• Vladan Mirjanić University of Banja Luka, Faculty of Medicine, Study Program Dentistry, Save Mrkalja 14, Banja Luka, Republic of Srpska
  • Đorđe Mirjanić Community Health Center, Zdrave Korde 4, Banja Luka, Republic of Srpska



Bearing in mind that in the field of jaw orthopedics and related scientific fields, there are no scientific studies that use the most modern technology based on the Atomic Force Microscopy (AFM) to investigate the nanostructure of tooth enamel after etching with 37% orthophosphoric acid, in this paper we will use this method, which is currently the most reliable, to determine the degree of tooth damage after its etching in the process of fixing orthodontic brackets. Considering the fact that the degree of enamel damage after etching cannot be realistically comprehended by the method called ’network’, because in this way the damage cannot be seen three dimensionally (the depth of the damage), but only the damage in a single plane, a more precise analysis can be obtained with the application of the most contemporary method that we can apply in this case, and that is the application of AFM technology.    


I. Paraschivoiu, Wind Turbine Design with Emphasis on Darrieus Concept, Polytechnic International Press, Canada 2002, 458.

V. Nelson, Wind Energy. Renewable Energy and the Environment, CRC Press Taylor and Francis Group, 2014, 340.

D. Koeva, D. Dimitrov, M. Peev, Deter-mining the power of the wind generator by assessing wind potential, Proceedings of the International Scientific and Technical Conference „Energetics 2006“, Varna, Bulgaria 2006, 226−229.

H. G. Lemu, R. Petrova, A. Mihailov, Study of a vertical axis wind turbine using fluid particle trajectory,7th International Conference on Mechanical and Electrical Technology (ICMET2015), Bali, Indonesia 2015, Applied Mechanics and Materials Journal, Vol. 789−790, 618−624.

R. Petrova, H. Lemu, Stress and Displa-cement analysis of a HAWT under Time-variable Wind, Proceedings of the ASME, 2014 International Mechanical Engineering Congress & Exposition, Vol. 6B: Energy, IMECE2014-37018, pp. V06BT07A066; 10 pages.

R. Petrova, H. Lemu, I. Larion, Study of Horizontal axis Wind Turbine Blade in Virtual Wind Tunnel Simulator, Proceedings of the ASME, 2013 International Mechanical Engineering Congress & Exposition, Vol. 4B: Dynamics, Vibration and Control, IMECE2013-64440, pp. V04BT04A050; 12 pages.

R. Petrova, Wind Turbines in Urban Areas – Advantages and Problems, Proceedings of the 13-th International Scientific Conference VSU’2013, Sofia, Vol. 3 (2013) 206−212.