Efficacy of Different Surface Treatments on the Bond Strength of Resin cement to Zirconia Ceramic

Abstract

Purpose: The plan for this study was to anatomise the effect of alternative surface treatments to enhance bonding to zirconia. Materials and Methods: forty discs of zirconia (Prettau,zircon zhan, Italy) were prepared using Isomet 4000 precision Saw then discs were divided into 5 groups. Group 1, control; Group2, zirconia discs were treated with50-mm Al 2 O 3 particles; Group 3, zirconia discs were received hand grinding; Group 4, zirconia discs were treated by a CO2 laser and Group 5, zirconia discs were treated using ERYAG laser. Composite resin discs were constructed and cemented to zirconia samples with panavia cement. For the bond strength test, a universal testing machine was used. Results: the highest shear bond strength was recorded for (Hand grinding) group (2) while the lowest mean value was recorded for control group (1). Conclusions: Treatment of Zirconia Surfaces with hand grinding or sandblasting increased shear bond strength. Treatment of Zirconia with CO2 and ERYAG lasers increased shear bond strength of zirconia, with the CO2 laser being higher than ERYAG laser.

Laser surface texturing of zirconia-based ceramics for dental applications: A review

“…This makes the results of laser surface treatment of zirconia ceramics, with the aim of improving bond strength, highly dependent on the laser processing parameters as well as the original surface conditions of the material to be processed. Therefore, even though a considerable amount of research showed some positive effects towards an increased bond strength after laser surface treatment using different dental lasers, including CO 2 laser [226][227][228][229][230][231][232][233][234][235][236], Er:YAG laser [226,232,[236][237][238], Er,Cr:YSGG laser [233,239,240],…”