Errors in Light-emitting Diodes Positioning when Curing Bulk Fill and Incremental Composites: Impact on Properties After Aging

Overview

Journal Restor Dent Endod

Date 2021 Dec 15

PMID 34909415

Citations 2

Authors

Abdulrahman A Balhaddad

Isadora M Garcia

Haifa Maktabi

Maria Salem Ibrahim

Qoot Alkhubaizi

Howard Strassler

Fabricio M Collares

Mary Anne S Melo

Affiliations

Soon will be listed here.

Abstract

Objectives: This study aimed to evaluate the effect of improper positioning single-peak and multi-peak lights on color change, microhardness of bottom and top, and surface topography of bulk fill and incremental composites after artificial aging for 1 year.

Materials And Methods: Bulk fill and incremental composites were cured using multi-peak and single-peak light-emitting diode (LED) following 4 clinical conditions: (1) optimal condition (no angulation or tip displacement), (2) tip-displacement (2 mm), (3) slight tip angulation (α = 20°) and (4) moderate tip angulation (α = 35°). After 1-year of water aging, the specimens were analyzed for color changes (ΔE), Vickers hardness, surface topography (Ra, Rt, and Rv), and scanning electron microscopy.

Results: For samples cured by single-peak LED, the improper positioning significantly increases the color change compared to the optimal position regardless of the type of composite ( < 0.001). For multi-peak LED, the type of resin composite and the curing condition displayed a significant effect on ΔE ( < 0.001). For both LEDs, the Vickers hardness and bottom/top ratio of Vickers hardness were affected by the type of composite and the curing condition ( < 0.01).

Conclusions: The bulk fill composite presented greater resistance to wear, higher color stability, and better microhardness than the incremental composite when subjected to improper curing. The multi-peak LED improves curing under improper conditions compared to single-peak LED. Prevention of errors when curing composites requires the attention of all personnel involved in the patient's care once the clinical relevance of the appropriate polymerization reflects on reliable long-term outcomes.

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References

Alshaafi M . Factors affecting polymerization of resin-based composites: A literature review. Saudi Dent J. 2017; 29(2):48-58. PMC: 5411902. DOI: 10.1016/j.sdentj.2017.01.002. View

Aggarwal N, Jain A, Gupta H, Abrol A, Singh C, Rapgay T . The comparative evaluation of depth of cure of bulk-fill composites - An study. J Conserv Dent. 2019; 22(4):371-375. PMC: 6873606. DOI: 10.4103/JCD.JCD_453_18. View

Alrahlah A, Silikas N, Watts D . Post-cure depth of cure of bulk fill dental resin-composites. Dent Mater. 2013; 30(2):149-54. DOI: 10.1016/j.dental.2013.10.011. View

Van Ende A, de Munck J, van Landuyt K, Poitevin A, Peumans M, Van Meerbeek B . Bulk-filling of high C-factor posterior cavities: effect on adhesion to cavity-bottom dentin. Dent Mater. 2012; 29(3):269-77. DOI: 10.1016/j.dental.2012.11.002. View

Bendary I, Garcia I, Collares F, Takimi A, Samuel S, Leitune V . Wollastonite as filler of an experimental dental adhesive. J Dent. 2020; 102:103472. DOI: 10.1016/j.jdent.2020.103472. View

Diamantopoulou S, Papazoglou E, Margaritis V, Lynch C, Kakaboura A . Change of optical properties of contemporary resin composites after one week and one month water ageing. J Dent. 2013; 41 Suppl 5:e62-9. DOI: 10.1016/j.jdent.2013.04.001. View

Mitwalli H, Alsahafi R, Balhaddad A, Weir M, Xu H, Melo M . Emerging Contact-Killing Antibacterial Strategies for Developing Anti-Biofilm Dental Polymeric Restorative Materials. Bioengineering (Basel). 2020; 7(3). PMC: 7552663. DOI: 10.3390/bioengineering7030083. View

Price R, Ferracane J, Hickel R, Sullivan B . The light-curing unit: An essential piece of dental equipment. Int Dent J. 2020; 70(6):407-417. PMC: 9379154. DOI: 10.1111/idj.12582. View

Derchi G, Vano M, Ceseracciu L, Diaspro A, Salerno M . Stiffness effect of using polywave or monowave LED units for photo-curing different bulk fill composites. Dent Mater J. 2018; 37(5):709-716. DOI: 10.4012/dmj.2017-278. View

10.

Price R, Ferracane J, Shortall A . Light-Curing Units: A Review of What We Need to Know. J Dent Res. 2015; 94(9):1179-86. DOI: 10.1177/0022034515594786. View

11.

de Oliveira D, de Menezes L, Gatti A, Correr Sobrinho L, Ferracane J, Sinhoreti M . Effect of Nanofiller Loading on Cure Efficiency and Potential Color Change of Model Composites. J Esthet Restor Dent. 2016; 28(3):171-7. DOI: 10.1111/jerd.12189. View

12.

Meireles S, Demarco F, da Silva Dos Santos I, Dumith S, Della Bona A . Validation and reliability of visual assessment with a shade guide for tooth-color classification. Oper Dent. 2008; 33(2):121-6. DOI: 10.2341/07-71. View

13.

Poggio C, Lombardini M, Gaviati S, Chiesa M . Evaluation of Vickers hardness and depth of cure of six composite resins photo-activated with different polymerization modes. J Conserv Dent. 2012; 15(3):237-41. PMC: 3410332. DOI: 10.4103/0972-0707.97946. View

14.

Maktabi H, Ibrahim M, Alkhubaizi Q, Weir M, Xu H, Strassler H . Underperforming light curing procedures trigger detrimental irradiance-dependent biofilm response on incrementally placed dental composites. J Dent. 2019; 88:103110. DOI: 10.1016/j.jdent.2019.04.003. View

15.

Eshmawi Y, Al-Zain A, Eckert G, Platt J . Variation in composite degree of conversion and microflexural strength for different curing lights and surface locations. J Am Dent Assoc. 2018; 149(10):893-902. DOI: 10.1016/j.adaj.2018.06.004. View

16.

Janda R, Roulet J, Latta M, Steffin G, Ruttermann S . Color stability of resin-based filling materials after aging when cured with plasma or halogen light. Eur J Oral Sci. 2005; 113(3):251-7. DOI: 10.1111/j.1600-0722.2005.00217.x. View

17.

Konerding K, Heyder M, Kranz S, Guellmar A, Voelpel A, Watts D . Study of energy transfer by different light curing units into a class III restoration as a function of tilt angle and distance, using a MARC Patient Simulator (PS). Dent Mater. 2016; 32(5):676-86. DOI: 10.1016/j.dental.2016.02.007. View

18.

Menees T, Lin C, Kojic D, Burgess J, Lawson N . Depth of cure of bulk fill composites with monowave and polywave curing lights. Am J Dent. 2016; 28(6):357-61. PMC: 4924346. View

19.

Sabatini C . Color Stability Behavior of Methacrylate-based Resin Composites Polymerized with Light-emitting Diodes and Quartz-Tungsten-Halogen. Oper Dent. 2014; 40(3):271-81. DOI: 10.2341/14-080-L. View

20.

Ciccone-Nogueira J, Borsatto M, de Souza-Zaron W, Ramos R, Palma-Dibb R . Microhardness of composite resins at different depths varying the post-irradiation time. J Appl Oral Sci. 2008; 15(4):305-9. PMC: 4327434. DOI: 10.1590/s1678-77572007000400012. View