Fracture resistance of lithium disilicate ceramic cemented on dentin with different curing strategies

Main Article Content

Nanthiphorn Pongam
Kallaya Suputtamongkol
Pong Pongprueksa


Objectives: To determine the effect of lithium disilicate ceramic thickness and curing mode of resin cement on the compressive fracture resistance of ceramic restored on dentin.

Methods: The ceramic disk-shaped specimens with a diameter of 7-mm with different thickness of 0.8-mm and 1.5-mm were produced equally from CAD/CAM lithium disilicate ceramic block (e.max CAD). The specimen disk was cemented on flattened dentin using universal adhesive (Single Bond Universal; SBU) with resin cement (RelyX Ultimate; ULT) in two different curing modes (n=8); 1) light-curing of adhesive and resin cement (LL) and 2) co-curing of adhesive through light-curing of resin cement (AL). The compressive fracture load was indented perpendicular to the restorative surface using a universal testing machine until the restoration was fractured. The fracture loading (N) was statistically analyzed using two-way ANOVA and Tukey’s Post-Hoc test (α=0.05).

Results: The ceramic thickness and curing mode of resin cement were statistically significant at p<0.05. The thicker restorative material could withstand higher fracture resistance. The cementation with adhesive and resin cement in light-curing mode SBU/ULT(LL) performed better fracture resistance than co-curing mode SBU/ULT(AL) at the same thickness.

Conclusion: The adequate thickness of lithium disilicate ceramic improved fracture resistance. The separately light-curing on adhesive and cement has been recommended for adhesive cementation to increase the fracture resistance of restoration.


Download data is not yet available.

Article Details

How to Cite
Pongam N, Suputtamongkol K, Pongprueksa P. Fracture resistance of lithium disilicate ceramic cemented on dentin with different curing strategies. M Dent J [Internet]. 2021 Jun. 25 [cited 2023 Nov. 30];41(Suppl):S13-S18. Available from:
Oral Presentation(DFCT2023)


Conrad HJ, Seong WJ, Pesun IJ. Current ceramic materials and systems with clinical recommendations: a systematic review. J Prosthet Dent 2007; 98: 389-404.

Zhang Y, Kelly JR. Dental Ceramics for Restoration and Metal Veneering. Dent Clin North Am 2017; 61: 797-819.

Gehrt M, Wolfart S, Rafai N, Reich S, Edelhoff D. Clinical results of lithium-disilicate crowns after up to 9 years of service. Clin Oral Investig 2013; 17: 275-84.

Dhima M, Paulusova V, Carr AB, Rieck KL, Lohse C, Salinas TJ. Practice-based clinical evaluation of ceramic single crowns after at least five years. J Prosthet Dent 2014; 111: 124-30.

Burke FJ. Fracture resistance of teeth restored with dentin-bonded crowns constructed in a leucite-reinforced ceramic. Dent Mater 1999; 15: 359-62.

Benetti AR, Peutzfeldt A, Asmussen E, Pallesen U, Franco EB. Influence of curing rate on softening in ethanol, degree of conversion, and wear of resin composite. Am J Dent 2011; 24:115-18.

Lührs AK, Pongprueksa P, De Munck J, Geurtsen W, Van Meerbeek B. Curing mode affects bond strength of adhesively luted composite CAD/CAM restorations to dentin. Dent Mater 2014; 30: 281-91.

Pashley DH, Tao L, Boyd L, King GE, Horner JA. Scanning electron microscopy of the substructure of smear layers in human dentine. Arch Oral Biol 1988; 33: 265-70.

Tribst JPM, Dal Piva AMO, Penteado MM, Borges ALS, Bottino MA. Influence of ceramic material, thickness of restoration and cement layer on stress distribution of occlusal veneers. Braz Oral Res 2018; 32: e118.

Sieper K, Wille S, Kern M. Fracture strength of lithium disilicate crowns compared to polymer-infiltrated ceramic-network and zirconia reinforced lithium silicate crowns. J Mech Behav Biomed Mater 2017; 74: 342-48.

Chen C, Trindade FZ, de Jager N, Kleverlaan CJ, Feilzer AJ. The fracture resistance of a CAD/CAM Resin Nano Ceramic (RNC) and a CAD ceramic at different thicknesses. Dent Mater 2014; 30: 954-62.

Andrade JP, Stona D, Bittencourt HR, Borges GA, Burnett LHJ, Spohr AM. Effect of Different Computer-aided Design/Computer-aided Manufacturing (CAD/CAM) Materials and Thicknesses on the Fracture Resistance of Occlusal Veneers. Oper Dent 2018; 43: 539-48.

Sasse M, Krummel A, Klosa K, Kern M. Influence of restoration thickness and dental bonding surface on the fracture resistance of full-coverage occlusal veneers made from lithium disilicate ceramic. Dent Mater 2015; 31: 907-15.

Arrais CA, Rueggeberg FA, Waller JL, de Goes MF, Giannini M. Effect of curing mode on the polymerization characteristics of dual-cured resin cement systems. J Dent 2008; 36: 418-26.

Kanehira M, Finger WJ, Hoffmann M, Endo T, Komatsu M. Relationship between degree of polymerization and enamel bonding strength with self-etching adhesives. J Adhes Dent 2006; 8: 211-16.

Cadenaro M, Antoniolli F, Sauro S, Tay FR, Di Lenarda R, Prati C, et al. Degree of conversion and permeability of dental adhesives. Eur J Oral Sci 2005; 113: 525-30.

Van Landuyt KL, Snauwaert J, De Munck J, Coutinho E, Poitevin A, Yoshida Y, et al. Origin of interfacial droplets with one-step adhesives. J Dent Res 2007; 86: 739-44.

Lührs AK, De Munck J, Geurtsen W, Van Meerbeek B. Composite cements benefit from light-curing. Dent Mater 2014; 30: 292-301.