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Showing 1 to 20 of 22 for “"Orthodontic Brackets"”.
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Investigation of frictional resistance on orthodontic brackets when subjected to variable moments
Friction and binding occur in orthodontics during sliding mechanics. This paper evaluated the influence of a variable moment, simulating mastication, placed at the bracket-archwire interface to determine its effects on friction. Friction of self-ligating brackets were also compared to stainless …
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In vitro investigation into bond strength of metal and ceramic orthodontic brackets
… in vitro bond strength of metal and ceramic orthodontic brackets when using etch and separate primer, or self-etching primer (SEP) 2. To assess remaining adhesive following removal of orthodontic bracket METHOD: 180 previously extracted teeth were randomly allocated to one of six test groups. …
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Clinical Evaluation of Glass Ionomer Cement as an Adhesive for the Bonding of Orthodontic Brackets
… formation. This cement would be valuable in orthodontics if it proved to have adequate adhesive properties. Therefore, this study was designed to determine if there is a significant difference in the failure rate of brackets attached to teeth using a glass ionomer cement, Ketac-fil, and the …
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Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness
… the effect of primer protocol for metal orthodontic brackets bonded to zirconia ceramic and resulting shear bond strength (SBS), adhesive remnant index (ARI), and debonded and polished zirconia surface roughness. Methods: Zirconia specimens were milled, glazed, embedded in acrylic resin …
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Effect of refrigerant spray on orthodontic composite resin-bracket debond strength and associated adhesive remnant index
… of refrigerant spray and crosshead speed on orthodontic composite resin shear debond strength and Adhesive Remnant Index (ARI) after bond failure. Orthodontic brackets were bonded to forty paired extracted mandibular third molars. Pairs were divided into experimental and control groups, with …
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The Effect of Pre-Cure Bracket Movement on the Shear Bond Strength of Metal Brackets
… strength of bracket movement after seating the brackets and before light curing has not been reported. The purpose of this study was to determine the effect of linear and rotational pre-cure bracket movement on the shear bond strength of orthodontic brackets. 100 extracted human maxillary …
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Orthodontic Bracket Bond Strength Using Self-Etching Primer With or Without Pumice or Acid Etch Pretreatment
… study was to compare the shear bond strength of orthodontic brackets to enamel in four bonding protocols: SEP without prior pumicing (None), Pre-etch and SEP without prior pumicing (Pre-etch), control: SEP with prior pumicing (Pumice), and Pre-etch and SEP with prior pumicing (Both). 80 extracted …
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Handling Characteristics and Colloidal Stability of an Orthodontic Sealant Containing Microcapsules
Patients treated with orthodontic brackets face an increased risk of biofilm accumulation which can lead to white spot lesions and ultimately cause cavitation. The application of an orthodontic sealant would act as a physical barrier between the bracket and superficial enamel. The sealant …
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Effectiveness of Resin Infiltration and Mi Paste Cpp-Acp in Masking White Spot Lesions
The development of decalcification around orthodontic brackets and bands, commonly called white spot lesions (WSLs), is often observed in patients with poor oral hygiene during treatment (Behnan et al., 2010, Rodgers et al., 2010). In many instances, these WSLs continue to be visible after the …
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Intraoral Corrosion of Self-ligating Metallic Brackets and Archwires and the Effect on Friction
… there was a relationship between corrosion of orthodontic alloys and friction via scanning electron microscopic qualitative analysis. Orthodontic brackets and 0.019 x 0.025 inch stainless steel archwires were collected and divided into three groups of n=10: used bracket and used wires (UBUW), …
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Debonding and adhesive remnant cleanup: an in vitro comparison of bond quality, adhesive remnant cleanup, and orthodontic acceptance of a flash-free product
Background: New orthodontic products are continuously introduced to clinicians seeking more practical and efficient solutions for their practice. One such product is a new flash-free adhesive for orthodontic bracket bonding, which has been introduced to the market recently. This new adhesive needs …
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Coated and Uncoated Nickel-Titanium Archwires: Mechanical Property and Surface Topography Response to a Simulated Oral Environment with and without Bracket-Related Load Deflection Induced Stress
… of coating in areas where the archwire contacted orthodontic brackets. This did not occur in wires not exposed to bracket related load deflection. The change in mechanical properties, specifically unloading forces, of coated archwires compared to uncoated archwires of the same size could be …
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Bioactive capabilities explored in polyurethane microcapsules and the inclusion into dental sealants and cement pastes
… that microencapsulated water has on charging an orthodontic cement and pit and fissure sealant with fluoride by toothbrushing, demonstrate the slow, sustained release of calcium, fluoride and phosphate ions from these materials initially formulated with remineralizing agents, examine the effect …
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Comparison of Two Orthodontic Sealants in Prevention of Enamel Demineralization : An In-Vitro and In-Vivo Study
Introduction: Enamel demineralization adjacent to orthodontic brackets is one of the risks associated with orthodontic treatment. Among the techniques utilized to prevent demineralization, application of orthodontic sealants is widely used to provide mechanical coating and fluoride release for the …
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Is the 0.018-inch or the 0.022-inch bracket slot system more effective for the levelling and alignment stage of orthodontic treatment?
… and 0.022-inch conventional pre-adjusted orthodontic bracket slot systems in terms of the effectiveness of levelling and alignment stage of orthodontic treatment.<br/><br/>Design: Prospective, multi-centre randomised clinical trial.<br/><br/>Setting: This was undertaken in the secondary …
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A Comparative Study of Conventional-Ligating and Self-Ligating Bracket Systems
… the frictional resistance of four self-ligating brackets and two conventional bracket systems using two different types of orthodontic arch wires in both wet and dry fields. Six different brands of upper right central incisor brackets with 0.018-in slots were evaluated. Group A : self-ligating …
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A Frictional Evaluation of a New Surface-Modified Titanium Orthodontic Bracket
… mechanics is a popular method of moving teeth orthodontically. Sliding mechanics refers to the guiding of a tooth by means of the bracket slot along an archwire in response to some applied force. This concept of tooth movement is subject to both static and kinetic friction. An accurate …
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The Comparison of the Tensile, Shear-Peel, and Torque Orthodontic Bond Strength Test Methods Performed on a Resin and Two Glass Ionomer Cements
… into three groups. Stainless steel incisor brackets were bonded to the prepared facial surfaces, and the specimens were stored in deionized water at 37° C for 38 hours. The specimens were then tested to failure using three loading modes. The bracket and enamel surfaces of each specimen were …
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Self-ligating vs. Conventional ligating orthodontic bracket systems (smile aesthetics perspective): Data from randomised clinical trials
… the smile aesthetics created by the use of two orthodontic bracket systems (self-ligating vs. conventional ligating) as a part of analysing secondary outcomes of two randomised clinical trials comparing between these two systems.<b><br/></b><b><br/></b><b>Methodology</b>: The assessment of smile …
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