Assessment of Surface Roughness and Color Stability of Glazed Versus Polished Pressed Zirconia Reinforced Lithium Silicate Restorations Under Different pH Oral Media (An In-Vitro Study)
Samar Fathy Fathy El Shihy1*, Reham Said El Basty2 and Gihan Abd Elhady El Naggar3
1Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
and A. Lecturer, Fixed Prosthodontics Division, School of Dentistry, Newgiza University,
2A. Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University,
Cairo, Egypt and Head of Fixed Prosthodontics Division, School of Dentistry, Newgiza
University, Giza, Egypt
3Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
*Corresponding Author: Samar Fathy Fathy El Shihy, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.
Received: March 11, 2022; Published: March 18, 2022
Aims: Assess the effect of the surface finish protocol of pressed zirconia reinforced lithium silicate ceramics on the surface roughness and color stability under different pH oral media.
Methodology: A total of 30 samples were used in the present study. The samples were divided into two main groups according to the surface finishing protocol (n = 15); glazed and polished group. Then, subdivided into three subgroups according to the media tested: coffee, carbonated orange juice and artificial saliva as the control group. The surface roughness was measured using optical profilometer quantitatively and with scanning electron microscope qualitatively. Also, Color parameter was measured using spectrophotometer. Afterwards, the discs were immersed in the aging solutions for 12 days simulating 1 year in-vivo. Then, the surface roughness and color change were remeasured after aging.
Result: For surface roughness results, regardless of surface finish protocol the difference between immersion solutions was statistically non-significant where (Coffee ≥ Fanta ≥ AS). Also, irrespective of immersion solutions the difference between surface finish protocol was statistically non-significant where (Glazed ≥ Polished). Regarding the color stability results, regardless of surface finish protocol the difference between immersion solutions was statistically non-significant where (Coffee > Fanta > A.S), furthermore, irrespective of immersion solutions the difference between surface finish was statistically significant where (Glazed > Polished).
Conclusion: Surface finish protocol (glazed and polished), as well as immersion media, showed no effect on the surface roughness of zirconia reinforced lithium silicate restorations. Also, Color stability was significantly affected by the surface finish protocol, while the pH immersion media showed no effect on the color stability.
Keywords: Zirconia Reinforced Lithium Silicate; Celtra Press; Surface Finish; Surface Roughness; Color Stability; Optical ProfilomAbbreviation
- Lauvahutanon Sasipin., et al. “Discoloration of various CAD/CAM blocks after immersion in coffee”. Restorative Dentistry and Endodontics1 (2017): 9-18.
- Alhabdan Alhnaouf. “Comparison of surface roughness of ceramics after polishing with different intraoral polishing systems using profilometer and SEM”. Journal of Dental Health, Oral Disorders and Therapy3 (2015): 101-111.
- Vasiliu Roxana-Diana., et al. “The Effect of Thermocycling and Surface Treatments on the Surface Roughness and Microhardness of Three Heat-Pressed Ceramics Systems”. Crystals3 (2020): 160.
- Ertaş Ertan., et al. “Color Stability of Resin Composites after Immersion in Different Drinks”. Dental Materials Journal2 (2006): 371-376.
- Stawarczyk Bogna., et al. “Discoloration of Manually Fabricated Resins and Industrially Fabricated CAD/CAM Blocks versus Glass-Ceramic: Effect of Storage Media, Duration, and Subsequent Polishing”. Dental Materials Journal3 (2012): 377-383.
- Fu Le., et al. “Glass-Ceramics in Dentistry: A Review”. Materials (Basel, Switzerland)13.5 (2020): 1049.
- Hamza Tamer A., et al. “Effect of artificial accelerated aging on surface roughness and color stability of different ceramic restorations”. Stomatological Disease and Science1 (2017): 8-13.
- Mohamed Mohamed and Maha Fouad Gomaa. "Effect of surface finishing protocols on color and translucency of zirconia reinforced lithium silicate glass-ceramic after thermo-mechanical aging and different staining solutions". Egyptian Dental Journal4 (2020): 2491-2502.
- Teja Prernahoogan and en Samarjitsingh Teja. “All-Ceramic Materials in Dentistry”. The Saint s International Dental Journal2 (2015): 91-95.
- Hallmann Lubica., et al. “Properties of hot-pressed lithium silicate glass-ceramics”. Dental Materials: Official Publication of the Academy of Dental Materials 5 (2019): 713-729.
- Stamenković Dejan D., et al. “Staining and aging-dependent changes in color of CAD-CAM materials”. The Journal of Prosthetic Dentistry5 (2021): 672-678.
- Palla Eleni-Sotiria., et al. “Color stability of lithium disilicate ceramics after aging and immersion in common beverages”. The Journal of Prosthetic Dentistry4 (2018): 632-642.
- Shamseddine Loubna., et al. “Fit of pressed crowns fabricated from two CAD-CAM wax pattern process plans: A comparative in vitro study”. The Journal of Prosthetic Dentistry1 (2017): 49-54.
- Alghazali Nabiel., et al. “Influence of the Arabic-Coffee on the Overall Color of Glazed or Polished Porcelain Veneers - In vitro Study”. The Open Dentistry Journal 13 (2019): 364-370.
- Shereen Kotb Salem; Mohammed Moustafa Shalaby. "Effect of Re-Pressing of Lithium Disilicate Ceramic with different weight percentages on Colour, Translucency and Shear Bond Strength to veneering material". Egyptian Dental Journal 66 (2020): 1627-1636.
- Vichi A., et al. “Effect of Finishing and Polishing on Roughness and Gloss of Lithium Disilicate and Lithium Silicate Zirconia Reinforced Glass Ceramic for CAD/CAM Systems”. Operative Dentistry1 (2018): 90-100.
- Kurt Meral., et al. “Effects of glazing methods on the optical and surface properties of silicate ceramics”. Journal of Prosthodontic Research2 (2020): 202-209.
- Firouz Farnaz., et al. “Effect of Three Commonly Consumed Beverages on Surface Roughness of Polished and Glazed Zirconia-Reinforced Lithium Silicate Glass Ceramics”. Frontiers in Dentistry4 (2019): 296-302.
- Kukiattrakoon Boonlert., et al. “Effect of acidic agents on surface roughness of dental ceramics”. Dental Research Journal1 (2011): 6-15.
- Dos Santos Daniela Micheline., et al. “Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics”. The Journal of Prosthetic Dentistry3 (2017): 430-436.
- Sarıkaya Işıl., et al. “Effect of surface finishing on the colour stability and translucency of dental ceramics”. BMC Oral Health 18 (2018) :40.
- Baysan Aylin., et al. “The Quantification of Surface Roughness on Root Caries Using Noncontact Optical Profilometry-An in Vitro Study”. Lasers in Dental Science4 (2018): 229-237.
- Silva TM., et al. “Polishing for glass ceramics: which protocol?”. Journal of Prosthodontic Research3 (2014): 160-170.
- Eldwakhly E., et al. “Color and translucency stability of novel restorative CAD/CAM materials”. Dental and Medical Problems4 (2019): 349-356.
- Kanat-Ertürk Burcu. “Color Stability of CAD/CAM Ceramics Prepared with Different Surface Finishing Procedures”. Journal of Prosthodontics: Official Journal of the American College of Prosthodontists2 (2020): 166-172.
- Siam R., et al. “Surface roughness and translucency of glazed lithium disilicate vs. glazed and polished zirconia-reinforced lithium silicate (in vitro study)”. International Journal of Applied Dental Sciences7 (2021): 251-258.
- Jones CS., et al. “The in vivo perception of roughness of restorations”. British Dental Journal 1 (2004): 42-45.
- Saiki Osamu., et al. “Wear characteristics of polished and glazed lithium disilicate ceramics opposed to three ceramic materials”. Journal of Oral Science1 (2016): 117-123.
- Seghi RR., et al. “Visual and instrumental colorimetric assessments of small color differences on translucent dental porcelain”. Journal of Dental Research12 (1989): 1760-1764.
- Ruyter IE., et al. “Color stability of dental composite resin materials for crown and bridge veneers”. Dental Materials: Official Publication of the Academy of Dental Materials5 (1987): 246-251.
- Johnsto WM and EC Kao. “Assessment of appearance match by visual observation and clinical colorimetry”. Journal of Dental Research5 (1989): 819-822.
- Douglas R Duane., et al. “Intraoral determination of the tolerance of dentists for perceptibility and acceptability of shade mismatch”. The Journal of Prosthetic Dentistry4 (2007): 200-208.
- Tannir Marwa., et al. “Fracture RESISTANCE and Color Stability of Two Hybrid Ceramic Veneers VERSUS LITHIUM DISILICATE GLASS CERAMIC VENEERS”. Egyptian Dental Journal2 (2018): 1473-1477.
- Alencar-Silva Flávia J., et al. “Effect of beverage solutions and toothbrushing on the surface roughness, microhardness, and color stainability of a vitreous CAD-CAM lithium disilicate ceramic”. The Journal of Prosthetic Dentistry4 (2019): 711.e1-711.e6.
- Sokkary A., et al. “Effect of Surface Finish and Acidic pH Media on the Surface Roughness and the Color Stability of Zirconium Reinforced Lithium Silicate Glass Ceramics (An In-Vitro Study)”. Egyptian Dental Journal (2017).
- Pérez María M., et al. “Color difference thresholds for computer-simulated human Gingiva”. Journal of Esthetic and Restorative Dentistry: Official Publication of the American Academy of Esthetic Dentistry2 (2018): E24-E30.
- Douglas RD and JD Brewer. “Acceptability of shade differences in metal ceramic crowns”. The Journal of Prosthetic Dentistry3 (1998): 254-260.