APPLICATION OF OPEN SOURCE SOFTWARE FOR CREATING THREEDIMENSIONAL DENTAL MODELS, MATHEMATICAL CALCULATING THE MASS PROPERTIES OF GOLD, ZIRCONIUM AND TITANIUM AND FINANCIAL IMPACT ON THE HEALTH CARE SYSTEM

Abstract Dentistry, associated with the construction of crowns, bridges and other structures, accompanies 
many people. It is often necessary to use quality materials that are compatible with living tissue and have the 
necessary biocompatibility. These are gold (Au), zirconium (Zr) and titanium (Ti), as well as the titanium 
alloy Ti6Al4V. They are the basis for acquiring a healthy dental restoration when a tooth or teeth are already 
missing, or the existing ones are compromised and non-functional. Restoration of the dentition is associated 
with certain financial burdens, which have specific costs of dentistry, materials, labor and more. This report 
covers the stage of creating the basic digital three-dimensional geometry of dental models through open 
source software. Methods for generating 3D geometry by scripting and specialized add-ons in the Blender 
software environment are presented. The mass properties of the applicable dental materials have been 
calculated mathematically, as well as the financial impact on budgeting has been calculated. The results of 
the study are directly applicable and cover a large segment of modern healthcare, such as dentistry. 
Keywords: Open source software; 3D; mass properties; financial impact; health care.

Acknowledgements
This paper (result) is supported by the Bulgarian Association of Ergonomics and Human Factors 
(BAEHF).
The author of the study expresses personal gratitude and appreciation to all developers of Open 
Source Software (OSS) such as Blender, Bforartists, FreeCAD, ODC and Dents 3D Human Teeth 
Add-ons, The World Material, SensorsOne, ARCH EnterPrices, and others through whom this 
study was completed.