Comparative Assessment of Cuspal Deflection in Premolars Restored with Bulk-Fill and Conventional Composite Resins

  • Ebrahim Yarmohammadi Department of Operative Dentistry, Hamedan University of Medical Sciences, Hamadan, Iran
  • Shahin Kasraei Department of Operative Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Yasaman Sadeghi Department of Operative Dentistry, Gilan University of Medical Sciences, Rasht, Iran
Keywords:
Filtek Bulk Fill, Composite Resins, Polymerization; Bicuspid, Dental Restoration; Elasticity, Dental Cavity Preparation

Abstract

Objectives: It has been reported that bulk-fill composites simplify tooth restoration with no adverse effect on the success rate. This study sought to assess the cuspal deflection of premolars with mesio-occluso-distal (MOD) cavities restored with bulk-fill and conventional posterior composite resins.

Materials and Methods: This in-vitro experimental study was conducted on 64 human maxillary premolars. MOD cavities were prepared on teeth and restored with Filtek P60 conventional composite and Filtek Bulk Fill flowable, X-tra fill, and X-tra base bulk-fill composites in four groups (n=16). Distance between the cusp tips was measured before, five minutes, 24 hours, 48 hours, and one week after restoration. The data were analyzed using repeated-measures analysis of variance (ANOVA) and Tukey’s test (α=0.05).

Results: The mean±standard deviation (SD) of cuspal deflection at five minutes after the restoration was 13.5±5.3, 12.2±3.5, 11.3±4.4, and 10.4±3.7 µm for Filtek P60, Filtek Bulk Fill, X-tra fill, and X-tra base, respectively. ANOVA showed that bulk-fill composites did not cause a significant reduction in cuspal deflection compared to P60 (P>0.05). Cuspal deflection in all groups significantly decreased with time (P<0.05).

Conclusion: Bulk-fill composites have no superiority over P60 in the reduction of cuspal deflection. The cuspal deflection was variable at different time points in all groups and decreased over time.

References

1. Usha HL, Kumari A, Mehta D, Kaiwar A, Jain N. Comparing microleakage and layering methods of silorane-based resin composite in class V cavities using confocal microscopy: An in vitro study. J Conserv Dent. 2011 Apr-Jun;14(2):164-168.
2. Giachetti L, Scaminaci Russo D, Baldini M, Goracci C, Ferrari M. Reparability of aged silorane with methacrylate-based resin composite: micro-shear bond strength and scanning electron microscopy evaluation. Oper Dent. 2012 Jan-Feb;37(1):28-36.
3. Tantbirojn D, Versluis A, Pintado MR, DeLong R, Douglas WH. Tooth deformation patterns in molars after composite restoration. Dent Mater. 2004 Jul;20(6):535-42.
4. Palin WM, Fleming GJ, Nathwani H, Burke FJ, Randall RC. In vitro cuspal deflection and microleakage of maxillary premolars restored with novel low-shrink dental composites. Dent Mater. 2005 Apr;21(4):324-35.
5. González-López S, Lucena-Martín C, de Haro-Gasquet F, Vilchez-Díaz MA, de Haro-Muñoz C. Influence of different composite restoration techniques on cuspal deflection: an in vitro study. Oper Dent. 2004 Nov-Dec;29(6):656-60.
6. 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 Mar;23(3):288-95.
7. Campodonico CE, Tantbirojn D, Olin PS, Versluis A. Cuspal deflection and depth of cure in resin-based composite restorations filled by using bulk, incremental and transtooth-illumination techniques. J Am Dent Assoc. 2011 Oct;142(10):1176-82.
8. Alrahlah A, Silikas N, Watts DC. Post-cure depth of cure of bulk fill dental resin-composites. Dent Mater. 2014 Feb;30(2):149-54.
9. Benetti AR, Havndrup-Pedersen C, Honore D, Pedersen MK, Pallesen U. Bulk-fill resin composites: polymerization contraction, depth of cure, and gap formation. Oper Dent. 2015 Mar-Apr;40(2):190-200.
10. Flury S, Peutzfeldt A, Lussi A. Influence of increment thickness on microhardness and dentin bond strength of bulk fill resin composites. Dent Mater. 2014 Oct;30(10):1104-12.
11. Idriss S, Habib C, Abduljabbar T, Omar R. Marginal adaptation of class II resin composite restorations using incremental and bulk placement techniques: an ESEM study. J Oral Rehabil. 2003 Oct;30(10):1000-7.
12. Lassila LV, Nagas E, Vallittu PK, Garoushi S. Translucency of flowable bulk-filling composites of various thicknesses. Chin J Dent Res. 2012;15(1):31-5.
13. 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 May;28(5):521-8.
14. Fleming GJ, Awan M, Cooper PR, Sloan AJ. The potential of a resin-composite to be cured to a 4mm depth. Dent Mater. 2008 Apr;24(4):522-9.
15. Ilie N, Hickel R. Investigations on a methacrylate-based flowable composite based on the SDR™ technology. Dent Mater. 2011 Apr;27(4):348-55.
16. Cara RR, Fleming GJ, Palin WM, Walmsley AD, Burke FJ. Cuspal deflection and microleakage in premolar teeth restored with resin-based composites with and without an intermediary flowable layer. J Dent. 2007 Jun;35(6):482-9.
17. Gonzalez Lopez S, Sanz Chinesta MV, Ceballos Garcia L, de Haro Gasquet F, Gonzalez Rodriguez MP. Influence of cavity type and size of composite restorations on cuspal flexure. Med Oral Patol Oral Cir Bucal. 2006 Nov-Dec;11(6):E536-40.
18. Moorthy A, Hogg CH, Dowling AH, Grufferty BF, Benetti AR, Fleming GJ. Cuspal deflection and microleakage in premolar teeth restored with bulk-fill flowable resin-based composite base materials. J Dent. 2012 Jun;40(6):500-5.
19. Abbas G, Fleming GJ, Harrington E, Shortall AC, Burke FJ. Cuspal movement and microleakage in premolar teeth restored with a packable composite cured in bulk or in increments. J Dent. 2003 Aug;31(6):437-44.
20. Bicalho AA, Pereira RD, Zanatta RF, Franco SD, Tantbirojn D, Versluis A, et al. Incremental filling technique and composite material--part I: cuspal deformation, bond strength, and physical properties. Oper Dent. 2014 Mar-Apr;39(2):E71-82.
21. McCullock AJ, Smith BG. In vitro studies of cusp reinforcement with adhesive restorative material. Br Dent J. 1986 Dec 20;161(12):450-2.
22. Rees JS, Jagger DC, Williams DR, Brown G, Duguid W. A reappraisal of the incremental packing technique for light cured composite resins. J Oral Rehabil. 2004 Jan;31(1):81-4.
23. Segura A, Donly KJ. In vitro posterior composite polymerization recovery following hygroscopic expansion. J Oral Rehabil. 1993 Sep;20(5):495-9.
24. Versluis A, Douglas WH, Cross M, Sakaguchi RL. Does an incremental filling technique reduce polymerization shrinkage stresses? J Dent Res. 1996 Mar;75(3):871-8.
25. Karaman E, Ozgunaltay G. Cuspal deflection in premolar teeth restored using current composite resins with and without resin-modified glass ionomer liner. Oper Dent. 2013 May-Jun;38(3):282-9.
26. Alomari QD, Reinhardt JW, Boyer DB. Effect of liners on cusp deflection and gap formation in composite restorations. Oper Dent. 2001 Jul-Aug;26(4):406-11.
27. Jantarat J, Panitvisai P, Palamara JE, Messer HH. Comparison of methods for measuring cuspal deformation in teeth. J Dent. 2001 Jan;29(1):75-82.
28. Meredith N, Setchell DJ. In vitro measurement of cuspal strain and


displacement in composite restored teeth. J Dent. 1997 May-Jul;25(3-4):331-7.
29. Alomari QD, Mansour YF. Effect of LED curing modes on cusp deflection and hardness of composite restorations. Oper Dent. 2005 Nov-Dec;30(6):684-9.
30. Suliman AA, Boyer DB, Lakes RS. Cusp movement in premolars resulting from composite polymerization shrinkage. Dent Mater. 1993 Jan;9(1):6-10.
31. Burgess J, Cakir D. Comparative properties of low-shrinkage composite resins. Compend Contin Educ Dent. 2010 May;31 Spec No 2:10-5.
32. Estafan D, Agosta C. Eliminating microleakage from the composite resin system. Gen Dent. 2003 Nov-Dec;51(6):506-9.
Published
2020-06-24
How to Cite
1.
Yarmohammadi E, Kasraei S, Sadeghi Y. Comparative Assessment of Cuspal Deflection in Premolars Restored with Bulk-Fill and Conventional Composite Resins. Front Dent. 16(6):407-414.
Section
Original Article