Olszewska Katarzyna, Mielnik-Błaszczak Maria, Plechawska Paula, Przybyś Joanna. Overweight and obesity affect skeletal maturation and dental development in children and adolescents – a retrospective study. Journal of Education, Health and Sport. 2018;8(6):139-152. eISNN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1254151 http://ojs.ukw.edu.pl/index.php/johs/article/view/5524 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part b item 1223 (26/01/2017). 1223 Journal of Education, Health and Sport eissn 2391-8306 7 © The Authors 2018; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 02.05.2018. Revised: 18.05.2018. Accepted: 28.05.2018. Overweight and obesity affect skeletal maturation and dental development in children and adolescents – a retrospective study Katarzyna Olszewska1 olszewskakm@interia.pl Maria Mielnik-Błaszczak1 mielnikmb@gmail.com Paula Plechawska2 paula.plechawska@gmail.com Joanna Przybyś2 jmprzybys@gmail.com 1 Chair and Department of Pediatric Dentistry, Medical University in Lublin 2 Masovian Center of Dentistry in Warsaw Introduction: There are many questions concerning the relationship between childhood obesity and childhood growth and development. The aim of the study was to determine if overweight and obese children and adolescents show accelerated dentition development and skeletal maturity in comparison with the normal weight individuals. Material and Methods: In total, 109 patients divided into three groups were selected for the retrospective study. The OW group included 34 overweight patients (mean age: 10.91 ± 2.43). The OB group comprised 23 obese individuals (mean age: 10,67 ± 2.54). The control group (NW) included 52 normal weight subjects (mean age: 10.19 ± 1.81). Dental age and skeletal maturity were assessed. The data was analyzed by STATISTICA 10 for Windows Software (StatSoft Inc., Tulsa, USA). Results: The mean dental age acceleration was 0.38 ± 1.13 in the NW group, 1,79 ± 0.96 in the OW group and 1.88 ± 0.75 in the OB group and was significantly greater in the OW and OB group than in the NW group (P<0.05). The mean CVM score accounted for 2.01 ± 1.16 in the NW group, 2.95 ± 1.47 in the OW group and 2.97 ± 1.49 in the OB group. The mean CVM score was significantly greater in the OW and OB group than in the NW group (P<0.05). Conclusions: The study revealed accelerated dentition development and skeletal maturity in overweight and obese children and adolescents. BMI percentile is an important data that healthcare professionals should consider in the context of growth and development assessment in paediatric patients. Keywords: children, overweight, obesity, dentition development, skeletal maturity