Interfacial Fracture Toughness of Adhesive Resin Cement-Lithium-Disilicate/Resin-Composite Blocks

2017 ◽  
Vol 28 (1) ◽  
pp. e243-e251 ◽  
Author(s):  
Samer Mesmar ◽  
N. Dorin Ruse
Keyword(s):  
Fracture Toughness ◽  
Resin Composite ◽  
Interfacial Fracture ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Interfacial Fracture Toughness ◽  
Adhesive Resin ◽  
Adhesive Resin Cement

Bonding Strength of Lithium Disilicate Adhesive Crowns with Different Occluso-Cervical Preparation Heights and Cement Types

2022 ◽  
Vol 12 (3) ◽  
pp. 533-543
Author(s):  
Nasser M. Alahmari ◽  
Hafiz A. Adawi ◽  
Mohammed M. Al, Moaleem ◽  
Mashael M. A. Alqahtani ◽  
Lama A. A. Alkahtani ◽  
...  
Keyword(s):  
Zinc Phosphate ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Adhesive Resin ◽  
Dental Cement ◽  
Bonding Failure ◽  
Cad Cam ◽  
Adhesive Resin Cement ◽  
Cervical Preparation ◽  
Post Hoc

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.

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

2016 ◽  
Vol 17 (2) ◽  
pp. 149-153 ◽  
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.

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

2018 ◽  
Vol 119 (5) ◽  
pp. 826-832 ◽  
Author(s):  
Glen H. Johnson ◽  
Xavier Lepe ◽  
Amanda Patterson ◽  
Oliver Schäfer
Keyword(s):  
Lithium Disilicate ◽  
Resin Cement ◽  
Adhesive Resin ◽  
Adhesive Resin Cement

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

2016 ◽  
Vol 31 (3) ◽  
pp. 242-249
Author(s):  
Ziad Nawaf Al-Dwairi ◽  
Khalil Aleisa ◽  
Abdulhameed Al-Beshr ◽  
Yazeed Al-Habdan ◽  
Faisal Al-Harbi ◽  
...  
Keyword(s):  
Lithium Disilicate ◽  
Metal Alloy ◽  
Resin Cement ◽  
Adhesive Resin ◽  
Cast Metal ◽  
Adhesive Resin Cement

Interfacial fracture toughness of different resin cements bonded to a lithium disilicate glass ceramic

2012 ◽  
Vol 40 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Tabassom Hooshmand ◽  
Golriz Rostami ◽  
Marjan Behroozibakhsh ◽  
Mostafa Fatemi ◽  
Alireza Keshvad ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Glass Ceramic ◽  
Interfacial Fracture ◽  
Lithium Disilicate ◽  
Interfacial Fracture Toughness ◽  
Resin Cements

Effect of Different Surface Treatments of Resin Relined Fiber Posts Cemented With Self-adhesive Resin Cement on Push-out and Microtensile Bond Strength Tests

2020 ◽  
Vol 45 (4) ◽  
pp. E185-E195
Author(s):  
RV Machry ◽  
PE Fontana ◽  
TC Bohrer ◽  
LF Valandro ◽  
OB Kaizer
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Resin Composite ◽  
Resin Cement ◽  
Air Abrasion ◽  
Microtensile Bond Strength ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Adhesive Resin Cement ◽  
Push Out

Clinical Relevance When luting relined fiber posts with self-adhesive cement, the surface treatment of the posts influences the adhesion of the fiber posts to root dentin. SUMMARY This study evaluated the effect of surface treatment and silanization of resin composite on the bond strength of relined fiber posts cemented with self-adhesive resin cement. Push-out and microtensile bond strength (MTBS) tests were performed in this study. The endodontic treatment of 80 single-rooted bovine teeth was first performed in the push- out test segment, followed by weakening the intracanal walls by diamond bur. Then, the glass fiber posts were adapted with resin composite to fill the root canals, followed by photoactivation and resin surface conditioning according to four different experimental conditions: no conditioning as control, 10% hydrofluoric acid, 35% hydrogen peroxide, or air abrasion with alumina particle (all groups were subdivided into “with silanization” or “without silanization,” thus totaling eight experimental groups). Self-adhesive resin cement was used for the post cementation. Four slices per tooth were obtained for the push-out tests. Next, 160 blocks of resin composite were first produced for the MTBS tests; their bonding surfaces were conditioned (as mentioned, ie, eight treatments), and they were cemented to each other. The 80 sets (n=10/treatment) were then cut into microbars (16/set): eight were immediately tested, while the other eight were thermocycled (12,000×) and stored (120 days) before MTBS. Failure modes and topographic analyses were performed after treatments. There was no statistically significant difference for the push-out results. In MTBS, surface treatment and silanization had a significant effect (p&lt;0.001). Aging decreased bond strength for all groups. Considering the aged groups, air abrasion promoted the highest values and silanization improved bond strength for all treatments except air abrasion. The alumina particle air abrasion of the relining resin composite promoted the highest bond strengths when luting with self-adhesive resin cement.

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

2014 ◽  
Vol 19 (2) ◽  
pp. 281-288 ◽  
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

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

2017 ◽  
Vol 15 (1) ◽  
pp. 93-100 ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document