Evaluation of polymerization shrinkage stress in silorane-based composites

Seung-Ji Ryu; Ji-Hoon Cheon; Jeong-Bum Min

doi:10.5395/JKACD.2011.36.3.188

Journal List > J Korean Acad Conserv Dent > v.36(3) > 1056463

Go to TopGo to Top Go to BottomGo to Bottom

TOOLS

Ryu, Cheon, and Min: Evaluation of polymerization shrinkage stress in silorane-based composites

Basic Research

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2011; 36(3): 188-195.

Published online: 31 May 2011

DOI: https://doi.org/10.5395/JKACD.2011.36.3.188

Evaluation of polymerization shrinkage stress in silorane-based composites

Seung-Ji Ryu, DDS, Ji-Hoon Cheon, DDS, Jeong-Bum Min, DDS, PhD

PhD student

Professor

Department of Conservative Dentistry, Chosun University School of Dentistry, Gwangju, Korea.

Correspondence to Jeong-Bum Min, DDS, PhD. Professor, Department of Conservative Dentistry, Chosun University School of Dentistry, Gwangju, Korea. TEL, +82-62-220-3840; FAX, +82-62-223-9064; minjb@chosun.ac.kr

Received 6 March 2011 Revised 29 April 2011 Accepted 29 April 2011

Abstract

Objectives

The purpose of this study was to evaluate the polymerization shrinkage stress among conventional methacrylate-based composite resins and a silorane-based composite resin.

Materials and Methods

The strain gauge method was used for the determination of polymerization shrinkage strain. Specimens were divided by 3 groups according to various composite materials. Filtek Z-250 (3M ESPE) and Filtek P-60 (3M ESPE) were used as a conventional methacrylate-based composites and Filtek P-90 (3M ESPE) was used as a silorane-based composites. Measurements were recorded at each 1 second for the total of 800 seconds including the periods of light application. The results of polymerization shrinkage stress were statistically analyzed using One way ANOVA and Tukey test (p = 0.05).

Results

The polymerization shrinkage stress of a silorane-based composite resin was lower than those of conventional methacrylate-based composite resins (p < 0.05). The shrinkage stress between methacrylate-based composite resin groups did not show significant difference (p > 0.05).

Conclusions

Within the limitation of this study, silorane-based composites showed lower polymerization shrinkage stress than methacrylate-based composites. We need to investigate more into polymerization shrinkage stress with regard to elastic modulus of silorane-based composites for the precise result.

Keywords: Methacrylate composite, Polymerization shrinkage stress, Silorane composite, Strain gauge

Figures and Tables

Figure 1

Structure of strain gauge.

Figure 2

Schematic diagram of specimen and preparation.

Figure 3

Analysis of stress in a thick-walled acrylic ring.

Figure 4

Change of shrinkage stress (MPa) in each group for 800 seconds.

Table 1

Composites used in the study

Table 2

Values of shrinkage stress in each group at each measuring time (MPa)

Mean ± SD, Different letters indicate significant difference between groups (p < 0.05).

SD, Standard deviation.

References

1. Kwon YC, Lee IB. Polymerization shringage of kinetics of silorane-based composites. J Korean Acad Conserv Dent. 2010. 35:51–58.

2. Peutzfeldt A. Resin composites in dentistry: the monomer systems. Eur J Oral Sci. 1997. 105:97–116.

3. Braga RR, Ferracane FL. Alternatives in polymerization contraction stress management. Crit Rev Oral Biol Med. 2004. 15:176–184.

4. Davidson CL, Feilzer AJ. Polymerization shrinkage and polymerization shrinkage stress in polymer-based restoratives. J Dent. 1997. 25:435–440.

5. Kleverlaan CJ, Feilzer AJ. Polymerization shrinkage and contraction stress of dental resin composites. Dent Mater. 2005. 21:1150–1157.

6. Song YX, Inoue K. Linear shrinkage of photo-activated composite resins during setting. J Oral Rehabil. 2001. 28:335–341.

7. Lee IB, Cho BH, Son HH, Um CM. A new method to measure the polymerization shrinkage kinetics of light cured composites. J Oral Rehabil. 2005. 32:304–314.

8. Dauvillier BS, Aarnts MP, Feilzer AJ. Developments in shrinkage control of adhesive restoratives. J Esthet Dent. 2000. 12:291–299.

9. Carvalho RM, Pereira JC, Yoshiyama M, Pashley DH. A review of polymerization contraction: the influence of stress development versus stress relief. Oper Dent. 1996. 21:17–24.

10. Park J, Chang J, Ferracane J, Lee IB. How should composite be layered to reduce shrinkage stress: incremental or bulk filling? Dent Mater. 2008. 24:1501–1505.

11. Lee MR, Cho BH, Son HH, Um CM, Lee IB. Influence of cavity dimension and restoration methods on the cusp deflection of premolars in composite restoration. Dent Mater. 2007. 23:288–295.

12. Weinmann W, Thalacker C, Guggenberg R. Siloranes in dental composites. Dent Mater. 2005. 21:68–74.

13. Stansbury JW, Trujillo-Lemon M, Lu H, Ding X, Lin Y, Ge J. Conversion-dependent shrinkage stress and strain in dental resins and composites. Dent Mater. 2005. 21:56–67.

14. Papadogiannis D, Kakaboura A, Palaghias G, Eliades G. Setting characteristics and cavity adaptation of low-shrinking resin composites. Dent Mater. 2009. 25:1509–1516.

15. 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. 21:122–132.

16. Palin WM, Fleming GJP, Nathwani H, Burke FJT, Randall RC. in vitro cuspal deflection and microleakage of maxillary premolars restored with novel low-hrink dental composites. Dent Mater. 2005. 21:324–335.

17. Sakaguchi RL, Sasik CT, Bunczak MA. Strain gauge method for measuring polymerization contraction of composite restoratives. J Dent. 1991. 19:312–316.

18. Sakaguchi RL, Douglas WH. Strain gauge measurement of polymerization shrinkage. J Dent Res. 1989. 68:977.

19. Sakaguchi RL, Douglas WH, Peters MC. Curing light performance and polymerization fo composite restorative materials. J Dent. 1992. 20:183–188.

20. Lindeburg MR. Civil engineering reference manual. 1989. 5th ed. Belmont, CA: Professional;12–27.

21. Peutzfeldt A. Resin composites in dentistry: the monomer systems. Eur J Oral Sci. 1997. 105:97–116.

22. Chappelow CC, Pinzino CS, Power MD, Eick JD. Photocured epoxy/SOC matrix resin systems for dental composites. Polymer Reprints. 1997. 38:90–91.

23. Cadenaro M, Biasotto M, Scuor N, Breschi L, Davidson CL, Lenarda R. Assessment of polymerization contraction stress of three composite resins. Dent Mater. 2008. 24:681–685.

24. Braga RR, Hilton TJ, Ferracane JL. Contraction stress of flowable composite materials and their efficacy as stress-relieving layers. J Am Dent Assoc. 2003. 134:721–728.

25. Seo DG, Min SH, Lee IB. Effect of instrument compliance on the polymerization shrinkage stress measurements of dental resin composites. J Korean Acad Conserv Dent. 2009. 34:145–153.

26. Boaro LC, Gonçalves F, Guimarães TC, Ferracane JL, Versluis A, Braga RR. Polymerization stress, shrinkage and elastic modulus of current low-shrinkage restorative composites. Dent Mater. 2010. 26:1144–1150.

27. Condon JR, Ferracane JL. Assessing the effect of composite formulation on polymerization stress. J Am Dent Assoc. 2000. 131:497–503.

28. Watts DC, Vogel K, Marouf AS. Shrinkage stress reduction in resin-composites of increasing particle concentration. J Dent Res. 2002. 81(Special Issue A):308. Abstract #2444.

29. Obici AC, Sinhoreti MAC, de Goes MF, Consai S, Sobrinho LC. Effect of the photo-activation method on polymerization shrinkage of restorative composites. Oper Dent. 2002. 27:192–198.

30. Ferracane JL. Developing a more complete understanding of stresses produced in dental composites during polymerization. Dent Mater. 2005. 21:36–42.

TOOLS

Similar articles