Bond strength comparison of 2 self-etching primers over a 3-month storage period

Trites, Brian; Foley, Timothy F.; Banting, David W.

doi:10.1016/j.ajodo.2003.09.032

Cited by 54 publications

(57 citation statements)

References 28 publications

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“…Besides, the difference in the thermal expansion coefficients of both materials may cause adhesive loss from temperature variations (7). In orthodontics, the number of thermal cycles varies from 500 to 6,000 (5,8,10,11). However, the literature is still inconclusive regarding the number of thermal cycles in orthodontics.…”

Section: Introductionmentioning

confidence: 92%

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

et al. 2017

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The aim of this study was to evaluate the effect of different number of thermal cycles on the shear bond strength (SBS) of metallic orthodontic brackets bonded to feldspathic ceramic by a composite resin. Twenty-five ceramic cylinders were etched with 10% hydrofluoric acid for 60 s and received two layers of silane. Brackets were bonded to the cylinders using Transbond XT and assigned to 5 groups (n=5): Group 1 -Control group (without thermal cycling); Group 2 -500 thermal cycles; Group 3 -5,000 thermal cycles; Group 4 -7,000 thermal cycles and Group 5 -10,000 thermal cycles. Light-activation was carried out by Radii Plus LED. SBS testing was carried out after 24 h of storage in deionized water and thermal cycling (5/55 o C and 30 s dwell time). Five brackets were bonded to each cylinder, totalizing 25 brackets for each group. Data were submitted to one-way ANOVA and Tukey's test (α=0.05). The Adhesive Remnant Index (ARI) was evaluated at 8× magnification. The SBS (MPa) of control group (9.3±0.8), 500 (9.0±0.7) and 5,000 (8.4±0.9) thermal cycles were significantly higher than those after 7,000 (6.8±0.6) and 10,000 (4.9±1.0) thermal cycles (p<0.05). The ARI showed a predominance of Scores 0 (adhesive failure) prevailed in all groups, as shown by the ARI, with increased scores 1 and 2 (mixed failures) for control group and 500 thermal cycles. In conclusion, thermal fatigue may compromise the bonding integration between metallic brackets and ceramic restorations. For in vitro testing, use of at least 7,000 cycles is advised to result in significant fatigue on the bonding interface. I n f l u e n c e o f T h e r m a l C y c l e s N u m b e r o n B o n d S t r e n g t h o f M e t a l l i c B r a c ke t s t o C e r a m i c

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Section: Introductionmentioning

confidence: 92%

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

et al. 2017

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“…Majority of the previous studies demonstrated that the shear bond strength of selfetching systems was significantly less than that of conventional acid-etching systems 1,2,8,[15][16][17][18] , although a few studies indicated no significant differences in bond strength between self-etching and acid-etching systems 7,19,20) . In this study, the debonding forces of two selfetching systems were significantly lower than that of the acid-etching system (SB group), a finding similar to those of previous studies.…”

Section: Discussionmentioning

confidence: 99%

“…The efficacy of a self-etching system in terms of bond strength has been investigated in numerous studies 1,2,7,8,[15][16][17][18][19][20] .…”

Section: Discussionmentioning

confidence: 99%

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Enamel bonding of self-etching and phosphoric acid-etching orthodontic adhesives in simulated clinical conditions: Debonding force and enamel surface

et al. 2009

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This study aimed to evaluate the effectiveness of self-etching and phosphoric acid-etching orthodontic adhesives for enamel bonding in simulated clinical conditions. By using two self-etching (Transbond Plus, TP; Beauty Ortho Bond, BB) and two acid-etching (Transbond XT, TX; Superbond Orthomite, SB) adhesives, orthodontic brackets were bonded on human premolars (n=10 for each adhesive). Ten teeth without bracket bonding, i.e., intact enamel surfaces, were used as control for SEM observation. After 7-day storage in lactic acid solution, bracket debonding force by means of debonding pliers, adhesive remnant index (ARI), and enamel surface morphology were examined. All the tested adhesives exhibited sufficient bond strength for clinical use. The ARI scores were almost the same among the four adhesives. In terms of SEM observation, the enamel surfaces in the control and TP groups showed a slight change after immersion in lactic acid solution, while the BB group showed less change on the enamel surface compared with the TP group. Meanwhile, the two acid-etching adhesives caused considerable demineralization. Taken together, these findings indicated that the action of self-etching systems was evidently more conservative.

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“…Since Buonocore introduced the technique of acidetching enamel surfaces in 1955 1) , adhesive dentistry has revolutionized the way dentistry is practiced today [2][3][4][5] . Dental adhesive systems are embraced and employed by dentists worldwide, and they have become indispensable in the bonding of orthodontic brackets to enamel.…”

Section: Introductionmentioning

confidence: 99%

Inadequate shear bond strengths of self-etch, self-adhesive systems for secure orthodontic bonding

et al. 2012

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This study evaluated the shear bond strength (SBS) of a traditional orthodontic bracket bonding agent (Transbond XT) against two self-etch, self-adhesive systems (Maxcem Elite and Vertise Flow). Sixty premolar teeth and sixty brackets were randomly and equally divided into five groups: Transbond XT (TXT) as the control, Maxcem Elite (ME) without etching, ME with etching (ME/ Etch), Vertise Flow (VF) without etching, and VF with etching (VF/Etch). Respective SBS results of the five groups were 9.86±3.20, 4.67±2.94, 7.82±2.56, 2.55±0.77, and 7.89±1.17 MPa. SBS values of the new self-etch adhesive systems were significantly lower than the traditional etch-and-rinse control (p<0.005). However, no significant differences were found between TXT and the self-adhesives applied with etching (p>0.005). After debonding, ARI scores "0" and "1" were predominant in non-etched ME and VF groups. It was concluded that new self-etch, self-adhesive bonding systems require additional phosphoric acid application to achieve comparable SBS values as the traditional orthodontic bonding agent.

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Bond strength comparison of 2 self-etching primers over a 3-month storage period

Cited by 54 publications

References 28 publications

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

Enamel bonding of self-etching and phosphoric acid-etching orthodontic adhesives in simulated clinical conditions: Debonding force and enamel surface

Inadequate shear bond strengths of self-etch, self-adhesive systems for secure orthodontic bonding

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