2013
DOI: 10.1590/1678-7757201302370
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Effect of phosphoric acid etching on the shear bond strength of two self-etch adhesives

Abstract: Objective:To evaluate the effect of optional phosphoric acid etching on the shear bond strength (SBS) of two self-etch adhesives to enamel and dentin.Material and Methods:Ninety-six bovine mandibular incisors were ground flat to obtain enamel and dentin substrates. A two-step self-etch adhesive (FL-Bond II) and a one-step self-etch adhesive (BeautiBond) were applied with and without a preliminary acid etching to both the enamel and dentin. The specimens were equally and randomly assigned to 4 groups per substr… Show more

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Cited by 35 publications
(32 citation statements)
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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%
“…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%
“…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%
“…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%