scholarly journals Adhesive Luting in Ceramic Inlays and Porcelain Laminate Veneers

2017 ◽  
pp. 44-45
Author(s):  
Ahmed Mohamed Elmarakby
Keyword(s):  
Bond Strength ◽  
Clinical Performance ◽  
Ceramic Inlays ◽  
Adhesive Luting ◽  
Composite Inlay ◽  
Laminate Veneers

Ceramic inlays, composite inlay-onlays and porcelain or zircon laminate veneers relay to a great extent on the acceptable clinical performance of adhesive luting as it considered the weakest point of the indirect restoration. Although most authors augment the opinion that bonding to enamel is more predictable and has better bond strength than bonding to dentin substrate, but it cannot completely depend on good enamel bond as a process of success of luting adhesive. An additional dentin bond is important not only for improvement the over-all bond strength but also to decrease postoperative hypersensitivities.

scholarly journals Effect of Provisional Cements on Shear Bond Strength of Porcelain Laminate Veneers

2011 ◽  
Vol 05 (04) ◽  
pp. 373-379 ◽  
Author(s):  
Subutay Han Altintas ◽  
Onjen Tak ◽  
Asli Secilmis ◽  
Aslihan Usumez
Keyword(s):  
Bond Strength ◽  
Calcium Hydroxide ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Acrylic Resin ◽  
Resin Cement ◽  
Control Group ◽  
Molar Teeth ◽  
Laminate Veneers ◽  
Selection Of

ABSTRACTObjectives: The purpose of this study was to evaluate the effect of three provisional cements and two cleaning techniques on the final bond strength of porcelain laminate veneers. Methods: The occlusal third of the crowns of forty molar teeth were sectioned and embedded in autopolymerizing acrylic resin. Dentin surfaces were polished and specimens were randomly divided into four groups (n=10). Provisional restorations were fabricated and two provisional restorations were cemented onto each tooth. Restorations were fixed with one of three different provisional cements: eugenol-free provisional cement (Cavex), calcium hydroxide (Dycal), and light-cured provisional cement (Tempond Clear). Provisional restorations were removed with either a dental explorer and air-water spray, or a cleaning bur (Opticlean). In the control group, provisional restorations were not used on the surfaces of specimens. IPS Empress 2 ceramic discs were luted with a dual-cured resin cement (Panavia F). Shear bond strength was measured using a universal testing machine. Data were statistically analyzed by ANOVA, Tukey’s HSD and Dunnett tests. Surfaces were examined by scanning electronic microscopy. Results: Significant differences were found between the control group and both the light-cured provisional cement groups and the eugenol-free provisional cement-cleaning bur group (P<.05). Groups that had received light-cured provisional cement showed the lowest bond strength values. Conclusions: Selection of the provisional cement is an important factor in the ultimate bond strength of the final restoration. Calcium hydroxide provisional cement and cleaning with a dental explorer are advisable. (Eur J Dent 2011;5:373-379)

Sign in / Sign up

Export Citation Format

Share Document