Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin

Flury, Simon; Lussi, Adrian; Peutzfeldt, Anne

doi:10.1155/2017/1207208

Cited by 11 publications

(5 citation statements)

References 42 publications

(51 reference statements)

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“…Regarding long-term bond strength results on eroded dentin, Flury et al (2017) highlights that the hybrid layer is subject to accelerated degradation when compared to sound dentin. This was also proven by Siqueira et al, (2018) on a laboratory study, demonstrating that after a 2-year water-storage eroded specimens presented higher bond strength results if they were pre-treated with a cross-linking agent [ 9 , 41 ]. As speculated by Zimmerli et al (2012) and Costa et al (2019), these results were a consequence of the accelerated enzymatic and hydrolytic degradation of unpolymerized monomers and residual collagen fibers, thus contributing to a poor and less successful hybrid layer [ 40 , 42 ].…”

Section: Discussionsupporting

confidence: 57%

“…In fact, Tay and Pashley (2004) and Ururahy et al (2017) emphasize the presence of enlarged dentinal tubules, invaded by thick and porous peri-tubular dentin, which can lead to tubule occlusion and an overlying hypermineralized layer [ 10 , 39 ]. Considering these alterations, authors describe eroded dentin as a substrate with a negative impact on monomer infiltration [ 13 , 40 ], confirmed in laboratory studies where sound dentin demonstrated significantly higher bond strength results when compared to eroded dentin [ 16 , 34 , 40 , 41 ]. Regarding long-term bond strength results on eroded dentin, Flury et al (2017) highlights that the hybrid layer is subject to accelerated degradation when compared to sound dentin.…”

Section: Discussionmentioning

confidence: 97%

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Investigating a Commercial Functional Adhesive with 12-MDPB and Reactive Filler to Strengthen the Adhesive Interface in Eroded Dentin

et al. 2021

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To compare the adhesive interface of eroded dentin formed by a functional dental adhesive and a gold standard strategy, by testing microtensile bond strength (μTBS), hardness/elastic modulus. Permanent sound human molars were randomly allocated to four experimental groups, all subject to artificial erosion (0.05 M citric acid; 3× daily, 5 days). Groups included control Clearfil SE Bond 2 (CFSE), and experimental group Clearfil SE Protect (CFP), at two different time points-immediate (24 h) and long term (3 months–3 M). Samples were sectioned into microspecimens for μTBS (n = 8) and into 2-mm thick slabs for nanoindentation assays (n = 3). Groups CFSE_3M and CFP_3M were stored in artificial saliva. Statistical analysis included two-way ANOVA for μTBS data, while hardness/modulus results were analyzed using Kruskal–Wallis H Test (significance level of 5%; SPSS v.27.0). Although no significant differences were found between mean μTBS values, for different adhesives and time points (p > 0.05), a positive trend, with μTBS rising in the CFP_3M group, was observed. Regarding hardness, no significant differences were seen in the hybrid layer, considering the two variables (p > 0.05), while the reduced elastic modulus rose in CFP_3M when compared to 24 h. Thus, CFP shows similar mechanical and adhesive performance to CFSE in eroded dentin, although it may comprise promising long-term results. This is advantageous in eroded substrates due to their increased enzymatic activity and need for remineralization.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 97%

Investigating a Commercial Functional Adhesive with 12-MDPB and Reactive Filler to Strengthen the Adhesive Interface in Eroded Dentin

et al. 2021

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“…All studies followed a specific erosive protocol but all showed differences. Most authors preferred citric acid [ 33 , 34 , 36–39 , 41 , 43 , 45 , 46 , 48 , 55 , 57 , 58 ], in most cases at a 1% concentration. Yet, not only the concentrations differed from one another but every study had a distinct management of the erosive cycling applied.…”

Section: Discussionmentioning

confidence: 99%

“…Eleven studies which used bovine teeth as substrate in alternative to human teeth were identified [ 13 , 36 , 40 , 43 , 45 , 48 , 49 , 51 , 53 , 55 , 58 ]. Past studies have documented that bonding to bovine teeth is comparably different than to human teeth, and results have to be cautiously interpreted [ 72 , 73 ].…”

Section: Discussionmentioning

confidence: 99%

Analysis of laboratory adhesion studies in eroded enamel and dentin: a scoping review

Costa

Delgado

Melo

et al. 2021

Biomaterial Investigations in Dentistry

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Aim To summarize and report laboratory studies of adhesion in eroded substrates, which used bond strength as an outcome measure. To determine the strategies available to overcome bonding difficulties, the quality and consistency of the methodology and to find evidence gaps. Materials and Methods The present review followed PRISMA-ScR guidelines. A search was conducted on PubMed/Medline, Scopus and EMBASE (Ovid) databases to identify published peer-reviewed papers (2010–2020). For final qualitative synthesis, 29 articles were selected which respected the inclusion criteria. Data charting was carried out, independently, by two reviewers and quality assessment of the articles was performed. Results The primary studies included fall into four major categories: comparison of restorative materials and application modes, enzymatic inhibitors, surface pretreatments or remineralization strategies. Most studies found evaluated dentin (76%), while 17% evaluated enamel, and 7% evaluated both substrates. The majority of the studies reported an effective intervention (83%). Bond strength to eroded dentin is significantly reduced, while in enamel erosion is beneficial. The bond strength to eroded dentin is material-dependent and favored in systems containing 10-MDP. Great disparities among the erosion models used were found, with citric acid in different concentrations being the preferred method, although standardization is lacking. Conclusions Adhesives containing 10-MDP show beneficial results in eroded dentin, and surface preparation methods should be considered. Studies which evaluated adhesion to eroded enamel/dentin show high heterogeneity in what concerns aims and methodology. Strategies that focus on remineralizing dentin and strategies to protect bond longevity in this substrate require further research.

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“…It is uncertain how the chemical and microstructural changes presented in the dentin substrate due to erosive challenge can affect the long-term adhesive materials performance. Some studies suggest the bond strength quality impairment caused by an eroded dentin, regardless the adhesive system [25,[33][34][35]. However, the best option to restore eroded tooth structure, still being the adhesive systems combined with composite resin because these materials presented a greater acid-resistance in comparison with GIC and resin modified GIC [33].…”

Section: Discussionmentioning

confidence: 99%

Effect of erosive challenge and cigarette smoke on dentin microhardness, surface morphology and bond strength

Ferretti

Theobaldo

Pereira

et al. 2020

BDS

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Objective: This study aimed to evaluate the surface microhardness and morphology, as well as the microshear bond strength of a self-etching adhesive (Clearfil SE, Kuraray) to eroded dentin, exposed or not to cigarette smoke. Forty dental crowns were divided into 4 groups (n = 10): no treatment (control) (C); erosion (E); erosion + cigarette smoke exposure (ES); cigarette smoke exposure (S). Samples were prepared through third molars polishing until dentin exposure, followed by crown section. Erosive cycles were performed 5 times/day for 30 s at 60 min intervals. Cigarette smoke was produced with twenty cigarettes/day, during 5 days. Microhardness was evaluated initially and after the treatments. Microshear bond strength was tested after the treatments and dentin restoration with flow composite. Failure patterns and dentin morphology was evaluated by Scanning Electron Microscopy. Microshear bond strength data was submitted to two-way ANOVA, microharness test was adjusted by gamma distribution to be a non-parametric analyses (p=0.05), and surface morphology as qualitative analyses. Loss percentage of microhardness was observed only in groups submitted to erosion. Bond strength was statistically similar between all groups. The most prevalent failure pattern was of adhesive type. Morphological analysis of dentin showed obliterated tubules in groups submitted to cigarette smoke exposure. Cigarette smoke exposure did not promote any effect in the percentage of microhardness loss, as in sound dentin as in eroded dentin. Cigarette smoke, erosion, and association of both, did not alter the bond strength of self-etching adhesives to dentin.KeywordsBond strength; Cigarette Smoke; Dental erosion; Microhardness; Self-etching adhesives.

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Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin

Cited by 11 publications

References 42 publications

Investigating a Commercial Functional Adhesive with 12-MDPB and Reactive Filler to Strengthen the Adhesive Interface in Eroded Dentin

Investigating a Commercial Functional Adhesive with 12-MDPB and Reactive Filler to Strengthen the Adhesive Interface in Eroded Dentin

Analysis of laboratory adhesion studies in eroded enamel and dentin: a scoping review

Effect of erosive challenge and cigarette smoke on dentin microhardness, surface morphology and bond strength

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