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Influence of non-thermal atmospheric pressure plasma on resin-dentin interface

Grant number: 15/05939-9
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): November 01, 2015
Effective date (End): October 31, 2016
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal researcher:Marcelo Giannini
Grantee:Ana Paula Almeida Ayres
Supervisor abroad: Bartholomeus Van Meerbeek
Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil
Research place: University of Leuven (KU Leuven), Belgium  
Associated to the scholarship:13/15952-7 - Effect of argon plasma on the dentinal surface and the adhesion of restorative material, BP.DR


The aim of this study is to evaluate the effects of plasma application on resin-dentin interfaces using nanoindentation, fracture toughness and SEM ultramorphological analysis. Scotchbond Universal Adhesive (3M ESPE) will be evaluated for both total-etch and self-etch approach. Experimental dentin specimens will be uniformly treated with non-thermal plasma brush for 10 or 30 seconds before the adhesive application. The modulus of elasticity (Er) and nanoindentation hardness will be evaluated in 3 structures (adhesive layer, hybrid layer and underlying dentin) using a Nano indenter (Nano Instruments, Inc., Knoxville, TN). Chevron-notched beam fracture toughness (CNB) will be measured following a modified ISO 24370 standard. For SEM analysis, samples will be sectioned, embedded in epoxy resin and polished before observations.

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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, 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, NOV-DEC 2018. Web of Science Citations: 0.
ALMEIDA AYRES, ANA PAULA; PONGPRUEKSA, PONG; DE MUNCK, JAN; GRE, CRISTINA PARISE; NASCIMENTO, FABIO DUPART; GIANNINI, MARCELO; VAN MEERBEEK, BART. Mini-interfacial Fracture Toughness of a Multimode Adhesive Bonded to Plasma-treated Dentin. Journal of Adhesive Dentistry, v. 19, n. 5, p. 409-416, 2017. Web of Science Citations: 2.

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