Statement of problem
Even though mechanical retentive features, such as grooves, are incorporated into the surface of titanium alloy temporary cylinders, a reliable bond to veneering provisional materials is not always achievable for screw-retained provisional implant restorations. There is insufficient information about the effect of tribochemical silica coating on the bond strength between provisional materials and grooved titanium alloy temporary cylinders.
The purpose of this study was to evaluate, in vitro, the effect of an airborne-particle abrasion and silica-coating technique on the bond strength between grooved titanium alloy temporary cylinders and provisional veneering bisphenol-A glycidyl methacrylate and polymethyl methacrylate materials.
Material and methods
Forty grooved titanium alloy (Ti-6Al-4V) internal connection implant temporary cylinders were used. A disc of veneering material (7.1 × 3.4 mm) was created around the midsection of each cylinder. Forty specimens were divided into 4 groups (n=10): group NoTxPMMA, no surface treatment and polymethyl methacrylate veneering material; group NoTxBisGMA, no surface treatment and BisGMA veneering material; group AbPMMA, airborne-particle abrasion, silica-coating surface treatment (Rocatec), and polymethyl methacrylate; and group AbBisGMA, airborne-particle abrasion, silica-coating surface treatment (Rocatec), and BisGMA. Each specimen was subjected to ultimate shear load testing at the interface of the veneering material and the temporary cylinder in a universal testing machine at a constant crosshead speed of 5 mm/min. Data were analyzed with a 1-way ANOVA (α=.05) followed by post hoc Student-Newman-Keuls test. Each specimen underwent surface observation with a light microscope at ×40 magnification to compare fracture patterns.
Airborne-particle abrasion and silica-coating surface treatment significantly lowered the shear bond strength (P<.05). The type of provisional material did not significantly affect the shear bond strength, with or without surface treatment. Group AbBisGMA demonstrated the lowest mean value (3.49 MPa) compared to the other groups.
Airborne-particle abrasion and silica-coating treatment did not improve the bond between grooved titanium alloy temporary cylinders and provisional veneering materials. It weakened the provided mechanical retention, especially when it was used with BisGMA veneering material. Material choice, whether it was polymethyl methacrylate or BisGMA, did not make a statistically significant difference.
To read this article in full you will need to make a payment
Purchase one-time access:Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
One-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:Subscribe to Journal of Prosthetic Dentistry
Already a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
- Screw-versus cement-retained implant restorations: current concepts.Implant Dent. 2010; 19: 8-15
- Immediate fixed restoration of the edentulous maxilla after implant placement.J Oral Maxillofac Surg. 2005; 63: 97-110
- Clinical performance of provisional screw-retained metal-free acrylic restorations in an immediate loading implant protocol: a 242 consecutive patients' report.Clin Oral Implants Res. 2010; 21: 1360-1369
- ISO 10477:2004. Dentistry – polymer-based crown and bridge materials. ISO, Geneva2004
- Shear bond strength of resin composite veneering material to gold alloy with varying metal surface preparations.J Prosthet Dent. 2001; 86: 315-319
- A brief history and current status of metal-and ceramic surface-conditioning concepts for resin bonding in dentistry.Quintessence Int. 1998; 29: 713-724
- Evaluation of three silicoating methods for resin-bonded prostheses.Scand J Dent Res. 1993; 101: 243-251
- Durability of resin bonds to pure titanium.J Prosthodont. 1995; 4: 16-22
- Silane to enhance the bond between polymethyl methacrylate and titanium.J Prosthet Dent. 1995; 73: 428-431
- The shear strength of polymethyl methacrylate bonded to titanium partial denture framework material.J Prosthet Dent. 1993; 70: 410-413
- Effectiveness of different adhesive primers on the bond strength between an indirect composite resin and a base metal alloy.J Prosthet Dent. 2008; 99: 377-387
- Effect of laboratory procedures and thermocycling on the shear bond strength of resin-metal bonding systems.J Prosthet Dent. 2003; 90: 184-189
- Bond strength of composite to alloy treated with bonding systems.J Prosthodont. 1993; 2: 110-114
- Effects of sandblasting and silica-coating procedures on pure titanium.J Dent. 1994; 22: 300-306
- Study of the bond between gold alloys and porcelain.J Dent Res. 1962; 41: 1424-1437
- Primer of Biostatistics. 6th ed. McGraw-Hill, New York2005
First place winner of the Pacific Coast Society for Prosthodontics/Journal of Prosthetic Dentistry Graduate Student competition at the Pacific Coast Society for Prosthodontics annual meeting, Sunriver, Ore, June 2009.
© 2011 The Editorial Council of the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.