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Effect of argon plasma on the dentinal surface and the adhesion of restorative material

Grant number: 13/15952-7
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): February 01, 2014
Effective date (End): February 28, 2017
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal Investigator:Marcelo Giannini
Grantee:Ana Paula Almeida Ayres
Host Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil
Associated scholarship(s):15/05939-9 - Influence of non-thermal atmospheric pressure plasma on resin-dentin interface, BE.EP.DR


The aim of this study will be to evaluate the effects of plasma on the dentin surface and the bond strength of an adhesive system. Two application times of the plasma will be analyzed: 10 and 30 seconds. The chemical composition of the dentin treated with plasma will be determined by Fourier Transform Raman Spectroscopy, while the surface morphology will be evaluated using the Optical Interferometer (n = 5). The plasma effect on the viability of microorganisms that contaminate the dentin will be analyzed in confocal laser microscopy and the influence of plasma on the enzymatic activity of metalloproteinases will be evaluated by zymography in situ method. Microtensile test will be used to evaluate the dentin bond strength and the specimens will be stored for 24 hours or 1 year (n = 8). The adhesive will be tested after two times of plasma treatment, with or without dentin acid etching. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
AYRES, ANA P.; BONVENT, JEAN J.; MOGILEVYCH, BORYS; SOARES, LUIS E. S.; MARTIN, AIRTON A.; AMBROSANO, GLAUCIA M.; NASCIMENTO, FABIO D.; VAN MEERBEEK, BART; GIANNINI, MARCELO. Effect of non-thermal atmospheric plasma on the dentin-surface topography and composition and on the bond strength of a universal adhesive. European Journal of Oral Sciences, v. 126, n. 1, p. 53-65, . (13/15952-7)
HIRATA, RONALDO; SAMPAIO, CAMILA; MACHADO, LUCAS S.; COELHO, PAULO G.; THOMPSON, VAN P.; DUARTE, SIMONE; ALMEIDA AYRES, ANA PAULA; GIANNINI, MARCELO. Short- and Long-term Evaluation of Dentin-Resin Interfaces Formed by Etch-and-Rinse Adhesives on Plasma-treated Dentin. Journal of Adhesive Dentistry, v. 18, n. 3, p. 215-222, . (13/15952-7)
AYRES, A. P.; FREITAS, P. H.; DE MUNCK, J.; VANANROYE, A.; CLASEN, C.; DOS SANTOS DIAS, C. T.; GIANNINI, M.; VAN MEERBEEK, B.. Benefits of Nonthermal Atmospheric Plasma Treatment on Dentin Adhesion. Operative Dentistry, v. 43, n. 6, p. E288-E299, . (13/15952-7, 15/05939-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
AYRES, Ana Paula Almeida. Efeito da aplicação de plasma atmosférico não térmico na superfície dentinária e na adesão do material restaurador. 2017. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Odontologia de Piracicaba Piracicaba, SP.

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