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Euro Dentistry 2019 & Dental Science 2019
July 15-16, 2019
Page 13
27
th
EURO DENTISTRY CONGRESS
DENTAL SCIENCE AND DENTAL PRACTICE
July 15-16, 2019 | London, UK
27
th
Global Summit Expo on
&
Volume 3
Dentistry Case Report
Dentistry Case Report, Volume 3
Use of CAD/CAM milling technique and attitudes towards 3D printing technique for
dental restorations among Finnish dentist
S
tatement of the Problem: Dental caries remains as one of the main
health problems globally. Direct filling technique with composite has
several shortcomings. Especially large fillings in lower posterior teeth
are challenging. Accuracy of the additive CAD/CAM (computer-aided
design and computer-aided manufacturing) technique called 3D printing
makes it suitable for manufacturing of several dental applications, like
surgical guides, aligners as well as dental and facial implants. The Rayo
3D Tooth Fill is a novel technique developed by Finnish professors and
experts for dental restorations by digital imaging and 3D printing on a
single visit to a clinic. Based on an in vitro study carried out in University
of Eastern Finland, Kuopio, Finland, the accuracy of 3D printing technique overcomes that of milling technique
in the fabrication of dental inlay and onlay fillings. Other major advantages compared to current solutions include
lower cost, possibility to layering and tailoring properties, suitability for existing filling materials and material
use efficiency. Additional clinical investigations are planned to carry out during 2019 to confirm the findings.
Methodology & Theoretical Orientation: A questionnaire was sent to 3,777 Finnish dentists in 2018 to study the
use of chairside dental CAD/CAM milling technology and to evaluate the attitudes towards 3D printing-based
applications for fabrication of dental restorations among Finnish dentists. Findings: More than a third of the
respondents reported using dental chairside CAD/CAM milling technique, most of them on a weekly basis. The
respondents with former experience of chairside CAD/CAM technique reported that they would consider using 3D
printing for filling manufacture if a better survival rate could be achieved, even though the price of the filling would
be higher than traditional direct filling. Conclusion & Significance: The results indicate that 3D printing-based
applications for fabrication of dental restorations attract interest among Finnish dentists.
Biography
Pirkko Liisa Tarvonen has a specialist degree in Dental Public Health from the University of Turku, Finland, and a PhD degree from the
University of Eastern Finland. She acts as Dental Marketing Director at Rayo 3D-Toothfill Ltd and as University Lecturer at the University of
Helsinki and at the University of Eastern Finland. As a voluntary project coordinator for ten years she has had a remarkable contribution in
the support of primary dental care and dental education in the Democratic People’s Republic Korea.
pirkko-liisa.tarvonen@rayo3d.fiPirkko-Liisa Tarvonen
University of Eastern Finland, Finland
Fig. Dental filling fabricated by digital scanning and 3D printing