DOI QR코드

DOI QR Code

Temperature changes under demineralized dentin during polymerization of three resin-based restorative materials using QTH and LED units

  • Mousavinasab, Sayed-Mostafa (Torabinejad Dental Research Center and Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Khoroushi, Maryam (Dental Materials Research Center and Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Moharreri, Mohammadreza (Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences) ;
  • Atai, Mohammad (Iran Polymer and Petrochemical Institute)
  • Received : 2013.09.06
  • Accepted : 2014.02.17
  • Published : 2014.08.30

Abstract

Objectives: Light-curing of resin-based materials (RBMs) increases the pulp chamber temperature, with detrimental effects on the vital pulp. This in vitro study compared the temperature rise under demineralized human tooth dentin during light-curing and the degrees of conversion (DCs) of three different RBMs using quartz tungsten halogen (QTH) and light-emitting diode (LED) units (LCUs). Materials and Methods: Demineralized and non-demineralized dentin disks were prepared from 120 extracted human mandibular molars. The temperature rise under the dentin disks (n = 12) during the light-curing of three RBMs, i.e. an Ormocer-based composite resin (Ceram. X, Dentsply DeTrey), a low-shrinkage silorane-based composite (Filtek P90, 3M ESPE), and a giomer (Beautifil II, Shofu GmbH), was measured with a K-type thermocouple wire. The DCs of the materials were investigated using Fourier transform infrared spectroscopy. Results: The temperature rise under the demineralized dentin disks was higher than that under the non-demineralized dentin disks during the polymerization of all restorative materials (p < 0.05). Filtek P90 induced higher temperature rise during polymerization than Ceram.X and Beautifil II under demineralized dentin (p < 0.05). The temperature rise under demineralized dentin during Filtek P90 polymerization exceeded the threshold value ($5.5^{\circ}C$), with no significant differences between the DCs of the test materials (p > 0.05). Conclusions: Although there were no significant differences in the DCs, the temperature rise under demineralized dentin disks for the silorane-based composite was higher than that for dimethacrylate-based restorative materials, particularly with QTH LCU.

Keywords

References

  1. Ferracane JL. Resin composite-state of the art. Dent Mater 2011;27:29-38. https://doi.org/10.1016/j.dental.2010.10.020
  2. Knezević A, Tarle Z, Meniga A, Sutalo J, Pichler G. Influence of light intensity from different curing units upon composite temperature rise. J Oral Rehabil 2005;32:362-367. https://doi.org/10.1111/j.1365-2842.2004.01418.x
  3. Zach L, Cohen G. Pulp response to externally applied heat. Oral Surg Oral Med Oral Pathol 1965;19:515-530. https://doi.org/10.1016/0030-4220(65)90015-0
  4. Atai M, Motevasselian F. Temperature rise and degree of photopolymerization conversion of nanocomposites and conventional dental composites. Clin Oral Investig 2009; 13:309-316. https://doi.org/10.1007/s00784-008-0236-2
  5. Dogan A, Hubbezoglu I, Dogan OM, Bolayir G, Demir H. Temperature rise induced by various light curing units through human dentin. Dent Mater J 2009;28:253-260. https://doi.org/10.4012/dmj.28.253
  6. Yoon TH, Lee YK, Lim BS, Kim CW. Degree of polymerization of resin composites by different light sources. J Oral Rehabil 2002;29:1165-1173. https://doi.org/10.1046/j.1365-2842.2002.00970.x
  7. Bala O, Olmez A, Kalayci S. Effect of LED and halogen light curing on polymerization of resin-based composites. J Oral Rehabil 2005;32:134-140. https://doi.org/10.1111/j.1365-2842.2004.01399.x
  8. Santini A, Watterson C, Miletic V. Temperature rise within the pulp chamber during composite resin polymerisation using three different light sources. Open Dent J 2008;2:137-141. https://doi.org/10.2174/1874210600802010137
  9. Bouillaguet S, Caillot G, Forchelet J, Cattani-Lorente M, Wataha JC, Krejci I. Thermal risks from LED- and high-intensity QTH-curing units during polymerization of dental resins. J Biomed Mater Res B Appl Biomater 2005;72:260-267.
  10. Mousavinasab SM, Meyers I. Comparison of depth of cure, hardness and heat generation of LED and high intensity QTH light sources. Eur J Dent 2011;5:299-304.
  11. Hussey DL, Biagioni PA, Lamey PJ. Thermographic measurement of temperature change during resin composite polymerization in vivo. J Dent 1995;23:267-271. https://doi.org/10.1016/0300-5712(95)91149-H
  12. Durey K, Santini A, Miletic V. Pulp chamber temperature rise during curing of resin-based composites with different light-curing units. Prim Dent Care 2008;15:33-38. https://doi.org/10.1308/135576108783328409
  13. Ratih DN, Palamara JE, Messer HH. Temperature change, dentinal fluid flow and cuspal displacement during resin composite restoration. J Oral Rehabil 2007;34:693-701. https://doi.org/10.1111/j.1365-2842.2007.01764.x
  14. Yang B, Flaim G, Dickens SH. Remineralization of human natural caries and artificial caries-like lesions with an experimental whisker-reinforced ART composite. Acta Biomater 2011;7:2303-2309. https://doi.org/10.1016/j.actbio.2011.01.002
  15. Tosun G, Usumez A, Yondem I, Sener Y. Temperature rise under normal and caries-affected primary tooth dentin disks during polymerization of adhesives and resincontaining dental materials. Dent Mater J 2008;27:466-470. https://doi.org/10.4012/dmj.27.466
  16. Fanibunda KB. Thermal conductivity of normal and abnormal human dentine. Arch Oral Biol 1975;20:457-459. https://doi.org/10.1016/0003-9969(75)90233-2
  17. Chen MH. Update on dental nanocomposites. J Dent Res 2010;89:549-560. https://doi.org/10.1177/0022034510363765
  18. Shofu Dental Corporation SI: About Giomer. Available from: http://www.shofu.com/index.php/restoratives/187#name (updated 2012).
  19. Lien W, Vandewalle KS. Physical properties of a new silorane-based restorative system. Dent Mater 2010;26:337-344. https://doi.org/10.1016/j.dental.2009.12.004
  20. Goracci C, Cadenaro M, Fontanive L, Giangrosso G, Juloski J, Vichi A, Ferrari M. Polymerization efficiency and flexural strength of low-stress restorative composites. Dent Mater 2014 Apr 2. pii: S0109-5641 (14)00082-7. doi: 10.1016/j.dental.2014.03.006.[Epub ahead of print]
  21. Tarle Z, Knezevic A, Demoli N, Meniga A, Sutaloa J, Unterbrink G, Ristic M, Pichler G. Comparison of composite curing parameters: effects of light source and curing mode on conversion, temperature rise and polymerization shrinkage. Oper Dent 2006;31:219-226. https://doi.org/10.2341/05-15
  22. Bouillaguet S, Caillot G, Forchelet J, Cattani-Lorente M, Wataha JC, Krejci I. Thermal risks from LED- and high-intensity QTH-curing units during polymerization of dental resins. J Biomed Mater Res B Appl Biomater 2005;72:260-267.
  23. Tarle Z, Meniga A, Ristic M, Sutalo J, Pichler G, Davidson CL. The effect of the photopolymerization method on the quality of composite resin samples. J Oral Rehabil 1998;25:436-442. https://doi.org/10.1046/j.1365-2842.1998.00258.x
  24. Yap AU, Soh MS. Thermal emission by different lightcuring units. Oper Dent 2003;28:260-266.
  25. Mousavinasab SM, Meyers I. Curing efficacy of light emitting diodes of dental curing units. J Dent Res Dent Clin Dent Prospects 2009;3:11-16.
  26. da Silva EM, Penelas AG, Simao MS, Filho JD, Poskus LT, Guimaraes JG. Influence of the degree of dentine mineralization on pulp chamber temperature increase during resin-based composite (RBC) light-activation. J Dent 2010;38:336-342. https://doi.org/10.1016/j.jdent.2009.12.007
  27. Miletic V, Ivanovic V, Dzeletovic B, Lezaja M. Temperature changes in silorane-, ormocer-, and dimethacrylate-based composites and pulp chamber roof during light-curing. J Esthet Restor Dent 2009;21:122-131. https://doi.org/10.1111/j.1708-8240.2009.00244.x
  28. Kwon SJ, Park YJ, Jun SH, Ahn JS, Lee IB, Cho BH, Son HH, Seo DG. Thermal irritation of teeth during dental treatment procedures. Restor Dent Endod 2013;38:105-112. https://doi.org/10.5395/rde.2013.38.3.105
  29. Kwon Y, Kim SY, Chung SJ, Han YC, Lee IB, Son HH, Um CM, Cho BH. Shear bond strength of dentin bonding agents cured with a Plasma Arc curing light. J Korean Acad Conserv Dent 2008;33:213-223. https://doi.org/10.5395/JKACD.2008.33.3.213
  30. Nakajima M, Kitasako Y, Okuda M, Foxton RM, Tagami J. Elemental distributions and microtensile bond strength of the adhesive interface to normal and cariesaffected dentin. J Biomed Mater Res B Appl Biomater 2005;72:268-275.
  31. Pohto M, Scheinin A. Microscopic observations on living dental pulp. II. The effect of thermal irritants on the circulation of the pulp in the lower rat incisor. Acta Odontol Scand 1958;16:315-327. https://doi.org/10.3109/00016355809064116
  32. Al-Qudah AA, Mitchell CA, Biagioni PA, Hussey DL. Thermographic investigation of contemporary resincontaining dental materials. J Dent 2005;33:593-602. https://doi.org/10.1016/j.jdent.2005.01.010
  33. Loney RW, Price RB. Temperature transmission of highoutput light-curing units through dentin. Oper Dent 2001;26:516-520.
  34. Stanley HR Jr, Swerdlow H. Reaction of the human pulp to cavity preparation: results produced by eight different operative grinding technics. J Am Dent Assoc 1959;58:49-59.
  35. Hannig M, Bott B. In vitro pulp chamber temperature rise during composite resin polymerization with various light-curing sources. Dent Mater 1999;15:275-281. https://doi.org/10.1016/S0109-5641(99)00047-0
  36. Chung K, Greener EH. Degree of conversion of seven visible light-cured posterior composites. J Oral Rehabil 1988;15:555-560. https://doi.org/10.1111/j.1365-2842.1988.tb00192.x
  37. Navarra CO, Cadenaro M, Armstrong SR, Jessop J, Antoniolli F, Sergo V, Di Lenarda R, Breschi L. Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: an in situ Raman analysis. Dent Mater 2009;25:1178-1185. https://doi.org/10.1016/j.dental.2009.05.009
  38. Asmussen E. Restorative resins: hardness and strength vs. quantity of remaining double bonds. Scand J Dent Res 1982;90:484-489.
  39. Ferracane JL, Greener EH. Fourier transform infrared analysis of degree of polymerization in unfilled resinsmethods comparison. J Dent Res 1984;63:1093-1095. https://doi.org/10.1177/00220345840630081901
  40. Mousavinasab SM, Khoroushi M, Moharreri M. Temperature rise during primer, adhesive, and composite resin photopolymerization of a low-shrinkage composite resin under caries-like dentin lesions. ISRN Dent 2012;2012:198351.

Cited by

  1. In Vivo Pulp Temperature Changes During Class V Cavity Preparation and Resin Composite Restoration in Premolars vol.46, pp.4, 2021, https://doi.org/10.2341/20-098-c