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Influence of the physical and chemical characteristics of two surfaces implant abutments, zirconia and titanium, in adhesion of gingival epithelial cells OBA-9

Grant number: 13/04825-4
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): August 01, 2013
Effective date (End): March 31, 2014
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal Investigator:Francisco de Assis Mollo Júnior
Grantee:Maria Sílvia Maurício Rigolin
Host Institution: Faculdade de Odontologia (FOAr). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil


For the long term success of implants it is imperative that a direct contact between the implant and the bone is established along with the absence of inflammation. To avoid bacterial penetration which could damage both initial healing and the long-term behavior of the implants, there is the formation of an early epithelial barrier able to protect biologically the periimplantar structures. Some abutment characteristics have a crucial importance for an effective interface between the implant and soft tissue. In relation to the chemical characteristic, the titanium is still considered the gold standard and has maintained a dominant market position as a material for abutment and for implant. Nevertheless, the demand for esthetic restorations favored the introduction of ceramic abutments for implants such as zirconia. Besides the aesthetic advantage, zirconia has favorable mechanical properties and accumulated lower amount of biofilm compared to titanium. The behavior of microorganisms and mucogingival epithelial tissue in relation to different surfaces of implant abutments is still unknown. Therefore, due to the need for an effective tissue barrier around osseointegrated implants, this study aims to evaluate in vitro the influence of the physical and chemical characteristics of two abutment surfaces of the implants, titanium and zirconia, on the adhesion of gingival epithelial cells. (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)
RIGOLIN, MARIA SILVIA M.; DE AVILA, ERICA DORIGATTI; BASSO, FERNANDA G.; HEBLING, JOSIMERI; COSTA, CARLOS ALBERTO DE S.; MOLLO JUNIOR, FRANCISCO DE ASSIS. Effect of different implant abutment surfaces on OBA-09 epithelial cell adhesion. MICROSCOPY RESEARCH AND TECHNIQUE, v. 80, n. 12, p. 1304-1309, . (13/04825-4, 11/05106-6)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
RIGOLIN, Maria Sílvia Maurício. Influência de características físicas e química dos materiais de abutments de implantes em zircônia e titânio na adesão e viabilidade de células epiteliais gengivaiS OBA-9. 2014. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araraquara Araraquara.

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