Influence of Fluorescent Dye on Physical-Mechanical Properties of Luting Cements for Confocal Microscopy Analysis

Autor(es)

Oliveira, Dayane ^[1] ; Prieto, Lucia ^[1] ; Araujo, Cintia ^{[1, 2]} ; Coppini, Erick ^[1] ; Pereira, Gisele ^[3] ; Paulillo, Luis ^[1]

Afiliação do(s) autor(es)

^[1] State Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Restorat Dent, Sao Paulo - Brazil

^[2] Fed Univ Jequitinhonha & Mucuri Valley UFVJM, Fac Hlth Sci, Dept Dent, Diamantina - Brazil

^[3] Univ Fed Rio de Janeiro, Sch Dent, Rio De Janeiro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MICROSCOPY RESEARCH AND TECHNIQUE; v. 77, n. 12, p. 986-988, DEC 2014.
• Citações Web of Science: 0

Resumo

Aims: To evaluate the influence of a fluorescent dye (rhodamine B) on the physical and mechanical properties of three different luting cements: a conventional adhesive luting cement (RelyX ARC, 3M/ESPE), a self-adhesive luting cement (RelyX U-200, 3M/ESPE), and a self-etching and self-adhesive luting cement (SeT PP, SDI). Materials and Methods: The cements were mixed with 0.03 wt% rhodamine B, formed into bar-shaped specimens (n=10), and light cured using an LED curing unit (Radii, SDI) with a radiant exposure of 32 J/cm(2). The Knoop hardness (KHN), flexural strength (FS), and Young's modulus (YM) analyses were evaluated after storage for 24 h. Results: Outcomes were subjected to two-way ANOVA and Tukey's test (P=0.05) for multiple comparisons. No significant differences in FS or YM were observed among the tested groups (P0.05); the addition of rhodamine B increased the hardness of the luting cements tested. Conclusion: The addition of a fluorescent agent at 0.03 wt% concentration does not negatively affect the physical-mechanical properties of the luting cement polymerization behavior. Microsc. Res. Tech. 77:986-988, 2014. (c) 2014 Wiley Periodicals, Inc. (AU)

• Processo FAPESP: 11/12180-8 - Influência do envelhecimento termomecânico nas propriedades físicas de materiais resinosos
• Beneficiário: Luis Alexandre Maffei Sartini Paulillo
• Modalidade de apoio: Auxílio à Pesquisa - Regular