Shear Bond Strength of Orthodontic Brackets and Disinclusion Buttons: Effect of Water and Saliva Contamination

Sfondrini, Maria Francesca; Fraticelli, D; Gandini, Paola; Scribante, Andrea

doi:10.1155/2013/180137

Cited by 11 publications

(6 citation statements)

References 24 publications

(44 reference statements)

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“…Specimens were placed so that the bonded cylinder base was parallel to the shear force direction. Specimens were loaded at a crosshead speed of 1 mm/min [ 1 , 17 , 18 ] in an occluso-gingival direction. The maximum load necessary to debond the specimens was recorded in Newton (N) and then converted into MPa as a ratio of Newton to surface area of the cylinder.…”

Section: Methodsmentioning

confidence: 99%

Influence of dentin pretreatment on bond strength of universal adhesives

Poggio

Beltrami

Colombo

et al. 2017

Acta Biomaterialia Odontologica Scandinavica

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Objective: The purpose of the present study was to compare bond strength of different universal adhesives under three different testing conditions: when no pretreatment was applied, after 37% phosphoric acid etching and after glycine application. Materials and methods: One hundred and fifty bovine permanent mandibular incisors were used as a substitute for human teeth. Five different universal adhesives were tested: Futurabond M+, Scotchbond Universal, Clearfil Universal Bond, G-Premio BOND, Peak Universal Bond. The adhesive systems were applied following each manufacturer’s instructions. The teeth were randomly assigned to three different dentin surface pretreatments: no pretreatment agent (control), 37% phosphoric acid etching, glycine pretreatment. The specimens were placed in a universal testing machine in order to measure and compare bond strength values. Results: The Kruskal–Wallis analysis of variance and the Mann–Whitney test were applied to assess significant differences among the groups. Dentin pretreatments provided different bond strength values for the adhesives tested, while similar values were registered in groups without dentin pretreatment. Conclusions: In the present report, dentin surface pretreatment did not provide significant differences in shear bond strength values of almost all groups. Acid pretreatment lowered bond strength values of Futurabond and Peak Universal Adhesives, whereas glycine pretreatment increased bond strength values of G Praemio Bond adhesive system.

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Section: Methodsmentioning

confidence: 99%

Influence of dentin pretreatment on bond strength of universal adhesives

Poggio

Beltrami

Colombo

et al. 2017

Acta Biomaterialia Odontologica Scandinavica

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“…Two hundred bovine permanent mandibular incisors were collected. After extraction, teeth were stored in a solution of 0.1% (weight/volume) thymol [ 11 ]. Inclusion criteria were no cracks, no caries, no rough or irregular buccal surface, and intact enamel [ 12 ].…”

Section: Methodsmentioning

confidence: 99%

“…Subsequently all specimens were then secured in the lower jaw of an universal testing machine (Model 3343, Instron, Canton, MA, USA) and then tested in shear mode (head speed: 1 mm/min) [ 11 ]. The bonding surface of the brackets remained perpendicular to the horizontal plane and parallel to the direction of the force to be applied, in an effort to minimize peel and maximize shear during testing [ 8 , 9 , 13 ].…”

Section: Methodsmentioning

confidence: 99%

Dental Hygiene and Orthodontics: Effect of Ultrasonic Instrumentation on Bonding Efficacy of Different Lingual Orthodontic Brackets

Scribante

Sfondrini

Collesano

et al. 2017

BioMed Research International

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Dental hygienists are often faced with patients wearing lingual orthodontic therapy, as ultrasonic instrumentation (UI) is crucial for oral health. As the application of external forces can lead to premature bonding failure, the aim of this study was to evaluate the effect of UI on shear bond strength (SBS) and on adhesive remnant index (ARI) of different lingual orthodontic brackets. 200 bovine incisors were divided into 10 groups. Four different lingual (STB, Ormco; TTR, Rocky Mountain Orthodontics; Idea, Leone; 2D, Forestadent) and vestibular control (Victory, 3M) brackets were bonded. UI was performed in half of specimens, whereas the other half did not receive any treatment. All groups were tested with a universal testing machine. SBS and ARI values were recorded. Statistical analysis was performed (significance: P = 0.05). TTR, Idea, and 2D lingual brackets significantly lowered SBS after UI, whereas for other braces no effect was recorded. Appliances with lower mesh area significantly reduced their adhesion capacity after UI. Moreover groups subjected to UI showed higher ARI scores than controls. UI lowered SBS of lingual appliances of small dimensions so particular care should be posed avoiding prolonged instrumentation around bracket base during plaque removal. Moreover, UI influenced also ARI scores.

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“…Santos et al, [10] Sfondrini et al, and [11] Nirupama et al [12] concluded that water, saliva, and blood contamination of enamel during bonding procedures lowers the bond strength values.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the shear bond strength of lingual brackets manufactured by three different processes using two different adhesive primers: An in vitro study

Ashtekar

Shetty

Deshpande

et al. 2016

J Indian Orthod Soc

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The most important procedures in orthodontic practice is bonding brackets to tooth enamel. The adhesive force should be enough to keep the bracket in position throughout the orthodontic treatment, but not strong enough to cause damage on its debonding to the enamel. Lopez, as well as Reynolds, suggests that shear strength should be 6-8. [1] Equivalent traction would be about 5 MPa.Since the inception of lingual orthodontics, it was necessary that orthodontist had to think of an optimal straight wire technique because of the reduced interbracket span on the lingual surfaces with its associated biomechanical consequences and the problems encountered while working on the lingual surface and also because of the anatomical irregularities of the teeth on that side. The introduction of computer-aided design/ computer-aided manufacturing (CAD/CAM) technology has made it possible to produce brackets with an adaptable base and with the necessary precision for all lingual surfaces, also it became obvious that there was a need for indirect bonding involving bracket positioning on cast models. Three popular indirect bonding systems are the Torque Angulation Reference Guide (TARG), Class and Pacon systems.Shear bond strength (SBS) is the main factor, which has to be considered in the evolution of bonding materials. The bond strength of the orthodontic bracket must be able to withstand the forces applied during the orthodontic treatment.

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Shear Bond Strength of Orthodontic Brackets and Disinclusion Buttons: Effect of Water and Saliva Contamination

Cited by 11 publications

References 24 publications

Influence of dentin pretreatment on bond strength of universal adhesives

Influence of dentin pretreatment on bond strength of universal adhesives

Dental Hygiene and Orthodontics: Effect of Ultrasonic Instrumentation on Bonding Efficacy of Different Lingual Orthodontic Brackets

Evaluation of the shear bond strength of lingual brackets manufactured by three different processes using two different adhesive primers: An in vitro study

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