Characterization of Mechanical Properties, Fluoride Release and Colour Stability of Dental Sealants | Zendy

Tais Munhoz | Zendy; UT Nunes | Zendy; LMA Seabra | Zendy; RV Monte-Alto | Zendy

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Characterization of Mechanical Properties, Fluoride Release and Colour Stability of Dental Sealants

Author(s) -

Tais Munhoz,

UT Nunes,

LMA Seabra,

RV Monte-Alto

Publication year - 2016

Publication title -

pesquisa brasileira em odontopediatria e clínica integrada

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.185

H-Index - 12

eISSN - 1983-4632

pISSN - 1519-0501

DOI - 10.4034/pboci.2016.161.16

Subject(s) - dentistry , characterization (materials science) , fluoride , materials science , chemistry , medicine , nanotechnology , inorganic chemistry

Objective: To compare the mechanical properties, fluoride release, colour stability and spreading characteristics of glass ionomer cement (GIC), compomer (CO), chemical (CR) and light-cured resin based (LR) fissure sealants. Material and Methods: Cylinders were prepared to determine mechanical properties by diametral tensile strength tests (stored for 24h in distilled water at 37°C) and fluoride release (24 hours, 3, 7 and 15 days; deionised water). Disk shaped specimens were prepared to determine colour stability (1 week in pigmenting solution; 37°C; CIE L*a*b*; ΔE). A simplified method of a spreading test was proposed to predict viscosity characteristics of the tested materials. Data were analysed using one-way ANOVA followed by T-test (p<0.05). Results: Results showed differences between materials regarding all tested properties. CO was statistically more resistant than the other materials (p<0.05), but no difference was observed between CR and LR. The fluoride release of GICs was significantly higher than the other materials (p<0.05). CO showed lower ΔE than the other materials in the following order: CO

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