The Effect of Tooth-preparation Cleansing Protocol on the Bond Strength of Self-adhesive Resin Cement to Dentin Contaminated with a Hemostatic Agent

Clinical Relevance After contamination with hemostatic agents, tooth-preparation cleansing protocols using either particle abrasion with low-pressure aluminum oxide particles or phosphoric acid-etching restored bond strengths to pre-contamination levels for a self-adhesive resin cement.

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Does Acid Etching Morphologically and Chemically Affect Lithium Disilicate Glass Ceramic Surfaces?

Journal of Applied Biomaterials & Functional Materials ◽

10.5301/jabfm.5000303 ◽

2017 ◽

Vol 15 (1) ◽

pp. 93-100 ◽

Cited By ~ 1

Author(s):

Yukinori Maruo ◽

Goro Nishigawa ◽

Masao Irie ◽

Kumiko Yoshihara ◽

Takuya Matsumoto ◽

...

Keyword(s):

Phosphoric Acid ◽

Glass Ceramic ◽

Hydrofluoric Acid ◽

Lithium Disilicate ◽

Resin Cement ◽

Acid Etching ◽

Adhesive Resin ◽

Ceramic Surfaces ◽

Bond Strengths ◽

Adhesive Resin Cement

Background This study evaluated the surface morphology, chemical composition and adhesiveness of lithium disilicate glass ceramic after acid etching with hydrofluoric acid or phosphoric acid. Methods Lithium disilicate glass ceramic specimens polished by 600-grit silicon carbide paper were subjected to one or a combination of these surface treatments: airborne particle abrasion with 50-μm alumina (AA), etching with 5% hydrofluoric acid (HF) or 36% phosphoric acid (Phos), and application of silane coupling agent (Si). Stainless steel rods of 3.6-mm diameter and 2.0-mm height were cemented onto treated ceramic surfaces with a self-adhesive resin cement (Clearfil SA Cement). Shear bond strengths between ceramic and cement were measured after 24-hour storage in 37°C distilled water. Results SEM images of AA revealed the formation of conventional microretentive grooves, but acid etching with HF or Phos produced a porous surface. Bond strengths of AA+HF+Si (28.1 ± 6.0 MPa), AA+Phos+Si (17.5 ± 4.1 MPa) and HF+Si (21.0 ± 3.0 MPa) were significantly greater than those of non-pretreated controls with Si (9.7 ± 3.7 MPa) and without Si (4.1 ± 2.4 MPa) (p<0.05). In addition, HF etching alone (26.2 ± 7.5 MPa) had significantly higher bond strength than AA alone (11.5 ± 4.0 MPa) (p<0.05). AA+HF, AA+Phos and HF showed cohesive failures. Conclusions Etching with HF or Phos yielded higher bond strength between lithium disilicate glass ceramic and self-adhesive resin cement without microcrack formation.

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The Effect of Aging and Surface treatments on Micro-shear Bond Strength of Resin Nano-Ceramic Material Using Two Resin Cements

Journal of Dentistry and Oral Sciences ◽

10.37191/mapsci-2582-3736-2(1)-021 ◽

2020 ◽

Author(s):

Ayman Mohammed Said

Keyword(s):

Bond Strength ◽

Hydrofluoric Acid ◽

Shear Bond Strength ◽

Surface Treatments ◽

Resin Cement ◽

Acid Etching ◽

Resin Cements ◽

Adhesive Resin ◽

Mean Values ◽

Adhesive Resin Cement

Purpose: To evaluate the effect of aging and different surface treatments on micro-shear bond strength of two resin cements to resin nano-ceramic composite blocks using an in-vitro study. Materials and methods: Blocks of resin nano-ceramic (Lava Ultimate, 3M, St Paul, Minnesota, USA) were used to prepare eight plates having the following dimensions: (14mm × 12mm × 2mm). After plates preparation they were assigned to two main groups according to the surface treatment applied, either hydrofluoric acid etching and silane or sandblasting and silane. Scanning electron microscope (SEM) was used to analyze the surface topography of the Lava-Ultimate plates before and after application of surface treatments. Two resin cements were used; dual cured adhesive resin cement (Bifix QM, VOCO, Cuxhafen, Germany) and dual cured self-adhesive resin cement (Bifix SE, VOCO, Cuxhafen, Germany) to create a five resin micro-cylinders received on each lava ultimate plate. Ten specimens from each subgroup were tested after 24 hours and the other ten specimens were tested after aging in saline for 6 months. Micro-shear bond strength test was applied until failure. . Multi-factorial ANOVA test and One-way ANOVA followed by pair-wise Tukey’s post-hoc tests were used to analyze the data. Results: Both resin cements showed statistically significant decrease on bond strength after aging. Before aging, both surface treatments with adhesive resin cement showed statistically significant higher micro-shear bond strength mean values than with self-adhesive resin cement. After aging sandblasting showed a statistically significant higher micro-shear bond strength mean values with adhesive resin cement, while hydrofluoric acid etching revealed a statistically non-significant higher values with adhesive resin cement than self-adhesive resin cement. Conclusion: For both surface treatments and resin cements aging had a detrimental effect on micro- shear bond strength.

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Effect of Glass Fiber Post Surface Treatment on Bond Strength of a Self-Adhesive Resin Cement: An “In Vitro” Study

International Journal of Dentistry ◽

10.1155/2021/8856657 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Lairds Rodrigues dos Santos ◽

Darlon Martins Lima ◽

Edilausson Moreno Carvalho ◽

Vandilson Pinheiro Rodrigues ◽

Claudia Maria Coelho Alves

Keyword(s):

Hydrogen Peroxide ◽

Bond Strength ◽

Aluminum Oxide ◽

Surface Treatment ◽

Glass Fiber ◽

Resin Cement ◽

Adhesive Failure ◽

Adhesive Resin ◽

Oxide Particles ◽

Adhesive Resin Cement

Objective. This study evaluated the influence of different mechanical and chemical surface treatments alone and combined with silane on the bond strength (BS) of glass fiber posts (GFPs) using self-adhesive resin cement. Methods. Eighty-four single-rooted bovine teeth (six groups, n = 14) were submitted to BS analysis after GFP cementation. The treatments applied in the studied groups were no surface treatment (control), silane (S), 24% hydrogen peroxide (PER), 24% hydrogen peroxide and silane (PER + SIL), blasting with 50 μm aluminum oxide particles (BLAST), and blasting with 50 μm aluminum oxide particles and silane (BLAST + SIL). Results. BS differed significantly among groups ( p < 0.001). It was higher in the SIL (10.5 ± 3.5 MPa), BLAST + SIL (11.5 ± 3.2 MPa), and PER + SIL (11.6 ± 4.6 MPa) groups than in the control (6.5 ± 2.9 MPa), BLAST (8.6 ± 4.0 MPa), and PER (7.1 ± 2.8 MPa) groups, with no significant difference among groups receiving silanization. Cement post adhesive failure was more common in the SIL, BLAST, and PER + SIL groups, and cement-dentin adhesive failure was more common in the control, BLAST + SIL, and PER groups. Conclusion. These results show that silane application alone increases BS.

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Effect of Er:YAG Laser and Reduced Time of Acid Etching on Bond Strength of Self-adhesive Resin Cement to MTA and Biodentine

Journal of lasers in medical sciences ◽

10.34172/jlms.2021.36 ◽

2021 ◽

Vol 12 (1) ◽

pp. e36-e36

Author(s):

Paria Dehghanian ◽

Fereshteh Shafiei ◽

Nasrin Kianimanesh

Keyword(s):

Bond Strength ◽

Adhesive Bonding ◽

Er:Yag Laser ◽

Resin Cement ◽

Acid Etching ◽

Control Group ◽

Laser Etching ◽

Adhesive Resin ◽

Surface Pretreatment ◽

Adhesive Resin Cement

Introduction: Considering the recent trend to use mineral trioxide aggregate (MTA) and Biodentine and resin cements, more conservative approaches concurrent with adequate bond strength have always been requested. The present study aimed to evaluate the effect of pretreatment with Er:YAG laser etching versus acid-etching for 5 and 15 seconds on the micro shear bond strength of self-adhesive resin cement (SRC) to MTA and Biodentine. Materials and Methods: Forty-eight samples of each cement (MTA and Biodentine) were prepared and distributed into four groups based on surface pretreatment: 1) control, no treatment; 2) Er:YAG laser etching with energy of 60 mJ; 3) 5-second acid-etching; 4) 15-second acid-etching. All specimens were cemented using SRC. Microshear bond strengths were tested following 24-hour water storage. Debonded specimens were examined and surface topography was assessed using an atomic force machine (AFM). Data analysis was performed using the two-way ANOVA and Tukey multiple comparisons test. Results: The three testing groups of laser etch and 5-s and 15-s acid-etch demonstrated a significantly higher SBS than the control group (P<0.05) with negligible differences among them (P > 0.05). Furthermore, Biodentine showed better adhesive bonding than MTA in all groups. Conclusion: Laser etching of 60 mJ and 5-s acid-etching were as beneficial as 15-s acid-etching in terms of bond strength of SRC to MTA and Bodentine.

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The effect of dentin desensitizers on shear bond strengths and vickers surface hardness of self-adhesive resin cement

Yeditepe Dental Journal ◽

10.5505/yeditepe.2018.96720 ◽

2018 ◽

Vol 14 (2) ◽

pp. 81-90

Author(s):

Murat Alkurt ◽

Zeynep Yeşil Duymuş ◽

Mustafa Gundoğdu ◽

Fikret Özgür Coşkun ◽

Tugay Şişçi ◽

...

Keyword(s):

Surface Hardness ◽

Resin Cement ◽

Adhesive Resin ◽

Bond Strengths ◽

Adhesive Resin Cement

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1-Year clinical study of indirect resin composite restorations luted with a self-adhesive resin cement: effect of enamel etching

Brazilian Dental Journal ◽

10.1590/s0103-64402012000200002 ◽

2012 ◽

Vol 23 (2) ◽

pp. 97-103 ◽

Cited By ~ 9

Author(s):

Cristiana Godoy Sartori Azevedo ◽

Mario Fernando De Goes ◽

Glaucia Maria Bovi Ambrosano ◽

Daniel C.N. Chan

Keyword(s):

Composite Resin ◽

Resin Cement ◽

Acid Etching ◽

Adhesive Resin ◽

Relyx Unicem ◽

Indirect Composite ◽

Adhesive Resin Cement ◽

Composite Resin Restorations ◽

Resin Restorations

In vitro studies have recommended enamel-etching before luting indirect restorations with self-adhesive resin cement. However, there is no scientific proof that this procedure has any clinical relevance. Thus, the aim of this study was to evaluate the effect of enamel-etching on the marginal quality of indirect composite resin restorations (inlay/onlay) using the self-adhesive cement RelyX Unicem clicker. Forty-two posterior teeth were selected from 25 patients that presented one or two teeth with large restorations in need of replacement. All teeth were prepared by the same operator and impressed with polyvinylsiloxane material. The composite resin restorations were built over plaster casts using the incremental technique with a LED device for light-curing the increments. The inlays/onlays were cemented according to one of the following protocols: 1. Etched group (ETR) - selective enamel phosphoric-acid etching + RelyX Unicem clicker; 2. Non-etched group (NER) - RelyX Unicem clicker alone. Each surface was light-cured for 60 s. Recalls occurred after 1 week (baseline), 6 and 12 months when the teeth were evaluated according to previously established scores (modified USPHS criteria). The clinical analysis showed little or no visible changes in the marginal quality after 1 year, even though a probe could detect all the restorations margins. Statistical analysis (Fisher’s exact test, p<0.05) detected no differences between the groups after 12 months. No restorations failed and no secondary caries were found. Enamel acid etching had no clinical relevance on the marginal quality of indirect composite resin restorations luted with RelyX Unicem clicker after 1 year of follow up.

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Comparison of Shear Bond Strengths of Conventional Resin Cement and Self-adhesive Resin Cement bonded to Lithium Disilicate: An in vitro Study

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-2143 ◽

2017 ◽

Vol 18 (10) ◽

pp. 881-886 ◽

Cited By ~ 2

Author(s):

Anip K Roy ◽

Dennis Mohan ◽

M Sunith ◽

Rashmi B Mandokar ◽

S Suprasidh ◽

...

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Lithium Disilicate ◽

Resin Cement ◽

Tooth Surface ◽

Ceramic Surface ◽

Adhesive Resin ◽

Bond Strengths ◽

Adhesive Resin Cement

ABSTRACT Aim The aim of this study is to compare the shear bond strengths of conventional resin cement and self-adhesive resin cement bonded to lithium disilicate. Materials and methods A total of 40 extracted human molar teeth were mounted in self-cure acrylic resin. Teeth were prepared to obtain flat occlusal surface. About 40 lithium disilicate specimens of dimension—10 mm in diameter and thickness of 2 mm—were fabricated using lost wax technique. The samples were divided into four groups: Groups I, II, III, and IV (n = 10). The specimens were surface treated with Monobond S silane coupling agent. Self-etching primer and bonding agent were applied on the bonding surface of the teeth in groups I and III. The specimens were bonded to the primed teeth with the Multilink N resin cement and subjected to the universal testing machine. The specimens were light-cured. Specimens in groups II and IV were luted to teeth using self-adhesive cement RelyX U100. The same force was applied over the specimen as mentioned above. Excess cement was removed, and light curing was done. The specimens in groups III and IV were subjected to thermocycling for 10,000 cycles at temperatures altering between 5°C and 55°C. Results The shear bond strengths of conventional resin cement and self-adhesive resin cement with lithium disilicate were tested before and after thermocycling. Results indicated thermocycling has no significant effect on the bond strengths of conventional or self-adhesive resin cement. However, from the study, it is seen that conventional resin cement had a higher shear bond strength value than the self-adhesive resin cement. Conclusion There was a significant difference between the average shear bond strength values of conventional resin cement (Multilink N) and self-adhesive resin cement (RelyX U100) when bonded to lithium disilicate disks, and thermocycling had no significant effect on the bond strength of conventional or self-adhesive resin cements. Clinical significance Among all-ceramic systems available, lithium disilicate materials have emerged as an excellent esthetic material for fabrication of anterior and posterior crowns and three-unit anterior fixed partial dentures because of their high translucency and improved optical properties. For successful clinical outcomes, the luting agent should have high bond strength not only to the ceramic surface, but also to the tooth surface. How to cite this article Roy AK, Mohan D, Sunith M, Mandokar RB, Suprasidh S, Rajan S. Comparison of Shear Bond Strengths of Conventional Resin Cement and Self-adhesive Resin Cement bonded to Lithium Disilicate: An in vitro Study. J Contemp Dent Pract 2017;18(10):881-886.

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Development of a Cavity Disinfectant Containing Antibacterial Monomer MDPB

Journal of Dental Research ◽

10.1177/0022034516663465 ◽

2016 ◽

Vol 95 (13) ◽

pp. 1487-1493 ◽

Cited By ~ 14

Author(s):

N. Hirose ◽

R. Kitagawa ◽

H. Kitagawa ◽

H. Maezono ◽

A. Mine ◽

...

Keyword(s):

Antibacterial Activity ◽

Bond Strength ◽

Bacterial Species ◽

Oral Bacteria ◽

Resin Cement ◽

Resin Cements ◽

Adhesive Resin ◽

Significant Difference ◽

Adhesive Resin Cement

An experimental cavity disinfectant (ACC) that is intended to be used for various direct and indirect restorations was prepared by adding an antibacterial monomer 12-methacryloyloxydodecylpyridinum bromide (MDPB) at 5% into 80% ethanol. The antibacterial effectiveness of ACC and its influences on the bonding abilities of resin cements were investigated. To examine the antibacterial activity of unpolymerized MDPB, the minimum inhibitory and bactericidal concentrations (MIC and MBC) were determined for Streptococcus mutans, Lactobacillus casei, Actinomyces naeslundii, Parvimonas micra, Enterococcus faecalis, Fusobacterium nucleatum, and Porphyromonas gingivalis. Antibacterial activities of ACC and the commercial cavity disinfectant containing 2% chlorhexidine and ethanol (CPS) were evaluated by agar disk diffusion tests through 7 bacterial species and by MIC and MBC measurement for S. mutans. The effects of ACC and CPS to kill bacteria in dentinal tubules were compared with an S. mutans–infected dentin model. Shear bond strength tests were used to examine the influences of ACC on the dentin-bonding abilities of a self-adhesive resin cement and a dual-cure resin cement used with a primer. Unpolymerized MDPB showed strong antibacterial activity against 7 oral bacteria. ACC produced inhibition zones against all bacterial species similar to CPS. For ACC and CPS, the MIC value for S. mutans was identical, and the MBC was similar with only a 1-step dilution difference (1:2). Treatment of infected dentin with ACC resulted in significantly greater bactericidal effects than CPS ( P < 0.05, analysis of variance and Tukey’s honest significant difference test). ACC showed no negative influences on the bonding abilities to dentin for both resin cements, while CPS reduced the bond strength of the self-adhesive resin cement ( P < 0.05). This study clarified that the experimental cavity disinfectant containing 5% MDPB is more effective in vitro than the commercially available chlorhexidine solution to eradicate bacteria in dentin, without causing any adverse influences on the bonding abilities of resinous luting cements.

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