Examination of the Effect of Preheating Process on Microtensile Bond Strength in the Cementation of Indirect Restorations

Aim: The aim of this study was to investigate the effect of preheating of inlay and onlay restorations prepared from composite materials and using a CAD/CAM device on microtensile bond strength in different structures. Methodology: In this study, 90 impacted human third molar teeth unaffected by the mouth environment were used. These teeth were divided into 3 groups. MOD inlay cavity preparation was performed on all samples according to the parameters specified. For the first group, restorations were prepared using a CAD/CAM device. For the second group, a fiber-reinforced composite (EverX Posterior, GC, Tokyo, Japan) was used on the bottom of the cavity to simulate dentin structure. Restoration was then completed using the laboratory composite system (Gradia, GC, Tokyo, Japan). For the third group, restorations were completed using the laboratory composite system (Gradia, GC, Tokyo, Japan) alone. Er,Cr:YSGG laser (Fotona Laser AT Fidelis Plus III, Slovenia) was administered on all prepared restorations for surface roughening. In the cementation of the restorations, resin cement was administered with and without preheating. The prepared samples were placed in a microtensile tester, and the sticks were broken off by setting the loading speed at 1 mm/min. The prepared samples were tested for microtensile bond strength (Microtensile Tester, Bisco, Schaumburg, IL, USA). The results obtained in Newtons were divided into the surface area and converted to MPa. The results were recorded as microtensile bond strength values. Results: There was no statistically significant difference between the groups in terms of the statistical evaluation of the microtensile bond strengths of the samples in which the adhesive cement was pre-heated (P) and not pre-heated (N) during the cementations (p>0.05). There was a statistically significant difference (p<0.05) in terms of the microtensile bond strength values between the groups in which the adhesive cement was pre-heated during the cementation of restorations. Conclusion: It was observed that exposure of the adhesive cement to preheating in the cementation of the EverX Posterior-based inlays adversely affects the bond strength. It was observed that the preheating process statistically significantly increased the bond strength in the inlays made using the Gradia composite. Preheating of the cement in the cementation of Cerasmart composite inlays produced using the CAD/CAM system did not affect the microtensile bond strength.

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Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

Materials ◽

10.3390/ma14227058 ◽

2021 ◽

Vol 14 (22) ◽

pp. 7058

Author(s):

Akane Chin ◽

Masaomi Ikeda ◽

Tomohiro Takagaki ◽

Toru Nikaido ◽

Alireza Sadr ◽

...

Keyword(s):

Bond Strength ◽

Water Sorption ◽

Resin Composite ◽

Resin Cement ◽

Air Abrasion ◽

Resin Cements ◽

Significant Difference ◽

Computer Aided ◽

Cad Cam ◽

Curing Methods

The purpose of this study was to evaluate the effect of one week of Computer-aided design/Computer-aided manufacturing (CAD/CAM) crown storage on the μTBS between resin cement and CAD/CAM resin composite blocks. The micro-tensile bond strength (μTBS) test groups were divided into 4 conditions. There are two types of CAD/CAM resin composite blocks, namely A block and P block (KATANA Avencia Block and KATANA Avencia P Block, Kuraray Noritake Dental, Tokyo, Japan) and two types of resin cements. Additionally, there are two curing methods (light cure and chemical cure) prior to the μTBS test—Immediate: cementation was performed immediately; Delay: cementation was conducted after one week of storage in air under laboratory conditions. The effect of Immediate and Delayed cementations were evaluated by a μTBS test, surface roughness measurements, light intensity measurements, water sorption measurements and Scanning electron microscope/Energy dispersive X-ray spectrometry (SEM/EDS) analysis. From the results of the μTBS test, we found that Delayed cementation showed significantly lower bond strength than that of Immediate cementation for both resin cements and both curing methods using A block. There was no significant difference between the two types of resin cements or two curing methods. Furthermore, water sorption of A block was significantly higher than that of P block. Within the limitations of this study, alumina air abrasion of CAD/CAM resin composite restorations should be performed immediately before bonding at the chairside to minimize the effect of humidity on bonding.

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Influence of Relining Post on the Bond Strength of Resin Cements

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1722 ◽

2015 ◽

Vol 16 (7) ◽

pp. 559-564 ◽

Cited By ~ 4

Author(s):

Matheus Coelho Bandéca ◽

Adriano Augusto Melo de Mendonça ◽

Etevaldo Matos Maia Filho ◽

Fausto da Silva Bramante ◽

Darlon Martins Lima ◽

...

Keyword(s):

Bond Strength ◽

Resin Cement ◽

The Self ◽

Fiber Post ◽

Resin Cements ◽

Adhesive Resin ◽

Fiber Posts ◽

Significant Difference ◽

Adhesive Cement ◽

Push Out

ABSTRACT This study evaluated the influence of relining fiber posts on the bond strength (BS) of resin cements in the root canal. Forty bovine teeth were divided in four groups (n = 10)G1 (ARC)—fiber post cemented with resin cement RelyX ARC; G2 (ARC+Z350)—relined fiber post cemented with RelyX ARC; G3 (U200)—fiber post cemented with self-adhesive cement RelyX U200; G4 (U200+Z350)—relined fiber post cemented with RelyX U200. The roots were sectioned in six 1.2-mm slices and the push-out test was performed. Data were analyzed by three-way analysis of variance (ANOVA), and Tukey's test (α = 0.05). For the conventional resin cement, there was no significant difference between groups G1-ARC (15.5 ± 3.8) and G2-ARC+Z350 (16.1 ± 4.5). For the self-adhesive cement, the results revealed higher BS values for relined posts G4-U200 + Z350 (19.9 ± 7.9) as compared to non-relined posts G3-U200 (14.4 ± 4.5). For both cements, in groups of relined posts, the apical and the cervical thirds presented similar BS. Relining enhances the performance of the self-adhesive resin cement, and the interaction between relining and root third influences the BS to the conventional resin cement. How to cite this article Conde DM, Rodrigues VP, de Fátima Carvalho Souza S, Bauer JRO, da Silva Bramante F, Lima SNL, Filho EMM, Bandeca MC, de Mendonça AAM, Lima DM. Influence of Relining Post on the Bond Strength of Resin Cements. J Contemp Dent Pract 2015;16(7):559-564.

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Regional bond strengths to root canal dentin of fiber posts luted with three cementation systems

Brazilian Dental Journal ◽

10.1590/s0103-64402011000600004 ◽

2011 ◽

Vol 22 (6) ◽

pp. 460-467 ◽

Cited By ~ 18

Author(s):

Giovana Mongruel Gomes ◽

Osnara Maria Mongruel Gomes ◽

Alessandra Reis ◽

João Carlos Gomes ◽

Alessandro Dourado Loguercio ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Repeated Measures ◽

Resin Cement ◽

Failure Pattern ◽

Fiber Posts ◽

Significant Difference ◽

Root Canal Dentin ◽

Adhesive Cement ◽

Push Out

This study evaluated the influence of the cementation system on the regional push-out bond strength and failure pattern of fiber posts to radicular dentin. The roots of 48 extracted human incisors were prepared and divided into 3 groups (n=16), according to the cementation system: AdperScotchbond Multi-Purpose + resin cement RelyX ARC (SBMP+ARC); Adper SingleBond 2 + RelyX ARC (SB+ARC) and; RelyX U100 self-adhesive resin cement (U100). The posts were cemented as per manufacturer’s instructions for each cementation system. After 1 week, the roots were sectioned transversely into 6 discs. Two discs were obtained from the cervical, middle and apical thirds and the push-out test was carried out. The failure pattern was examined on all debonded specimens. The data were analyzed by two-way repeated measures ANOVA and Tukey’s test. When U100 was used, no statistically significant difference (p>0.05) was observed among the different root regions. Statistically higher push-out bond strength values were detected in the cervical third for SBMP+ARC and SB+ARC (p<0.05). The U100 showed significantly more mixed failures than SBMP+ARC in the apical third (p<0.05). In conclusion, the self-adhesive cement RelyX U100 was the only cement not sensitive to the root canal region.

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Shear Bond Strength of Porcelain Veneers Rebonded to Enamel

Operative Dentistry ◽

10.2341/14-123-l ◽

2015 ◽

Vol 40 (3) ◽

pp. E112-E121 ◽

Cited By ~ 2

Author(s):

HA St Germain ◽

TH St Germain

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Aluminum Oxide ◽

Shear Bond Strength ◽

Resin Cement ◽

Enamel Surface ◽

Control Group ◽

Significant Difference ◽

Mode Of Failure ◽

Group A

SUMMARY In this laboratory research, shear bond strength (SBS) and mode of failure of veneers rebonded to enamel in shear compression were determined. Three groups (A, B, and C; n=10 each) of mounted molar teeth were finished flat using wet 600-grit silicon carbide paper, and 30 leucite-reinforced porcelain veneers (5.0 × 0.75 mm) were air abraded on the internal surface with 50 μm aluminum oxide, etched with 9.5% hydrofluoric acid, and silanated. The control group (A) veneer specimens were bonded to enamel after etching with 37% phosphoric acid using bonding resin and a dual cure resin composite cement. Groups B and C were prepared similarly to group A with the exception that a release agent was placed before the veneer was positioned on the prepared enamel surface and the resin cement was subsequently light activated. The debonded veneers from groups B and C were placed in a casting burnout oven and heated to 454°C/850°F for 10 minutes to completely carbonize the resin cement and stay below the glass transition temperature (Tg) of the leucite-reinforced porcelain. The recovered veneers were then prepared for bonding. The previously bonded enamel surfaces in group B were air abraded using 50 μm aluminum oxide followed by 37% phosphoric acid etching, while group C enamel specimens were acid etched only. All specimens were thermocycled between 5°C and 55°C for 2000 cycles using a 30-second dwell time and stored in 37°C deionized water for 2 weeks. SBS was determined at a crosshead speed of 1.0 mm/min. SBS results in MPa for the groups were (A) = 20.6±5.1, (B) = 18.1±5.5, and (C) = 17.2±6.1. One-way analysis of variance indicated that there were no significant interactions (α=0.05), and Tukey-Kramer post hoc comparisons (α=0.05) detected no significant pairwise differences. An adhesive mode of failure at the enamel interface was observed to occur more often in the experimental groups (B = 40%, C = 50%). Rebonding the veneers produced SBS values that were not significantly different from the control group. Also, no significant difference in SBS values were observed whether the debonded enamel surface was air abraded and acid etched or acid etched only.

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Influence of drying time of adhesive systems on the bond strength between resin cement and feldspathic ceramic

Brazilian Dental Science ◽

10.14295/bds.2016.v19i1.1194 ◽

2016 ◽

Vol 19 (1) ◽

pp. 88

Author(s):

Sabrina Alves Feitosa ◽

Isabela Gomes Moura ◽

Pedro Henrique Corazza ◽

Cesar Dalmolin Bergolli ◽

Clóvis Pagani ◽

...

Keyword(s):

Bond Strength ◽

Adhesive System ◽

Resin Cement ◽

Ceramic Surface ◽

Drying Time ◽

Ceramic Block ◽

Significant Difference ◽

Before And After ◽

Cad Cam ◽

Ceramic Blocks

Objective: This study evaluated the effect of drying times of two total-etch & rinse adhesives on the resin bond strength to a feldsphatic ceramic, before and after aging. Material and Methods: Feldsphatic-ceramic CAD-CAM bars were cut into blocks (12×10×4 mm) with a cutting machine (N = 32). Impressions were made of each ceramic block with silicone putty material and the negative space was filled with a composite resin. The bonding ceramic surface was etched with hydrofluoric acid, silanized, and the adhesive system (SB- Single Bond 2, 3M-ESPE; or PB- Prime & Bond NT, Dentsply) was applied. The samples were dried at different times (5, 10 and 15 s) before the cementation. The resin and ceramic blocks were cemented by a dual cure resin cement. All samples were stored in distilled water at 37 °C for 24 h. For the μ-TBS test, the samples were sliced into microbars. Half of the bars of each block was tested after 24 h and, the other bars were submitted to thermocycling (12,000×) and water storage (150 d). For the 24 h groups, the longer drying time increased (p < 0.05) the bond strength of SB (water/alcohol adhesive), while reduced (p < 0.05) for the PB group (acetone based adhesive). Results: For the aged groups, the bond strength for the different drying times had no significant difference, for the both adhesives. Conclusion: Longer drying times increased the bond strength values of SB. Smaller drying times increased the bond strength values of PB. The aging protocol influenced the bond strength of SB groups. Keywords: Microtensile; Adhesion; Feldspar ceramic; Drying time; Adhesive system.

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Comparison of the Effect of Proanthocyanidin Surface Treatments on Shear Bond Strength of Different Cements

Materials ◽

10.3390/ma12172676 ◽

2019 ◽

Vol 12 (17) ◽

pp. 2676

Author(s):

Şifa Atabek ◽

A. Nehir Özden

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Glass Ionomer Cement ◽

Grape Seed ◽

Resin Cement ◽

Glass Ionomer ◽

Significant Difference ◽

Molar Teeth ◽

Aluminate Glass ◽

Ionomer Cement

This study aimed to compare the effect of proanthocyanidin-rich grape seed extract (Pa-rich GSE) in two different concentrations on the bond strength to dentin tissue for four different cement groups (resin cement (P), resin modified glass ionomer cement (K), calcium aluminate glass ionomer cement (C), glass ionomer cement (G)). One hundred and eighty dentin surfaces of the extracted molar teeth placed on acrylic cylinders were divided into 12 groups randomly (n = 15). Each cement group was further divided into control (CP, CC, CK, CG), 6.5% Pa-rich GSE (P6.5, C6.5, K6.5, G6.5) and 12.5% Pa-rich GSE (P12.5, C12.5, K12.5, G12.5) subgroups. In accordance with the manufacturer’s recommendations the cements were applied. After shear bond tests, surfaces were examined under a stereomicroscope. Median shear bond strength (in MPa) of CP, CK, CC, CG groups were 14.13, 7.05, 4.87, 3.86; for the P6.5, G6.5, C6.5, K6.5 groups they were 13.98, 13.42, 6.21, 3.27; and for the P12.5, C12.5, K12.5, G12.5 groups they were 15.08, 5.40, 3.10, 0.00, respectively. CK and K6.5 groups showed a significant difference from the K12.5 group (p < 0.05). Also, CG, G6.5 and G12.5 groups were found statistically different from each other (p < 0.05). Applied to the dentin surface, 6.5% Pa-rich GSE enhanced the bond strength of glass ionomer cements.

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Can the silane heat treatment influence the bond durability between resin cements and a dental ceramic?

RGO - Revista Gaúcha de Odontologia ◽

10.1590/1981-86372020000012019-0002 ◽

2020 ◽

Vol 68 ◽

Author(s):

Ronaldo Luís Almeida de CARVALHO ◽

Jean Soares MIRANDA ◽

Rodrigo Furtado de CARVALHO ◽

Michelly Rocha DUARTE ◽

Estevão Tomomitsu KIMPARA ◽

...

Keyword(s):

Heat Treatment ◽

Bond Strength ◽

Resin Cement ◽

Microtensile Bond Strength ◽

Resin Cements ◽

Luting Agents ◽

All Ceramic ◽

Cad Cam ◽

Ceramic Blocks ◽

Bond Durability

ABSTRACT Objective Evaluate the influence of silane heat treatment in bond durability between two resin cements and CAD/CAM feldspathic ceramic. Methods 40 feldspathic ceramic blocks were obtained, and were duplicated in microhybrid composite. All ceramic blocks were etched with 10% hydrofluoric acid for 20 s and received application of silane agent. The blocks were randomizedinto eight groups (n=5) according to the surface treatments and luting agents: P- Panavia F; PAg- Panavia F + Aging; HP- Heat Treatment + Panavia F; HPAg- Heat Treatment + Panavia F + Aging; R- RelyX ARC; Rag- RelyX ARC + Aging; HR- Heat Treatment + RelyX ARC; HRAg- Heat Treatment + RelyX ARC + Aging. The heat treatment was performed in furnace at 100 °C for 2 min. All blocks were cemented and cut to obtain samples with adhesive area of 1 mm2. Aging was performed with 10000 thermal cycles. The samples were subjected to microtensile bond strength test. Results The three-way ANOVA test revealed a significant interaction between cement versus heat treatment (p=0.001) and heat treatment versus thermal cycling (p=0.001) indicating that there was a change in bond strength due to surface treatment and aging. Conclusion Therefore, the heat treatment of the silane at 100 ºC for 2 minutes obtained higher values of bond strength between the resin cement and a feldspathic ceramicafter aging.

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Microtensile Bond Strength of CAD/CAM Resin Blocks to Dual-Cure Adhesive Cement: The Effect of Different Sandblasting Procedures

Journal of Prosthodontics ◽

10.1111/jopr.12737 ◽

2018 ◽

Vol 28 (2) ◽

pp. e485-e490 ◽

Cited By ~ 8

Author(s):

Neslihan Tekçe ◽

Safa Tuncer ◽

Mustafa Demirci ◽

Dilan Kara ◽

Canan Baydemir

Keyword(s):

Bond Strength ◽

Microtensile Bond Strength ◽

Cad Cam ◽

Adhesive Cement

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Influence of Alumina Air-Abrasion on Flexural and Shear Bond Strengths of CAD/CAM Composite

Crystals ◽

10.3390/cryst10100927 ◽

2020 ◽

Vol 10 (10) ◽

pp. 927

Author(s):

Pirat Karntiang ◽

Hiroshi Ikeda ◽

Yuki Nagamatsu ◽

Hiroshi Shimizu

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Resin Cement ◽

Bending Test ◽

Air Abrasion ◽

Iso Standard ◽

Three Point Bending ◽

Significant Difference ◽

Cad Cam ◽

Bond Strengths

The purpose of this study was to clarify the influence of alumina air-abrasion on flexural and bond strengths of CAD/CAM composites. The flexural strength (FS) of two brands of commercial CAD/CAM composites was investigated by the three-point bending test using two specimen designs: the single-bar according to the ISO standard and the bonded-double-bar fabricated by bonding two bars with a resin cement. The bond strength between the composites and the resin cement was measured by a conventional shear bond strength (SBS) test. The FS of single-bar specimens was significantly decreased by the air-abrasion. For the FS of the bonded-double-bar specimen, on the other hand, there was no significant difference between the specimens with/without air-abrasion. The SBS for the composites was significantly increased by air-abrasion. The results suggest that alumina air-abrasion improves the SBS of the composites while weakening its FS. Contrarily, the FS of the air-abraded composite did not decrease when the composites were bonded with the resin cement.

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Effect of Various Veneering Techniques on Bond Strength and Colour Stability of Zirconia / Veneering Ceramic after Hydrothermal Aging

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/704 ◽

2021 ◽

Vol 10 (39) ◽

pp. 3474-3479

Author(s):

Rafat Sasany ◽

Duygu Sarac ◽

Goknil Ergun Kunt

Keyword(s):

Bond Strength ◽

In Vitro Study ◽

Resin Cement ◽

Colour Stability ◽

Hydrothermal Aging ◽

Significant Difference ◽

Before And After ◽

Cad Cam ◽

Ceramic Restorations

BACKGROUND The purpose of this in-vitro study was to compare the colour stability and bond strength of zirconia-based ceramic restorations after hydrothermal aging using conventional layering, heat-pressing, and multilayer veneering techniques. METHODS One hundred twenty specimens’ core (15 x 10 x 0.7) was fabricated from A2-shade zirconia CAD-CAM blocks (IPS e.max ZirCAD). Specimens were divided into 4 groups for veneering (N = 30): [(layering group (L), IPS e.max ceram), (heat – pressing group (P), IPS press), and multilayer group, IPS e max Cad for 2 different types of cement (cemented with RelyX U200 (M1) and PANAVIA SA (M2))]. Aging was performed for (5 - 55°C, 5000). Colour coordinates before and after aging were measured to calculate colour differences (ΔE00). The shear bond strength test was performed with a universal test unit. The data were analysed using the analysis of variance (ANOVA) and Tukey’s Honest Significant Difference test (alpha = 0.05). RESULTS Significant differences were found between the groups in bond strength (P < 0.001). Group M1 had the highest bond strength while Group L had the lowest bond strength. In terms of ΔE00 values, there were significant variations between the groups (P < 0.001). Group M1 had the highest colour stability, while Group M2 had the lowest colour stability. CONCLUSIONS The method of fabrication had an impact on the power of the bond between veneering ceramic and zirconia, as well as its colour stability. The restoration fabricated by a multilayer technique was cemented by resin cement (Rely X U200 Automix) which was found to be more resistant and colour stable. KEY WORDS Veneers, Heat-Press Technique, Bond Strength, Colour Different, Hydrothermal Aging.

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