Research Article Dental Age in Orthodontic Patients with Different Skeletal Patterns Tomislav Lauc, 1,2,3,4 Enita Nakaš, 3 Melina LatiT-DautoviT, 5 Vildana DDemidDiT, 3 Alisa Tiro, 3 Ivana RupiT, 4 Mirjana KostiT, 6 and Ivan GaliT 7 1 Study of Anthropology, Faculty of Social Sciences and Humanities, University of Zagreb, 10000 Zagreb, Croatia 2 Department of Dental Medicine, Faculty of Medicine, University of Osijek, 31000 Osijek, Croatia 3 Department of Orthodontics, School of Dental Medicine, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina 4 Dental Clinic Apolonija, 10000 Zagreb, Croatia 5 Dental Department, Te Public Institution Health Centre of Sarajevo Canton, 71000 Sarajevo, Bosnia and Herzegovina 6 University of Zagreb, School of Medicine, Croatian Health Insurance Fund, 10000 Zagreb, Croatia 7 School of Medicine, University of Split, 21000 Split, Croatia Correspondence should be addressed to Ivan Gali´ c; igalic@mefst.hr Received 18 October 2016; Accepted 21 February 2017; Published 16 March 2017 Academic Editor: Gasparini Giulio Copyright © 2017 Tomislav Lauc et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective. To evaluate the diference between chronological and dental age, calculated by Willems and Cameriere methods, in various skeletal patterns according to Steiner’s ANB Classifcation. Methods. Tis retrospective cross-sectional study comprised the sample of 776 participants aged between 7 and 15 years (368 males and 408 females). For each participant, panoramic images (OPT) and laterolateral cephalograms (LC) were collected from the medical database. On LC ANB angle was measured; on OPT dental age (DA) was calculated while chronological age (CA) and sex were recorded. Te sample was divided into three subgroups (Class I, Class II, and Class III) with similar distribution based on the chronological age and ANB angle. CA was calculated as the diference between the date of OPT imaging and the date of birth, while DA was evaluated using Willems and Cameriere methods. ANB angle was measured on LC by two independent investigators using the cephalometric sofware. Diferences between sexes and the diference between dental and chronological age were tested by independent and paired samples -test, respectively; one-way ANOVA was used to test diferences among ANB classes with Tukey post hoc test to compare specifc pairs of ANB classes. Results. Te signifcant diference was found between Class III and other two skeletal classes in males using both dental age estimation methods. In Class III males dental age was ahead averagely by 0.41 years when using Willems method, while Cameriere method overestimated CA for 0.22 years. Conclusion. In males with Class III skeletal pattern, dental development is faster than in Classes I and II skeletal pattern. Tis faster development is not present in females. 1. Introduction Dental development is a multilevel process, and it entails molecular and cellular interactions, which have macroscopic and clinical phenotypic outcomes. Te process of dental development is multidimensional, requiring developments in the three spatial dimensions with the fourth dimension of time. It is progressive, occurring over an extended period, yet at critical stages of development [1, 2]. In the same time of intensive changes, growth and development of diferent bones constituting the facial skeleton do not exhibit the same rate of growth [3]. As the teeth grow in the bone substratum, under the similar growth factors, it can be expected that the growth factors can have similar infuence onto dental and bone growth intensity in the same jaws. It is well known that the growth is an important aspect in dentofacial orthopedics, as treatment outcomes and stability may be infuenced by the maturational status of the patient [4]. Correlation and possible Infuence of facial pattern of the growth and dental development have been intensively studied earlier [5–9]. All previous studies investigated the correlation between vertical growth pattern and dental development. At Hindawi BioMed Research International Volume 2017, Article ID 8976284, 7 pages http://dx.doi.org/10.1155/2017/8976284