Effectiveness of polymerization of photopolymering devices used in clinical dental school of Recife
DOI:
https://doi.org/10.33448/rsd-v11i4.25574Keywords:
Polymarization; Composite Resins; Light.Abstract
This work aimed to evaluate the general state of different light curing devices used at the clinical school of dentistry at Uninassau/PE and their effectiveness in the polymerization of composite resins. For this, we evaluate the irradiance of 18 devices and their conditions of use considering the integrity and sanitization of the tips. For the analysis of effectiveness, a total of 15 specimens (Ꝋ 6 mm x 2 mm) were made with the composite resin Filtek Z250 (3M ESPE, St. Paul, MN, USA). The specimens were divided into 3 groups (n=5), two groups photoactivated with the devices used at the institution, the Biolux Plus (Bioart, São Carlos, Brazil) and the Optilight Max (Gnatus, Barretos, Brazil); and a control group using the Valo Grand Cordless device (Ultradent, Indaiatuba, Brazil), being submitted to the microhardness test after 24 hours. In microhardness, all specimens had higher means at the top, ~~ were higher in the control group and lower in the photoactivated group with Optilight Max, with a significant difference between the groups on each surface (p<0.001). The irradiance of most photo-activator devices evaluated (72.22%) was adequate for use, despite the noticeable need for maintenance, as 44.44% had resin material adhered to the tips and 38.89% with damaged tips. In general, the devices were suitable for use. The resins photoactivated by the different devices showed satisfactory microhardness in only one of the two light curing devices tested, highlighting the importance of periodic maintenance, as well as the need for clarification to students about their use.
References
Al-Zain, A. O., & Platt, J. A. (2021). Effect of light-curing distance and curing time on composite microflexural strength. Dental Materials Journal, 40(1), 202–208.
Alrahlah, A., Silikas, N., & Watts, D. C. (2014). Post-cure depth of cure of bulk fill dental resin-composites. Dental Materials, 30(2), 149–154.
Assaf, C., Fahd, J. C., & Sabbagh J. (2020). Assessing dental lught-curing units' output using radiometers: A narrative review. Journal of International Society of Preventive and Community Dentistry, 10, 1-8.
Beltrani, F. C., Caldarelli, P. G., & Kossatz, S. (2012). Avaliação da intensidade de luz e dos componentes dos aparelhos fotopolimerizadores da Clínica Odontológica da Universidade Estadual de Londrina. Revista Brasileira de Pesquisa Em Saúde/Brazilian Journal of Health Research, 5–11.
Beolchi, R. S., Moura-Netto, C., Palo, R. M., Torres, C. R. G., & Pelissier, B. (2015). Changes in irradiance and energy density in relation to different curing distances. Brazilian Oral Research, 29(1), 1–7.
Bezerra, A. L. C. A., Dias, T. J. C., Durão, M. de A., Monteiro, G. Q. de M., & Gomes, A. S. L. (2021). Avaliação do nível de conhecimento de acadêmicos de Odontologia sobre fotopolimerização. Revista da Abeno, 21(1), 1065.
Espíndola-Castro, L. F., Durão, M. de A., Pereira, T. V. G., Cordeiro, A. K. de B., & Monteiro, G. Q. de M. (2020). Evaluation of microhardness, sorption, solubility, and color stability of bulk fill resins: A comparative study. Journal of Clinical and Experimental Dentistry, 12(11), e1033–e1038.
Friedman, J. (1989). Variability of lamp characteristics in dental curing lights. Journal of Esthetic and Restorative Dentostry, 1(6), 189-90
Marson, F. C., Mattos, R., & Sensi, L. G.(2010). Avaliação das condições de uso dos fotopolimerizadores. Revista Dentística on line, 9 (19), 15–19.
Pereira, A. G., Raposo, L. H. A., Teixeira, D. N. R., Gonzaga, R. C. Q., Cardoso, I. O., Soares, C. J., & Soares, P. V. (2016). Influence of battery level of a cordless LED unit on the properties of a nanofilled composite resin. Operative Dentistry, 41(4), 409–416.
Price, R. B., Ferracane, J. L., & Shortall, A. C. (2015). Light-Curing Units. Journal of Dental Research, 94(9), 1179–1186.
Price, R. B. T. (2017). Light curing in dentistry. Dental clinical of North America, 61, 751–778.
Price, R. B., Ferracane, J. L., Hickel, R., & Sullivan, B. (2020). The light-curing unit: An essential piece of dental equipment. International Dental Journal, 70(6), 407–417.
Ribeiro, R. A. de O., Lima, F. F. de C., Lima, I. M., Nascimento, A. B. L. do, & Teixeira, H. M. (2016). Avaliação da intensidade de luz e da manutenção dos aparelhos fotopolimerizadores utilizados em clínicas odontológicas da cidade do Recife-PE. Revista de Odontologia Da UNESP, 45(6), 351–355.
Beolchi, R.S., Forti, W., Garófalo, J.C., & Palo, R.M. (2013). O seu fotopolimerizador está preparado para novos materias? Revista da Associação Paulista de Cirurgiões-Dentistas, 01(2), 186–196.
Rueggeberg, F. A., Giannini, M., Arrais, C. A. G., & Price, R. B. T. (2017). Light curing in dentistry and clinical implications : a literature review. Brazillian Oral Research, 31, 64–91.
Shimokawa, C. A., Halow, J. E., Turbino, M. L., & Price, R. B. (2016). Ability of four dental radiometers to measure the light output from nine curing lights. Journal of Dentistry, 54, 48-55.
Silva, F. J. V. da, Silva, E. L. da, Januário, M. V. S., Vasconcelos, M. G., & Vasconcelos, R. G.(2017). Técnicas para reduzir os efeitos da contração de polimerização das resinas compostas fotoativadas. Rev. Salusvita (Online), 36(1), 187–203.
Souza-Júnior, E. J., & Brandt, W. C. (2014). clínicas Fotoativação na Atualidade : Conceitos e Técnicas Clínicas. Clinica - International Journal of Brazilian Dentistry, 10(2), 24–30.
Suliman, A. A., Abdo. A. A., & Elmasmari H. A. (2020). Training and experience effect on light-curing efficiency by dental practitioners. Jounal of Dental Education, 84(6), 652–659.
Watts, D. C., Kaiser, C., O’Neill, C., & Price, R. B. (2019). Reporting of light irradiation conditions in 300 laboratory studies of resin-composites. Dental Materials, 35(3), 414–421.
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Copyright (c) 2022 Ana Luisa Cassiano Alves Bezerra; María Olimpia Paz Alvarenga; Márcia de Almeida Durão; Gabriela Queiroz de Melo Monteiro; Tereza Januária Costa Dias
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