Background. Dental caries is a widespread worldwide disease of multifactorial genesis. The leading mechanism of its development is a long-term imbalance of the physiological balance between the inorganic component of the teeth hard tissues and the liquid biofilm formed on their surface, the predominance of the demineralization processes in hard tissues over the processes of remineralization. The use of dental enamel sealants has proven to be effective in preventing and reducing the intensity of dental caries. Modern bioactive polymer sealants for enamel contain such remineralizing agents as sodium fluoride, nanoamorphous calcium phosphate, beta-tricalcium phosphate, and particles of bioactive glass. For all dental composite filling materials, mechanical stability is one of the prerequisites for the long-term clinical success of restorations and fillings, and accordingly, temporary protective structures made of sealants.
Aim: to compare the flexural strength and modulus of elasticity of three modern photocomposite enamel sealants.
Materials and methods. In laboratory conditions for three modern photocomposite dental materials for sealing fissures and pits of enamel "Fissurit FX" (VOCO), "Clinpro™ Sealant" (3M™ ESPE™) and "Jen-Fissufil" (Jendental-Ukraine LLC) a flexural strength (three-point test) and elastic modulus were determined in accordance with the requirements of the international standard ISO 4049:2019. 6 samples of each material, polymerized and kept for a day in humid conditions, were examined.
Results. The highest elastic modulus and flexural strength were in "Fissurit FX" – 5.17±0.80 GPa (M=5.00 GPa) and 130.07±7.75 MPa (M=127.81 MPa), respectively. In "Clinpro™ Sealant" the elastic modulus was 2.97±0.12 GPa (М=3.00 GPa), the flexural strength was 100.01±14.33 (М=96.73) MPa. In "Jen-Fissufil" the elastic modulus was 3.47±0.52 GPa (M=3.17 GPa), the flexural strength was 90.91±6.66 MPa (M=93.02 MPa). The studied indicators of all three materials exceeded the requirements of the international standard ISO 4049:2019.
Conclusion. The performed studies showed high mechanical properties of all three dental sealants for enamel and that they have the potential to withstand long-term periodic masticatory load when functioning on the surface of teeth.
Frencken JE, Sharma P, Stenhouse L, Green D, Laverty D, Dietrich T. Global epidemiology of dental caries and severe periodontitis – a comprehensive review. J. Clin. Periodontol. 2017;44:94–105. DOI: 10.1111/jcpe.12677.
Marcenes W, Kassebaum NJ, Bernabé E, Flaxman A, Naghavi M, Lopez A, Murray CJL Global burden of oral conditions in 1990–2010: A systematic analysis. J. Dent. Res. 2013;92:592–7. DOI: 10.1177/0022034513490168.
Arvin E, Bardow A, Spliid H. Caries affected by calcium and fluoride in drinking water and family income. J. Water Health. 2018;16:49–56. DOI: 10.2166/wh.2017.139.
Khalili Sadrabad Z, Safari E, Alavi M, Shadkar MM, Hosseini Naghavi SH. Effect of a fluoride-releasing fissure sealant and a conventional fissure sealant on inhibition of primary carious lesions with or without exposure to fluoride-containing toothpaste. J. Dent. Res. Dent. Clin. Dent. Prospect. 2019;13:147–52. DOI: 10.15171/joddd.2019.023.
Skulska SV. Hermetyzatsiia fisur yak metod pervynnoi profilaktyky fisurnoho kariiesu zubiv u ditei. Suchasna stomatolohiia. 2019; 1: 60–1. URL:http://nbuv.gov.ua/UJRN/ss_2019_1_15. [In Ukrainian]
Ahovuo-Saloranta A, Forss H, Walsh T, Nordblad A, Mäkelä M, Worthington HV. Pit and fissure sealants for preventing dental decay in permanent teeth. Cochrane Database Syst. Rev. 2017;7:CD001830. DOI: 10.1002/14651858.CD001830.pub5.
Al-Jobair A, Al-Hammad N, Alsadhan S, Salama F. Retention and caries-preventive effect of glass ionomer and resin-based sealants: An 18-month-randomized clinical trial. Dent. Mater. J. 2017;36:654–61. DOI: 10.4012/dmj.2016-225.
Swetha DL, Vinay C, Uloopi KS, RojaRamya KS, Chandrasekhar R. Antibacterial and Mechanical Properties of Pit and Fissure Sealants Containing Zinc Oxide and Calcium Fluoride Nanoparticles. Contemp Clin Dent. 2019;10(3):477–82. DOI: 10.4103/ccd.ccd_805_18.
Yan WJ, Zheng JJ, Chen XX. Application of fluoride releasing flowable resin in pit and fissure sealant of children with early enamel caries. J. Peking Univ. Health Sci. 2018;50:911–4. PMID: 30337757 [In Chinese]
Kosior P, Dobrzyński M, Korczyński M, Herman K, Czajczyńska-Waszkiewicz A, Kowalczyk-Zając M, Piesiak-Pańczyszyn D, Fita K, Janeczek M. Long-term release of fluoride from fissure sealants – In vitro study. J. Trace Elem. Med. Biol. 2017;41:107–10. DOI: 10.1016/j.jtemb.2017.02.014.
Ibrahim MS, AlQarni FD, Al-Dulaijan YA, Weir MD, Oates TW, Xu HH, Melo MAS. Tuning nano-amorphous calcium phosphate content in novel rechargeable antibacterial dental sealant. Materials. 2018;11:1544. DOI: 10.3390/ma11091544.
Dejak B, Młotkowski A, Romanowicz M. Finite element analysis of stresses in molars during clenching and mastication. J. Prosthet. Dent. 2003;90:591–7. DOI: 10.1016/j.prosdent.2003.08.009.
Ferracane JL, Hopkin JK, Condon JR. Properties of heat-treated composites after aging in water. Dent Mater. 1995;11(6):354–8. DOI: 10.1016/0109-5641(95)80034-4.
Heintze SD, Ilie N, Hickel R, Reis A, Loguercio A, Rousson V. Laboratory mechanical parameters of composite resins and their relation to fractures and wear in clinical trials – A systematic review. Dental Materials. 2017; 33(3): e101–4. DOI: 10.1016/j.dental.2016.11.013
ISO 4049:2019. Dentistry – Polymer-based restorative materials. International Organization for Standardization; Geneva, Switzerland. 2019. 29 p.
Ibrahim MS, Alabbas MS, Alsomaly KU, AlMansour AA, Aljouie AA, Alzahrani MM, Asseri AA, AlHumaid J. Flexural Strength, Elastic Modulus and Remineralizing Abilities of Bioactive Resin-Based Dental Sealants. Polymers (Basel). 2021;14(1):61. DOI: 10.3390/polym14010061.
Tüzüner T, Dimkov A, Nicholson JW. The effect of antimicrobial additives on the properties of dental glass-ionomer cements: A review. Acta Biomater. Odontol. Scand. 2019;5:9–21. DOI: 10.1080/23337931.2018.1539623.
Alamri A, Salloot Z, Alshaia A, Ibrahim MS. The Effect of Bioactive Glass-Enhanced Orthodontic Bonding Resins on Prevention of Demineralization: A Systematic Review. Molecules. 2020;25:2495. DOI: 10.3390/molecules25112495.
AlShahrani SS, AlAbbas MAS, Garcia IM, AlGhannam MI, AlRuwaili MA, Collares FM, Ibrahim MS. The antibacterial effects of resin-based dental sealants: A systematic review of in vitro studies. Materials. 2021;14:413. DOI: 10.3390/ma14020413.
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