The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Volume  25 (2024)
Volume  24 (2023)
Volume  23 (2022)
Volume  22 (2021)
Volume  21 (2020)
Volume  20 (2019)
Volume  19 (2018)
Volume  18 (2017)
Volume  17 (2016)
Volume  16 (2015)
Volume  15 (2014)
Volume  14 (2013)
Volume  13 (2012)
Volume  12 (2011)
Volume  11 (2010)
Volume  10 (2009)
Volume  9 (2008)
Volume  8 (2007)
Volume  7 (2006)
Volume  6 (2005)
Volume  5 (2004)
Volume  4 (2003)
Volume  3 (2002)
Volume  2 (2001)
Volume  1 (1999)
Related articles

VOLUME 9 , ISSUE 2 ( February, 2008 ) > List of Articles

RESEARCH ARTICLE

The Effect of Different Light-Curing Methods on Temperature Changes of Dual Polymerizing Agents Cemented to Human Dentin

Nadia Malek Taher, Yousra Al-Khairallah, Sheikha Hamed Al-Aujan, Maha Ad'dahash

Citation Information : Taher NM, Al-Khairallah Y, Al-Aujan SH, Ad'dahash M. The Effect of Different Light-Curing Methods on Temperature Changes of Dual Polymerizing Agents Cemented to Human Dentin. J Contemp Dent Pract 2008; 9 (2):57-64.

DOI: 10.5005/jcdp-9-2-57

License: CC BY-NC 3.0

Published Online: 01-07-2009

Copyright Statement:  Copyright © 2008; The Author(s).


Abstract

Aim

This in vitro study aims to measure the temperature changes of resin luting cements cemented to human dentin when using different light curing systems for photo-activitation.

Methods and Materials

The three different types of light-curing units (LCUs) used for photoactivation were quartz-tungsten halogen (QTH), light emitting diode (LED), and plasma arc (PAC). Two types of dual cure resin cements were used [Variolink II™ (VL) and Choice™ (CH)]. Feltik Z250™ composite resin material was used to prepare composite discs. Thirty human dentin specimens were prepared for each resin luting cement (ten for each light source). A total of 60 specimens were fabricated. Resin cement was applied on a dentin bridge and covered with the prepared composite disc where specimens were fabricated. Temperature change was recorded with a digital thermometer. Results: The lowest temperature was recorded when VL and CH were photo-activated with the PAC unit. The PAC unit produced significantly lower recorded temperatures than the LED and QTH units. No significant difference appeared between QTH and LED units in terms of recorded temperature.

Results

The lowest temperature was recorded when VL and CH were photo-activated with the PAC unit. The PAC unit produced significantly lower recorded temperatures than the LED and QTH units. No significant difference appeared between QTH and LED units in terms of recorded temperature.

Conclusion

The PAC unit produced significantly lower temperature changes compared to QTH and LED curing units. The risk for temperature rise should be taken into consideration during photo-polymerization of adhesive resins with LED or QTH in deep cavities when dentin thickness is 0.5 mm.

Citation

Taher NM, Al-Khairallah Y, Al-Aujan SH, Ad'dahash M. The Effect of Different Light-Curing Methods on Temperature Changes of Dual Polymerizing Agents Cemented to Human Dentin. J Contemp Dent Pract 2008 February;(9)2:057-064.

PDF Share
  1. Louis, 2002.
  2. Int J Prosthodont 2004; 17(2):200-4.
  3. Mechanical and physical proprieties of contemporary dental luting agents. J Prosthet Dent 2003; 89:127-134.
  4. Influence of cement on a restored crown of a first premolar using finite element analysis. Int J Prosthodont 2003; 16:82-90.
  5. Effect of simulated resin-bonded fixed partial denture clinical conditions on resin cement mechanical properties. J Oral Rehabil 2003; 30:837-846.
  6. Hardening of a new resin cements cured through a ceramic inlay. Oper Dent 1999; 24(1):38-44.
  7. Composite conversion and temperature rise using conventional, plasma arc, and an experimental blue LED curing unit. J Oral Rehabil 2002; 29:662-667.
  8. Louis, 2002.
  9. Advances in light curing. Am J Dent 2000;13(special issue):77D-81D.
  10. Evaluating intensity output of curing lights in private dental offices. J Am Dent Assoc 1994; 125:992-6.
  11. Comparison of composite curing parameters: effect of light source and curing mode in conversion, temperature rise and polymerization shrinkage. Oper Dent 2006; 31(2):219-226.
  12. Candela-class high-brightness InGaN/AlGaN double-hetrostructure blue–light-emitting diodes. Appl Phys Let 1994; 64:1687-9.
  13. Curing performance of a new generation light-emitting diode dental curing unit J Am Dent Assoc 2004;135(10):1471-9.
  14. Surface hardness and polymerization heat of halogen / LED–cured composite (abstract 1745) J Dent Res 2001;80(special issue):254.
  15. Temperature change and hardness with different resin composite and photo-activation methods. Oper Dent 2005;30-4:516-521.
  16. Comparison of temperature changes in the pulp chamber induced by various light curing units, In vitro. Oper Dent 2006;31-2: 261-265.
  17. Temperature rise during polymerization of visible light-activated composite resin. Dent Mater 1988; 4:174-178.
  18. Louis, 2002.
  19. Pulp response to externally applied heat. Oral Surg Oral Med Oral Pathol 1965; 19(4):515-530.
  20. In vitro comparison of peak polymerization temperature of 5 provisional restorations resins. J Can Dent Assoc 2001; 67:36-39.
  21. Temperature rise during polymerization of light –activated resin composites. J Oral Rehabil. 1988; 15:361-366.
  22. In vitro temperature rlses during visible-Light curing of a Lining Material and aposterior composite J Oral Rehabil. 1988;15:361-366.
  23. Long-term bond between dual-polymerizing cementing agents and human hard dental tissue. Dent Mater 2006;912.
  24. Mesa lab 2006.
  25. Thermographic investigation of contemporary resin-containing dental materials. J Dent 2005; 33:593-602.
  26. The dentin substrate: structure and properties related to bonding. J Dent 1997; 25:441-58.
  27. Thermal conductivity of normal and abnormal human dentin. Arch Oral Biol 1975; 20:457-9.
  28. Temperature rises produced light sources and composites during curing. Dent Mater 1986;2:170-177.
  29. High power light emitting diode (LED) arrays versus halogen light polymerization of oral biomaterials: Barcol hardness, compressive strength and radiometric properties. Biomaterials 2002; 23:2955-2963.
  30. Influence of light intensity from different curing units upon composite temperature rise. J Oral Rehabil. 2005; 32:362-367.
  31. Update on dental composite restorations. J Am Dent Assoc 1994; 125(6):687-701.
  32. In vitro pulp chamber temperature rise during composite resin polymerization with various light-curing sources. Dent Mater 1999; 15:275-281.
  33. Effect of irradiation type (LED or QTH) on photo-activated composite shrinkage strain kinetics, temperature rise, and hardness. Eur J Oral Sci 2002; 110:471-479.
  34. Influence of light energy density on effectiveness of composite cure. Oper Dent 2001; 26(5):460-466.
  35. Effect of light intensity and exposure duration on cure of resin composite. Oper Dent 1994;19(1):26-32.
  36. Comparison of halogen, plasma and LED curing units. Oper Dent 2004;29-3:287-294.
  37. The effect of different light-curing methods on temperature changes of two types of resinluting cement. J Pak Dent Assoc 2006; 15(2):80-84.
  38. Temperature rise in the pulp chamber induced by conventional Halogen light-curing source and a plasma arc lamp. Am J Dent 2004; 17(3): 203-208.
  39. Temperature rise during adhesive and resin composite polymerization with various light curing sources. Oper Dent 2004;29-3:325-332.
  40. Temperature changes in pulpal microcirculation. Proc Finn Dent Soc 1992; 88(1):469-479.
  41. Clinical and histological evaluation of thermal injury thresholds in human teeth: A preliminary study. J Oral Rehabil 1997; 24:791-801.
  42. Guidelines for the selection, use and maintenance of visible light activation units. Br Dent J 1999; 2:384-387.
  43. A survey of output intensity and potential for depth of cure among light-curing units in depth of cure among light-curing units in clinical use. J Dent 1999; 27:235-241.
  44. Thermographic measurement of temperature change during resin composite polymerization in vivo. J Dent. 1995 Oct;23(5):267-71.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.