Shear bond strength of indirect composite material to monolithic zirconia

Abstract

PURPOSEThis study aimed to evaluate the effect of surface treatments on bond strength of indirect composite material (Tescera Indirect Composite System) to monolithic zirconia (inCoris TZI).MATERIALS AND METHODSPartially stabilized monolithic zirconia blocks were cut into with 2.0 mm thickness. Sintered zirconia specimens were divided into different surface treatment groups: no treatment (control), sandblasting, glaze layer & hydrofluoric acid application, and sandblasting + glaze layer & hydrofluoric acid application. The indirect composite material was applied to the surface of the monolithic zirconia specimens. Shear bond strength value of each specimen was evaluated after thermocycling. The fractured surface of each specimen was examined with a stereomicroscope and a scanning electron microscope to assess the failure types. The data were analyzed using one-way analysis of variance (ANOVA) and Tukey LSD tests (α=.05).RESULTSBond strength was significantly lower in untreated specimens than in sandblasted specimens (P<.05). No difference between the glaze layer and hydrofluoric acid application treated groups were observed. However, bond strength for these groups were significantly higher as compared with the other two groups (P<.05).CONCLUSIONCombined use of glaze layer & hydrofluoric acid application and silanization are reliable for strong and durable bonding between indirect composite material and monolithic zirconia.

Biomechanical evaluation between orthodontic attachment and three different materials after various surface treatments: A three-dimensional optical profilometry analysis

“…However, there are insufficient data on the success of the bonding of orthodontic attachments to monolithic zirconia and hybrid ceramic materials, as they are relatively newer materials in dental practice. [5][6][7][8] The aims of this study were therefore to evaluate the shear bond strength (SBS) of orthodontic attachments bonded to feldspathic porcelain, monolithic zirconia, and hybrid porcelain after various surface-conditioning methods and to evaluate the surface properties after debonding and polishing.…”

Comparison of the bond strength of composite resin to zirconia and composite resin to polyether ether ketone: An in vitro study

“…Sandblasting increases surface roughness to create micro-mechanical interlocks and to clean the surface by removing organic contaminants from the composite material surface. [ 13 ]…”

Effect of airborne particle abrasion and sintering order on the surface roughness and shear bond strength between Y-TZP ceramic and resin cement

“…Particularly, the high demand for esthetics in recent years has led to the development of all-ceramic restorations 2) . Dental ceramics with a high crystalline content, such as zirconia ceramics, are a popular core material for fixed restorations, due to their high fracture toughness 3,4) and chemical inertia 5,6) compared to other silica-based ceramics.…”

“…Yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) has broad applications in dentistry, such as frame material for crowns and metal-free fixed partial dental prostheses 21) , implants and abutments 22) , and orthodontic brackets 23) . Computer-aided design/ manufacturing technology has simplified the laboratory procedures required when using Y-TZP for dental prostheses 5) , as manufacturing techniques can be used to mill dental restorations from pre-sintered or fully sintered Y-TZP blocks 24,25) .…”