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Amount of polymerization shrinkage and shrinkage stress in composites and compomers for posterior restoration


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Amount of polymerization shrinkage and shrinkage stress in composites and compomers for posterior restoration

Article information

Restor Dent Endod. 2003;28(4):348-353
Publication date (electronic) : 2003 July 31
doi : https://doi.org/10.5395/JKACD.2003.28.4.348
Sung-Ho Park, Soon-Young Lee, Yong-Sik Cho, Su-Sun Kim, Chang-Jae Lee#, Young-Joo Kim#, Bong-Hee Lee#, Kouang-Sung Lee#, Byung-Duk Noh
Department of Conservative Dentistry, Yonsei University, Korea.
#College of Dentistry, Yonsei University, Korea.
Corresponding author (sunghopark@yumc.yonsei.ac.kr)

Abstract

The purpose of present study was to evaluate the polymerization shrinkage stress and amount of linear shrinkage of composites and compomers for posterior restoration.

For this purpose, linear polymerization shrinkage and polymerization stress were measured.

For linear polymerization shrinklage and polymerization stress measurement, custom made Linometer (R&B, Daejon, Korea) and Stress measuring machine was used (R&B, Daejon, Korea). Compositers and compomers were evaluated; Dyract AP (Dentsply Detrey, Gumbh. German) Z100 (3M Dental Products, St. Paul, USA) Surefil (Dentsply Caulk, Milford, USA) Pyramid(Bisco, Schaumburg, USA) Synergy Compact (Coltene, Altstatten, Switzerland), Heliomolar (Vivadent/Ivoclar, Liechtenstein), and Compoglass (Vivadent Ivoclar/Liechtenstein) were used. 15 measurements were made for each material. Linear polymerization shrinkage or polymerization stress for each material was compared with one way ANOVA with Tukey at 95% levels of confidence.

For linear shrinkage; Heliomolar, Surefil<Synergy Compact, Z100<Dyract AP<Pyramid, Compoglass F (p<0.05)

For Shrinkage stress; Heliomolar<Z100, Pyramid<Synergy Compact, Compoglass F<Dyract AP<Heliomolar HB, Surefil (p<0.05)

Keywords: Polymerization shrinkage stress; Polymerization shrinkage amount; Composite resin; Linometer; Tensiometer; Packable composite

References

1. Bausch JR, de Lange K, Davidson CR, Peters A, De Gee AJ. Clinical significance of polymerization shrinkage of composite resins. J Prosthet Dent 1982. 4859–67.
2. Eick JD, Welch FH. Polymerization shrinkage of posterior composite resins and its possible influence on postoperative sensitivity. Quintessence Int 1986. 17103–111.
3. Kemp-Scholte CM, Davidson CL. Marginal sealing of curing contraction gaps in class V composite resin restorations. J Dent Res 1988. 67841–845.
4. Roberts JC, Powers JM, Craig RG. Fracture toughness of composite and unfilled restorative resins. J Dent Res 1977. 56748.
5. Feilzer AJ, De Gee AJ, Davidson CL. Setting stress in composite resin in relation to configuration of the restoration. J Dent Res 1987. 661636–1639.
6. Feilzer AJ, De Gee AJ, Davidson CL. Increased wall-to-wall curing contraction in thin bonded resin layers. J Dent Res 1989. 6848–50.
7. Hansen EK. Effect of cavity depth and application technique on marginal adaptation of resins in dentin cavities. J Dent Res 1986. 651319–1321.
8. Krejci I, Sperr D, Lutz F. A three sited light curing technique for conventional Class II composite restorations. Quintessence Int 1987. 18125–131.
9. Lutz F, Krejci I, Barbakow F. The importance of proximal curing in posterior composite resin restorations. Quintessence Int 1992. 23605–609.
10. Park SH, Krejci I, Lutz F. A comparison of microhardness of resin composites polymerized by plasma arc or conventional visible light curing. Oper Dent 2002. 2730–37.
11. Park SH, Krejci I, Lutz F. Consistency in the amount of linear polymerization shrinkage in syringa type composite. Dent Mater 1999. 442–446.
12. Lim BS, Ferracane JL, Sakaguchi RL, Condon JR. Reduction of polymerization contraction stress for dental composites by two-step light activation. Dent Mater 2002. 18436–444.
13. Christensen GJ. Tooth colored Posterior restoration. Oper Dent 1997. 22146–148.
14. Mazer RB, Leinfelder KF. Evaluating a microfill posterior composite resin: a five-year study. J Am Dent Assoc 1992. 12332–38.
15. Davidson CL, Feilzer AJ. Polymerization shrinkage and polymerization shrinkage stress in polymer-based restoratives. J Dent 1997. 435–440.
16. de Gee AJ, Feilzer AJ, Davidson CL. True linear polymerization shrinkage of unfilled resins and composites determined with a linometer. Dent Mater 1993. 911–14.

Article information Continued

Copyright © 2003 Korean Academy of Conservative Dentistry
(open-access) :

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Fig. 1

Fig. 1

Schematic diagram of custom made linometer with a sample in place

Fig. 2

Fig. 2

Schematic drawing of the custom made polymerization shrinkage stress measuring machine with a sample in place

Fig. 3

Fig. 3

Change of the amount of linear polymerization shrinkage versus time in tested materials.

Fig. 4

Fig. 4

Change in the polymerization stress versus time.

Table 1

Restorative materials used in this study.

Table 1

Table 2

Shrinkage stress (kg/mm2)

Table 2

Table 3

Polymerization shrinkage & Flexural modulus of posterior composites

Table 3

a: Technical documentation, Coltene, Switzerland

b: Kerr Technical manual

c: Surefil technical update (4-9-99)

d: 3M Technical manual

e: Bisco home page

f: Ivoclar-Vivadent Report