Modeling using regression analysis of linear sizes of molars depending on the cephalometric indices of practically healthy men of the Northern and Southern regions of Ukraine

  • O.O. Kotsyura National Pirogov Memorial Medical University, Vinnytsya, Ukraine
Keywords: regression models, molars, linear dimensions, computed-tomography,cephalometry, practically healthy men, Northern and Southern regions of Ukraine.

Abstract

For more precise odontometry, taking into account the individual craniotypologicalfeatures of the patient, mathematical modeling should be used, which will significantlyimprove the quality of the medical diagnostic and treatment process in orthodontics. Thepurpose of the study is to construct and analyze a regression model of computed-tomographic size of molars, depending on the features of cephalometric indices ofpractically healthy men of the Northern and Southern regions of Ukraine. Computed-tomographic study of molars with the following odontometry and cephalometry of 32practically healthy men of the Northern region of Ukraine - residents from Zhytomyr, Kyiv,Chernihiv and Sumy regions and 33 men of the Southern region of Ukraine - residentsfrom Odessa, Nikolaev, Kherson, Zaporizhzhya regions and Crimea. The construction ofregression models of individual linear sizes of molars, depending on the cephalometricindices, was performed using the statistical software package "Statistica 6.1". As a resultof our research, we have constructed reliable models of linear computed-tomographicsizes of molars of the upper and lower jaws in practically healthy men of the North [3models of mesio-distal dimensions (R2 = 0.576-0.685), to which most often include thelength of the body of the mandible on the right (16.7%), the smallest width of the head,the depth of the nose and the craniotype (by 11.1%); 2 models of vestibular-tonguedimensions (R2 = 0.657 and 0.767), which most often include the transverse arc andthe smallest width of the head (15.4%); 2 models of crown height (R2 = 0.519 and0.557)] and Southern [4 models of mesio-distal dimensions (R2 = 0.508-0.798), whichmost often include the largest head length, average facial width, height of the upperface, physiological face length, width of the lower jaw, nose depth and external eyewidth (8.3%); 6 models of vestibular-tongue dimensions (R2 = 0.504-0.756), whichmost often include external eye width (13.2%), physiological facial length, intercostalwidth and mouth width (10.5%), maximum head width, length and height of the nose (by7.9%), transverse arc, height of the upper face and distance between the nasion andinter-incisive point (by 5.3%); 2 models of crown height (R2 = 0.527 and 0.748), whichmost often include inter-orbital width and mouth width (14.3%)] regions of Ukraine.Thus, in practically healthy men from the Northern and Southern administrative-territorialregions of Ukraine, based on the characteristics of cephalometric indicators, craniotypeand face type, reliable regression models (with determination coefficient R2 greater than0.5) of individual linear computed-tomography sizes of molars of the upper and lowerjaws (out of 40 possible 7 for Northern and 12 for Southern regions of Ukraine).

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References

[1] Alekseev, V. P., & Debets, G. F. (1964). Craniometry: anthropological research methodology. М.: Science.
[2] Almond, J. R., Leroux, B. G., Knight, D. J., & Ramsay, D. S. (1999). Craniofacial morphology and tooth wear: A longitudinal study of orthodontic patients. Angle orthod., 69(1), 7-13. DOI: 10.1043/0003-3219(1999)069<0007:C>2.3.CO;2.
[3] Bedoya, A., Osorio, J. C., & Tamayo, J. A., (2015). Dental Arch Size. Biting Force. Bizygomatic Width and Face Height in Three Colombian Ethnic Groups. International Journal of Morphology, 33(1), 55-61. http://dx.doi.org/10.4067/S0717-95022015000100009.
[4] Bland, J. M., & Altman, D. G. (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet, 1, 307-310. PMID: 2868172.
[5] El-Zanaty, H. M., El-Beialy, A. R., Abou El-Ezz, A. M., Attia, K. H., El-Bialy, A. R., & Mostafa, Y. A. (2010). Three-dimensional dental measurements: an alternative to plaster models. Am. J. Orthod. Dentofacial. Orthop., 137, 259-265. DOI: 10.1016/j.ajodo.2008.04.030.
[6] Gayvoronskiy, I. V., Gayvoronskiy, A. I., Gayvoronskaya, M. G., Dubovik, E. I., Kevorkova, S. A., Koltunov, A. V., & Schanikova, A. S. (2008). Craniometric correlations of the dentoalveolar system. temporomandibular joint and facial skull in an adult. Morphology, 133(2), 29.
[7] Glushak, A. A. (2015). Vestibular-or al size of teeth in boys and girls with orthognathic bite depending on the shape of head and type of face. Reports of Vinnytsia National Medical University, 19(1), 37-43.
[8] Glushak, A. A., Gunas, I. V., Lisnichuk, N. E., & Samoylenko, A. V. (2015). Vertical dimensions of teeth in adolescents from Podolia with orthognathic bite depending on the shape of head and face type. Problems of Biology and Medicine, 2(83), 28-37.
[9] Lomiashvili, L. M., & Pogodaev, D. V. (2004). Variability of the forms of molars of the dentoalveolar apparatus of man. Institute of Stomatology, 4, 74-77.
[10] Lutskaya, I. K. (2003). Aesthetic function of the tooth. Scientific and practical journal. Modern dentistry, 1, 30-37.
[11] Lyakh, Yu. Е., Gurjanov, V. G., Homenko, V. N., & Panchenko, О. А. (2006). Fundamentals of computer biostatistics. Analysis of information in biology. medicine and pharmacy by statistical package MedStat. D.: Papakica Е. К. ISBN 966-96255-2-1.
[12] Nada, R. M., Maal, T. J., Breuning, K. H., Berge, S. J., Mostafa, Y. A., KuijpersJagtman, A. M. (2011). Accuracy and reproducibility of voxel based superimposition of cone beam computed tomography models on the anterior cranial base and the zygomatic arches. PloS One 2011; 6:e16520. DOI: 10.1371/journal.pone.0016520.
[13] Orlovskiy, V. О., Shinkaruk-Dykovytska, М. М., & Gunas, I. V. (2018). Modeling using regression analysis of individual linear dimensions of premolars depending on cephalometric indicators of practically healthy men from different regions of Ukraine. Bulletin of scientific research, 1, 90-95. DOI 10.11603/2415-8798.2018.1.8737.
[14] Pachêco-Pereira, C., Canto, G. D. L., Major, P. W., & Flores-Mir, C. (2014). Variation of orthodontic treatment decision-making based on dental model type: A systematic review. The Angle Orthodontist, 85(3), 501-509. https://doi.org/10.2319/051214-343.1.
[15] Piao, Y., Kim, S. J., Yu, H. S., Cha, J. Y., Baik, H. S. (2016). Five-year investigation of a large orthodontic patient population at a dental hospital in South Korea. The Korean Journal of Orthodontics, 46(3), 137-145. DOI: 10.4041/kjod.2016.46.3.137.
[16] Plokhinsky, N. А. (1980). Biometric algorithms. М.: Publishing house МGU.
[17] Proffit, U. R. (translation from English; Ed. L. S. Persina) (2015). Modern orthodontics. М.: Medpress-inform. ISBN: 978-5-00030-236-1.
[18] Sandro, B., & Razionale, A. V. (2013). Creation of 3D multi-body orthodontic models by using independent imaging sensors. Sensors, 13(2), 2033-2050. DOI: 10.3390/s130202033.
[19] Shinkaruk-Dikovitska, М. М., & Orlovskiy, V. О. (2017). Differences linear dimensions small molar teeth and their roots in practically healthy men from Ukraine with different types faces. World of Medicine and Biology, 2(60), 124-126.
[20] Slavicek, G. (2011). Cephalometrie. Berlin : Steinbeis–Ed. ISBN 9783941417724.
[21] Slavicek, R. (2006). The Masticatory Organ. Function and Dysfunction. Vienna - Klosterneuburg : Gamma Med.-wiss. ISBN 3950126112 9783950126112.
[22] Samusev, R. P., Krayushkin, А. I., Dmitrienko, S. V, (Ed. М. R. Sapin) (2002). Basics of clinical morphology of teeth: a tutorial. М.: ООО «Publishing House «ONIX 21 vek»: ООО «World and Education». ISBN: 5-329-00426-8.
[23] Trezubov, V. N., Bulycheva, E. A., Chikunov, S. O., Trezubov, V. V., & Alpatyeva, U. V. (2015). The cephalometric study of the facial skeleton during the preparation to eliminating the occlusal surface deformations of dentition. Institute of Stomatology, 4, 102-104.
[24] Zilberman, O., Huggare, J. A., & Parikakis, K. A. (2003). Evaluation of the validity of tooth size and arch width measurements using conventional and three-dimensional virtual orthodontic models. Angle Orthod., 73(3), 301-306.
[25] Zubov, А. А. (1968). Odontology. Methodology of anthropological research. М.: Science.
Published
2018-03-29
How to Cite
Kotsyura, O. (2018). Modeling using regression analysis of linear sizes of molars depending on the cephalometric indices of practically healthy men of the Northern and Southern regions of Ukraine. Biomedical and Biosocial Anthropology, (30), 68-74. https://doi.org/10.31393/bba30-2018-10