Regression models of teleradiographic parameters according to the Jarabak method in young men and young women with orthognathic occlusion
Obtaining orthognathic occlusion in a patient as a result of treatment is a key goal of any orthodontist. However, the thorny path that both the patient and the doctor must go through involves painstaking work, which primarily begins with planning and choosing a method of orthodontic treatment, predicting and modeling its results. However, the latter is possible only if previously conducted research to determine the normative indicators for a population. The aim of the study was to construct and analyze regression models of teleradiographic parameters according to the Jarabak method in Ukrainian young men and young women with orthognathic occlusion. 49 young men and 76 young women with orthognathic occlusion underwent cephalometric analysis of lateral radiographs according to the modification of the method Jarabak J. R. – Roth-Jarabak, performed using the software OnyxCeph³™. All parameters according to the Jarabak method were divided into three groups: the first group included metric characteristics of the skull, which are used as baseline indicators; to the second group – dental-jaw in which the skeleton has already been formed and which surgical methods can change the length, width, angles and positions of the upper and lower jaws; to the third group – indicators that characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face. Construction of regression models of teleradiographic indicators by the Jarabak method was performed in the licensed package “Statistica 6.0” using step-by-step regression analysis. When modeling teleradiographic parameters according to the Jarabak method, which were included in the second group, depending on the indicators of the first group in young men with orthognathic occlusion, 8 out of 19 possible reliable regression models with a coefficient of determination greater than 0.5 (R2= from 0.589 to 0.950) were constructed. The constructed equations most often include the value of the angle N-S-Ar and the distances Ar-Go and N-S. In young women with orthognathic occlusion, 6 reliable regression models of the second group were constructed depending on the indicators of the first group (R2= from 0.609 to 0.971). The constructed equations most often include the value of the distances Ar-Go, S-Ar, N-S and the angle N-S-Ar. When modeling teleradiographic indicators included in the third group, depending on the indicators of the first and second groups in young men, 5 out of 8 possible reliable regression models with a coefficient of determination greater than 0.5 (R2= from 0.658 to 0.751) were constructed. The constructed equations most often include the values of the angles N-A-Pog, N-Go-Gn, S-N-B and A-N-B. In young women with orthognathic occlusion, 6 reliable regression models of the third group were constructed depending on the indicators of the first and second groups (R2= from 0.509 to 0.772). The constructed regression equations most often include the value of the angles N-A-Pog, A-N-B, S-Ar-Go, S-N-A and the ratio Go_Me:N-S. The obtained models will allow orthodontists to automatically calculate the required cephalometric parameters.
 Amatya, S., Shrestha, R.M., & Napit, S. (2021). Growth Pattern in Skeletal Class I Malocclusion: A Cephalometric Study. Orthodontic Journal of Nepal, 11(1), 49-54. doi: 10.3126/ojn.v11i1.39088
 Bratu, D.C., Bălan, R.A., Szuhanek, C.A., Pop, S.I., Bratu, E.A., & Popa, G. (2014). Craniofacial morphology in patients with Angle Class II division 2 malocclusion. Rom. J. Morphol. Embryol., 55(3), 909-913. PMID: 25329119
 Budipramana, M., Budhy, T.I., & Ardani, I. (2021). Gonial Angle Characteristics of Class III Malocclusion in Javanese Ethnic. Pesquisa Brasileira em Odontopediatria e Clínica Integrada, 21, e0153. doi: 10.1590/pboci.2021.051
 Bushan, M.H., Vasylenko, Z.S., & Hryhoreva, L.P. (1990). Справочник по ортодонти [Handbook of Orthodontics]. Кишенев: Картя Молдовеняскэ – Kishinev: Kartia Moldoveniaske.
 Cazzolla, A.P., Lo Muzio, L., Di Fede, O., Lacarbonara, V., Colaprico, A., Testa, N.F. ... Lacaita, M.G. (2018). Orthopedic‐orthodontic treatment of the patient with Turner’s syndrome: Review of the literature and case report. Special Care in Dentistry, 38(4), 239-248. doi: 10.1111/scd.12295
 Dmitriev, M.O. (2017). Зв’язки основних краніальних показників з характеристиками положення зубів верхньої і нижньої щелеп та профілем м’яких тканин обличчя в юнаків і дівчат [Relations of key cranial indicators with the characteristics of the teeth of the upper and lower jaws and profile face soft tissue in boys and girls]. Вісник морфології – Reports of Morphology, 23(1), 125-131.
 Dmitriev, M., Gunas, V., Polishchuk, S., Olkhova, I., & Kumar, A. (2020). Modeling of Central Incisors Position Indicators in boys and girls according to CC. Steiner method for Forensic Dental Identification. The Official Publication of Indian Academy of Forensic Medicine, 42(3), 155-160. doi: 10.5958/0974-0848.2020.00043.3
 Doroshenko, S.I., & Kulginsky, E.A. (2007). Основы телерентгенографии [Fundamentals of Teleradiography]. К.: Здоров’я – К.: Zdorovija.
 Fichera, G., Greco, M., & Leonardi, R. (2011). Effectiveness of the passive lingual arch for E space maintenance in subjects with anterior or posterior rotation of the mandible: a retrospective study. Medical Principles and Practice, 20(2), 165-170. doi: 10.1159/000319914
 Gunas, V.I., Kotsyura, O.O., Babych, L.V., Shevchuk, Y.G., & Cherkasova, O.V. (2020). Features correlations of the sizes of molars with cephalometric indicators of men of the western region of Ukraine. Reports of Morphology, 26(2), 51-61. doi: 10.31393/morphology-journal-2020-26(2)-08
 Jarabak, J.R., & Fizzell, J.A. (1972). Technique and treatment with light-wire edgewise appliances, ed. 2, St. Louis, The CV Mosby Company. ISBN 9780801624292
 Krooks, L., Pirttiniemi, P., Kanavakis, G., & Lähdesmäki, R. (2016). Prevalence of malocclusion traits and orthodontic treatment in a Finnish adult population. Acta Odontologica Scandinavica, 74(5), 362-367. doi: 10.3109/00016357.2016.1151547
 Lall, R., Kumari, S., Sahu, A., Kumar, V., Thakur, S., Rai, S., & Bharti, P. (2018). Facial Morphology and Malocclusion Is there any Relation? A Cephalometric Analysis in Hazaribag Population. Journal of Contemporary Orthodontics, 2(2), 64-69.
 Mangla, R., Singh, N., Dua, V., Padmanabhan, P., & Khanna, M. (2011). Evaluation of mandibular morphology in different facial types. Contemporary Clinical Dentistry, 2(3), 200-206. doi: 10.4103/0976-237X.86458
 Marchenko, А.V., Shinkaruk-Dykovytska, M.М., Pozur, T.P., Gunas, V.I., & Orlovskiy, V.O. (2020). Models of individual linear dimensions necessary for the construction of the correct form of dental arches in young men with a wide face, depending on the features of odontometric and cephalometric indicators. Wiadomosci Lekarskie (Warsaw, Poland: 1960), 73(6), 1103-1107. PMID: 32723934
 Nicoo, M., Fakhri, F., Nikou, F., & Parastesh, A. (2019). Correlation Between Cephalometric and Photographic Results of Determining the Lower Anterior Facial Height. Hormozgan Medical Journal, 23(1), e86932. doi: 10.5812/hmj.86932
 Phulari, B. (2013). An atlas on cephalometric landmarks. JP Medical Ltd. doi: 10.5005/jp/books/11877
 Singh, K., Agarwal, B., Siddharth, R., & Rao, J. (2020). A study to evaluate changes in maxillomandibular relationships in long term complete denture wearer following new prosthesis fabrication by using Jarabak ratio. Journal of Dental and Medical Sciences, 11(1), 59-63. doi: 10.9790/0853-1911015963
 Soboń, J.S., Cherkasova, O.V., Gunas, V.I., Babych, L.V., & Kotsyura, O.O. (2020). Correlations of linear sizes of molars with cephalometric indicators of practically healthy men of the southern region of Ukraine. Biomedical and Biosocial Anthropology, (38), 36-46. doi: 10.31393/bba38-2020-06
 Soyoye, O.A., Otuyemi, O.D., Kolawole, K.A., & Ayoola, O.O. (2018). Relationship between masseter muscle thickness and maxillofacial morphology in pre-orthodontic treatment patients. International Orthodontics, 16(4), 698-711. doi: 10.1016/j.ortho.2018.09.015
 Vakhovskyi, V.V. (2021). Correlations of teleradiographic parameters of teeth location determined by the methods of Bjork, Jarabak and Sassouni with the parameters of the upper and lower jaws in young men and young women with orthognathic occlusion. Вісник Вінницького національного медичного університету – Reports of Vinnytsia National Medical University, 25(2), 229-237. doi: 10.31393/reports-vnmedical-2021-25(2)-08
 Vakhovskyi, V.V., Shinkaruk-Dykovytska, М.М., Pogorila, A.V., Likhitskyi, O.O., & Gunas, I.V. (2020). Correlations of basal cranial structures characteristics determined by Bjork and Jarabak methods with teleradiographic parameters of the upper and lower jaws and tooth location in young men and young women with orthognathic occlusion. Biomedical and Biosocial Anthropology, 41, 52-59. doi: 10.31393/bba41-2020-09
 Zegan, G., Dascalu, C.G., Mavru, R.B., & Anistoroaei, D. (2015). Cephalometric features of class III malocclusion. The Medical-Surgical Journal, 119(4), 1153-1160. PMID: 26793863
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