Bond strength of orthodontic brackets with new self-adhesive resin cements

Al-Saleh, M. A.; El‐Mowafy, Omar

doi:10.1016/j.ajodo.2008.04.027

Cited by 36 publications

(52 citation statements)

References 12 publications

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“…This finding is in agreement with those of previous studies, which also found that brackets bonded with RelyX Unicem presented lower shear bond strength (15,16). RelyX Unicem does not need a previous surface treatment to its application.…”

Section: Discussionsupporting

confidence: 83%

Effect of Activation Mode on Shear Bond Strength of Metallic Brackets

Correr

Costa

Lucato³

et al. 2013

Braz. Dent. J.

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The aim of this study was to evaluate the shear bond strength (SBS) of metallic orthodontic brackets bonded to bovine teeth using light-activated or chemically activated composite resins. One hundred and twenty bovine mandibular incisors were divided into 6 groups (n=20), according to the bonding materials: Transbond XT (T); Enforce Dual (ED); Enforce chemical (EC); Enforce Light-activated (EL); Concise Orthodontic (C); and RelyX Unicem Capsule (UN). Metallic brackets were positioned and firmly bonded to the teeth. Lightactivation for T, ED, EL and UN was carried out with four exposures on each side of the bracket with 20 s total exposure times using XL2500 (3M ESPE). EC and C were chemically cured. Next, all specimens were stored in deionized water at 37 °C for 24 h. The shear bond strength was carried out at a crosshead speed of 1.0 mm/min. Data were subjected to one-way ANOVA and Tukey's test (α=0.05). The adhesive remnant index (ARI) was evaluated at 8× magnification. C (17.72±4.45) presented significantly higher SBS means (in MPa) than the other groups (p<0.05), followed by EC (11.97±5.77) and ED (10.57±1.32). EL (5.39±1.06) and UN (4.32±1.98) showed the lowest SBS means, while T (9.09±2.56) showed intermediate values. For ARI, there was a predominance of score 0 for EC, C and UN, and score 3 for T, ED and EL. In conclusion, the activation mode influenced the SBS.

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Section: Discussionsupporting

confidence: 83%

Effect of Activation Mode on Shear Bond Strength of Metallic Brackets

Correr

Costa

Lucato³

et al. 2013

Braz. Dent. J.

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“…After bonding, teeth were stored in distilled water at 37ºC for 24 hours [9], and submitted to 500 thermal cycles for 30 seconds in each bath (5°C and 55°C), respectively. Specimens were attached to the Universal Instron® testing machine and submitted to shear stress test by promoting the detachment of brackets at a rate of 0.5 mm / min and 3KN load cell.…”

Section: Methodsmentioning

confidence: 99%

“…After detachment, the buccal surfaces of teeth were analyzed through stereomicroscopic magnifying glass with magnification of 40 times to detect the amount of remaining adhesive and classified according to the Adhesive Remnant Index (ARI) [8][9][10][11][12][13], proposed in 1986 [14], with scores from 0 to 3: Score 0 = no remaining adhesive; Score 1 = less than 50% of the remaining adhesive; Score 2 = more than 50% of the remaining adhesive; Score 3 = 100% of the adhesive on the tooth.…”

Section: Methodsmentioning

confidence: 99%

“…Several studies in literature have analyzed shear tests with metallic and ceramic brackets [9], with recycled brackets [5], with etch self-adhesive systems [10], with metal brackets fixed with composite photo and chemically activated resins [11] and different cleaning methods for orthodontic bracket bases [8]. Based on the above, the aim of this study was to evaluate in vitro the shear strength of metallic brackets.…”

Section: Introductionmentioning

confidence: 99%

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Shear Bond Strength of Metallic Brackets: An In Vitro Stud

Melo¹,

Mn²,

Aol³

et al. 2015

Pesqui. bras. odontopediatria clín. integr.

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Objective: To evaluate in vitro the shear bond strength of metallic brackets. Material and Methods: Forty premolars were divided into four groups (n = 10) according to the type of brackets used (G1: Morelli® Light; G2: Morelli® Standard; G3: Morelli® Max; G4: Abzil® Agile). For bonding, Transbond XT® (3M Unitek) resin was used in all groups. Teeth were embedded in ¾ inch PVC tubes with special plaster stone, perpendicular to the ground. Brackets were fixed on the geometric centers of the exposed crowns. After bonding, teeth were stored in distilled water, incubated at 37ºC for 24 hours and submitted to 500 thermal cycles for 30 seconds in each bath (5°C and 55°C), respectively. The bond strength test was performed on the Instron® mechanical testing machine with 3kg load cell at speed of 0.5mm/min. Data were submitted to statistical analysis through the Statistica® software, version 5.0, by Kruscal Wallis test, ANOVA and Tukey (p< 0.05). Results: There was no statistically significant difference in the ARI scores; whereas for shear resistance, this difference was significant (Averages: G1 -Light: 17.53MPa; G2 -Standard: 18.11MPa; G3 -Max: 29.33MPa; G4 -Agile: 11.37MPa) and G3 showed better performance, compared to the others. All other groups showed similar behavior among themselves. Conclusion: Max bracket had the highest shear strength. Further studies should be conducted to investigate the meshes of brackets tested in this study.

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“…(12) diferentes temperaturas en la cavidad oral. Por ese motivo, distintos autores (7)(8)(9)(13)(14)(15)(16) recomiendan realizar en sus estudios el termociclado, un proceso in vitro que consiste en exponer las muestras a temperaturas extremas para simular las condiciones de la cavidad oral y envejecer la muestra. (8,15) Por ello, el propósito de este estudio fue comparar in vitro, en función al termociclado, la resistencia al cizallamiento y el índice adhesivo remanente (ARI) utilizando los cementos Transbond TM XT (3M Unitek, Monrovia, California, USA) y OrthoCem (FGM, Joinville, Brazil) en dientes de bovino.…”

Section: Marco Teóricounclassified

Resistencia al cizallamiento e indice adhesivo remanente (ARI) de dos cementos ortodónticos fotopolimerizables antes y después del termociclado

Mejía¹,

Jimena²

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Bond strength of orthodontic brackets with new self-adhesive resin cements

Cited by 36 publications

References 12 publications

Effect of Activation Mode on Shear Bond Strength of Metallic Brackets

Effect of Activation Mode on Shear Bond Strength of Metallic Brackets

Shear Bond Strength of Metallic Brackets: An In Vitro Stud

Resistencia al cizallamiento e indice adhesivo remanente (ARI) de dos cementos ortodónticos fotopolimerizables antes y después del termociclado

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