Comparison of the Effect of Three methods of Porcelain Surface Treatment on Shear Bond Strength of Composite to Porcelain

Abstract

Background and Aim: Several methods are available for intraoral repair of chipped porcelain restorations by composite resin. Also, there is still controversy regarding the best method of porcelain repair in terms of bond strength and cost effectiveness. This study aimed to compare three methods of porcelain surface treatment on shear bond strength (SBS) of composite to porcelain. Materials and Methods: This in vitro, experimental study was conducted on 30 porcelain blocks with a metal base in three groups. In group 1, porcelain surface was etched with hydrofluoric (HF) acid and silanized. After the application of bonding agent, several composite increments with 2mm thickness were applied on the porcelain surface. In group 2, porcelain surface was sandblasted with 50µaluminum oxide particles, etched and silanized. In group 3, grooves with 2mm length and 0.5 mm depth were created on the porcelain surface. The surface was then etched and silanized. Bonding agent and composite were then applied. The samples were then mounted in acrylic resin, stored in water for one week and subjected to thermocycling. The SBS was then measured using a universal testing machine. The SBS data were compared among the three groups using one-way ANOVA. Results: The mean SBS was 9.13±6.09, 12.71±9.82 and 11.44±7.37 MPa in groups 1-3, respectively. No significant difference in bond strength was noted among the three groups (P>0.05). Conclusion:No significant difference exists among the three surface treatment methods evaluated in this study in terms of SBS of composite to porcelain.

Shear Bond Strength of Composite Repair Material to Ceramo-metallic and zirconium Restorations Using A New Adhesive System

“…Metal and zirconia specimens received chair side airborne particle abrasion with 50µm aluminum oxide (Al 2 O 3 ) particles at 2 bar pressure using an intraoral air abrasion device for 20 sec from a distance of 10mm perpendicularly to the surface in agreement with previous studies (10) . Metal (Nickel Chromium alloy) sandblasting with Al 2 O 3 particles can form a passive film made of oxides that bond to reactive groups contains bonding agent.…”

Evaluation of the effect of surface roughness and modification of implant abutment axial wall on the retention of zirconium oxide copings before and after thermocycling

“…The retention of cemented restorations depends on the abutment geometry, surface roughness, and the type of cement ( 10 , 11 ).…”

The Comparison of Different Surface Preparation Methods in Terms of Shear Bond Strength of Tri-ceram Porcelaintitanium Alloy

“…Several studies have been carried out to investigate the effects of surface preparation on shear bond strength (SBS) of metal-porcelain complex. The SBS values for titanium-porcelain complex have been evaluated by several methods such as acid etching (1-17), alumina airborne-particle abrasion (7)(8)(9)(10)(11)(12)(13)(14)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), laser irradiation (6,15,16,22,27,30), fluoride etchant application (8,9,12,13), nanotechnology (10), machining/milling/thermic treatments (8,9,13,23,26,31) and cooperative use of simple surface preparation methods (2)(3)(4)9). The SBS has also been investigated for the influence of various parameters such as acid types and concentrations (2)(3)(4)…”

“…The SBS has also been investigated for the influence of various parameters such as acid types and concentrations (2)(3)(4)9), treatment with and without vacuum (3), laser types (6,16,30), radiation power of laser irradiation (15,27;30), size of Al 2 O 3 particles (22,23,25,26,28), resin cements/ bonding agents (3,16,17,21,25,26,(32)(33)(34)(35), surface coating (20,24,36,37), interfacial oxidation (38)(39)(40), ceramic types (5,7,15,41,42). Duration and temperature for surface preparation (2,5,8,9,13,15), firing temperature (20,43), storage in water and water loading (7,9,11,16,…”

“…In the other words, a completed picture has not been obtained yet. Therefore, the studies on the SBS of titanium-ceramic complex are still interest of clinical research, and such studies appear frequently on the recent literature (5,10,11,13,14,18,(28)(29)(30)35,42). For these reasons, a new study done by using the simple surface preparation methods and specific parameters may contribute to complementary studies in this field.…”