Effect of different surface treatments on the roughness of porcelain layer for all ceramic restoration.


  • Maryam Jawad Challo Department of Conservative Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq.
  • Shatha Abdulla Salih Department of Conservative Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq.




Laser, Porcelain repair, surface treatment, sandblasting, surface roughness, hydrofluoric acid treatments


Background: porcelain layered zirconia restoration fractures are serious and create an aesthetic and functional dilemma for the patients and the dentist. This demands the development of practical repair options that do not necessitate removing and remaking entire restorations. The roughness of the porcelain surface before repairing material application is considered a critical step.

Objectives: investigated the effect of sandblasting, fractional co2 laser, and hydrofluoric acid as a surface treatment on the roughness of porcelain layered zirconia restorations Method: forty-two zirconia blocks prepared by CAD/CAM technology in dimensions of (10 mm width × 10 mm length×3 mm thickness). Divided into three study groups according to corresponding methods of surface treatment: sandblasting group PS (N=14), fractional CO2 laser group PCO2(N=14), and hydrofluoric acid group PHF (N=14). all the specimens were subjected to surface roughness measurements using a profilometer.

Result: There was a greater surface roughness for the laser group (6.24 um) than for sandblasting surface treatments (2.59 um) and hydrofluoric acid, which shows a similar result with no statistically significant difference from sandblasting (2,14 um).

Conclusion: all surface treatments create roughness on the porcelain surface, and no significant differences were observed between sandblasting and hydrofluoric acid. Better results were observed in the CO2 laser group.


Grech J, Antunes E. Zirconia in dental prosthetics: a literature review. J Mater Res Technol. 2019;8:4956–64.

Ghodsi S, Jafarian Z. A Review on Translucent Zirconia. Eur J Prosthodont Restor Dent. 2018 May 30;26:62–74.

Habib SR, Bajunaid S, Almansour A, AbuHaimed A, Almuqrin MN, Alhadlaq A, et al. Shear Bond Strength of Veneered Zirconia Repaired Using Various Methods and Adhesive Systems: A Comparative Study. Polymers. 2021 Mar 16;13(6):910.

Meirelles PD, da Rocha LS, Pecho OE, Della Bona A, Benetti P. Intraoral repair of a chipped porcelain-zirconia restoration. J Esthet Restor Dent. 2020;32(5):444–50.

Zhang Y, Chai H, Lee JJW, Lawn BR. Chipping Resistance of Graded Zirconia Ceramics for Dental Crowns. J Dent Res. 2012 Mar;91(3):311–5.

Gupta S, Gupta B, Motwani BK, Binalrimal S, Radwan W, Robaian A, et al. The Effect of Different Surface Conditioning Techniques on the Bonding between Resin Cement & Ceramic. Coatings. 2022 Mar;12(3):399.

Addison O, Marquis P, Fleming G. The impact of hydrofluoric acid surface treatment on the performance of a porcelain laminate restorative material. Dent Mater Off Publ Acad Dent Mater. 2007 May 1;23:461–8.

Valian A, Salehi EM, Mahmoudzadeh M, Dabagh NK. Effect of different surface treatments on the repair bond strength of feldspathic porcelain. Dent Med Probl. 2021;58(1):107–13.

Çelik E, Şahin SC, Dede DÖ. Effect of surface treatments on the bond strength of indirect resin composite to resin matrix ceramics. J Adv Prosthodont. 2019 Aug;11(4):223–31.

Ahrari F, Boruziniat A, Mohammadipour HS, Alirezaei M. The effect of surface treatment with a fractional carbon dioxide laser on shear bond strength of resin cement to a lithium disilicate-based ceramic. Dent Res J. 2017;14(3):195–202.

Usumez A, Hamdemirci N, Koroglu BY, Simsek I, Parlar O, Sari T. Bond strength of resin cement to zirconia ceramic with different surface treatments. Lasers Med Sci. 2013 Jan;28(1):259–66.

Kasraei S, Atefat M, Beheshti M, Safavi N, Mojtahedi M, Rezaei-Soufi L. Effect of Surface Treatment with Carbon Dioxide (CO2) Laser on Bond Strength between Cement Resin and Zirconia. J Lasers Med Sci. 2014;5(3):115–20.

Salman Z, Hubeatir K. Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide. Eng Technol J. 2021 Mar 25;39(1B):252–61.

Jahandideh Y. Effect of Surface Treatment With Er:YAG and CO2 Lasers on Shear Bond Strength of Polyether Ether Ketone to Composite Resin Veneers. J Lasers Med Sci. 2020;11(2):153–9.

Abd El-Ghany OS, Sherief AH. Zirconia based ceramics, some clinical and biological aspects: Review. Future Dent J. 2016 Dec 1;2(2):55–64.

Matta RE, Eitner S, Stelzer SP, Reich S, Wichmann M, Berger L. Ten-year clinical performance of zirconia posterior fixed partial dentures. J Oral Rehabil. 2022;49(1):71–80.

Seabra B, Arantes-Oliveira S, Portugal J. Influence of multimode universal adhesives and zirconia primer application techniques on zirconia repair. J Prosthet Dent. 2014 Aug;112(2):182–7.

Attia A, Kern M. Long-term resin bonding to zirconia ceramic with a new universal primer. J Prosthet Dent. 2011 Nov;106(5):319–27.

Su N, Yue L, Liao Y, Liu W, Zhang H, Li X, et al. The effect of various sandblasting conditions on surface changes of dental zirconia and shear bond strength between zirconia core and indirect composite resin. J Adv Prosthodont. 2015 Jun;7(3):214–23.

Özcan M, Melo RM, Souza ROA, Machado JPB, Felipe Valandro L, Botttino MA. Effect of air-particle abrasion protocols on the biaxial flexural strength, surface characteristics and phase transformation of zirconia after cyclic loading. J Mech Behav Biomed Mater. 2013 Apr;20:19–28.

Zeighami S, Gheidari A, Mahgoli H, Rohanian A, Ghodsi S. Effect of Sandblasting Angle and Distance on Biaxial Flexural Strength of Zirconia-based Ceramics. J Contemp Dent Pract. 2017 Jun 1;18:443–7.

Straface A, Rupp L, Gintaute A, Fischer J, Zitzmann NU, Rohr N. HF etching of CAD/CAM materials: influence of HF concentration and etching time on shear bond strength. Head Face Med. 2019 Aug 8;15(1):21.

Mirhashemi A, Sharifi N, Moharrami M, Chiniforush N. Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article. J Lasers Med Sci. 2017;8(3):101–11.

Sgura R, Cavalcante M, Hern AC, Fantini CDA, Sgura R, Reis MC, et al. laser as an alternative to oven glaze. 2013.

Zarif Najafi H, Oshagh M, Torkan S, Yousefipour B, Salehi R. Evaluation of the Effect of Four Surface Conditioning Methods on the Shear Bond Strength of Metal Bracket to Porcelain Surface. Photomed Laser Surg. 2014 Dec 1;32(12):694–9.

Abdulsatar AM, Hussein BMA, Mahmood AM. Effects of Different Laser Treatments on Some Properties of the Zirconia-Porcelain Interface. J Lasers Med Sci. 2021;12:e2.

Alhassani LI, Jawad HA. Influence of Fractional CO2 Laser Irradiation on Temperature Elevation and Bonding Strength of Resin Cement to the Zirconia Ceramic. Iraqi J Laser. 2018;17(A):23–31.

Ahrari F, Heravi F, Hosseini M. CO2 laser conditioning of porcelain surfaces for bonding metal orthodontic brackets. Lasers Med Sci. 2013 Jul;28(4):1091–7.

Webb C. History of Gas Lasers, Part 2: Pulsed Gas Lasers. Opt Photonics News. 2010 Feb 1;21(2):20–7.

Yan J, Takayama N. Micro and Nanoscale Laser Processing of Hard Brittle Materials. Elsevier; 2019. 244 p.

Meister J, Franzen R, Forner K, Grebe H, Stanzel S, Lampert F, et al. Influence of the water content in dental enamel and dentin on ablation with erbium YAG and erbium YSGG lasers. J Biomed Opt. 2006 Jun;11(3):34030.

Yavuz T, Özyılmaz ÖY, Dilber E, Tobi ES, Kiliç HŞ. Effect of Different Surface Treatments on Porcelain-Resin Bond Strength. J Prosthodont Off J Am Coll Prosthodont. 2017 Jul;26(5):446–54.




How to Cite

Challo MJ, Salih SA. Effect of different surface treatments on the roughness of porcelain layer for all ceramic restoration. EDJ [Internet]. 2023 Jun. 30 [cited 2023 Sep. 27];6(1):96-103. Available from: https://pha.hmu.edu.krd/index.php/journal/article/view/214



Original Articles