Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of resin thickness on the microhardness and optical properties of bulk-fill resin composites

  • Kim, Eun-Ha (Department of Conservative Dentistry, School of Dentistry, Pusan National University) ;
  • Jung, Kyoung-Hwa (Department of Conservative Dentistry, School of Dentistry, Pusan National University) ;
  • Son, Sung-Ae (Department of Conservative Dentistry, School of Dentistry, Pusan National University) ;
  • Hur, Bock (Department of Conservative Dentistry, School of Dentistry, Pusan National University) ;
  • Kwon, Yong-Hoon (Department of Dental Materials, School of Dentistry, Pusan National University) ;
  • Park, Jeong-Kil (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
  • Received : 2014.07.23
  • Accepted : 2014.12.02
  • Published : 2015.05.30
Download PDF
⟨ Previous Next ⟩

Abstract

Objectives: This study evaluated the effects of the resin thickness on the microhardness and optical properties of bulk-fill resin composites. Materials and Methods: Four bulk-fill (Venus Bulk Fill, Heraeus Kulzer; SDR, Dentsply Caulk; Tetric N-Ceram Bulk Fill, Ivoclar vivadent; SonicFill, Kerr) and two regular resin composites (Charisma flow, Heraeus Kulzer; Tetric N-Ceram, Ivoclar vivadent) were used. Sixty acrylic cylindrical molds were prepared for each thickness (2, 3 and 4 mm). The molds were divided into six groups for resin composites. The microhardness was measured on the top and bottom surfaces, and the colors were measured using Commission Internationale d'Eclairage (CIE) $L^*a^*b^*$ system. Color differences according to the thickness and translucency parameters and the correlations between the microhardness and translucency parameter were analyzed. The microhardness and color differences were analyzed by ANOVA and Scheffe's post hoc test, and a student t-test, respectively. The level of significance was set to ${\alpha}=0.05$. Results: The microhardness decreased with increasing resin thickness. The bulk-fill resin composites showed a bottom/top hardness ratio of almost 80% or more in 4 mm thick specimens. The highest translucency parameter was observed in Venus Bulk Fill. All resin composites used in this study except for Venus Bulk Fill showed linear correlations between the microhardness and translucency parameter according to the thickness. Conclusions: Within the limitations of this study, the bulk-fill resin composites used in this study can be placed and cured properly in the 4 mm bulk.

Keywords

References

  1. Lassila LV, Nagas E, Vallittu PK, Garoushi S. Translucency of flowable bulk-filling composites of various thickness. Chin J Dent Res 2012;15:31-35.
  2. Ilie N, Bucuta S, Draenert M. Bulk-fill resin-based composites: an in vitro assessment of their mechanical performance. Oper Dent 2013;38:618-625. https://doi.org/10.2341/12-395-L
  3. Czasch P, Ilie N. In vitro comparison of mechanical properties and degree of cure of bulk fill composites. Clin Oral Investig 2013;17:227-235. https://doi.org/10.1007/s00784-012-0702-8
  4. Ilie N, Kebler A, Durner J. Influence of various irradiation processes on the mechanical properties and polymerisation kinetics of bulk-fill resin based composites. J Dent 2013;41:695-702. https://doi.org/10.1016/j.jdent.2013.05.008
  5. Flury S, Hayoz S, Peutzfeldt A, Husler J, Lussi A. Depth of cure of resin composites: is the ISO 4049 method suitable for bulk fill materials? Dent Mater 2012;28:521-528. https://doi.org/10.1016/j.dental.2012.02.002
  6. Tanthanuch S, Ruenqsri P, Kukiattrakoon B. Optimal depth of cure for nanohybrid resin composite using quartz tungsten halogen and new high intensity lightemitting diode curing units. Gen Dent 2013;61:e14-e17.
  7. Finan L, Palin WM, Moskwa N, McGinley EL, Fleming GJ. The influence of irradiation potential on the degree of conversion and mechanical properties of two bulk-fill flowable resin composite base materials. Dent Mater 2013;29:906-912. https://doi.org/10.1016/j.dental.2013.05.008
  8. Price RB, Derand T, Loney RW, Andreou P. Effect of light source and specimen thickness on the surface hardness of resin composites. Am J Dent 2002;15:47-53.
  9. Ilie N, Hickel R. Investigations on a methacrylate-based flowable composite based on the SDRTM technology. Dent Mater 2011;27:348-355. https://doi.org/10.1016/j.dental.2010.11.014
  10. Bouschlicher MR, Rueggeberg FA, Wilson BM. Correlation of bottom-to-top surface microhardness and conversion ratios for a variety of resin composite compositions. Oper Dent 2004;29:698-704.
  11. Moore BK, Platt JA, Borges G, Chu TM, Katsilieri I. Depth of cure of dental resin composites: ISO 4049 depth and microhardness of types of materials and shades. Oper Dent 2008;33:408-412. https://doi.org/10.2341/07-104
  12. Yeh CL, Powers JM, Miyagawa Y. Color of selected shades of composites by reflection spectrophotometry. J Dent Res 1982;61:1176-1179. https://doi.org/10.1177/00220345820610101401
  13. Inokoshi S, Burrow MF, Kataumi M, Yamada T, Takatsu T. Opacity and color changes of tooth-colored restorative materials. Oper Dent 1996;21:73-80.
  14. Miyagawa Y, Powers JM, O'Brien WJ. Optical properties of direct restorative materials. J Dent Res 1981;60:890-894. https://doi.org/10.1177/00220345810600050601
  15. Johnston WM, Reisbick MH. Color and translucency changes during and after curing of esthetic restorative materials. Dent Mater 1997;13:89-97. https://doi.org/10.1016/S0109-5641(97)80017-6
  16. Kim IJ, Lee YK. Changes in color and color parameters of dental resin composites after polymerization. J Biomed Mater Res B Appl Biomater 2007;80:541-546.
  17. Lee YK. Influence of filler on the difference between the transmitted and reflected colors of experimental resin composites. Dent Mater 2008;24:1243-1247. https://doi.org/10.1016/j.dental.2008.01.014
  18. Campbell PM, Johnston WM, O'Brien WJ. Light scattering and gloss of an experimental quartz-filled composite. J Dent Res 1986;65:892-894. https://doi.org/10.1177/00220345860650060501
  19. Kim SJ, Son HH, Cho BH, Lee IB, Um CM. Translucency and masking ability of various opaque-shade composite resins. J Dent 2009;37:102-107. https://doi.org/10.1016/j.jdent.2008.10.002

Cited by

  1. Influence of increment thickness on light transmission, degree of conversion and micro hardness of bulk fill composites vol.104, pp.3, 2016, https://doi.org/10.1007/s10266-015-0227-0
  2. Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth vol.35, pp.5, 2016, https://doi.org/10.4012/dmj.2016-003
  3. Comparison of cytotoxicity test models for evaluating resin-based composites vol.36, pp.4, 2017, https://doi.org/10.1177/0960327116650007
  4. Color stability of bulk-fill and incremental-fill resin-based composites polished with aluminum-oxide impregnated disks vol.42, pp.2, 2017, https://doi.org/10.5395/rde.2017.42.2.118
  5. Comparison of Internal Adaptation in Class II Bulk-fill Composite Restorations Using Micro-CT vol.42, pp.2, 2017, https://doi.org/10.2341/16-023-L
  6. Effect of water storage on flexural strength of silorane and methacrylate-based composite resins vol.42, pp.4, 2017, https://doi.org/10.5395/rde.2017.42.4.309
  7. Color of bulk-fill composite resin restorative materials pp.14964155, 2017, https://doi.org/10.1111/jerd.12340
  8. Surface changes of various bulk-fill resin-based composites after exposure to different food-simulating liquid and beverages pp.14964155, 2017, https://doi.org/10.1111/jerd.12349
  9. The effect of different drinks on the color stability of different restorative materials after one month vol.40, pp.4, 2015, https://doi.org/10.5395/rde.2015.40.4.255
  10. Criteria for clinical translucency evaluation of direct esthetic restorative materials vol.41, pp.3, 2016, https://doi.org/10.5395/rde.2016.41.3.159
  11. Impact of 35% Hydrogen Peroxide on Color and Translucency Changes in Enamel and Dentin vol.29, pp.1, 2018, https://doi.org/10.1590/0103-6440201801553
  12. A comparative study of bulk-fill composites: degree of conversion, post-gel shrinkage and cytotoxicity vol.32, pp.0, 2018, https://doi.org/10.1590/1807-3107bor-2018.vol32.0017
  13. Bulk-Fill Composites: Effectiveness of Cure With Poly- and Monowave Curing Lights and Modes vol.43, pp.2, 2018, https://doi.org/10.2341/16-304-L
  14. Incremental and Bulk-fill Techniques With Bulk-fill Resin Composite in Different Cavity Configurations vol.43, pp.6, 2018, https://doi.org/10.2341/17-279-LR
  15. Influence of Bulk Thickness, Curing Time, and Curing Unit Type on the Microhardness of Different-Viscosity Bulk-Fill Composites vol.54, pp.5, 2018, https://doi.org/10.1007/s11029-018-9775-z
  16. Depth of cure of bulk fill resin composites: A systematic review pp.14964155, 2018, https://doi.org/10.1111/jerd.12394
  17. 다양한 용액에 따른 Bulk-fill 복합레진의 색조안정성 평가 vol.46, pp.4, 2019, https://doi.org/10.5933/jkapd.2019.46.4.353
  18. Characterization and Comparative Analysis of Voids in Class II Composite Resin Restorations by Optical Coherence Tomography vol.45, pp.1, 2015, https://doi.org/10.2341/18-290-l
  19. Effect of surface sealant on the surface roughness of different composites and evaluation of their microhardness vol.54, pp.1, 2015, https://doi.org/10.26650/eor.20200020
  20. Color Stability and Micro-Hardness of Bulk-Fill Composite Materials after Exposure to Common Beverages vol.13, pp.3, 2015, https://doi.org/10.3390/ma13030787
  21. Fracture resistance of endodontically treated premolars restored with bulk-fill composite resins: The effect of fiber reinforcement vol.18, pp.1, 2015, https://doi.org/10.4103/1735-3327.321871
  22. Mechanical properties of low and regular viscosity bulk fill composites in a 3D dentin cavity model vol.35, pp.3, 2015, https://doi.org/10.1080/01694243.2020.1802134
  23. Varying the Polishing Protocol Influences the Color Stability and Surface Roughness of Bulk-Fill Resin-Based Composites vol.12, pp.1, 2015, https://doi.org/10.3390/jfb12010001
  24. Utilizing Light Cure Units: A Concise Narrative Review vol.13, pp.10, 2021, https://doi.org/10.3390/polym13101596
  25. Dental Bulk-Fill Resin Composites Polymerization Efficiency: A Systematic Review and Meta-Analysis vol.5, pp.6, 2015, https://doi.org/10.3390/jcs5060149
  26. The Effect of Different Dietary and Therapeutic Solutions on the Color Stability of Resin-Matrix Composites Used in Dentistry: An In Vitro Study vol.14, pp.21, 2015, https://doi.org/10.3390/ma14216267