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2019, vol. 35, iss. 80, pp. 1956-1969
Comparison of surface roughness of dental materials as an adhesion factor of oral biofilm
aUniveristy of Niš, Faculty of Medicine, Clinic of Stomatology + Univeristy of Niš, Faculty of Medicine
bUniverzitet u Nišu, Medicinski fakultet, Institut za javno zdravlje, Niš
cUniveristy of Niš, Faculty of Mechanical Engineering
dUniveristy of Niš, Faculty of Medicine
eUniveristy of Niš, Faculty of Medicine, Clinic of Stomatology

emailmilena.kostic@medfak.ni.ac.rs
Abstract
Introduction: In order for a material to be considered biologically acceptable, it is necessary to have such a surface design that it reacts as little as possible with tissue and environmental agents. No processing method can produce a molecularly flat surface of dental materials. The aim: of the study was to examine the roughness of various dental materials, using a mechanical profilometer. Material and methods: The test included different materials such as composite, hot polymerized acrylate, cold polymerized acrylates used in prosthetics and orthodontics, zirconium oxide ceramics and glass-ceramics. Samples of the research materials were made according to the manufacturer's instructions. The measurement of the roughness of the obtained samples was performed using a Mitutoyo SJ-301 Suftest device, dragging the reader across the samples, in two directions (vertical and horizontal), thus obtaining two measurement values for each material individually. Results: By measuring the roughness of the material, it was found that there were significant differences between the samples tested. The highest roughness was measured for cold polymerized acrylates used in prosthetics, while the lowest roughness was measured for composite materials. Conclusion: The roughness was significantly higher for cold polymerized acrylates than the other tested materials and should, wherever possible, be replaced by hot polymerized acrylates. In order to reduce the roughness of dental materials, the principles of their preparation and in particular the surface treatment (polishing and glazing process) should be followed.
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article language: English, Serbian
document type: Original Paper
DOI: 10.5937/asn1980956S
published in SCIndeks: 18/02/2020
Creative Commons License 4.0

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