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Grant number: 12/07212-0
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): November 01, 2012
Effective date (End): February 28, 2014
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal Investigator:Paulo Henrique dos Santos
Grantee:André Gustavo de Lima Godas
Host Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil


This study will evaluate the mechanical properties (elastic modulus and hardness) of the resin cements and underlying dentin after the bonding of customized fiberglass to different thirds the intra-root dentin as well as measure the push-out bond strength between customized fiberglass post to different thirds the intra-root dentin before and after mechanical cycling. Single root pre-molars will be subjected to endodontic treatments, and the samples will be divided into four groups (n=10) according to the type of intra-root retainer used (customized and non-customized fiberglass posts) and aging (with or without mechanical cycling, totaling 500.000 cycles). The roots will be sectioned in slices of approximately 1.3mm (cervical, middle and apical regions) and submitted to the measurements of hardness, elastic modulus and push-out bond strength test in different regions. After bond strength test specimens will be evaluate by scanning electron microscopy to characterize the dentin structure. Data of bond strength and mechanical proprieties will be subjected to normality and statistical tests to comparison of means values (± = 0.05).

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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)
DE LIMA GODAS, ANDRE GUSTAVO; UMEDA SUZUKI, THAIS YUMI; GOMES FILHO, JOAO EDUARDO; ASSUNCAO, WIRLEY GONCALVES; SUNDFELD, RENATO HERMAN; FRAGA BRISO, ANDRE LUIZ; DOS SANTOS, PAULO HENRIQUE. Do customized fiberglass posts influence the bond interface in different regions of intraradicular dentin?. JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, v. 35, n. 15, p. 1675-1686, . (12/09721-0, 12/07212-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
GODAS, André Gustavo de Lima. Anatomização de pinos de fibra de vidro: estudo de propriedades mecânicas na interface restauradora adesiva. 2014. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araçatuba Araçatuba.

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