Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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Influence of inorganic composition and filler particle morphology on the mechanical properties of self-adhesive resin cements

  • Received : 2021.12.19
  • Accepted : 2022.03.03
  • Published : 2022.08.31
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Abstract

Objectives: This study aimed to evaluate the influence of inorganic composition and filler particle morphology on the mechanical properties of different self-adhesive resin cements (SARCs). Materials and Methods: Three SARCs including RelyX Unicem-2 (RUN), Maxcem Elite (MAX), and Calibra Universal (CAL) were tested. Rectangular bar-shaped specimens were prepared for flexural strength (FS) and flexural modulus (FM) and determined by a 3-point bending test. The Knoop microhardness (KHN) and top/bottom microhardness ratio (%KHN) were conducted on the top and bottom faces of disc-shaped samples. Sorption (Wsp) and solubility (Wsl) were evaluated after 24 hours of water immersion. Filler morphology was analyzed by scanning electron microscopy and X-ray energy dispersive spectroscopy (EDS). FS, FM, %KHN, Wsp, Wsl, and EDS results were submitted to 1-way analysis of variance and Tukey's post-hoc test, and KHN also to paired t-test (α = 0.05). Results: SARC-CAL presented the highest FS value, and SARC-RUN presented the highest FM. SARC-MAX and RUN showed the lowest Wsp and Wsl values. KHN values decreased from top to bottom and the SARCs did not differ statistically. Also, all resin cements presented carbon, aluminum, and silica in their composition. SARC-MAX and RUN showed irregular and splintered particles while CAL presented small and regular size particles. Conclusions: A higher mechanical strength can be achieved by a reduced spread in grit size and the filler morphology can influence the KHN, as well as photoinitiators in the composition. Wsp and Wsl can be correlated with ions diffusion of inorganic particles.

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References

  1. Madruga FC, Ogliari FA, Ramos TS, Bueno M, Moraes RR. Calcium hydroxide, pH-neutralization and formulation of model self-adhesive resin cements. Dent Mater 2013;29:413-418. https://doi.org/10.1016/j.dental.2013.01.004
  2. Manso AP, Carvalho RM. Dental cements for luting and bonding restorations: self-adhesive resin cements. Dent Clin North Am 2017;61:821-834. https://doi.org/10.1016/j.cden.2017.06.006
  3. Miotti LL, Follak AC, Montagner AF, Pozzobon RT, da Silveira BL, Susin AH. Is conventional resin cement adhesive performance to dentin better than self-adhesive? A systematic review and meta-analysis of laboratory studies. Oper Dent 2020;45:484-495. https://doi.org/10.2341/19-153-L
  4. Ferracane JL, Stansbury JW, Burke FJ. Self-adhesive resin cements - chemistry, properties and clinical considerations. J Oral Rehabil 2011;38:295-314. https://doi.org/10.1111/j.1365-2842.2010.02148.x
  5. Kim KH, Ong JL, Okuno O. The effect of filler loading and morphology on the mechanical properties of contemporary composites. J Prosthet Dent 2002;87:642-649. https://doi.org/10.1067/mpr.2002.125179
  6. Saskalauskaite E, Tam LE, McComb D. Flexural strength, elastic modulus, and pH profile of self-etch resin luting cements. J Prosthodont 2008;17:262-268. https://doi.org/10.1111/j.1532-849X.2007.00278.x
  7. Ramos MB, Pegoraro TA, Pegoraro LF, Carvalho RM. Effects of curing protocol and storage time on the micro-hardness of resin cements used to lute fiber-reinforced resin posts. J Appl Oral Sci 2012;20:556-562. https://doi.org/10.1590/S1678-77572012000500011
  8. Pedreira AP, Pegoraro LF, de Goes MF, Pegoraro TA, Carvalho RM. Microhardness of resin cements in the intraradicular environment: effects of water storage and softening treament. Dent Mater 2009;25:868-876. https://doi.org/10.1016/j.dental.2009.01.096
  9. Vrochari AD, Eliades G, Hellwig E, Wrbas KT. Curing efficiency of four self-etching, self-adhesive resin cements. Dent Mater 2009;25:1104-1108. https://doi.org/10.1016/j.dental.2009.02.015
  10. Alkhudhairy F, AlKheraif A, Naseem M, Khan R, Vohra F. Degree of conversion and depth of cure of Ivocerin containing photo-polymerized resin luting cement in comparison to conventional luting agents. Pak J Med Sci 2018;34:253-259.
  11. International Organization for Standardization. Technical Committee. ISO/TC 106/SC 1. Dentistry-polymer-based restorative materials (ISO 4049). 4th ed. Geneva: ISO; 2009. 
  12. Nakamura T, Wakabayashi K, Kinuta S, Nishida H, Miyamae M, Yatani H. Mechanical properties of new self-adhesive resin-based cement. J Prosthodont Res 2010;54:59-64. https://doi.org/10.1016/j.jpor.2009.09.004
  13. Velo MM, Nascimento TR, Scotti CK, Bombonatti JF, Furuse AY, Silva VD, Simoes TA, Medeiros ES, Blaker JJ, Silikas N, Mondelli RF. Improved mechanical performance of self-adhesive resin cement filled with hybrid nanofibers-embedded with niobium pentoxide. Dent Mater 2019;35:e272-e285. https://doi.org/10.1016/j.dental.2019.08.102
  14. Aguiar TR, Andre CB, Ambrosano GM, Giannini M. The effect of light exposure on water sorption and solubility of self-adhesive resin cements. Int Sch Res Notices 2014;2014:610452.
  15. Gomes de Araujo-Neto V, Sebold M, Fernandes de Castro E, Feitosa VP, Giannini M. Evaluation of physico-mechanical properties and filler particles characterization of conventional, bulk-fill, and bioactive resin-based composites. J Mech Behav Biomed Mater 2021;115:104288.
  16. Aguiar TR, Di Francescantonio M, Bedran-Russo AK, Giannini M. Inorganic composition and filler particles morphology of conventional and self-adhesive resin cements by SEM/EDX. Microsc Res Tech 2012;75:1348-1352. https://doi.org/10.1002/jemt.22073
  17. Gerth HU, Dammaschke T, Zuchner H, Schafer E. Chemical analysis and bonding reaction of RelyX Unicem and Bifix composites--a comparative study. Dent Mater 2006;22:934-941. https://doi.org/10.1016/j.dental.2005.10.004
  18. Sabbagh J, Ryelandt L, Bacherius L, Biebuyck JJ, Vreven J, Lambrechts P, Leloup G. Characterization of the inorganic fraction of resin composites. J Oral Rehabil 2004;31:1090-1101. https://doi.org/10.1111/j.1365-2842.2004.01352.x
  19. Pan Y, Xu X, Sun F, Meng X. Surface morphology and mechanical properties of conventional and self-adhesive resin cements after aqueous aging. J Appl Oral Sci 2018;27:e20170449.
  20. Zhou M, Drummond JL, Hanley L. Barium and strontium leaching from aged glass particle/resin matrix dental composites. Dent Mater 2005;21:145-155. https://doi.org/10.1016/j.dental.2004.02.009
  21. Polydorou O, Konig A, Hellwig E, Kummerer K. Long-term release of monomers from modern dental-composite materials. Eur J Oral Sci 2009;117:68-75. https://doi.org/10.1111/j.1600-0722.2008.00594.x
  22. Salazar DC, Dennison J, Yaman P. Inorganic and prepolymerized filler analysis of four resin composites. Oper Dent 2013;38:E201-E209. https://doi.org/10.2341/12-474-L
  23. Timmons S, Cobb D, Stanford C, Dawson D, Denehy J, Vargas M, Asmussen C, Wefel J. Post-operative sensitivity of bonded ceramic posterior inlays and onlays; Proceedings of 2004 IADR/AADR/CADR General Session (Honolulu, Hawaii); 2004 Mar 12; Honolulu, HI. Alexandria, VA: International Association for Dental Research; 2004. 
  24. Cobb D, Timmons S, Stanford C, Dawson D, Denehy J, Vargas M, Asmussen C, Wefel J. Clinical outcomes of ceramic inlays/onlays luted with two bonding systems; Proceedings of 2004 IADR/AADR/CADR General Session (Honolulu, Hawaii); 2004 Mar 12; Honolulu, HI. Alexandria, VA: International Association for Dental Research; 2004. 
  25. Marghalani HY. Sorption and solubility characteristics of self-adhesive resin cements. Dent Mater 2012;28:e187-e198. https://doi.org/10.1016/j.dental.2012.04.037
  26. Tanaka J, Hashimoto T, Stansbury JW, Antonucci JM, Suzuki K. Polymer properties on resins composed of UDMA and methacrylates with the carboxyl group. Dent Mater J 2001;20:206-215. https://doi.org/10.4012/dmj.20.206