Abstract
Dental composites are light-curable resin-based materials with an inherent defect of polymerization shrinkage which may cause tooth deflection and debonding of restorations. The shrinkage behaviors of dental composites under four different light curing regimens were investigated by using digital image correlation (DIC) method. Experimental results showed that the shrinkage in unbonded restorations has the greatest shrinkage strain on the top surface. The bonded restorations did not show a typical centripetal shrinkage patterns as their unbonded restorations, and had greater downward displacements. Vertical curing at regular intensity caused the greatest shrinkage strain. Low-intensity curing reduced overall shrinkage at cervical margin, but did not prevent debonding after storage. Oblique curing caused asymmetric shrinkage with less deformation at tooth-shielded side and reduced shrinkage due to the attenuated polymerization rate rather than guided shrinkage direction. This studies may provide useful information for clinical usage, and further stress analysis by numerical methods.
Access provided by CONRICYT-eBooks. Download to read the full chapter text
Chapter PDF
Similar content being viewed by others
Keywords
References
Labella R, Lambrechts P, Van Meerbeek B, Vanherle G (1999) Polymerization shrinkage and elasticity of flowable composites and filled adhesives. Dent Mater 15(2):128–137
Cabrera E, de la Macorra JC (2007) Polymerization shrinkage influences microtensile bond strength. J Dent Res 86(3):227–231
Feilzer AJ, Degee AJ, Davidson CL (1993) Setting stresses in composites for 2 different curing modes. Dent Mater 9(1):2–5
Ernst CP, Meyer GR, Klocker K, Willershausen B (2004) Determination of polymerization shrinkage stress by means of a photoelastic investigation. Dent Mater 20(4):313–321
Meredith N, Setchell DJ. (1997) in vitro measurement of cuspal strain and displacement in composite restored teeth. J Dent 25(3–4):331–7
Sutton MA, Mcneill SR, Jang JS, Babai M (1988) Effects of subpixel image-restoration on digital correlation error-estimates. Opt Eng 27(10):870–877
Sutton MA, Yan JH, Tiwari V, Schreier HW, Orteu JJ (2008) The effect of out-of-plane motion on 2D and 3D digital image correlation measurements. Opt Lasers Eng 46(10):746–757
Chuang SF, Chen TY, Chang CH (2008) Application of digital image correlation method to study dental composite shrinkage. Strain 44(3):231–238
Chuang SF, Chang CH, Chen TYF (2011) Contraction behaviors of dental composite restorations—finite element investigation with DIC validation. J Mech Behav Biomed 4(8):2138–2149
Hofmann N, Denner W, Hugo B, Klaiber B (2003) The influence of plasma arc vs. Halogen standard or soft-start irradiation on polymerization shrinkage kinetics of polymer matrix composites. J Dent Res 31(6):383–393
Yoshikawa T, Burrow MF, Tagami J (2001) A light curing method for improving marginal sealing and cavity wall adaptation of resin composite restorations. Dent Mater 17(4):359–366
Yap AUJ, Ng SC, Kiow KS (2001) Soft-start polymerization: influence on effectiveness of cure and post-gel shrinkage. Oper Dent 26(3):260–266
Acknowledgements
This study was supported by Research Grant NSC-101-2320-B006-003-MY3 from the National Science Council, Taiwan.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Chuang, SF., Huang, PS., Chen, T.YF., Huang, LH., Su, KC., Chang, CH. (2018). Experimental Studies of Composite Shrinkage of Dental Restorations. In: Vo Van, T., Nguyen Le, T., Nguyen Duc, T. (eds) 6th International Conference on the Development of Biomedical Engineering in Vietnam (BME6) . BME 2017. IFMBE Proceedings, vol 63. Springer, Singapore. https://doi.org/10.1007/978-981-10-4361-1_11
Download citation
DOI: https://doi.org/10.1007/978-981-10-4361-1_11
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-4360-4
Online ISBN: 978-981-10-4361-1
eBook Packages: EngineeringEngineering (R0)