In situ evaluation of a new silorane-based composite resin's bioadhesion properties

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Diogo Claro-Pereira (Author) FMDUP; Benedita Sampaio-Maia (Author) FMDUP; Ferreira, C (Author) Other; Rodrigues, A (Author) Other; L. F. Melo (Author) FEUP; Vasconcelos M (Author) FMDUP

Journal

Title: Dental Materials

Vol. 27

Pages: 1238-1245

ISSN: 0109-5641

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 13 Citations

Scientific classification

CORDIS: Health sciences ; Technological sciences

FOS: Medical and Health sciences ; Engineering and technology

Other information

Authenticus ID: P-002-JE4

DOI: 10.1016/j.dental.2011.08.401

Abstract (EN): Objectives. The aim of the present study was to compare, in situ, the initial dental plaque formation on a recently developed silorane-based composite resin, Filtek Silorane, and on a widely used methacrylate-based composite resin, Synergy D6, and to relate possible differences to surface free energy, hydrophobicity and type of organic matrix. Methods. Discs of Filtek Silorane and Synergy D6 were prepared and polished equally in order to attain the same surface roughness. Water, formamide and 1-bromonaphthalene contact angles were determined and the surface free energy and the hydrophobicity of the materials calculated. Two discs of each material were mounted in individual oral splints and exposed to the oral cavity of 20 participants for 4 h. After this period the microbial adhesion to both materials' surface was measured by two different approaches, the DAPI staining and the plate count. Statistical analysis was performed using non-parametric tests. Results. The surface roughness (R(a) parameter) was similar between the two materials and lower than 0.2 mu m. Mean water and formamide contact angles were significantly higher for Filtek Silorane, which presented significantly lower surface free energy and greater degree of hydrophobicity in comparison to Synergy D6. The bioadhesion potential evaluated by either DAPI staining or plate count did not differ between the two materials. Significance. In contrast to previous in vitro studies, the present in situ study found no statistically significant differences with respect to bacterial adhesion between Filtek Silorane and Synergy D6, despite the differences found for surface free energy and hydrophobicity.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8