Authors
Y. Kouzmanova
Department of conservative dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria
I. Dimitrova
Department of conservative dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria
© 2020 Y. Kouzmanova, I. Dimitrova, published by Sofia Medical University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.