PREHEATING OF SILORANE-BASED COMPOSITES

Yıl 2022, Cilt: 1 Sayı: 1, 1 - 9, 24.04.2022

Nihan Gonulol , Emel Karaman , Duygu Tuncer

Öz

Aim: To evaluate the degree of conversion, and polymerization shrinkage of silorane-based (Filtek Silorane, 3M ESPE St. Paul, MN, USA) and dimethacrylate-based (Filtek Z550, 3M ESPE, St. Paul, MN, USA) composites after preheating procedures.
Materials and Methods: For assessing the degree of conversion, three cylindrical specimens for each experimental condition (4 °C, 21 °C, 39°C, 55°C) were built in a Teflon mold and after 24 h storage a Fourier transform infrared spectrometer was used for analyses. The volumetric polymerization shrinkage of the composite resins was determined using a video imaging device (n=10). Student’s t-test and one-way ANOVA with Tukey multiple comparison tests (p< 0.05) were used to assess the results.
Results: In terms of all tested parameters and temperatures, Filtek Z550 showed higher values than Filtek Silorane (p< 0.05). The preheated groups showed a better degree of conversion for both of the composite groups. Preheating procedures did not significantly alter volumetric polymerization shrinkage values of the tested composite groups (p>0.05).
Conclusion: Preheating caused a higher degree of conversion for silorane-based and dimethacrylate-based composites. Preheating of both silorane-based and dimethacrylate-based composites prior to polymerization may be beneficial to enhance degree of conversion.

Anahtar Kelimeler

Composite preheating, Degree of conversion, Polymerization Shrinkage, Silorane-based composites

Siloran-esaslı Kompozitlerde Ön Isıtma/Preheating of Silorane-Based Composites

Öz

Aim: To evaluate the degree of conversion,
and polymerization shrinkage of silorane-based
(Filtek Silorane, 3M ESPE St. Paul, MN, USA) and
dimethacrylate-based (Filtek Z550, 3M ESPE, St. Paul,
MN, USA) composites after preheating procedures.
Materials and Methods: For assessing degree
of conversion, three cylindrical specimens for each
experimental condition (4 °C, 21 °C, 39°C, 55°C)
were built in a Teflon mold and after 24 h storage a
Fourier transform infrared spectrometer was used for
analyses. The volumetric polymerization shrinkage of the
composite resins was determined using a video imaging
device (n=10). Student’s t-test and one-way ANOVA with
Tukey multiple comparison tests (p< 0.05) were used to
assess the results.
Results: In terms of all tested parameters and
temperatures, Filtek Z550 showed higher values than
Filtek Silorane (p< 0.05). The preheated groups showed
better degree of conversion for both of the composite
groups. Preheating procedures did not significantly alter
volumetric polymerization shrinkage values of the tested
composite groups (p>0.05).
Conclusion: Preheating caused a higher degree of
conversion for silorane-based and dimethacrylate-based
composites. Preheating of both silorane-based and
dimethacrylate-based composites prior to polymerization
may be beneficial to enhance degree of conversion.
Keywords: Composite preheating, Degree of conversion,
Polymerization Shrinkage, Silorane-based composites

Anahtar Kelimeler

Composite preheating, Degree of conversion, Polymerization Shrinkage, Silorane-based composites, Kompozit ön ısıtma, Dönüşüm derecesi, Polimerizasyon Büzülmesi, Siloran bazlı kompozitler

Kaynakça

• 1. Papacchini F, Magni E, Radovic I et al (2007) Effect of intermediate agents and pre-heating of repairing resin on composite-repair bonds. Oper Dent32:363-371
• 2. Yoon TH, Lee YK, Lim BS, Kim CW (2002) Degree of polymerization of resin composites by different light sources. J Oral Rehabil 29:1165-1173.
• 3. Lohbauer U, Rahiotis C, Krämer N, Petschelt A, Eliades G (2005) The effect of different light-curing units on fatigue behavior and degree of conversion of a resin composite. Dent Mater 21:608-615.
• 4. Fróes-Salgado NR, Silva LM, Kawano Y, Francci C, Reis A, Loguercio AD (2010) Composite pre-heating: effects on marginal adaptation, degree of conversion and mechanical properties. Dent Mater 26:908-914.
• 5. Daronch M, Rueggeberg FA, De Goes MF (2005) Monomer conversion of pre-heated composite. J Dent Res 84:663-667.
• 6. Wagner WC, Aksu MN, Neme AM, Linger JB, Pink FE, Walker S (2008) Effect of pre-heating resin composite on restoration microleakage. Oper Dent 33:72-78.
• 7. Daronch M, Rueggeberg FA, De Goes MF, Giudici R (2006) Polymerization kinetics of pre-heated composite. J Dent Res 85:38-43.
• 8. Asmussen E, Peutzfeldt A (2001) Influence of pulse-delay curing on softening of polymer structures. J Dent Res 80:1570-1573.
• 9. Hofmann N, Denner W, Hugo B, Klaiber B (2003) The influence of plasma arc vs. halogen standard or soft-start irradiation on polymerization shrinkage kinetics of polymer matrix composites. J Dent 31:383-393.
• 10. Dennison JB, Yaman P, Seir R, Hamilton JC (2000) Effect of variable light intensity on composite shrinkage. J Prosthet Dent 84: 499-505.
• 11. Palin WM, Fleming GJ, Nathwani H, Burke FJ, Randall RC (2005) In vitro cuspal deflection and microleakage of maxillary premolars restored with novel low-shrink dental composites. Dent Mater 21: 324-335.
• 12. Ilie N, Hickel R (2006) Silorane-based dental composite: behavior and abilities. Dent Mater J 25: 445-454.
• 13. Weinmann W, Thalacker C, Guggenberger R (2005)Siloranes in dental composites. Dent Mater 21:68-74.
• 14. Lien W, Vandewalle KS (2010) Physical properties of a new silorane-based restorative system. Dent Mater 26:337-344.
• 15. Mundim FM, Garcia Lda F, CruvinelDR, Lima FA, Bachmann L, Pires-de-Souza Fde C (2011) Color stability, opacity and degree of conversion of pre-heated composites. J Dent 39 suppl1:e25-29.
• 16. Lohbauer U, Zinelis S, Rahiotis C, Petschelt A, Eliades G (2009) The effect of resin composite pre-heating on monomer conversion and polymerization shrinkage. Dent Mater 25:514-519.
• 17. Ribeiro BC, BoaventuraJM, Brito-GonçalvesJd, Rastelli AN, BagnatoVS, Saad JR (2012) Degree of conversion of nanofilled and microhybrid composite resins photo-activated by different generations of LEDs. J Appl Oral Sci 20:212-217.
• 18. Kusgoz A, Ülker M, Yesilyurt C, Yoldas OH, Ozil M, Tanriver M (2011) Silorane-based composite: depth of cure, surface hardness, degree of conversion, and cervical microleakage in Class II cavities. J EsthetRestor Dent 23:324-335. 19. SharpLJ, Choi IB, Lee TE, Sy A, Suh BI (2003) Volumetric shrinkage of composites using video-imaging. J Dent 31:97-103.
• 20. Lucey S, Lynch CD, Ray NJ, Burke FM, Hannigan A (2010) Effect of pre-heating on the viscosity and microhardness of a resin composite. J Oral Rehabil 37:278-282.
• 21. Cunha LG, Alonso RC, Neves AC, de Goes MF, FerracaneJL, Sinhoreti MA (2009) Degree of conversion and contraction stress development of a resin composite irradiated using halogen and LED at two C-factor levels. Oper Dent 34: 24-31.
• 22. Boaro LC, Gonçalves F, GuimarãesTC, FerracaneJL, Pfeifer CS, Braga RR (2013) Sorption, solubility, shrinkage and mechanical properties of "low-shrinkage" commercial resin composites. Dent Mater 29:398-404.
• 23. El-Korashy DI (2010) Post-gel shrinkage strain and degree of conversion of preheated resin composite cured using different regimens. Oper Dent 35:172-179
• 24. Arrais CA, de Oliveira MT, Mettenburg D, Rueggeberg FA, Giannini M (2013) Silorane- and high filled-based "low-shrinkage" resin composites: shrinkage, flexural strength and modulus. Braz Oral Res 27:97-102.
• 25. Silikas N, Eliades G, Watts DC (2000) Light intensity effects on resin-composite degree of conversion and shrinkage strain. Dent Mater 16:292-296. 26. Rahiotis C, Kakaboura A, Loukidis M, Vougiouklakis G (2004) Curing efficiency of various types of light-curing units. Eur J Oral Sci 112:89-94.
• 27. Kleverlaan CJ, FeilzerAJ (2005) Polymerization shrinkage and contraction stress of dental resin composites. Dent Mater 21: 1150-1157.
• 28. Sideridou I, Tserki V, Papanastasiou G (2002) Effect of chemical structure on degree of conversion in light-cured dimethacrylate-based dental resins. Biomaterials 23: 1819-1829. 29. Boaro LC, Gonçalves F, GuimarãesTC, FerracaneJL, Versluis A, Braga RR (2010) Polymerization stress, shrinkage and elastic modulus of current low-shrinkage restorative composites. Dent Mater 26:1144-1150.
• 30. NaoumSJ, Ellakwa A, Morgan L, White K, Martin FE, Lee IB (2012) Polymerization profile analysis of resin composite dental restorative materials in real time. J Dent 40:64-70. 31. Walter R, Swift EJJr, Sheikh H, FerracaneJL (2009) Effects of temperature on composite resin shrinkage.Quintessence Int 40:843-847.
• 32. El-Hegazi AA (2006) The effects of temperature and light intensity on the polymerization shrinkage of light-cured composite filling materials J Contemp DentPract7:12-21.
• 33. Ilie N, Jelen E, Clementino-Luedemann T, Hickel R (2007) Low-shrinkage composite for dental application.Dent Mater J 26:149-155.
• 34. Hofmann N, Markert T, Hugo B, Klaiber B (2003) Effect of high intensity vs. soft-start halogen irradiation on light-cured resin-based composites. Part I. Temperature rise and polymerization shrinkage. Am J Dent 16: 421-430.
• 35. Tarle Z, Knezevic A, Demoli N, Meniga A, Sutaloa J, Unterbrink G, Ristic M, Pichler G. (2006) Comparison of composite curing parameters: effects of light source and curing mode on conversion, temperature rise and polymerization shrinkage. Oper Dent 31: 219-226.