sidebar-ad

European Journal of Prosthodontics and Restorative Dentistry

Effect of Preoxidation on the Bond Strength of Titanium and Porcelain

Abstract

Abstract - The purpose of this study was to investigate the effect of preoxidation on porcelain titanium- bond strength and the effect of paste bonder (adhesive) on the titanium porcelain bond strength. 11 specimens of commercially pure titanium (26 × 7 × 3 mm) were prepared by different heat treatments in programmable dental furnace. Identification of the oxides formed on the metal surface was conducted with an X-Ray diffractometer with CuKα radiation. Vickers hardness numbers were determine. Additional 50 specimens of commercially pure titanium were used to bond with low fusing porcelain. The bond strength was measured in a universal testing machine. X-ray diffraction analysis of the surface of pure titanium revealed that the relative peak intensity of α -Ti decreased and that of TiO2 increased with increasing firing temperature. The Vickers hardness number decreased initially as the temperature increased but it increased remarkably above 900°C & was harder in air than vacuum. The tensile shear bond strength was highest in the green stage i.e. without preoxidation of metal, and decreased above 900°C, and was the lowest in the group without paste bonder application. The difference in bond strengths was statistically highly significant for all groups. Preoxidation under vacuum before porcelain firing can effectively improve bonding. The adhesive provided with the low fusing porcelain helps in the bond between titanium & porcelain

KEYWORDS: Titanium, Porcelain, Bond strength, Preoxidation

Authors

K.M. Mahale, S.J. Nagda

Articles from this issue

Title / DOI Access Page Start Page End Purchase
Correction of Bone and Soft Tissue Deformity of the Single Implant in the Aesthetic Zone: A Case Treated with Alveolar Ridge Preservation, Modified Roll Technique and a Digitally Coded Healing Abutment
10.1922/EJPRD_1216Dhima05
no access 51 55 £10.00
Colour Stability of Acrylic Resin Denture Teeth After Immersion in Different Beverages
10.1922/EJPRD_1178Jorge06
no access 56 61 £10.00
The British Society of Prosthodontics Annual Conference 2015
no access 62 63 £10.00
A Hinged Two-Part Partial Denture Used in Conjunction with Severely Tilted T eeth: A Case Report
10.1922/EJPRD_1286Attrill03
no access 64 66 £10.00
One-Year Clinical Evaluation of a Glass Carbomer Fissure Sealant, a Preliminary Study
10.1922/EJPRD_ 1275Gorseta05
no access 67 71 £10.00
BSSPD Annual Conference Apex Hotel, Dundee 14th – 15th April 2014
no access 72 75 £10.00
Effect of Preoxidation on the Bond Strength of Titanium and Porcelain
10.1922/EJPRD_1338Mahale08
no access 76 83 £10.00
Colour Matching of Composite Resin Cements with their Corresponding Try-In Pastes
10.1922/EJPRD_1340Papazoglou05
no access 84 88 £10.00
Evaluation of Cerec Endocrowns: A Preliminary Cohort Study
10.1922/EJPRD_1278Nicolas07
no access 89 95 £10.00
  • free access Free Access
  • no access No Access
  • full access Full Access

Subscriptions