Determination of microhardness of bulk-fill resins at different depths

The aim of this study was to determine Vickers microhardness (HV) in bulk fill resins at different depths. Test specimens were prepared with different bulk fill resins: Filtek Bulk-Fill (3M ESPE) [FBF], Surefill SDR flow (Dentsply) [SDR], Fill-UP (COLTENE) [FU] and Surefill (Dentsply) [SF]. Semi-cyl...

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Bibliographic Details
Published in:Acta odontológica latinoamericana 2022-04, Vol.35 (1), p.10-15
Main Authors: Garrofé, Analía B, Picca, Mariana, Kaplan, Andrea E
Format: Article
Language:English
Subjects:
Composite Resins
DENTISTRY, ORAL SURGERY & MEDICINE
Hardness
Materials Testing
Original
Polymerization
Surface Properties
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Summary:The aim of this study was to determine Vickers microhardness (HV) in bulk fill resins at different depths. Test specimens were prepared with different bulk fill resins: Filtek Bulk-Fill (3M ESPE) [FBF], Surefill SDR flow (Dentsply) [SDR], Fill-UP (COLTENE) [FU] and Surefill (Dentsply) [SF]. Semi-cylindrical test specimens were prepared in a mold 6 mm in diameter and 4 mm thick (n=5). A 1000 mW/cm2 light curing unit was applied (Coltolux LED - Coltene) for 20 seconds. HV was determined with three indentations (Vickers Future Tech FM300, 300 g, 8 s) at four depths: 1, 2, 3 and 4 mm from the top surface to the interior. Data were recorded immediately (t0) and 24 hours later (t24). Results were analyzed with two-way ANOVA (p
ISSN:0326-4815
1852-4834
1852-4834
DOI:10.54589/aol.35/1/10