Varna Medical University Press

Authors: Ilina Doykova, Valentina Yordanova

Authors: Teodora Dimitrova, Ruzha Pancheva, Darina Naydenova, Rositsa Chamova, Dimitar Marinov, Rozalina Braikova, Stanislava Hadzhieva, Ekaterina Valtcheva, Panayot Nikolov, Staniela Porozhanova, Albena Toneva, Eva Hristova

Authors: Svetlana Peneva Angelova, Minko Milchev Milev, Boris Yankov Borisov With the assistance of the students from 3rd year in the specialty “Dental technician”: Hristiana Vladimirova Dimitrova and Valentin Dilyanov Yankulovski