatly improved the aesthetics of fixed appliance orthodontics. A recent development has been the lingual placement of the attachments Which has resulted in none of the mechanics being visible on the anterior teeth.
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Corrosion of resin-bonded orthodontic brackets
American Journal of Orthodontics, 1982The objective was to identify the nature and origin of indelible black and green stains found in enamel after the removal of bonded orthodontic brackets. Several brackets were examined by scanning electron microscopy and energy-dispersive x-ray analysis. Irrespective of the type of bracket or resin, morphologic evidence of corrosion activity was found.
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Aesthetic orthodontic brackets.
Journal of orthodontics, 2005Due to an increasing demand for superior aesthetics during fixed appliance treatment, the use of aesthetic brackets has grown in popularity over recent years. Although often requested by patients, aesthetic brackets are not without their disadvantages.
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