Influence of Organic Acids from the Oral Biofilm on the Bond Strength of Self-Etch Adhesives to Dentin

Amaral, Cristiane Mariote; Correa, Danielly de Sá; Miragaya, Luciana; Silva, Eduardo Moreira da

doi:10.1590/0103-6440201300260

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Because of that, dentin bonding has been the focus in research field for the last twenty years (1). Since dentin is an anisotropic substrate, bond strength achieved in the adhesive layer connecting restorative materials and dentin structure is affected by dentin tubules orientation, tubule densities and the proportion of intratubular and intertubular dentin (2,3).…”

Section: Introductionmentioning

confidence: 99%

Microtensile Bond Strength of Adhesive Systems in Different Dentin Regions on a Class II Cavity Configuration

et al. 2017

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The aim of this study was to evaluate microtensile bond strength (µTBS) of self-etch and etch-and-rinse adhesives systems compared in different dentin regions (central-CD or proximal-PD) in a class II cavity configuration. A class II (mesial-oclusal-distal) cavity configuration was simulated on 20 extracted human third-molars (4 mm wide/3 mm deep). Etch-and-rinse adhesive (Scotchbond Multi Purpose, n=5, SBMP and Optibond FL, n=5, OPFL) and self-etch adhesives (Clearfil SE Bond, n=5, CSE and Optibond XTR, n=5, OPXTR) were applied. Class II restorations were performed by incremental technique and photo-activated (Bluephase/G2). Samples were sectioned to beam shape (1 mm² cross-section), placed on Geraldeli's device for µTBS test (0.5 mm/min cross-head speed). Fracture patterns were analyzed on stereomicroscope and classified as cohesive-resin, adhesive, mixed/resin or mixed/dentin. Samples (n=4) were prepared for scanning electron microscope observation. Data were submitted to one-way ANOVA with Split-Plot arrangement and Tukey's test (α=0.05). There were no statistically significant differences among SBMP, OPFL, CSE and OPXTR on CD (p>0.05). However, on PD for SBMP and OPFL, µTBS values were significantly lower compared to CSE and OPXTR (p<0.05). In all groups, mixed failure pattern was more frequently observed, except for SBMP/CD (adhesive). In class II type cavity configuration, PD location negatively influenced bond strength of etch-and-rinse adhesive systems. Opposite to self-etching adhesives, which presented higher bond strength values compared to etch-and-rinse adhesives in PD.

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Section: Introductionmentioning

confidence: 99%

Microtensile Bond Strength of Adhesive Systems in Different Dentin Regions on a Class II Cavity Configuration

et al. 2017

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Which self-etch acidic composition may result in higher dental bonds at the long-term? A network meta-analysis review of in vitro studies

Fehrenbach¹,

Lacerda‐Santos²,

Machado³

et al. 2022

Journal of Dentistry

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Effect of S. mutans biofilm on the hybrid ceramic-resin cement bond strength assessed by different methods

Mushashe,

Almeida,

Ferracane

et al. 2023

Braz.j. of oral sci.

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Aim: The purpose of this study was to investigate the biofilm effect on the hybrid ceramic-resin cement bond strength (BS) by comparing two methods. Methods: Teeth were distributed into groups (n=5), according to the resin cement (Maxcem Elite-(MC) or NX3 Nexus-(NX)) and degradation method (24h or 7 days in distilled water; 7 or 30 days incubated with biofilm and 30 days in sterile media). Treated surfaces of Vita Enamic blocks (5x6x7mm) were luted to treated or no treated dentin surfaces and light-cured. After 24h, beams were obtained (1x1x10mm) and stored accordingly. The flexural bond strength (FBS) was assessed by four-point bending test. Additional beams were obtained from new teeth (n=5), stored for 24h or 7 days in distilled water, and submitted to a microtensile bond strength (μTBS) assay. Failure modes were determined by scanning electron microscopy (100X). The flexure strength of the cements (n=10) was assessed by a four-point bending test. Data were analyzed by 1 and 2-ways ANOVA, and Tukey’s test (α=0.05). Results: There was no significant difference between the degradation methods for the FBS groups. For the μTBS, the significant difference was as follows: NX 7days > NX 24h > MC 7days = MC 24h. Failure mode was mainly adhesive and mixed, but with an increase of cohesive within cement and pre-failures for the MC groups assessed by μTBS. NX had better performance than MC, regardless of the method. Conclusions: The biofilm had no effect on the materials BS and FBS test was a useful method to evaluate BS of materials with poor performance.

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Influence of Organic Acids from the Oral Biofilm on the Bond Strength of Self-Etch Adhesives to Dentin

Cited by 3 publications

References 21 publications

Microtensile Bond Strength of Adhesive Systems in Different Dentin Regions on a Class II Cavity Configuration

Microtensile Bond Strength of Adhesive Systems in Different Dentin Regions on a Class II Cavity Configuration

Which self-etch acidic composition may result in higher dental bonds at the long-term? A network meta-analysis review of in vitro studies

Effect of S. mutans biofilm on the hybrid ceramic-resin cement bond strength assessed by different methods

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