scholarly journals The Durability of Zirconia/Resin Composite Shear Bond Strength using Different Functional Monomer of Universal Adhesives

2021 ◽  
Author(s):  
Awiruth Klaisiri ◽  
Nantawan Krajangta ◽  
Niyom Thamrongananskul
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Functional Monomers ◽  
Composite Interface ◽  
Before And After ◽  
Universal Adhesives ◽  
Bond Strengths ◽  
Composite Shear ◽  
One Way Anova

Abstract Objective This study examined the effectiveness of different functional monomers in universal adhesives on zirconia/resin composite bond strength both before and after thermocycling. Four universal adhesives (G-premio bond universal, GPU; Clearfil Tri-S bond universal, CTB; Optibond Universal, OBU; Tetric N-bond universal; TNU), one adhesive (single bond 2; SB2), and one ceramic primer (Clearfil ceramic primer plus, CCP) were used in this study. Materials and Methods Zirconia discs were prepared and embedded in acrylic. Specimens were polished and sandblasted with alumina. The specimens were randomly divided into two groups (24 hours and the thermocycled), and each group was divided into six subgroups (n = 10), according to zirconia surfaces treatments: no Tx, CCP + SB2, GPU, CTB, OBU, TNU. An Ultradent mold was located on top of the treated zirconia surface. The resin composite was filled into the mold and then light-cured. A universal testing device was used to determine the shear bond strength. Statistical Analysis The data were statistically analyzed using one-way ANOVA and Tukey's test. Results After water storage for 24 hours, the shear bond strengths were GPU > CCP + SB2 = CTB = OBU = TNU > no Tx (p < 0.05). After thermocycling, the shear bond strengths were CCP + SB2 = GPU = CTB = TNU > OBU > no Tx (p < 0.05). Conclusion The universal adhesives containing 10-MDP exhibited the best performance in the shear bond strength of the zirconia/resin composite interface both before and after thermocycling.

scholarly journals Shear Bond Strengths and Morphological Evaluation of Filled and Unfilled Adhesive Interfaces to Enamel and Dentine

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Vajihesadat Mortazavi ◽  
Mohammadhosein Fathi ◽  
Ebrahim Ataei ◽  
Niloufar Khodaeian ◽  
Navid Askari
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
The Other ◽  
Adhesive Systems ◽  
Morphological Evaluation ◽  
Bond Strengths ◽  
Post Hoc ◽  
One Way Anova

In this laboratory study shear bond strengths of three filled and one unfilled adhesive systems to enamel and dentine were compared. Forty-eight extracted intact noncarious human mandibular molars were randomly assigned to two groups of 24 one for bonding to enamel and the other for bonding to dentine. Buccal and lingual surfaces of each tooth were randomly assigned for application of each one of filled (Prime & Bond NT (PBNT), Optibond Solo Plus (OBSP), and Clearfil SE Bond (CSEB)) and unfilled (Single Bond (SB)) adhesive systems (n=12). A universal resin composite was placed into the translucent plastic cylinders (3 mm in diameter and 2 mm in length) and seated against the enamel and dentine surfaces and polymerized for 40 seconds. Shear bond strength was determined using a universal testing machine, and the results were statistically analyzed using two-way ANOVA, one-way ANOVA,t-test, and Tukey HSD post hoc test with a 5% level of significance.There were no statistically significant differences in bond strength between the adhesive systems in enamel, but CSEB and SB exhibited significantly higher and lower bond strength to dentine, respectively, than the other tested adhesive systems while there were no statistically significant differences between PBNT and OBSP.

Comparison of the Effect of Hydrogel and a Solution of Sodium Ascorbate on Dentincomposite Bond Strength After Bleaching

2008 ◽  
Vol 9 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Soodabeh Kimyai ◽  
Hadi Valizadeh
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Sodium Ascorbate ◽  
Carbamide Peroxide ◽  
Treatment Groups ◽  
Bleaching Procedure ◽  
Bond Strengths ◽  
Composite Shear ◽  
Group 1

Abstract Aim The aim of this study was to compare the effects of solution and different sodium ascorbate hydrogels on dentin-resin composite shear bond strength subsequent to a bleaching procedure with 10% carbamide peroxide. Methods and Materials Sixty buccal dentin surfaces obtained from intact human third molars were randomly divided into five groups (n=12). Dentin surfaces received different treatments: (1) no treatment; (2) bleaching (10% carbamide peroxide gel); (3) bleaching + 10% sodium ascorbate solution; (4) bleaching + 10% sodium ascorbate hydrogel, and (5) bleaching + 20% sodium ascorbate hydrogel. Dentin surfaces were bonded with Single Bond™ and restored with a composite (Z100). The samples were tested for shear bond strengths. Data was analyzed using analysis of variance (ANOVA) and Tukey tests. Results Significantly higher bond strengths were observed subsequent to treatment with hydrogel and solution forms of sodium ascorbate (p<0.05). No significant differences were demonstrated between different forms of sodium ascorbate preparations. In addition, no significant differences were observed among groups with antioxidant treatment (Groups 3, 4, and 5) and Group 1 (no treatment). Conclusion Reduced bond strength to bleached dentin can be amended by the use of sodium ascorbate as an antioxidant. Clinical Significance Both hydrogel and solution forms of sodium ascorbate can significantly improve the reduced bond strength of resin composite to dentin subsequent to a bleaching procedure with 10% carbamide peroxide. Citation Kimyai S, Valizadeh H. Comparison of the Effect of Hydrogel and a Solution of Sodium Ascorbate on Dentin-composite Bond Strength After Bleaching. J Contemp Dent Pract 2008 February;(9)2:105-112.

scholarly journals Shear Bond Strength of the Amalgam-Resin Composite Interface

2007 ◽  
Vol 32 (4) ◽  
pp. 341-346 ◽  
Author(s):  
C. Machado ◽  
E. Sanchez ◽  
S. Alapati ◽  
R. Seghi ◽  
W. Johnston
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
In Vitro Study ◽  
Vitro Study ◽  
Composite Interface

Clinical Relevance On the basis of the results of this in vitro study, resin composite may be an effective way to repair or mask the appearance of amalgams placed in visible areas of the mouth.

scholarly journals Adhesion of Indirect MOD Resin Composite Inlays Luted With Self-adhesive and Self-etching Resin Cements

2012 ◽  
Vol 37 (5) ◽  
pp. 474-484 ◽  
Author(s):  
T Inukai ◽  
T Abe ◽  
Y Ito ◽  
P Pilecki ◽  
RF Wilson ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Resin Cement ◽  
Acid Etching ◽  
Resin Cements ◽  
Significant Difference ◽  
Before And After ◽  
Indirect Composite ◽  
Bond Strengths ◽  
Composite Inlays

SUMMARY This study investigated the effect of loading on the bond strength to dentin and microleakage of MOD indirect composite restorations bonded with self-adhesive and self-etching resin cements with or without acid etching of the proximal enamel margins. Class II MOD cavities were prepared in 48 molar teeth into dentin and divided into three groups of 16 teeth. Impressions were taken and indirect composite inlays fabricated (Estenia C & B). The enamel margins of the proximal boxes of half the specimens were phosphoric acid etched, and the inlays were cemented with one of three cements (Panavia F 2.0, SA Cement, or Rely X Unicem). After luting, eight teeth in each cement group were mechanically loaded at 2.5 cycles/s for 250,000 cycles. Unloaded teeth acted as controls. Teeth were stored in Rhodamine B solution for 24 hours, sectioned buccolingually at the proximal boxes to examine microleakage using confocal microscopy, and further sectioned for μTBS testing of the resin-dentin interface. Analysis of variance was performed to assess the effect of loading and acid etching on microleakage and bond strength. Acid etching had no effect on microleakage. No significant difference in the dentin bond strengths between the three cements existed after loading. Panavia F 2.0 exhibited a significant reduction in bond strength. With regard to microleakage at the proximal boxes, loading had no effect on dye penetration at the cavity floor. However, at the axial walls, loading had a significant deleterious effect on Panavia F 2.0. No difference in microleakage existed between the three cements at both sites before and after loading. In conclusion, the two tested self-adhesive cements exhibited similar bond strengths before and after loading to the self-etching resin cement. Loading reduced dentin bond strengths and increased microleakage at the resin-dentin interface. However, acid etching of the enamel margins had no significant effect on microleakage in the approximal regions of the bonded inlays.

scholarly journals Knoop hardness of enamel and shear bond strength of brackets bonded with composite resin with and without fluoride

2012 ◽  
Vol 17 (4) ◽  
pp. e1-e5
Author(s):  
Silvia Amélia Scudeler Vedovello ◽  
Marcelo Grigoletto ◽  
Mário Vedovello Filho ◽  
Heloísa Cristina Valdrighi ◽  
Mayury Kuramae
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Resin Composite ◽  
Knoop Hardness ◽  
Strength Testing ◽  
Test Machine ◽  
De Re ◽  
Significant Difference ◽  
Before And After

OBJECTIVE: The aim of this study was to evaluate the Knoop hardness of enamel, shear bond strength and failure pattern (adhesive, bracket/resin interface or mixed) after bonding and debonding brackets, using resin composite with fluoride (Ortho Lite Cure, Ortho Source®) and without fluoride (Orthobond, Morelli®). METHODS: Fragments (6 mm x 6 mm) of 40 bovine incisor crowns were embedded in acrylic self-polymerizing resin. The Knoop hardness measurements were performed before and after bonding metal brackets. The specimens were divided into two groups, according to composite resin: with fluoride (Ortho Lite Cure, Ortho Source®) and without fluoride (Orthobond, Morelli®). After bonding, the specimens were submitted to demineralization and remineralization cycling for 14 days. Shear bond strength testing was performed in a universal test machine (EMIC), at 5 mm/min crosshead speed. RESULTS: There was no significant difference in shear bond strength between Groups I and II. After demineralization and remineralization procedures (DE/RE), the specimens bonded with Ortho Lite Cure showed higher Knoop hardness than Orthobond. For both groups there was predominance of failure at bracket/resin interface. CONCLUSION: specimens bonded with fluoride resin composite showed higher microhardness after DE/RE cycling than those bonded with resin composite without fluoride, although no difference in shear bond strength was found.

Interfacial Characteristics and Bond Durability of Universal Adhesive to Various Substrates

2017 ◽  
Vol 42 (2) ◽  
pp. E59-E70 ◽  
Author(s):  
A Tsujimoto ◽  
WW Barkmeier ◽  
T Takamizawa ◽  
TM Wilwerding ◽  
MA Latta ◽  
...  
Keyword(s):  
Free Energy ◽  
Bond Strength ◽  
Surface Free Energy ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Universal Adhesive ◽  
Universal Adhesives ◽  
Post Hoc ◽  
Interfacial Characteristics ◽  
Bond Durability

SUMMARY Objective: This study investigated the interfacial characteristics and bond durability of universal adhesives to various substrates. Methods and Materials: Two universal adhesives were used: 1) Scotchbond Universal and 2) G-Premio Bond. The substrates used were bovine enamel and dentin with or without phosphoric acid etching, resin composite, lithium disilicate and leucite-reinforced glass ceramics, zirconia, and metal alloys. The surface free energy and the parameters of various substrates and of substrates treated by adhesive after light irradiation were determined by measuring the contact angles of three test liquids. Resin composite was bonded to the various substrates to determine shear bond strength after 24 hours water storage and 10,000 thermal cycles. A one-way analysis of variance (ANOVA) and the Tukey post hoc test were used for the surface free energy data, and a two-way ANOVA and the Tukey post hoc test were used for analysis of shear bond strength data (α=0.05). Results: The interfacial characteristics of the various substrates show significant differences depending on the type of substrate, but the interfacial characteristics of substrate treated by adhesive after light irradiation did not show any significant differences regardless of the substrate used. The bond durability of two universal adhesives to various substrates differs depending on the type of substrate and the adhesive. Conclusions: The results of this study suggest that universal adhesives modify the interfacial characteristics of a wide range of substrates and create a consistent surface, but the bond durability of universal adhesive to various substrates differs depending on the type of substrate and the adhesive.

The Effect of Thermocycling on the Adhesion of Self-etching Adhesives on Dental Enamel and Dentin

2007 ◽  
Vol 8 (2) ◽  
pp. 17-24 ◽  
Author(s):  
Alaa Morsy El Araby ◽  
Yousef F. Talic
Keyword(s):  
Bond Strength ◽  
Null Hypothesis ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Dental Enamel ◽  
Single Step ◽  
The Self ◽  
Repeated Measure ◽  
List Type ◽  
Bond Strengths

Abstract Aim The aim of the present study was to investigate the effectiveness of one total-etch self-priming adhesive and two one-step self-etching adhesive systems on the adhesion of a resin composite to both dentin and enamel. The effect of thermocycling on the adhesion was also investigated. The null hypothesis tested was thermocycling would not affect bond strengths to enamel and dentin treated with self-etching adhesives or a total-etch adhesive. Methods and Materials Two single-step self-etching adhesives [Xeno III (XE3) and Prompt L-Pop (PP)] and one two-step total-etch adhesive system (Prime & Bond NT) (P&B NT) were used in this study. Thirty cariesfree unrestored human third molars were used to make specimens of enamel and dentin. Different adhesives were applied on enamel and dentin surfaces according to the manufacturer's instructions then hybrid composite restorative material was condensed on the surface using a mold. The bonded specimens were stored in distilled water at 37°C for 24 hours before being tested. Half of the bonded specimens were tested for shear bond strength without thermocycling. The other half of the test specimens were thermocycled using a thermocycling apparatus in water baths held at 5°C and 55°C with a dwell time of one minute each for 10,000 cycles prior to shear testing. The mean shear bond strength before and after thermocycling was calculated, and the results were subjected to two-way analysis of variance (ANOVA) and repeated measure design to show the interaction between different materials and different times. Results The results showed shear bond strength on both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. Conclusions The null hypothesis tested “thermocycling would not affect bond strengths treated with selfetching adhesives” was rejected. Furthermore, the study revealed the following: The shear bond strength to both enamel and dentin of the total-etch adhesive and the self-etching adhesives decreased after the specimens were subjected to thermocycling. XE3 achieved the highest bond strength to both enamel and dentin (26.994±1.17 and 25.22±1.26, respectively). XE3 showed even better bonding after thermocycling to enamel and dentin than the total-etching system or PP. Although PP bonded to enamel showed lower shear bond strength value than XE3, it has durable bond strength even after thermocycling. Citation El Araby AM, Talic YF. The Effect of Thermocycling on the Adhesion of Self-etching Adhesives on Dental Enamel and Dentin. J Contemp Dent Pract 2007 February;(8)2:017-024.

scholarly journals Enamel Wetness Effects on Bond Strength Using Different Adhesive Systems

2011 ◽  
Vol 36 (3) ◽  
pp. 274-280 ◽  
Author(s):  
AY Furuse ◽  
LF Cunha ◽  
R Moresca ◽  
G Paganeli ◽  
RFL Mondelli ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Flat Surfaces ◽  
Etch And Rinse ◽  
The One ◽  
Bonding Systems ◽  
One Way Anova

SUMMARY Objective To evaluate, through the application of different dentin bonding systems, the influence of wetness on shear bond strength in enamel. Methods This study evaluated three etch-and-rinse adhesive systems (Scotchbond MP [used with and without primer]; Singlebond; and Prime&Bond 2.1) and two self-etching adhesive systems (Clearfil SE Bond; and Xeno IV). Flat bovine enamel surfaces were either air-dried for 30 seconds or blotted with absorbent paper after acid-etching for the conventional bonding agents or before the application of self-etching bonding agents. The resin composite EsthetX was bonded to flat surfaces that had been treated with one of the adhesives, following the manufacturer's instructions. After being stored in water at 37°C for one week, bonded specimens were broken in shear. Data were evaluated with two-way analysis of variance (ANOVA) and Student-Newman-Keuls tests (α=0.05). For comparing each condition individually, regardless of the adhesive or wetness condition, a one-way ANOVA and a Student-Newman-Keuls test (α=0.05) were applied. Results The two-way ANOVA showed significant differences among adhesive systems. An interaction effect was also observed (p&lt;0.05), but wetness did not influence shear bond strength (p=0.98). The one-way ANOVA showed that the all-in-one adhesive was the only material influenced by the presence of water at the enamel's surface. Conclusion The all-in-one adhesive behaved differently depending on whether the enamel surface was dry or wet.

Shear-Bond Strength of a New Self-Adhering Flowable Restorative Material to Dentin of Primary Molars

2013 ◽  
Vol 38 (2) ◽  
pp. 149-154 ◽  
Author(s):  
E Pacifici ◽  
M Chazine ◽  
A Vichi ◽  
S Grandini ◽  
C Goracci ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Primary Molars ◽  
Restorative Material ◽  
Chi Square ◽  
Etch And Rinse ◽  
Bond Strengths ◽  
Vertise Flow ◽  
Wallis Anova

Objective: The aim of this study was to evaluate the shear bond strength to dentin of primary molars of a new self-adhering flowable resin composite with two ionomer-based cements and one flowable resin composite in combination with two different adhesive systems. Study design: Fifty primary molars were grinded on the occlusal surface to obtain flat dentin substrate and randomly divided into 5 groups (n=10): OFL:Phosphoric Acid/Optibond FL/Premise Flow; OAO:Optibond All-In-One/Premise Flowable; II:Polyacrylic Acid/Fuji II; IX:Polyacrylic Acid/Fuji IX; V:Vertise Flow. Cylinders (3mm diameter – 5mm height) of restorative material were built-up in three increments over the dentin surfaces. A shear load was applied until failure. Bond strength values were statistically analysed with Kruskall-Wallis ANOVA followed by Dunn's test (P&lt;.05). Differences in failure mode distribution were assessed with Chi-square (P&lt;.05). Results: OFL and OAO recorded significantly higher bond strengths than the other groups. Adhesive failures were evident in all groups except OFL and OAO, in which also cohesive failures in dentin were observed. Conclusions: Vertise Flow established on primary dentin bond strengths values similar to those of glass ionomer cements routinely used for restorations of primary teeth. The combination of flowable resin with etch-and-rinse or all-in-one adhesives obtained higher bond strength values, thus involving a more complex handling.

scholarly journals Repair bond strength and degradation of glass ionomer cements after mechanical and chemical challenges

2020 ◽  
Vol 19 ◽  
pp. e201715
Author(s):  
Leandro Rahal Mestrener ◽  
Sandra Rahal Mestrener ◽  
Cleidiel Aparecido Araujo Lemos ◽  
André Luiz Fraga Briso ◽  
Renato Herman Sundfeld ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
The Other ◽  
Acid Solutions ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Universal Testing ◽  
Before And After ◽  
Bond Strengths

Aim: Little is known about the reparability of glass ionomer cements (GICs) after storage in acid environments. The aim of this study was to evaluate the solubility and repairability of GICs immersed in acid solutions and subjected to brushing. Methods: Thirty discs of each GIC (Vitremer, VitroFil LC, VitroFil, and Maxxion R) were divided into three immersion groups: distilled water, Coca-Cola, or hydrochloric acid (HCl), then subjected to brushing. The weight of discs was measured before and after the immersions to determine mass alteration. Each disc was repaired, by adding the same brand of GIC over its surface. After immersing the repaired specimens in same solutions, shear bond strengths using universal testing machine were measured. Two-way ANOVA and Tukey’s test was used (α=0.05). Results: Resin-modified GICs degrade after HCl immersion followed by brushing (p<0.05), while self-cured GICs were negatively affected by all challenges (p<0.05). The challenges decreased the repair strength for VitroFil LC (p<0.05), which had higher repair shear bond strength than the other GICs (p<0.05), exhibiting most cohesive failures. Conclusion: Self-cured GICs degraded when immersed in all acid solutions with brushing while resin-modified GICs only degraded following HCl immersion with brushing. Despite exhibiting the best repair results, VitroFil LC was the only GIC that was influenced by all the acid challenges.

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