Influence of expiration date on detail reproduction of dental elastomers
DOI:
https://doi.org/10.33448/rsd-v10i11.18837Keywords:
Elastomers; Dental Impression Materials; Date of validity of products.Abstract
Elastomers are synthetic rubber materials formed by polymers, which are joined by a small number of cross-links that form a three-dimensional network. The aim of the current study was to compare the surface detail reproduction of polyvinyl siloxane and polyether-based elastomeric impression materials (2 years after their expiration date) to the ones that have not exceeded this period-of-time. Four groups comprising 5 samples, each (n = 5), were divided based on material (polyvinyl siloxane – Express and polyether – Impregum Soft) and expiration date (expired, or not). The manipulated material was placed on a tray in a way to fully cover its inner part. Later on, it was placed on a metal matrix presenting 20-, 50- and 75-μm lines. Molds were removed after polymerization and surface detail reproduction was measured in comparator microscope (Stereozoom Microscope), along the 20 μm line (25 mm in length), at 4x-magnification, in compliance with ISO 4823. Surface detail reproduction values were subjected to descriptive analysis - results were expressed in percentage (%). All groups presented 100% of surface detail reproduction, regardless of impression material or expiration date. Surface detail reproduction of the investigated materials was not influenced by the evaluated elastomers’ expiration date.
References
Abdelaziz, K. M., Attia, A., & Combe, E. C. (2004). Evaluation of disinfected casts poured in gypsum with gum Arabic and calcium hydroxide additives. The Journal of Prosthetic Dentistry, 92(1), 27-34.
Aivatzidou, K., Kamalakidis, S. N., Emmanouil, I., Michalakis, K., & Pissiotis, A. L. (2021). Comparative Study of Dimensional Stability and Detail Reproduction of Reformulated and Nonreformulated Elastomeric Impression Materials. Journal of Prosthodontics, 30(4), 345-350.
Amin, W. M., Al-Ali, M. H., Al Tarawneh, S. K., Taha, S. T., Saleh, M. W., & Ereifij, N. (2009). The effects of disinfectants on dimensional accuracy and surface quality of impression materials and gypsum casts. Journal of Clinical Medicine Research, 1(2), 81-89.
Chong, Y. H., Soh, G., Setchell, D. J., & Wickens, J. L. (1990). The relationship between contact angles of die stone on elastomeric impression materials and voids in stone casts. Dental Materials, 6(3), 162-166.
Carvalhal, C. I., Mello, J. A., Sobrinho, L. C., Correr, A. B., & Sinhoreti, M. A. (2011) Dimensional change of elastomeric materials after immersion in disinfectant solutions for different times. The Journal of Contemporary Dental Practice, 12(4), 252-258.
Craig, R. G. (1988). Review of dental impression materials. Advances in Dental Research, 2(1), 51-64.
German, M. J., Carrick, T. E., & McCabe, J. F. (2008). Surface detail reproduction of elastomeric impression materials related to rheological properties. Dental Materials, 24(7), 951-956.
Gonçalves, F. S., Popoff, D. A. V., Castro, C. D. L., Silva, G. C., Magalhães, C. S., & Moreira, A. N. (2011). Dimensional stability of elastomeric impression materials: a critical review of the literature. European Journal of Prosthodontics and Restorative Dentistry, 19(4), 163-166.
Guiraldo, R. D., Berger, S. B., Siqueira, R. M., Grandi, V. H., Lopes, M. B., Gonini-Júnior, A., Caixeta, R. V., de Carvalho, R. V., & Sinhoreti, M. A. (2017). Surface detail reproduction and dimensional accuracy of molds: influence of disinfectant solutions and elastomeric impression materials. Acta Odontologica Latinoamericana, 30(1), 13-18.
Guiraldo, R. D., Berger, S. B., Punhagui, M. F., Moretto, T. S., Lopes, M. B., Gonini-Júnior, A., & Sinhoreti, M. A. C. (2018). Influence of chloramine-T disinfection on elastomeric impression stability. European Journal of Dentistry, 12(02), 232-236.
Guiraldo, R. D., Berger, S. B., Paloco, E. A. C., dos Reis Freitas, A., Lopes, M. B., de Carvalho, R. R., Seixas, G. F., & Sinhoreti, M. A. C. (2020). Influence of expiration date on the dimensional accuracy of elastomers. Research, Society and Development, 9(10), e489108147.
Haralur, S. B., Saad Toman, M., Ali Al-Shahrani, A., & Ali Al-Qarni, A. (2016). Accuracy of multiple pour cast from various elastomer impression methods. International Journal of Dentistry, 2016:7414737.
Johnson, G. H., Mancl, L. A., Schwedhelm, E. R., Verhoef, D. R., & Lepe, X. (2010). Clinical trial investigating success rates for polyether and vinyl polysiloxane impressions made with full-arch and dual-arch plastic trays. The Journal of Prosthetic Dentistry, 103(1), 13-22.
Kamegawa, M., Nakamura, M., Fukui, Y., Tsutsumi, S., & Hojo, M. (2010). Direct 3-D morphological measurements of silicone rubber impression using micro-focus X-ray CT. Dental Materials Journal, 29(1), 68-74.
Khatri, M., Mantri, S. S., Deogade, S. C., Bhasin, A., Mantri, S., Khatri, N., Jain, P., & Chauhan, D. (2020). Effect of chemical disinfection on surface detail reproduction and dimensional stability of a new vinyl polyether silicone elastomeric impression material. Contemporary Clinical Dentistry, 11(1), 10-14.
Melilli, D., Rallo, A., Cassaro, A., & Pizzo, G. (2008) The effect of immersion disinfection procedures on dimensional stability of two elastomeric impression materials. Journal of Oral Science, 50(4), 441‑446.
Menees, T. S., Radhakrishnan, R., Ramp, L. C., Burgess, J. O., & Lawson, N. C. (2015). Contact angle of unset elastomeric impression materials. The Journal of Prosthetic Dentistry, 114(4), 536-542.
Pandey, P., Mantri, S., Bhasin, A., & Deogade, S. C. (2019). Mechanical properties of a new vinyl polyether silicone in comparison to vinyl polysiloxane and polyether elastomeric impression materials. Contemporary Clinical Dentistry, 10(2), 203-207.
Petrie, C. S., Walker, M. P., O'mahony, A. M., & Spencer, P. (2003). Dimensional accuracy and surface detail reproduction of two hydrophilic vinyl polysiloxane impression materials tested under dry, moist, and wet conditions. The Journal of Prosthetic Dentistry, 90(4), 365-372.
Soganci, G., Cinar, D., Caglar, A., & Yagiz, A. (2018). 3D evaluation of the effect of disinfectants on dimensional accuracy and stability of two elastomeric impression materials. Dental Materials Journal, 37(4), 675-684.
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Copyright (c) 2021 Ricardo Danil Guiraldo; Eric Yudi Harada; Sandrine Bittencourt Berger; Flaviana Alves Dias; Danielle Gregorio; Lucia Gloria Diana Aguilar Pizzurno; Nayra Kawana Turini; Murilo Baena Lopes
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