International Journal of Clinical Pediatric Dentistry

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VOLUME 3 , ISSUE 3 ( September-December, 2010 ) > List of Articles


Staining of a Conventional and a Nanofilled Composite Resin Exposed in vitro to Liquid Ingested by Children

Amit Khatri, B Nandlal

Citation Information : Khatri A, Nandlal B. Staining of a Conventional and a Nanofilled Composite Resin Exposed in vitro to Liquid Ingested by Children. Int J Clin Pediatr Dent 2010; 3 (3):183-188.

DOI: 10.5005/jp-journals-10005-1074i

License: CC BY-NC 4.0

Published Online: 01-09-2010

Copyright Statement:  Copyright © 2010; The Author(s).


Aims and objective : To evaluate and compare the effect of coffee, chocolate drink and food dye on the color stability of conventional composite resin and nanocomposite resin. Design : The study sample consists of microhybrid composite and other nanocomposite of shade B1. 40 disks of each material with a diameter of 18 mm and thickness of 1 mm were prepared before discoloration procedure specimens were measured for L* a* b* values and then 10 specimens of each subgroup were immersed in each of three staining solution. The 10 remaining specimens of each main group were immersed in control solution. Discoloration values were analyzed at baseline, 1 week and 4 weeks following immersion in staining solution. The color and color difference of each specimen were measured by spectrophotometer. L* a * b* values of each specimens were measured 3 times by placing each specimen on the measuring head. Resistance to staining effect is expressed in ΔE unit and was calculated from the mean ΔL* a* and Δb* values for each specimens with the following formula. Equation : ΔE* = [(ΔL*) 2 + (Δa*) + (Δb*) 2] ½. Result : Result of study showed that nanocomposite is more stain resistant and color change ΔE*. Conventional composite demonstrates unacceptable color change ΔE* more especially in specimens immersed in coffee. Conclusion : The result of this study indicated tested conventional composite resin was more susceptible to change in color in various media over an extended period of time as compared to nanocomposite.

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  1. Mohan M, Shey Z, Vaidyanathan J, Vaidyanathan TK, Munisamy S, Janal M. Color changes of restorative materials exposed in vitro to cola beverage. Pediatr Dent 2008 Jul-Aug;30(4):309-316
  2. An application of nanotechnology is advanced dental materials. J Am Dent Assoc 2003 Oct;134(10): 1382-1389
  3. Color stability of restorative resins. Quintessence Int 1991 Sep;22(9):733-737
  4. Color stability of ionomer and resin composite restoratives. Oper Dent 2001;26:166-171
  5. Optical properties of four esthetic restorative materials after accelerated aging. Am J Dent 2006 Jun;19(3):155-158
  6. In vitro staining of resin composites by liquids ingested by children. Pediatr Dent 2008 Jul-Aug;30(4):317-322
  7. Color Stability of tooth-colored restorative materials. Eur J Prosthodont Restor Dent 2005 Jun;13(2):51-56
  8. The effect of surface finishing and storage solutions on the color stability of resinbased composites. J Am Dent Assoc 2004 May;135(5):587-594
  9. Staining of posterior resin restorative materials. Quintessence Int 1987 Dec;18(12):823-827
  10. Color stability of resin- based filling materials after aging when cured with plasma or halogen light. Eur J Oral Sci 2005 Jun;113(3): 251-257
  11. A colorimetric study of coffee and tea staining of four composite resins. J Oral Rehabil 1977 Oct;4(4): 311-322
  12. Precision of in vivo colorimetric assessments of teeth. J Prosthet Dent 1997 May;77(5):464-470
  13. Using a computer color-matching system in color reproduction of porcelain restorations. Part 3: A newly developed spectrophotometer designed for clinical application. Int J Prosthodont 1994 Jan- Feb;7(1):50-55
  14. Direct applications of a nanocomposite resin system: Part 1–The evolution of contemporary composite materials. Pract Proceed Aesthet Dent 2004 Jul;16(6):417-422
  15. In vitro colorimetric evaluation of the efficacy of various bleaching methods and products. Quintessence Int 2006 Jul-Aug;37(7):515-526
  16. Effect of five staining solution on the colour stability of two acrylics and three composite resins based provisional restorations. Eur J Prosthodont Restor Dent 2006 Mar;14(1):2-6
  17. Dental material and their selection. 4th ed. Chicago, llniois: Quintessence Publishing Co Inc; 1989
  18. Color stability of new composite restorative materials under accelerated aging. J Dent Res 1980 Dec;59(12):2071-2074.
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