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Physical properties of self-, dual-, and light-cured direct core materials

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Abstract

The objective of this study is to evaluate flexural strength, flexural modulus, compressive strength, curing temperature, curing depth, volumetric shrinkage, water sorption, and hygroscopic expansion of two self-, three dual-, and three light-curing resin-based core materials. Flexural strength and water sorption were measured according to ISO 4049, flexural modulus, compressive strength, curing temperature, and curing depth according to well-proven, literature-known methods, and the volumetric behavior was determined by the Archimedes’ principle. ANOVA was calculated to find differences between the materials’ properties, and correlation of water sorption and hygroscopic expansion was analysed according to Pearson (p < 0.05). Clearfil Photo Core demonstrated the highest flexural strength (125 ± 12 MPa) and curing depth (15.2 ± 0.1 mm) and had the highest flexural modulus (≈12.6 ± 1.2 GPa) concertedly with Multicore HB. The best compressive strength was measured for Voco Rebilda SC and Clearfil DC Core Auto (≈260 ± 10 MPa). Encore SuperCure Contrast had the lowest water sorption (11.8 ± 3.3 µg mm−3) and hygroscopic expansion (0.0 ± 0.2 vol.%). Clearfil Photo Core and Encore SuperCure Contrast demonstrated the lowest shrinkage (≈2.1 ± 0.1 vol.%). Water sorption and hygroscopic expansion had a very strong positive correlation. The investigated core materials significantly differed in the tested properties. The performance of the materials depended on their formulation, as well as on the respective curing process.

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References

  1. Schmage P, Nergiz I, Sito F, Platzer U, Rosentritt M (2009) Wear and hardness of different core build-up materials. J Biomed Mater Res B Appl Biomater 91:71–79

    Google Scholar 

  2. Yuzugullu B, Ciftci Y, Saygili G, Canay S (2008) Diametral tensile and compressive strengths of several types of core materials. J Prosthodont 17:102–107

    Article  PubMed  Google Scholar 

  3. Aksornmuang J, Nakajima M, Foxton RM, Tagami J (2007) Mechanical properties and bond strength of dual-cure resin composites to root canal dentin. Dent Mater 23:226–234

    Article  PubMed  Google Scholar 

  4. Rizkalla AS, Jones DW (2004) Mechanical properties of commercial high strength ceramic core materials. Dent Mater 20:207–212

    Article  PubMed  Google Scholar 

  5. Piwowarczyk A, Ottl P, Lauer HC, Buchler A (2002) Laboratory strength of glass ionomer cement, compomers, and resin composites. J Prosthodont 11:86–91

    Article  PubMed  Google Scholar 

  6. Medina Tirado JI, Nagy WW, Dhuru VB, Ziebert AJ (2001) The effect of thermocycling on the fracture toughness and hardness of core buildup materials. J Prosthet Dent 86:474–480

    Article  PubMed  Google Scholar 

  7. Bonilla ED, Mardirossian G, Caputo AA (2000) Fracture toughness of various core build-up materials. J Prosthodont 9:14–18

    Article  PubMed  Google Scholar 

  8. O'Mahony A, Spencer P (1999) Core build-up materials and techniques. J Ir Dent Assoc 45:84–90

    PubMed  Google Scholar 

  9. Combe EC, Shaglouf AM, Watts DC, Wilson NH (1999) Mechanical properties of direct core build-up materials. Dent Mater 15:158–165

    Article  PubMed  Google Scholar 

  10. Sahmali SM, Saygili G (2000) Compressive shear strength of core materials and restoring techniques. Int J Periodontics Restorative Dent 20:277–283

    PubMed  Google Scholar 

  11. Saygili G, Mahmali SM (2002) Comparative study of the physical properties of core materials. Int J Periodontics Restorative Dent 22:355–563

    PubMed  Google Scholar 

  12. Kovarik RE, Breeding LC, Caughman WF (1992) Fatigue life of three core materials under simulated chewing conditions. J Prosthet Dent 68:584–590

    Article  PubMed  Google Scholar 

  13. Wattanawongpitak N, Nakajima M, Ikeda M, Foxton RM, Tagami J (2009) Microtensile bond strength of etch-and-rinse and self-etching adhesives to intrapulpal dentin after endodontic irrigation and setting of root canal sealer. J Adhes Dent 11:57–64

    PubMed  Google Scholar 

  14. Kivanc BH, Gorgul G (2008) Fracture resistance of teeth restored with different post systems using new-generation adhesives. J Contemp Dent Pract 9:33–40

    PubMed  Google Scholar 

  15. Ishii T, Ohara N, Oshima A, Koizumi H, Nakazawa M, Masuno T, Matsumura H (2008) Bond strength to bovine dentin of a composite core build-up material combined with four different bonding agents. J Oral Sci 50:329–333

    Article  PubMed  Google Scholar 

  16. Stavridakis MM, Kakaboura AI, Krejci I (2005) Degree of remaining C=C bonds, polymerization shrinkage and stresses of dual-cured core build-up resin composites. Oper Dent 30:443–452

    PubMed  Google Scholar 

  17. Chutinan S, Platt JA, Cochran MA, Moore BK (2004) Volumetric dimensional change of six direct core materials. Dent Mater 20:345–351

    Article  PubMed  Google Scholar 

  18. Hubbezoglu I, Dogan A, Dogan OM, Bolayir G, Bek B (2008) Effects of light curing modes and resin composites on temperature rise under human dentin: an in vitro study. Dent Mater J 27:581–589

    Article  PubMed  Google Scholar 

  19. Jakubinek MB, O'Neill C, Felix C, Price RB, White MA (2008) Temperature excursions at the pulp-dentin junction during the curing of light-activated dental restorations. Dent Mater 24:1468–1476

    Article  PubMed  Google Scholar 

  20. Durey K, Santini A, Miletic V (2008) Pulp chamber temperature rise during curing of resin-based composites with different light-curing units. Prim Dent Care 15:33–38

    Article  PubMed  Google Scholar 

  21. Moore BK, Platt JA, Borges G, Chu TM, Katsilieri I (2008) Depth of cure of dental resin composites: ISO 4049 depth and microhardness of types of materials and shades. Oper Dent 33:408–412

    Article  PubMed  Google Scholar 

  22. Uhl A, Mills RW, Vowles RW, Jandt KD (2002) Knoop hardness depth profiles and compressive strength of selected dental composites polymerized with halogen and LED light curing technologies. J Biomed Mater Res 63:729–738

    Article  PubMed  Google Scholar 

  23. Bouschlicher MR, Rueggeberg FA, Wilson BM (2004) Correlation of bottom-to-top surface microhardness and conversion ratios for a variety of resin composite compositions. Oper Dent 29:698–704

    PubMed  Google Scholar 

  24. Ito S, Hashimoto M, Wadgaonkar B, Svizero N, Carvalho RM, Yiu C, Rueggeberg FA, Foulger S, Saito T, Nishitani Y, Yoshiyama M, Tay FR, Pashley DH (2005) Effects of resin hydrophilicity on water sorption and changes in modulus of elasticity. Biomaterials 26:6449–6459

    Article  PubMed  Google Scholar 

  25. Sideridou I, Tserki V, Papanastasiou G (2003) Study of water sorption, solubility and modulus of elasticity of light-cured dimethacrylate-based dental resins. Biomaterials 24:655–665

    Article  PubMed  Google Scholar 

  26. Ruttermann S, Kruger S, Raab WH, Janda R (2007) Polymerization shrinkage and hygroscopic expansion of contemporary posterior resin-based filling materials—A comparative study. J Dent 35:806–813

    Article  PubMed  Google Scholar 

  27. Huang C, Tay FR, Cheung GS, Kei LH, Wei SH, Pashley DH (2002) Hygroscopic expansion of a compomer and a composite on artificial gap reduction. J Dent 30:9–11

    Article  Google Scholar 

  28. EN ISO 4049:2000 Dentistry—Polymer-based filling, restorative and luting materials

  29. Rodrigues Junior SA, Zanchi CH, Carvalho RV, Demarco FF (2007) Flexural strength and modulus of elasticity of different types of resin-based composites. Braz Oral Res 21:16–21

    Article  PubMed  Google Scholar 

  30. Janda R, Roulet JF, Latta M, Ruttermann S (2006) The effects of thermocycling on the flexural strength and flexural modulus of modern resin-based filling materials. Dent Mater 22:1103–1108

    Article  PubMed  Google Scholar 

  31. Uhl A, Mills RW, Rzanny AE, Jandt KD (2005) Time dependence of composite shrinkage using halogen and LED light curing. Dent Mater 21:278–286

    Article  PubMed  Google Scholar 

  32. Cho GC, Kaneko LM, Donovan TE, White SN (1999) Diametral and compressive strength of dental core materials. J Prosthet Dent 82:272–276

    Article  PubMed  Google Scholar 

  33. Kalliyana Krishnan V, Yamuna V (1998) Effect of initiator concentration, exposure time and particle size of the filler upon the mechanical properties of a light-curing radiopaque dental composite. J Oral Rehabil 25:747–751

    Article  PubMed  Google Scholar 

  34. Kildal KK, Ruyter IE (1997) How different curing methods affect mechanical properties of composites for inlays when tested in dry and wet conditions. Eur J Oral Sci 105:353–361

    Article  PubMed  Google Scholar 

  35. Li Y, Swartz ML, Phillips RW, Moore BK, Roberts TA (1985) Effect of filler content and size on properties of composites. J Dent Res 64:1396–1401

    Article  PubMed  Google Scholar 

  36. Watts DC (1994) Elastic moduli and visco-elastic relaxation. J Dent 22:154–158

    Article  PubMed  Google Scholar 

  37. Braga RR, Cesar PF, Gonzaga CC (2002) Mechanical properties of resin cements with different activation modes. J Oral Rehabil 29:257–262

    Article  PubMed  Google Scholar 

  38. Calheiros FC, Daronch M, Rueggeberg FA, Braga RR (2008) Influence of irradiant energy on degree of conversion, polymerization rate and shrinkage stress in an experimental resin composite system. Dent Mater 24:1164–1168

    Article  PubMed  Google Scholar 

  39. Aw TC, Nicholls JI (2001) Polymerization shrinkage of densely-filled resin composites. Oper Dent 26:498–504

    PubMed  Google Scholar 

  40. Hermesch CB, Wall BS, McEntire JF (2003) Dimensional stability of dental restorative materials and cements over four years. Gen Dent 51:518–523

    PubMed  Google Scholar 

  41. Larson TD (2004) Core restoration for crown preparation. Northwest Dent 83:19–28

    PubMed  Google Scholar 

  42. Stober T, Rammelsberg P (2005) The failure rate of adhesively retained composite core build-ups in comparison with metal-added glass ionomer core build-ups. J Dent 33:27–32

    Article  PubMed  Google Scholar 

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Conflict of interest

The authors declare that they have no conflicts of interest.

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Authors and Affiliations

  1. Medical Faculty, Centre of Dentistry, Department of Operative and Preventive Dentistry and Endodontics, Heinrich-Heine-University, Moorenstr. 5, Geb. 18.13, 40225, Düsseldorf, Germany

    Stefan Rüttermann, Ian Alberts, Wolfgang H. M. Raab & Ralf R. Janda

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  1. Stefan Rüttermann
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  2. Ian Alberts
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  3. Wolfgang H. M. Raab
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  4. Ralf R. Janda
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Correspondence to Ralf R. Janda.

Additional information

Results are part of the thesis of Patrick Märtesheimer and Katja Schön.

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Rüttermann, S., Alberts, I., Raab, W.H.M. et al. Physical properties of self-, dual-, and light-cured direct core materials. Clin Oral Invest 15, 597–603 (2011). https://doi.org/10.1007/s00784-010-0405-y

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  • DOI: https://doi.org/10.1007/s00784-010-0405-y

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