Bonding efficacy of an acetone/based etch-and-rinse adhesive after dentin deproteinization (original) (raw)
Related papers
Journal of Contemporary Dentistry, 2015
Background: The purpose of this study was to evaluate the shear bond strength (SBS) of two different adhesives to normal and deproteinized dentin at an interval of 24 hours and 6 months. Materials and methods: Sixty human molars were sectioned and embedded in acrylic resin. Enamel was worn out and dentin was exposed over which acid etching was performed and the specimens were divided into 12 groups (n = 10) depending on the adhesive system used, the dentin treatment performed and the length of evaluation. A resin composite was inserted over the prepared area followed by assessment for shear bond strength evaluation. Results: The application of Sodium hypochlorite (NaOCl) signi ficantly increased the SBS values of prime and bond NT but for adper single bond it was decreased. The means values of SBS standard deviation (SD) in MPa for adhesive systems with 5% NaOCI for 60 seconds, 120 seconds and without NaOCl treat ment were: prime and bond NT = 12.48 (1.25), 13.01 (1.00) and 17.74 (4.26) and for adper single bond = 10.92 (1.65), 10.96 (2.45) and 7.57 (1.45). Shear bond strength after storage time of 6 months was decreased significantly. Conclusion: According to the statistical analysis, the results only partly supported the hypotheses and greatly depend on the composition of adhesive system.
PubMed, 2006
Objective: The purpose of this study was to evaluate the microtensile bond strength (mu TBS) of four total-etch adhesives [Excite (EB), Prime&Bond NT (PBNT), Single Bond (SB), and One Coat Bond (OCB)] by comparing them to five self-etching adhesives (Clearfil SE Bond (CSEB), Xeno III (X III), Prompt L-Pop (PLP), AQ Bond (AQB), and Tyrian/One Step plus (TOSP)] at different dentinal areas. In addition the interface between the adhesive resins and dentin was examined using scanning electron microscopy (SEM). Methods and materials: Superficial occlusal dentin of extracted human molars was exposed and finished with wet 800-grit silicon carbide paper. A block of composite resin was then bonded to the molar samples with the above adhesives according to the manufacturers' instructions. After 24 hours in water at 37 degrees C, the specimens were sectioned into 1 mm thick slices and divided into two regional subgroups according to their relationship to pulp tissue using visual criteria: pulp center and pulp periphery. The slices were then trimmed for the microtensile bond test and subjected to a tensile force and crosshead speed of 1 mm/min. Two-way analysis of variance was performed for statistical analyses. In addition the bond strengths for nine adhesive systems for each dentinal area were compared using the Post-Hoc test. The resin-dentin interfaces for each adhesive system were observed under a SEM. Results: Mean mu TBS ranged from (25.2 MPa) for TOSP to (48.9 MPa) for PBNT. The bond strengths of total-etch adhesive systems were not significantly different, and were higher than self-etch adhesive systems, except for CSEB (p<0.05). No significant regional difference was observed for all of the nine adhesive systems (p>0.05). SEM observation showed there is not a standard hybridization for adhesive systems. Conclusion: Different dentinal areas may not exhibit as great an influence on bond strengths using new adhesive systems.
Dentin regional bond strength of self-etch and total-etch adhesive systems
Dental Materials, 2007
d e n t a l m a t e r i a l s 2 3 ( 2 0 0 7 ) 1542-1548 a v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . i n t l . e l s e v i e r h e a l t h . c o m / j o u r n a l s / d e m a Total-etch Bond strength Dentin regions Adhesion a b s t r a c t Objectives. To evaluate the microtensile bond strength (MTBS) of self-etch (with or without H 3 PO 4 -etching) and total-etch bonding systems bonded to different regions of dentin. Methods. Long flat dentin cavity preparations extending from top-crown to root-apex within the same tooth were performed and bonded: using two-step (Clearfil SE Bond/SEB, Resulcin Aqua Prime/RES) and one-step (Etch & Prime 3.0/EP, One-Up Bond F/OUB, Prompt L-Pop/PLP, Solist/SOL and Futurabond/FUT) self-etch adhesives; these same adhesives were also applied following H 3 PO 4 -etching of dentin and finally two more groups were bonded with total-etch adhesives (Single Bond/SB and Prime & Bond NT/PBNT). Build-ups of resin composite were constructed incrementally to ensure sufficient bulk for the MTBS test and the different regions of dentin were identified by painting with different colours on the top of the resin composite. Specimens were sliced into beams and tested in tension. ANOVA and multiple comparisons tests were used (p < 0.05).
Polymers, 2022
The objective was to evaluate the influence of active bonding applications (ABA) for different time intervals after selective dentin etching (SDE) for 3 s on the microtensile bond strength (μTBS) to dentin of two universal adhesive systems (UAs): one containing 2-hydroxyethyl methacrylate (HEMA) (Scotchbond Universal, SBU), and one that was HEMA-free (Prime&Bond Universal, PBU). Dentin bovine specimens were divided into four groups: self-etch as control (SE), SDE + ABA for 15 s (SDE15), SDE + ABA for 20 s (SDE20), and SDE + ABA for 25 s (SDE25). The μTBS test was performed after a water storage of 24 h and 6 months. Scanning electron microscopy (SEM) was used in order to examine the resin–dentin interface. For the PBU, the µTBS was significantly influenced only by the aging factor (p < 0.026). A statistically significant decrease in the µTBS after 6 months of aging was observed only for the SDE15 group. For SBU, µTBS was significantly influenced by the protocol application and th...
Influence of Acid Etching and Universal Adhesives on the Bond Strength to Dentin.
The purpose of this study was to evaluate the influence of the application mode of three universal adhesive systems on interfacial physical properties of indirect composite restorations adhesively cemented to dentin cavities. Seventy-eight bovine lower incisors were selected and a slice of dentin (thickness: 2 mm) between the buccal surface and pulp chamber was obtained for each tooth. Conical cavities were made on this surface. The internal walls of the cavities were then coated with a hydrophilic gel, filled with composite resin and photopolymerized. The dentin/cone sets were divided into 6 groups (n=10) according to type of universal adhesive (TETRI: Tetric N Bond, FUT: Futura Bond U, SBU: Single Bond Universal) and acid etching on dentin (A: with acid etching; WA: without acid etching). The acid etching and the adhesive systems were applied to the surface of the dentin. All composite resin cones were sandblasted (Al 2 O 3 , 20 s) and silanized. After surface treatment, the cones were cemented (RelyX Ultimate) into the dentin cavity and photopolymerized. After thermocycling (10,000 cycles), samples were submitted to marginal adaptation analysis (using caries detector dye), push-out test (0.5 mm/min), and failure mode analysis. Additional samples were prepared for nanoleakage analysis (SEM). The data (MPa) were analyzed by two-way ANOVA and Tukey's post-test (5%). The groups in which the dentin was acid etched showed significantly lower bond strength values in the push-out test (p<0.01). Dentin acid etching significantly reduced the bond strength between universal adhesive systems and dentin in indirect restorative procedures.
International Journal of Adhesion and Adhesives, 2015
This study evaluated the importance of encapsulated collagen on resin/dentin interface created by different adhesive strategies. Composite build-ups were bonded to dentin using one of the following adhesive systems: Scotchbond Multi-Purpose (SBMP), Adper Scotchbond 2 (SB2), Clearfil SE (CSE) and Scotchbond SE Plus (SBSE), and cut into non-trimmed dentin-composite beams. Half of those beams were deproteinized using 10% NaOCl for 1 h and the other half was stored in water. Beams were pulled to failure and data were statistically analyzed by a two-way ANOVA and Tukey for multi-comparison test (α ¼0.05). Additional dentin disks were stained with Masson's trichrome acid and processed with light microscopy in order to identify the exposed collagen zones. All groups showed a significant reduction on bond strength after proteolytic challenge (po 0.05). Adhesive systems were ranked in the following order: SBMP4SB2 ¼CSE 4SBSE (po 0.05) for control and treated groups. Microscopy analysis showed different collagen exposed zones in relation with the adhesive strategy used. It can be concluded that collagen encapsulation affects the quality of bond interface, which is related to the adhesive system used.
Restorative dentistry & endodontics, 2017
This in vitro study evaluated the effect of dentin biomodifiers on the immediate and long-term bond strengths of a simplified etch and rinse adhesive to dentin. Flat coronal dentin surfaces were prepared in 120 extracted human molars. Teeth were randomly divided into 5 groups (n = 24) according to 5 different surface pre-treatments: No pre-treatment (control); 1M carbodiimide (EDC); 0.1% epigallocatechin-3-gallate (EGCG); 2% minocycline (MI); 10% sodium ascorbate (SA). After surface pre-treatment, adhesive (Adper Single Bond 2 [SB], 3M ESPE) was applied. Composite was applied into transparent plastic tubes (2.5 mm in diameter), which was placed over the bonded dentin surface. From each group, 10 samples were subjected to shear bond strength (SBS) evaluation at 24 hours (immediate) and remaining 10 samples were tested after 6 months (delayed). Additionally, 4 samples per group were subjected to scanning electron microscopic analysis for observation of resin-dentin interface. The data...
In vivo degradation of resin-dentin bonds produced by a self-etch vs. a total-etch adhesive system
European Journal of Oral Sciences, 2004
Dental adhesives have been evolving at a rapid rate over the past decade. A large part of this success is attributed to the significant advances in dentin bonding technology, at least in the short term (1, 2). One of the most recent developments for dentists and researchers is the simplification of the multistep bonding process, using one of two different approaches: the Ôtotal-etchÕ or Ôetch-and-rinseÕ system (2); and the Ôself-etchÕ system (2). Another aspect of this study is the durability of resin-dentin bonds under function for a long time period in an oral environment.
Applied Surface Science, 2006
The aim of this in vitro study was to evaluate the influence of pre-treatment using NaOCl in the morphology of dentin/resin interface. The three self-etching adhesive systems were selected: One-Up Bond F (Tokuyama, Tokyo, Japan), Prime & Bond NT/NRC (Dentsply, Konstanz, Germany) and Clearfil SE Bond (Kuraray, Osaka, Japan). Nine dentin disks were used in this study. Half disk was treated strictly following manufacturers' instructions (control groups). The other half was treated with a solution of 2.5% NaOCl (experimental groups). After the bonding protocols were accomplished, a low viscosity resin (Flow-it/Jeneric Pentron) was inserted and light-cured. Specimens were prepared for SEM. Morphological aspects were observed, comparing both the groups. The analysis of the photomicrographs revealed formation of a hybrid layer for both controls groups along the interface. The experimental groups showed a resin/dentin interface more irregular and produced topographical features with funnel-shaped dentin tubules. Areas with absence of hybrid layer formation were observed, mainly for One-Up Bond F, although tubules their lateral branches were filled with Prime & Bond NT/NRC and Clearfil Se Bond adhesive systems. It was concluded that the use of NaOCl influenced negatively in the formation of the hybrid layer, mainly for the One-Up Bond F. #
The Journal of Contemporary Dental Practice, 2006
Objective The purpose of this study was to evaluate the microtensile bond strength (μ TBS) of four total-etch adhesives [Excite (EB), Prime & Bond NT (PBNT), Single Bond (SB), and One Coat Bond (OCB)] by comparing them to five self-etching adhesives (Clearfil SE Bond (CSEB), Xeno III (X III), Prompt L-Pop (PLP), AQ Bond (AQB), and Tyrian/One Step plus (TOSP)] at different dentinal areas. In addition the interface between the adhesive resins and dentin was examined using scanning electron microscopy (SEM). Methods and Materials Superficial occlusal dentin of extracted human molars was exposed and finished with wet 800-grit silicon carbide paper. A block of composite resin was then bonded to the molar samples with the above adhesives according to the manufacturers’ instructions. After 24 hours in water at 37°C, the specimens were sectioned into 1 mm thick slices and divided into two regional subgroups according to their relationship to pulp tissue using visual criteria: pulp center an...