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The Effect of Metal Surface Treatment before Reporcelainization for Ceramic Repair After Adhesive Fracture of Ceramo-Metallic Restoration | ||
| Medical Journal of Babylon | ||
| Article 1, Volume 12, Issue 1, 2015, Pages 47-65 | ||
| Author | ||
| Suhayla Reda Albanai | ||
| Abstract | ||
| The high cost of the precious metals has simulated interest in less expensive alloys for the casting of Crown & Bridge. Several non precious metal alloys based on Nickel and/or Cobalt Chromium alloys have become commercially available for the use with fusing porcelain (ceramic). The purpose of the present work was two folds: 1- To investigate the effect of different metal surface treatment (sandblasting, grinding and grinding followed by sandblasting) before reprocelainization (reapplication of porcelain after adhesive fracture) of the bare metal on the bond strength. 2- To give some light on the mechanism of metal ceramic bonding through the use of metallographic microscopic study. Two non-precious dental casting alloys Nickel- Chromium and Cobalt- Chromium alloys and one type of dental ceramic were used in this study. The conclusions from the study weresandblasting increases the bond strength of metal/ceramic interface for both the investigated alloys, and the Cobalt- Chromium alloy showed better bond strength with sandblasting than the Nickel- Chromium. | ||
| Keywords | ||
| Metal Surface; Reporcelainization; Ceramo; Metallic Restoration | ||
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