Microtensile Bond Strength of Three Restorative Core Materials with IPS E.max Press Ceramic by Two Resin Cements
Journal Title: Journal of Dental School Shahid Beheshti University of Medical Sciences - Year 2016, Vol 34, Issue 1
Abstract
Objectives: The aim of this study was to compare the microtensile bond strengths (µ TBS) of three core materials with one lithium disilicate reinforced ceramic using two resin cements. Methods: Three core materials (Nulite F® (Biodental Technologies), Filtek Z250® (3M-ESPE), Prettau-Anterior® (Zirkonzhan, Germany)) were prepared as blocks (10×10×4 mm3) according to the manufacturer’s instructions. Lithium disilicate ceramic blocks were also constructed and bonded to core specimens with two dual curing luting resin cements (Duo-Link® (Schaumburg, IL), Bifix QM® (VOCO, Cuxhaven, Germany)). Micro-bar specimens were prepared and loaded in tension to determine the µ TBS Failure modes were classified by scanning electron microscope (SEM). Data were analysed using two-way ANOVA and Tukey HSD test. Results: The µ TBS varied significantly depending on the core materials and resin cements used (P< 0.05). The µ TBS of Bifix QM was significantly higher than of Duo-Link in all core materials. The µ TBS of zirconia core was significantly higher than of both composite cores with both resin cements. There were no statistically significant differences among Nulite F and Filtek Z250 (P> 0.05). The highest bond strength was obtained between zirconia core and Bifix QM (45.3 ± 6.7 MPa). Conclusion: In vitro µ TBS of glass ceramic blocks bonded to zirconia core material showed higher bond strength values than resin-based core material, regardless of the resin cement type used.
Authors and Affiliations
Mahshid Mohammadi-bassir, Seyyedeh Shaghayegh Razavi, Mohammad Bagher Rezvani, Hossein Labbaf
Keywords
Related Articles
- EP ID EP371666
- DOI -
- Views 73
- Downloads 0
In Vitro Effect of Hydroalcoholic Extract of Aloe Vera and 0.2% Chlorhexidine Mouthwash on Streptococcus Sanguinis, Streptococcus Salivarius and Streptococcus Mutans
Objectives This study aimed to assess the antimicrobial effects of aloe vera hydroalcoholic extract and 0.2% chlorhexidine (CHX) mouthwash on Streptococcus sanguinis (S. sanguinis), Streptococcus salivarius (S. salivariu...
Assessment of the Inferior Mandibular Canal’s Position by Cone-Beam Computed Tomography
Objectives: It is important to know the exact location and anatomic variety of inferior alveolar nerve canal for different procedures of mandibular surgeries. The aim of the present study was to evaluate inferior mandibu...
Full Mouth Reconstruction of a Patient with Worn Dentition: A Clinical Report
The attrition of anterior teeth leads to the loss of efficient anterior guidance, which protects posterior teeth from wear during lateral excursions. This clinical report describes a 48-year-old man with diagonal tooth w...
Comparison of pH and Viscosity of Unstimulated Saliva in Type 2 Diabetic Patients and Control Group
Objectives: Diabetes mellitus is one of the most common chronic diseases that may cause irreversible complications. This disease can affect the salivary glands and oral health. Among physical and chemical alterations, ch...
Effects of Local and Systemic Atorvastatin on Inflammation and Alveolar Bone Loss in Experimental Periodontitis in Rats
Objectives Periodontitis is the first cause of tooth loss in developed countries and often occurs in people over 40 years. Atorvastatin is a statin drug with optimal efficacy for treatment of high cholesterol. It also st...