The Effects of Polymerization in Different Light Power Modes on the Radiopacity of Composite Resins

Year 2022, Volume: 8 Issue: 4, 570 - 581, 30.11.2022

Çiğdem Güler , Zerrin Ünal Erzurumlu , Didem Odabaşı , Ebru Uslu Cender , Kerem Erzurumlu

https://doi.org/10.19127/mbsjohs.1134902

Abstract

Objective: The aim of this study is to evaluate the effect of polymerization in different light power modes on the radiopacity of six different composite resins (Filtek Z250, Xtrafil, Tetric N Ceram, SureFil SDR Flow, Nova Compo HF, Grandio Flow).
Methods: Plexiglass molds (8 mm diameter, 2 mm thickness) were used for the preparation of the samples. Totally ten samples were formed for each composite resin (standard mode; n=5 and extra power mode; n=5). A 2-mm-thickness buccolingual section was obtained from the extracted premolar tooth for enamel and dentin samples. To evaluate the relationship between the density of the samples and tooth structure, an Al step wedge was used as a reference. The mean gray values of each composite resin, enamel, dentin, and Al step wedge were calculated with an image analysis program. Data were analyzed with an independent sample t-test, one-way ANOVA, and Tukey HSD test.
Results: All tested composites met ISO standards. Even if the radiopacity values of tested composites changed according to the light power mode, this change was found to be statistically significant only in SureFil SDR Flow (p=0.037). The difference between the radiopacity values of tested composites in both standard power and extra power mode was statistically significant (p<0.01). The highest radiopacity values were produced by the bulk-fill composites in both standard and extra power modes.
Conclusion: In this study, all tested composites were found to have sufficient radiopacity for restorations according to the criteria set by the ISO.

Keywords

Radiopacity, Bulk fill composite resin, Flowable composite resin

References

• 1- Park J, Chang J, Ferracane J, Lee IB. How should composite be layered to reduce shrinkage stress: Incremental or bulk filling? Dent Mater. 2008;24(11):1501-1505.
• 2- Abbas G, Fleming GJP, Harrington E, Shortall ACC, Burke FJT. Cuspal movement and microleakage in premolar teeth restored with a packable composite cured in bulk or in increments. J Dent. 2003;31(6):437-444.
• 3- Imperiano MT, Khoury HJ, Pontual MLA, Montes MAJR, da Silveira MMF. The comparative radiopacity of four low viscosity composites. Braz J Oral Sci. 2007;6(20):1278-1282.
• 4- Attar N, Tam LE, McComb D. Flow, strength, stiffness and radiopacity of flowable resin composites. J Can Dent Assoc. 2003;69(8):516-521.
• 5- Jandt KD, Al-Jasser AM, Al-Ateeq K, Vowles RW, Allen GC. Mechanical properties and radiopacity of experimental glass-silica-metal hybrid composites. Dent Mater. 2002;18(6):429-435.
• 6- Czasch P, Ilie N. In vitro comparison of mechanical properties and degree of cure of bulk fill composites. Clin Oral Investig. 2013;17(1):227-235.
• 7- Nascimento AS, Lima DB, Fook MVL, Albuquerque MS, Lima EA, Sabino MA, et al. Physicomechanical characterization and biological evaluation of bulk-fill composite resin. Braz Oral Res. 2018;32:e107.
• 8- El-Damanhoury H, Platt J. Polymerization shrinkage stress kinetics and related properties of bulk-fill resin composites. Oper Dent. 2014;39(4):374-382.
• 9- Leprince JG, Palin WM, Vanacker J, Sabbagh J, Devaux J, Leloup G. Physico-mechanical characteristics of commercially available bulk-fill composites. J Dent. 2014;42(8):993-1000.
• 10- Türkoglu O, Bulut AC. Polymerization Light-Curing Units from Past to Present. J Dent Fac Atatürk Uni. 2019;29(4):683-690.
• 11- Halvorson RH, Erickson RL, Davidson CL. Energy-dependent polymerization of resin-based composite. Dent Mater J. 2002;18(6):463-469.
• 12- Price RB, Felix CA, Andreou P. Effects of resin composite composition and irradiation distance on the performance of curing lights. Biomaterials. 2004;25(18):4465-4477.
• 13- Ishikiriama SK, Valeretto TM, Franco EB, Mondelli RF. The influence of "C-factor" and light activation technique on polymerization contraction forces of resin composite. J Appl Oral Sci. 2012;20(6):603-606.
• 14- Darmani H, Al-Hiyasat AS. The effects of BIS-GMA and TEG-DMA on female mouse fertility. Dent Mater. 2006;22(4):353-358.
• 15- Schweikl H, Schmalz G. Triethylene glycol dimethacrylate induces large deletions in the hprt gene of V79 cells. Mutat Res. 1999;438(1):71-78.
• 16- Visalli G, Baluce B, La Maestra S, Micale RT, Cingano L, De Flora S, et al. Genotoxic damage in the oral mucosal cells of subjects carrying restorative dental fillings. Arch Toxicol. 2013;87(12):2247-2248.
• 17- Tadin A, Galic N, Mladinic M, Marovic D, Kovacic I, Zeljezic D. Genotoxicity in gingival cells of patients undergoing tooth restoration with two different dental composite materials. Clin Oral Investig. 2014;18(1):87-96.
• 18- Knezevic A, Zeljezic D, Kopjar N, Tarle Z. Cytotoxicity of composite materials polymerized with LED curing units. Oper Dent. 2008;33(1):23-30.
• 19- Chang HH, Chang MC, Lin LD, Lee JJ, Wang TM, Huang CH, et al. The mechanisms of cytotoxicity of urethane dimethacrylate to Chinese hamster ovary cells. Biomaterials. 2010;31(27):6917-6925.
• 20- Chan DCN, Titus HW, Chung KH, Dixon H, Wellinghoff ST, Rawls HR. Radiopacity of tantalum oxide nanoparticle filled resins. Dent Mater. 1999;15(3):219-222.
• 21- Ergücü Z, Türkün L, Onem E, Güneri P. Comparative radiopacity of six flowable resin composites. Oper Dent. 2010;35(4):436-440.
• 22- International Standard 4049 (2009). Dentistry-polymer based filings, restorative and luting materials, 4th edn Switzerland, Geneva. 2009.
• 23- Nomoto R, Mishima A, Kobayashi K, McCabe JF, Darvell BW, Watts DC, Momoi Y, Hirano S. Quantitative determination of radio‑opacity: Equivalence of digital and film X‑ray systems. Dent Mater. 2008;24(1):141‑147.
• 24- Cook WD. An investigation of the radiopacity of composite restorative materials. Aust Dent J. 1981;26(2):105‑112.
• 25- Gu S, Rasimick BJ, Deutsch AS, Musikant BL. Radiopacity of dental materials using a digital X-ray system. Dent Mater. 2006;22(8):765-770.
• 26- Lachowski KM, Botta SB, Lascala CA, Matos AB, Sobral MAP. Study of the radio-opacity of base and liner dental materials using a digital radiography system. Dentomaxillofac Radiol. 2013;42(2):20120153.
• 27- Yildirim T, Ayar MK, Akdag MS, Yesilyurt C. Radiopacity of bulk fill flowable resin composite materials. Niger J Clin Pract. 2017;20(2):200-204.
• 28- Gul P, Çaglayan F, Akgul N, Akgul HM. Comparison of radiopacity of different composite resins. J Conserv Dent. 2017;20(1):17-20.
• 29- Garoushi S, Vallittu P, Lassila L. Mechanical properties and radiopacity of flowable fiber-reinforced composite. Dent Mater J. 2019;38(2):196-202.
• 30- Dukić W, Delija B, Lešić S, Dubravica I, Derossi D. Radiopacity of Flowable Composite by a Digital Technique. Oper Dent. 2013;38(3):299-308.
• 31- Tarcin B, Gumru B, Peker S, Ovecoglu HS. Evaluation of Radiopacity of Bulk-fill Flowable Composites Using Digital Radiography. Oper Dent. 2016;41(4):424-431.
• 32- Temirek MMA. Effect Of Packing Technique and Curing Time On The Marginal Sealing And Surface Hardness Of Two Bulk-Fill Resin Composites. Egyptian Dent J. 2019;65(3):2587-2596.
• 33- Jang JH, Park SH, Hwang IN. Polymerization shrinkage and depth of cure of bulk-fill resin composites and highly filled flowable resin. Oper Dent. 2015;40(2):172-180.
• 34- Erzurumlu ZU, Sagirkaya CE, Erzurumlu K. Evaluation of radiopacities of CAD/CAM restorative materials and resin cements by digital radiography. Clin Oral Investig. 2021;25(10):5735-5741.
• 35- Furtos G, Baldea B, Silaghi-Dumitrescu L, Moldovan M, Prejmerean C, Nica L. Influence of inorganic filler content on the radiopacity of dental resin cement. Dent Mater J. 2012;31(2):266-272.
• 36- Hara AT, Serra MC, Rodrigues Júnior AL. Radiopacity of glass-ionomer/composite resin hybrid materials. Braz Dent J. 2001;12(2):85-89.
• 37- Watts DC. Radiopacity vs. composition of some barium and strontium glass composites. J Dent. 1987;15(1):38-43.
• 38- Pedrosa RF, Brasileiro IV, dos Anjos Pontual ML, dos Anjos Pontual A, da Silveira MM. Influence of materials radiopacity in the radiographic diagnosis of secondary caries: evaluation in film and two digital systems. Dentomaxillofac Radiol. 2011;40(6):344-350.
• 39- Prévost AP, Forest D, Tanguay R, DeGrandmont P. Radiopacity of glass ionomer dental materials. Oral Surg Oral Med Oral Pathol .1990;70(2):231-235.
• 40- Carvalho AA, Moreira Fdo C, Fonseca RB, Soares CJ, Franco EB, Souza JB, Lopes LG. Effect of light sources and curing mode techniques on sorption, solubility and biaxial flexural strength of a composite resin. J Appl Oral Sci. 2012;20(2):246-252.
• 41- Alvim HH, Alecio AC, Vasconcellos WA, Furlan M, de Oliveira JE, Saad JRC. Analysis of camphorquinone in composite resins as a function of shade. Dent Mater. 2007;23(10):1245-1249.
• 42- Moszner N, Fischer UK, Ganster B, Liska R, Rheinberger V. Benzoyl germanium derivatives as novel visible light photoinitiators for dental materials. Dent Mater. 2008;24(7):901-907.