[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 25, Issue 1 (1-2013) ::
J Islam Dent Assoc Iran 2013, 25(1): 28-34 Back to browse issues page
The Effect of Different Polishing Methods and Composite Resin Thickness on Temperature Rise of Composite Restorative Materials
Parvin MirzaKoucheki Boroujeni 1, Nazanin Daneshpour2, Maryam Zare Jahromi3
1- Assistant Professor and Head of Restorative Dentistry Department, School of Dentistry, Islamic Azad University, Khorasgan Branch. Esfahan, Iran , cosmeticmir@yahoo.com
2- Dentist
3- Assistant Professor, Department of Endodontic, School of Dentistry, Islamic Azad University, Khorasgan Branch. Esfahan, Iran
Abstract:   (7278 Views)
   Background and Aim : Along with improvements in aesthetics and longevity of restorations, finishing and polishing, can produce potentially injurious temperature rise within the pulp chamber. The purpose of the current study was to find whether different polishing methods and thickness of composites have any effect on temperature rise of composite restorative materials .

  Materials and Methods : Sixty composite resin specimens 9 mm in diameter were prepared and assigned to three experimental groups with three sample thicknesses (2, 3 and 4mm). Each group was divided into four subgroups randomly. Polishing in subgroups 1 and 2 (continuous and intermittent dry polishing) and subgroups 3 and 4 (continuous and intermittent wet polishing) was carried out with a slow speed contra-angle hand piece at a medium speed for 120 seconds in a roll on motion. Immediately after polishing, temperature was measured on the top and bottom surface of each sample using a laser thermometer. One and two way ANOVA, Duncan, and paired T-test was used to analyze the data .

  Results: The mean temperature rise after polishing in different methods was significant continuous dry polishing produced the maximum temperature rise. In addition, increasing the thickness of composite resin up to 4mm did not significantly affect thermal transfer from the top surface to the base during polishing .

  Conclusion : Copious use of water coolant during finishing and polishing procedures is considered a simple and effective method for pulpal protection. Increasing the thickness of composite resin does not have a significant role in compensating the heat generated during polishing procedure .

 

Keywords: Composite resin, Dental polishing, Thermal transfer
Full-Text [PDF 171 kb]   (1922 Downloads)    
Type of Study: Orginal | Subject: Restorative Dentistry
References
1. Goodis HE, Rosenberg RJ. Histologic evalua-tion of pulpal response to temperature probe placement in macaca fasciularis monkey. Oral Surg Oral Med Oral Path. 1991 Jul; 72(1):105-108.
2. Hondrum SO, Fernandez RJr. Countering fin-ishing and polishing Cl V restoration material. Oper Dent. 1997 Jan-Feb; 22(1):30-36.
3. Larato DC. Influence of a composite resin res-toration on the gingiva. J Prosth Dent. 1972 Oct; 28 (4):402-4.
4. Stanford WB, Fan PL, Wosniak WT. Effect of finishing on color and gloss of composites with different fillers. J Am Dent Asso. 1985 Feb; 110 (2):211-3.
5. Goodis HE, Stauffer P. Temperature gradients at two locations within the tooth during cavity preparation in vitro. J Prosthet Dent. 1988 Dec; 60 (6):684-8.
6. Zach L, Cohen G. Pulp response to external heat. Oral Surg. 1965 Apr; 19(4):515-30.
7. Raab WH. Temperature related changes in pul-pal microcirculation. Proc Finn Dent Soc. 1992; 88 Suppl 1:469-79.
8. Singh A, kavitha S, Lakshmi Narayanan L. A comparative evaluation of pulp chamber tem-perature rise associated with polishing of light cure composite restoration using 2 different pol-ishing systems. J Conser Dent. 2006 May; 9(1):21-31.
9. Madhavan N. An in vitro study to evaluate the rise in pulpal temperature during finishing and polishing of composite, resin modified glass ionomer and compomer restoration. [Thesis]. Karnataka, Bangalore: Rajiv Gandhi University of Health Sci; 2005.
10. Guiraldo RD, Consani S, Lympius T, Schneider L, Sinhoreti M, Correr-sobrinho L. Influence of light curing unit and thickness of residual dentin on generation of heat during composite photo activation. J Oral Sci. 2008 Jun; 50(2):137-42.
11. Raab WH, Muller H. Temperature changes in microcirculation of the dental pulp. Dtsh zahnarztl z. 1989 Jul; 44(7):496-7.
12. Watts R, Haywood C, Smith R. Thermal diffu-sion through composite restorative materials. Brit Dent J. 1983 Feb 19; 154(4):101-3.
13. Watts DC, McAndrew R, Lloyd CH. Thermal diffusivity of composite restorative materials. J Dent Res. 1987 Oct; 66(10):1576-8.
14. Amerongen JP, Penning C. Temperature chang-es during the finishing of Amalgam Restora-tions. J Prosthet Dent. 1990 Oct; 64(4):455-8.
15. Stewart GP, Bachman TA. Temperature rise due to finishing of direct restorative materials. Am J Dent. 1991 Feb; 4(1):23-8.
16. Briseno E, Ernest CP. Rise in pulp temperature during finishing and polishing of resin compo-site restoration an invitro study. Quintessence Intl. 1995 May; 26(5):361-5.
17. Daniel JP. Effect of pulpal temperature changes on finishing and polishing of composites–an in vitro study. [Thesis]. Karnataka, Bangalore: Rajiv Gandhi Univ Health Sci; 2006.
18. Antonson SA, King JB, Hardigan P. Heat Gen-eration and transmission assessment of compo-site finishing and polishing systems applied by different techniques. IJDR. 2003 March; 3:13-15.
19. Uysal T, Eldeniz AU, Usumez S, Usumez A. Thermal changes in the pulp chamber during different adhesive clean-up procedures. Angle Orthod. 2005 March; 75(2):220-5.
20. Matalon S, Slutzky H, Wassersprung N, Goldberg-Slutzky I, Ben-Amar A. Temperature rises beneath resin composite restorations dur-ing curing. Am J Dent. 2010 Aug; 23(4):223-6.
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA

XML     Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
MirzaKoucheki Boroujeni P, Daneshpour N, Zare Jahromi M. The Effect of Different Polishing Methods and Composite Resin Thickness on Temperature Rise of Composite Restorative Materials. J Islam Dent Assoc Iran. 2013; 25 (1) :28-34
URL: http://jidai.ir/article-1-1320-en.html
Volume 25, Issue 1 (1-2013) Back to browse issues page
Journal of Islamic Dental Association of Iran

AWT IMAGE

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly
Persian site map - English site map - Created in 0.05 seconds with 32 queries by YEKTAWEB 3925