Compressive strength and fractographic analysis of tooth crown models made of a short glass fibre-reinforced composite material
1
Lublin University of Technology
2
Private Practice of Dentistry “Perfekt Dent” Ułanów St. 1, 20-554 Lublin
3
Graduate of Lublin University of Technology, Nadbystrzycka St.36, 20-618 Lublin
4
Medical University of Lublin, Faculty of Medicine and Dentistry, Department of Conservative Dentistry with Endodontics, Chodźki St. 6 20-093 Lublin
These authors had equal contribution to this work
KEYWORDS
TOPICS
ABSTRACT
The objective of this study was to evaluate the compressive strength of a glass fibre reinforced (GFR) composite material used in restorative conservative dentistry. The following dental composites were used in the work: EverX Posterior (GC Europe) GFR composite and Filtek Z250 (3M ESPE) conventional composite for fabricating phantoms which imitated molar crowns. Compression tests were performed and an analysis is provided here for the fractures formed during the application of compressive forces. It was found that the short fibres, rather than the polymer matrix itself, were responsible for the load transfer. The voids visible after removal of the fibres and the cracks in the polymer matrix are indicative of a force required to cause a GFR composite failure that is higher than the force required to cause a conventional composite filling failure. The phantoms made of the GFR composite showed greater strength than polymer-filled phantoms, devoid of short glass fibres.
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
