Practica Medicalå – Vol. 14, Nr. 2(66), An 2019 144 PRACTICA MEDICALĂ Articole originale Corresponding author: Univ. Assist. Viorel Perieanu, 13 Bd. C-tin Brancoveanu, Bl. B16, Sc. 5, Ap. 132, District 4, Bucharest, Romania E-mail: viorelperieanu@yahoo.com Theoretical and practical considerations in the therapy of morpho-functional disorders of the dento-maxillary system in preschool age – preliminary study Univ. Assist. Irina Adriana BEURAN 1 , MD, PhD, Prof. Augustin MIHAI 1 , MD, PhD, Univ. Assist. Viorel Stefan PERIEANU 1 , MD, PhD, Assoc. Prof. Ileana IONESCU 1 , MD, PhD, Univ. Assist. Oana EFTENE 1 , MD, PhD, Simion Gh. DUMITRU 2 , MD, PhD, Lecturer Claudia-Camelia BURCEA 1 , MD, PhD, Univ. Assist. Iuliana BABIUC 1 , MD, PhD, Lecturer Corina Marilena CRISTACHE 1 , MD, PhD, Assoc. Prof. Mihai BURLIBASA 1 , MD, PhD, Assoc. Prof. Liliana BURLIBASA 3 , PhD, Lecturer Cosmin MEDAR 1 , MD, PhD, Univ. Assist. Maria Glencora COSTACHE 1 , MD, PhD, Univ. Assist. Madalina Violeta PERIEANU 1 , MD, PhD, Lecturer Gabriela TANASE 1 , MD, PhD, Assoc. Prof. Oana-Cella ANDREI 1 , MD, PhD 1 „Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania 2 Dental Practice, Brasov, Romania 3 Faculty of Biology, University of Bucharest, Romania Abstract The development of the dento-maxillary system from the very beginning to the age of 12 implies a multitude of changes in the structure of this system. In the age of growth a sequence of deviations from the morphology and function of the dento-maxillary system appear. Purpose. In this paper, we have approached certain aspects of both theoretical and practical aspects that may intervene in the formation and development of dento-maxillary system in preschool age (up to 6 years). Material and methods. 75 dental practitioners from of different specialities from Bucharest were involved in this study between April 15 and May 20, 2018. To carry out a relevant survey a 6 items questionaire was used. Result and discussions. The results obtained were structured for a better understanding and to have a clear view for further study directions. Conlcusions. The dentist have the most important role in detecting disturbances that may have a negative effect on formation and development of dento-maxillary system and also is the one who guide prophylactic actions of preschool age children to avoid negative effect on dento-maxillary system. Keywords: morpho-functional disorders, preschool age, dentist, age of growths INTRODUCTION During the growth period of humans, a series of more or less severe deviations from the morphology and function of the dento-maxillary system may occur: they very accurately reflect the factors that alter, influence or condition the for- mation of the dento-maxillary system (1-8). The 4 main stages that interfere in the growth rate of an individual, are (1-8): Ref: Ro J Med Pract. 2019;14(2) DOI: 10.37897/RJMP.2019.2.10