Effect of Surface Treatments on the Color Change and Shear Bond Strength of Porcelain Laminate Veneer | ||||
| Dental Science Updates | ||||
| Article 2, Volume 1, Issue 1, March 2020, Page 15-22 PDF (1.24 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/dsu.2020.14074.1003 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Passant Tarek Abdelhamid Hafez  1; mosaad Elgabarouny2; latifa Abdelgawad3; amr shebl4
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| 12A teeba buildings zahraa almaadi cairo egypt | ||||
| 2fixed prosthodontics, faculty of dentistry, suez canal university | ||||
| 3Oral Laser Application Department National Institute of Laser Enhanced Sciences - Cairo University | ||||
| 4fixed prosthodontics, faculty of dentistry, suez canal university. | ||||
| Abstract | ||||
| Effect of Surface Treatments on the Color Change and Shear Bond Strength of Porcelain Laminate Veneer Aim of the study: the purpose of this Invitro study to evaluate the effect of surface treatments on the color change and shear bond strength of lithium disilicate glass ceramic veneers. Materials & Methods: Twenty square samples with dimensions (8x8x2) and another twenty samples with smaller dimensions (4x4x2) were cut from five IPS e-max CAD blocks of shade A3. The discs were divided into two groups: 1) Half of the small and large blocks were subjected to hydrofluoric acid (HF); 2) the other half was subjected to Co2 laser irradiation. The conditioned samples were subdivided according to the bonding agent: A) Silane application for 60 seconds; B) Single bond universal light cured for 10 seconds. Each small sample was cemented on the top of a large sample using Rely-x veneer cement with translucent shade. The color change was measured using spectrophotometer. The shear bond strength was tested using a universal testing machine. Results: HF resulted in higher bond shear bond strength and ΔE than Co2 laser. Single bond universal resulted in higher shear bond strength values than silane. Conclusion: HF followed by either single bond universal or silane could be the best surface treatment for e-max CAD ceramic. However, Co2 laser could be a promising alternative surface treatment. | ||||
| Keywords | ||||
| Keywords: Co2 laser; Hydrofluoric acid; Lithium Disilicate | ||||
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