Adhesion of cast metal alloy and lithium disilicate copings luted to different core build-up materials with self-adhesive resin cement

The aim of this study was to evaluate if adhesion technology with CAD/CAM can compensate for the reduction of occluso cervical preparation heights using different types of dental cement. The de-bonding failure types were then assessed. Here, 72 caries-free extracted human premolar teeth were prepared to have a remaining occlusal height of two, three, and four mm. IPS e.max lithium disilicate CAD/CAM crowns were cemented with adhesive resin cement Panavia SA, self-adhesive resin cement, RelyX Unicem Aplicap, and zinc phosphate cement. The cementation techniques were based on the manufacturer’s instructions. After thermocycling, all samples were tested for tensile bond strength via an Instron machine. One-way analysis of variance (ANOVA) with post hoc testing (P < 0.05) was performed. The means TBS for the two, three, and four-mm OCHP groups were 2.72±0.69, 3.06±0.82, and 3.25±0.79.0 MPa; ARC, SARC, and ZPC were 3.41±0.51, 3.45±0.41, 2.08±0.35 MPa, respectively with significant differences in both. The mixed cement had failures in the resin cement groups. Failure was predominantly cohesive in the zinc phosphate group. Resin cement had the highest SBS values versus ZPC values when both bonded to lithium disilicate crowns with different occlusal heights. The failure of the adhesive to the crown and/or to the tooth were the highest for the four types of resin cement. Around 25% were cohesive failures with resin cement, but this was predominately adhesive in crowns in zinc phosphate regardless of the preparation heights.

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Effect of Silanization on Microtensile Bond Strength of Different Resin Cements to a Lithium Disilicate Glass Ceramic

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1818 ◽

2016 ◽

Vol 17 (2) ◽

pp. 149-153 ◽

Cited By ~ 7

Author(s):

Cristina Parise Gré ◽

Renan C de Ré Silveira ◽

Shizuma Shibata ◽

Carlo TR Lago ◽

Luiz CC Vieira

Keyword(s):

Bond Strength ◽

Glass Ceramic ◽

Hydrofluoric Acid ◽

Lithium Disilicate ◽

Resin Cement ◽

Microtensile Bond Strength ◽

Resin Cements ◽

Adhesive Resin ◽

Silane Coupling ◽

Adhesive Resin Cement

ABSTRACT Aim This study evaluated the influence of a silane-coupling agent on the bond strength of a self-adhesive cement and a conventional resin cement to a lithium disilicate glass ceramic. Materials and methods A total of eight ceramic blocks were fabricated and divided into four groups (n = 2). In groups 1 and 3, ceramic surfaces were etched with hydrofluoric acid 10% for 20 seconds, rinsed for 30 seconds, and air-dried. One layer of a silane agent was applied onto all ceramic specimens and air-dried for 30 seconds. In groups 2 and 4, ceramic surfaces were etched with hydrofluoric acid, rinsed, and air-dried without application of the silane-coupling agent. The ceramic blocks were bonded to a block of composite with a self-adhesive resin cement or with a conventional resin cement, according to the manufacturer's instructions. After 24 hours in distilled water at 37°C, the specimens were sectioned perpendicular to the bonding interface area to obtain beams with a bonding area of 0.8 mm2 and submitted to a microtensile bond strength test at a crosshead speed of 0.5 mm/min. Data were statistically analyzed with one-way analysis of variance and the Games–Howell post hoc test (p = 0.05). Fractured specimens were examined under optical microscopy at 40× magnification. Results Silanization resulted in higher microtensile bond strength compared to groups without silane. No significant differences were found between the conventional resin cement and the self-adhesive resin cement with silane agent (p = 0.983), and without silane agent (p = 0.877). Conclusion Silanization appears to be crucial for resin bonding to a lithium disilicate-based ceramic, regardless of the resin cement used. The self-adhesive resin cement performed as well as the conventional resin cement. Clinical significance Applying one layer of a silane-coupling agent after etching the ceramic surface with hydrofluoric acid 10% enhanced the bond strength between resin cements and a glass ceramic. How to cite this article Gré CP, de Ré Silveira RC, Shibata S, Lago CTR, Vieira LCC. Effect of Silanization on Microtensile Bond Strength of Different Resin Cements to a Lithium Disilicate Glass Ceramic. J Contemp Dent Pract 2016;17(2):149-153.

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Simplified cementation of lithium disilicate crowns: Retention with various adhesive resin cement combinations

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2017.07.012 ◽

2018 ◽

Vol 119 (5) ◽

pp. 826-832 ◽

Cited By ~ 9

Author(s):

Glen H. Johnson ◽

Xavier Lepe ◽

Amanda Patterson ◽

Oliver Schäfer

Keyword(s):

Lithium Disilicate ◽

Resin Cement ◽

Adhesive Resin ◽

Adhesive Resin Cement

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Damage of lithium-disilicate all-ceramic restorations by an experimental self-adhesive resin cement used as core build-ups

Clinical Oral Investigations ◽

10.1007/s00784-014-1263-9 ◽

2014 ◽

Vol 19 (2) ◽

pp. 281-288 ◽

Cited By ~ 8

Author(s):

G. Sterzenbach ◽

G. Karajouli ◽

R. Tunjan ◽

T. Spintig ◽

K. Bitter ◽

...

Keyword(s):

Lithium Disilicate ◽

Resin Cement ◽

Adhesive Resin ◽

All Ceramic ◽

Adhesive Resin Cement ◽

Ceramic Restorations

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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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Influence of Temporary Cements on the Bond Strength of Self-Adhesive Cement to the Metal Coronal Substrate

Brazilian Dental Journal ◽

10.1590/0103-6440201300362 ◽

2015 ◽

Vol 26 (6) ◽

pp. 637-641

Author(s):

Raniel Fernandes Peixoto ◽

Caio Rocha de Aguiar ◽

Eduardo Santana Jacob ◽

Ana Paula Macedo ◽

Maria da Gloria Chiarello de Mattos ◽

...

Keyword(s):

Tensile Strength ◽

Bond Strength ◽

Testing Machine ◽

Resin Cement ◽

Adhesive Resin ◽

Cast Metal ◽

Air Jet ◽

Significant Difference ◽

Strength Tests ◽

Adhesive Resin Cement

This research evaluated the influence of temporary cements (eugenol-containing [EC] or eugenol-free [EF]) on the tensile strength of Ni-Cr copings fixed with self-adhesive resin cement to the metal coronal substrate. Thirty-six temporary crowns were divided into 4 groups (n=9) according to the temporary cements: Provy, Dentsply (eugenol-containing), Temp Cem, Vigodent (eugenol-containing), RelyX Temp NE, 3M ESPE (eugenol-free) and Temp Bond NE, Kerr Corp (eugenol-free). After 24 h of temporary cementation, tensile strength tests were performed in a universal testing machine at a crosshead speed of 0.5 mm/min and 1 kN (100 kgf) load cell. Afterwards, the cast metal cores were cleaned by scraping with curettes and air jet. Thirty-six Ni-Cr copings were cemented to the cast metal cores with self-adhesive resin cement (RelyX U200, 3M ESPE). Tensile strength tests were performed again. In the temporary cementation, Temp Bond NE (12.91±2.54) and Temp Cem (12.22±2.96) presented the highest values of tensile strength and were statistically similar to each other (p>0.05). Statistically significant difference (p<0.05) was observed only between Provy (164.44±31.23) and Temp Bond NE (88.48±21.83) after cementation of Ni-Cr copings with self-adhesive resin cement. In addition, Temp Cem (120.68±48.27) and RelyX Temp NE (103.04±26.09) showed intermediate tensile strength values. In conclusion, the Provy eugenol-containing temporary cement was associated with the highest bond strength among the resin cements when Ni-Cr copings were cemented to cast metal cores. However, the eugenol cannot be considered a determining factor in increased bond strength, since the other tested cements (1 eugenol-containing and 2 eugenol-free) were similar.

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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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