Al-mawlawi Zaid Shaker Ирак College of Dentistry, Al-Ayen University, Iraq

Budi Hendrik Setia Индонезия Department of Oral Biology, Dental Pharmacology, Faculty of Dental Medicine, Universitas Airlangga, Indonesia

Sillanpaa Mika ЮАР Distinguished Visiting Professor: Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, South Africa