Development and characterization of a novel bulk-fill elastomeric temporary restorative composite
J. appl. oral sci
;
27: e20180183, 2019. tab, graf
Article
in English
| LILACS, BBO
| ID: biblio-975880
ABSTRACT
Abstract Objectives:
This study investigated the physical and mechanical properties, antibacterial effect and biocompatibility of novel elastomeric temporary resin-based filling materials (TFMs) containing zinc methacrylate (ZM). Material andMethods:
Experimental TFMs were prepared by mixing the zinc methacrylate with monomer, co-monomer, photoinitiator and fillers. A ZM concentration of 0 (control), 0.5% (Z0.5); 1% (Z1), 2% (Z2), or 5% (ZM5) wt% was added to the TFMs. Fermit-N (F) was used for comparison with the experimental material. Microleakage, water sorption/solubility, degree of conversion, depth of cure, ultimate tensile strength, and hardness were determined and compared. A modified direct contact test (DCT) with Enterococcus faecalis and a Streptococcus mutans' biofilm accumulation assay was carried out to evaluate the antimicrobial effect and cytotoxicity of the assay. Statistical comparisons were performed (α=5%).Results:
The results showed that the physical and mechanical properties of the experimental TFMs with ZM are comparable with the properties of the commercial reference and some properties were improved, such as lower microleakage and water sorption, and higher ultimate tensile strength values. TFMs with ZM killed E. faecalis only after 1 h. Biofilm development of S. mutans was not affected by the inclusion of ZM in the experimental TFMs.Conclusions:
The present findings suggest that the physical, mechanical and biological properties of the experimental TFMs with ZM are comparable with the properties of the commercial reference. However, some properties were improved, such as lower microleakage and water sorption, and higher ultimate tensile strength values.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Zinc
/
Composite Resins
/
Elastomers
/
Dental Restoration, Temporary
/
Methacrylates
Type of study:
Evaluation studies
Limits:
Animals
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2019
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Faculdade Metropolitana da Grande Fortaleza/BR
/
Universidade Federal de Pelotas/BR
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