Comparative bonding ability to dentin of a universal adhesive system and monomer conversion as functions of extended light curing times and storage

Sampaio, Paula Costa Pinheiro; Kruly, Paula de Castro; Ribeiro, Clara Cabral; Hilgert, Leandro Augusto; Pereira, Patrícia; Scaffa, Polliana Mendes Cándia; Hipólito, Vinícius Di; D’Alpino, Paulo Henrique Perlatti; Garcia, Fernanda Cristina Pimentel

doi:10.1016/j.jmbbm.2017.06.033

Cited by 12 publications

(8 citation statements)

References 42 publications

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“…Moreover, mixing monomers and diluents affects not only the bonding dynamics, but also the physical and mechanical properties of the material. 3 , 20 , 21 …”

Section: Discussionmentioning

confidence: 99%

“…Polymeric restorative procedures performed on dental substrates rely essentially on the ability of the currently available dentin bonding systems (DBS) to promote interaction with demineralized dentin via mechanical imbrication or chemical bonding. 1 - 3 Margin restorations on enamel typically exhibit good adhesion characterized by high longevity, which is comparable with that of amalgam restorations. 4 However, the dentin substrate forms a relatively weak bond with the resin due to its complexity and fragility, 5 causing clinical failures related to marginal infiltration and aesthetics.…”

Section: Introductionmentioning

confidence: 98%

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Effect of diode laser irradiation on the bond strength of polymerized non-simplified adhesive systems after 12 months of water storage

et al. 2018

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Objectives:The aim of this in vitro study was to evaluate the bonding strength of non-simplified dentin bonding systems (DBS) to dentin irradiated with a diode laser (970 nm) immediately and after 12 months of water storage following either primer or bond application.Material and methods:The experimental design included three different factors: DBS type [AdperTM Scotchbond Multipurpose (MP) and Clearfil™ SE Bond (CSE)], irradiation [without irradiation - control (C), irradiation after primer application (AP), and irradiation after bond application (AB)], and time [initial (I) and after 12 months of water storage (12 m)]. Sixty sound human third molars (n = 10) were obtained, and their flat occlusal dentin areas were prepared and standardized. Laser irradiation was performed in the contact mode perpendicular to the dental surface over an automatically selected scanning area at a pulse energy of 0.8 W, frequency of 10 Hz, and energy density of 66.67 J/cm2. After 7 days of treatment, the specimens were cut, and half of them were subjected to microtensile testing (500 N/0.05 mm/min), whereas the remaining sticks were examined after 12 months of water storage. The obtained data were analyzed by three-way analysis of variance (ANOVA) followed by a Tukey test (p<0.05). The observed fracture modes were investigated using a portable digital microscope with a magnification of 40x.Results:Among the utilized DBS, MP generally exhibited higher bond strengths, but did not always differ from CSE under similar conditions. The irradiation factor was statistically significant only for the MP/AB groups. After 12 months of storage, all groups demonstrated a significant reduction in the bond strength, whereas the results of fracture analysis showed a predominance of the adhesive type.Conclusions:The laser treatment of non-simplified DBS was not able to stabilize their bonding characteristics after 12 months.

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“…Moreover, mixing monomers and diluents affects not only the bonding dynamics, but also the physical and mechanical properties of the material. 3 , 20 , 21 …”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Effect of diode laser irradiation on the bond strength of polymerized non-simplified adhesive systems after 12 months of water storage

et al. 2018

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“…To this end, understanding the compositional and structural formation as well as the mineral content and organic matrix of dentin is needed to guide the development of improved adhesive materials 1,3,4,8) . Novel materials that consider the interactions between polymers and the dentin under clinical conditions have potential to exhibit enhanced performance 2,6,9,10) .…”

Section: Introductionmentioning

confidence: 99%

MDP-based universal adhesive system irradiated with Er,CR:YSGG: Analysis of its performance up to 6 months

et al. 2021

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This study aimed to analyze the interaction of a MDP-based universal dentin bonding system (DBS) with Er, Cr: YSGG laser irradiation, measuring the microtensile bond strength to dentin over a six-month period. The experimental design involved three factors: DBS (Adper Scotchbond Universal; Clearfil SE Bond, Adper Scotchbond Multipurpose and Adper Single Bond 2), laser (Control and Er, Cr: YSGG), and time (initial-7 days and 6 months). Eighty dentin samples from molars were prepared (n=10) with laser irradiation after primer and DBS application. After 7 days, were subjected to micro tensile bond strength test. The data were analyzed by three-way ANOVA and Tukey tests (p<0.05). Both DBS and laser significantly affected the bonding performance and their interaction was statistically significant (p=0.0194). The self-etching mode of the MDP-based universal DBS maintained the bond strength on dentin irradiated with ER, Cr: YSGG after 6 months, while bonding with all other DBS deteriorated.

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“…Demineralized collagen fibrils will be vulnerable to long-term hydrolytic or enzymatic degradation, leaving voids or demineralized nano-channels within the hybrid layer [14]. In order to enhance the quality of the resin-dentin interface, several studies focused to counteract enzymatic biodegradation by the use of matrix metalloproteinases (MMPs) inhibitors at the poorly resin-infiltrated hybrid layer [15][16][17][18][19][20][21] apart from other proposed clinically applicable strategies [22][23][24][25][26][27][28]. Since higher mechanical properties and lower biodegradation rates of collagen are desired, usage of collagen crosslinking agents in adhesive practices have gained interest [8,9,19,21].…”

Section: Introductionmentioning

confidence: 99%

Reinforced Universal Adhesive by Ribose Crosslinker: A Novel Strategy in Adhesive Dentistry

et al. 2021

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Enzymatic biodegradation of demineralized collagen fibrils could lead to the reduction of resin–dentin bond strength. Therefore, methods that provide protection to collagen fibrils appear to be a pragmatic solution to improve bond strength. Thus, the study’s aim was to investigate the effect of ribose (RB) on demineralized resin–dentin specimens in a modified universal adhesive. Dentin specimens were obtained, standardized and then bonded in vitro with a commercial multi-mode adhesive modified with 0, 0.5%, 1%, and 2% RB, restored with resin composite, and tested for micro-tensile bond strength (µTBS) after storage for 24 h in artificial saliva. Scanning electron microscopy (SEM) was performed to analyze resin–dentin interface. Contact angles were analyzed using a contact angle analyzer. Depth of penetration of adhesives and nanoleakage were assessed using micro-Raman spectroscopy and silver tracing. Molecular docking studies were carried out using Schrodinger small-molecule drug discovery suite 2019-4. Matrix metalloproteinases-2 (MMP-2) and cathepsin-K activities in RB-treated specimens were quantified using enzyme-linked immunosorbent assay (ELISA). The significance level was set at α = 0.05 for all statistical analyses. Incorporation of RB at 1% or 2% is of significant potential (p < 0.05) as it can be associated with improved wettability on dentin surfaces (0.5% had the lowest contact angle) as well as appreciable hybrid layer quality, and higher resin penetration. Improvement of the adhesive bond strength was shown when adding RB at 1% concentration to universal adhesive (p < 0.05). Modified adhesive increased the resistance of collagen degradation by inhibiting MMP-2 and cathepsin-K. A higher RB concentration was associated with improved results (p < 0.01). D-ribose showed favorable negative binding to collagen. In conclusion, universal adhesive using 1% or 2% RB helped in maintaining dentin collagen scaffold and proved to be successful in improving wettability, protease inhibition, and stability of demineralized dentin substrates. A more favorable substrate is created which, in turn, leads to a more stable dentin-adhesive bond. This could lead to more advantageous outcomes in a clinical scenario where a stable bond may result in longevity of the dental restoration.

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Comparative bonding ability to dentin of a universal adhesive system and monomer conversion as functions of extended light curing times and storage

Cited by 12 publications

References 42 publications

Effect of diode laser irradiation on the bond strength of polymerized non-simplified adhesive systems after 12 months of water storage

Effect of diode laser irradiation on the bond strength of polymerized non-simplified adhesive systems after 12 months of water storage

MDP-based universal adhesive system irradiated with Er,CR:YSGG: Analysis of its performance up to 6 months

Reinforced Universal Adhesive by Ribose Crosslinker: A Novel Strategy in Adhesive Dentistry

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