Effect of phosphoric acid etching on the shear bond strength of two self-etch adhesives

Sabatini, Camila

doi:10.1590/1678-7757201302370

Cited by 36 publications

(33 citation statements)

References 20 publications

(44 reference statements)

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“…On the other hand, the composition of dentin (which contains more water and organic substances) and its tubular structure (containing the cytoplasmic extensions of odontoblasts, varying in quantity and diameter, both of which increase with increasing proximity to the pulp) make bonding to dentin a challenge [2][3] . Acid etching of dentin may cause excessive exposure of the collagen fiber meshwork and thus limit the capacity for monomer infiltration to its fullest extent [4][5][6] . Collagen not embedded in monomers is susceptible to degradation, which can culminate in bond failure and reduce clinical longevity [7][8] .…”

Section: Introductionmentioning

confidence: 99%

Bond strength to dentin of total-etch and self-etch adhesive systems

Santos

Lima

Pontes

et al. 2014

RGO, Rev. Gaúch. Odontol.

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Objective To assess the bond strength to dentin of the Single Bond (3M ESPE) and XP Bond (Dentsply) total-etch and Adper SE Plus (3M ESPE) self-etch adhesive systems. MethodsFifteen healthy human third molars were randomly allocated across three different groups of five teeth each according to the adhesive system. The occlusal portion of each tooth was removed under refrigeration using a flexible diamond disc (EXTEC, Enfield, CT, USA) down to an area of dentin that did not reveal enamel, as confirmed under a 40X stereo microscope (Ramsor, São Paulo, Brazil RESUMO ObjetivoAvaliar o grau de resistência de união à dentina dos sistemas adesivos de condicionamento ácido total Adper Single Bond (3M ESPE) e XP Bond (Dentsply) e autocondicionante Adper SE Plus (3M ESPE). MétodosQuinze terceiros molares humanos hígidos foram utilizados, divididos aleatoriamente em três grupos de cinco dentes cada, conforme o adesivo que seria utilizado. A porção oclusal foi removida com o auxílio de um disco flexível diamantado sob refrigeração, até expor uma área de dentina que não apresentasse ilhas de esmalte, comprovado em lupa esterioscópica em aumento de 40X. A smear layer foi padronizada em lixa d'água n°600. Na sequência os sistemas adesivos foram aplicados conforme as recomendações do fabricante, exceto o Adper SE Plus que teve seu tempo de polimerização triplicado. Sobre os dentes preparados foram construídos blocos de resina composta com 5mm de altura. As amostras foram armazenadas por 24 horas a 37°C em água destilada. Utilizando o disco flexível diamantado, foram obtidos corpos de prova com formato de palitos com área adesiva menor que 1mm². Em seguida o teste de microtração foi realizado numa Máquina de Ensaios Universal numa velocidade de 0,5 mm/min. Foram utilizados o teste ANOVA e comparações pareadas de Tukey. ResultadosOs valores da resistência de união para cada sistema adesivo em Mpa foram: 96,24 (XP Bond); 72,39 (Adper Single Bond) e 49,91 (Adper SE Plus). ConclusãoDessa forma, em relação à resistência de união à dentina, os adesivos convencionais apresentaram desempenho superior ao autocondicionante. Bond strength to dentin of total-etch and self-etch adhesive systemsResistência de união à dentina de sistemas adesivos convencionais e autocondicionante

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Section: Introductionmentioning

confidence: 99%

Bond strength to dentin of total-etch and self-etch adhesive systems

Santos

Lima

Pontes

et al. 2014

RGO, Rev. Gaúch. Odontol.

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“…This was also in agreement with Santos et al, 2014, 12 who claimed that dentin etching limits the capability for monomer infiltration to its full extent as it excessively exposes the collagen fiber network, 45,74,75 making it vulnerable to degradation and ends in bond failure and reduction of clinical longevity. 76,77 Muñoz et al, 2013, 44 also agreed as they reported that the ER approach results in increased demineralization and creation of a HA depleted, collagen-rich, network, 24,78,79 thus raising the jeopardy of nanoleakage. 20,[80][81][82] Mena-Serrano et al, 2013, 83 did not agree with the results of the current study as they found that the behavior of the universal adhesives is not affected by the bonding approach at 6 months.…”

Section: Discussionmentioning

confidence: 86%

Effectiveness of two universal adhesives using two different bonding approaches

Abu-Nawareg

Basheer

2018

Egyptian Dental Journal

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Objectives:The aim of the current study was to evaluate the resin-dentin micro-tensile bond strength (μ-TBS) using 2 types of universal adhesives with etch-and-rinse and self-etch approaches after 24 hours and 6 months of water storage. Materials and Methods:A total of 20 extracted non-carious human molars were used in this study. Teeth were equally and randomly divided into 2 groups (N= 10 teeth) according to the type of adhesive used; Group I; Adhese® Universal and Group II; Single Bond Universal. Each group was further subdivided into 2 equal subgroups (n=5 teeth) according to the bonding approach used; Subgroup A; using the self-etch (SE) approach and Subgroup B; using the etch-and-rinse (ER) approach. After bonding, each tooth was built up by resin composite, cut into sticks (0.9 mm x 0.9 mm) and stored in distilled water at 37˚C for 24 hours and 6 months. Then, each stick was stressed under tension until failure using a simplified universal testing machine at a crosshead speed of 1 mm/min. Data were statistically analyzed using One-Way ANOVA, Two-Way ANOVA and Tukey HSD Tests. After μ-TBS testing, all debonded surfaces were observed using a stereomicroscope at 50X magnification to determine the modes of failure, which were categorized as adhesive, cohesive or mixed failure. Results:After 24 hours of water storage, there was no significant difference between the μ-TBS exhibited by Adhese Universal using both SE and ER approaches while both approaches differed significantly when using Single Bond Universal (P=0.0003). Furthermore, there was no significant difference when comparing the μ-TBS means of SE groups or ER groups of both adhesive systems. After 6 months of water storage at 37˚C, there was a significant decrease in the μ-TBS values of all groups (p<0.0001) except when Adhese Universal was used with SE approach, there was no difference between the 24 h and the 6 month-groups (p=0.1449). The failure mode analysis was consistent with the μ-TBS test results as the number of adhesive failures increased with decreased bond strength values. Conclusions:When bonding resin-based composite restoratives to dentin, a separate acidetching step is not required when using Adhese Universal, but it is preferred with Single Bond Universal adhesive. Aging markedly contributes to bond degradation of universal adhesives.

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“…Adhesive and mixed fracture patterns are normally associated with satisfactory bond strength, which in turn, are related to long-lasting restorations. 26,27…”

Section: Discussionmentioning

confidence: 99%

Influence of Prolonged Bleaching with 4% Hydrogen Peroxide Containing Calcium and Different Storage Times on the Bond Strength to Enamel

Santos¹,

Baia²,

Ribeiro³

et al. 2019

The Journal of Contemporary Dental Practice

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Aims:To assess the influence of different bleaching protocols on the bond strength to enamel. Materials and methods:In this laboratory experiment were used forty sound bovine incisors were divided into five groups. G1: No bleaching (control). G2: 14 days bleaching with 4% hydrogen peroxide containing calcium (4% HP+Ca 2+ ) (2 hours/ day) and 24 hours of artificial saliva (AS) storage. G3: 14 days bleaching with 4% HP+Ca 2+ (2 hours/day) and 7 days storage in AS. G4: 28 days bleaching with 4% HP+Ca 2+ (2 hours/day) and 24 hours storage in AS. G5: 28 days bleaching with 4% HP+Ca 2+ (2 hours/day) and 7 days storage in AS. Following storage times, composite resin cylinders were built upon the enamel surfaces and tested for micros hearing. For statistical analysis, two-way ANOVA and Tukey's test was applied to the data (p ≤0.05), for it was evaluated different times of bleaching and stored in artificial saliva. Results:The highest mean was observed in G1 (14.61 MPa), and the lowest in G4 (9.22 MPa). Compared to the negative control (G1), no differences were found in 14 days bleaching and the same between G2 and G3 (p ≥0.01). However, in 28 days bleaching, the effects of the storage periods (24 hours and 7 days) were significantly different (p ≤0.05), besides G4 and G5 were statistically different from G1. Conclusions:Extended bleaching time (28 days) decreased the bond strength, independently of storage time in AS.Clinical significance: If adhesive procedures are required after extended at-home bleaching they may need to be delayed for at least for 7 days for the enamel adhesion ability to recover.

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Effect of phosphoric acid etching on the shear bond strength of two self-etch adhesives

Cited by 36 publications

References 20 publications

Bond strength to dentin of total-etch and self-etch adhesive systems

Bond strength to dentin of total-etch and self-etch adhesive systems

Effectiveness of two universal adhesives using two different bonding approaches

Influence of Prolonged Bleaching with 4% Hydrogen Peroxide Containing Calcium and Different Storage Times on the Bond Strength to Enamel

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