Definition Regulatory Cephalometric Options by the Method of Tweed International Foundation for Ukrainian Boys and Girls

Гунас, И. В.; Dmitriev, М.О.; Prokopenko, S. V.; Shinkaruk-Dykovytska, М. М.; Yeroshenko, G. А.

doi:10.26724/2079-8334-2017-4-62-27-31

Cited by 9 publications

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References 15 publications

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“…It should be noted that according to our research, most of the cephalometric parameters obtained in Podillia young men and women with orthognathic bite didn't have significant differences with the data of the parameters obtained by G. Shmut [5], C. Stiner [8] and A.M. Schwartz [6]. Numerous differences in the cephalometric parameters used in Charles H. Tweed International Foundation analysis with the results obtained in Ukrainian young men and women with orthognathic bite have been set for angles (regardless of sex, the smaller angles of FMA and POr_OcP and larger IMRA angles values), so and for linear dimensions (larger PFH distances for young men and smaller AFH distances for young women and AFH_PFH ratios for young men and women) [15], as well as almost half of the cephalometric parameters obtained in young men and women from Podillia with orthognathic bite with marked differences in the magnitude of these parameters derived by J. McNamara [14].…”

Section: Discussionmentioning

confidence: 99%

Determination of standard cephalometric parameters using the Downs method for Ukrainian adolescents

Dmitriev

2018

Rep. of Morph.

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The difference in the characteristics of craniofacial structures in different races and ethnicities established in many studies requires the creation of a normative basis for teleroentgenographic indices and indices characteristic for a particular ethnic group. The purpose of the work is to set the cephalometric parameters by W. Downs for young men and women from Podillya region of Ukraine with orthognathic bite and compare the results with the data proposed by the author of the technique. With the device Veraviewepocs 3D device, Morita (Japan), 38 young men (17 to 21 years of age) and 55 young women (aged from 16 to 20 years) with orthognathic bite (normal occlusion close to orthognathic bite) received and analyzed lateral teleroentgenograms. Cephalometric points and measurements were performed in accordance with the recommendations of W. Downs (1948). Anatomical points were determined taking into account recommendations A.E. Athanasiou (1997), S.I. Doroshenko and Y.A. Kulginsky (2007). The statistical processing of the obtained results was carried out in the licensed package “Statistica 6.0” using nonparametric methods for evaluating the obtained results. As a result of the research, virtually no sex differences in cephalometric parameters by W. Downs between adolescents from Podillya with orthognathic bite were found. When comparing the cephalometric parameters obtained by W. Downs from similar figures obtained in Ukrainian young men and women with orthognathic bite, regardless of gender, established significantly lower values of Cant Occlusal Plane (angle POr-DOP) and angle II, as well as significantly higher values were established for angle 1l-DOP, angle 1l-MeGo and distance 1u-APog in Ukrainian young men and women of Podillya. The obtained results indicate the need to create a normative base for cephalometric standards by W. Downs for the population of different regions of Ukraine, taking into account gender and age belonging.

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Section: Discussionmentioning

confidence: 99%

Determination of standard cephalometric parameters using the Downs method for Ukrainian adolescents

Dmitriev

2018

Rep. of Morph.

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“…In recent years, research has been conducted in this direction and cephalometric parameters for Ukrainian adolescents have been determined and analyzed by the methods of Steiner C. C. [3], Schmuth G. [4], McNamara J. [14], Downs [5], Tweed [13]. According to the research of Chernysh A. V. et al, Dmitriev M. O. et al, not only cephalometric parameters in Ukrainian young men and young women were determined by the methods of Ricketts R. M., Harvold E. P. and Burstone C. J., but also differences in these indicators compared to the author's methods of cephalometric analysis [2,6,7].…”

Section: Introductionmentioning

confidence: 99%

Features of t teleroentgenographic parameters of the upper and lower jaws in Ukrainian young men and young women with orthognathic occlusion and with different types and profiles of the face according to Schwarz A. M.

Прокопенко

Беляєв

Gülmen

et al. 2020

Biomed. and Biosoc. Anthrop.

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Numerous studies have shown that teleroentgenographic indicators differ in people of different races, ethnicities, different populations, inhabitants of different geographical areas and often differ from the values of such indicators described by the authors of classical methods of cephalometric analysis. The aim of the study was to establish teleroentgenographic parameters that can be most often corrected during orthodontic and surgical interventions and to determine their features in Ukrainian young men and young women with orthognathic occlusion depending on profiles and facial types according to Schwarz A. M. The results of studies of lateral teleroentgenogram of the head of 49 young men aged 17 to 21 years and 76 young women aged 16 to 20 years with a physiological bite as close as possible to orthognathic using dental cone-beam tomography Veraviewepocs 3D Morita (Japan) are presented in this work. The morphometric teleroentgenographic parameters of the upper and lower jaws and inter-jaw parameters, which can most often change during surgical, orthodontic, cosmetic interventions in groups of persons with different profiles or types of faces according to Schwarz A. M., were determined. All significant differences between groups of young men with different facial profiles and between groups of young women with different facial profiles are of the same type: in both young men and young women with the first type of face profile – angle B is greater than in representatives with the third profile type, and angle MM is greater than in representatives with the third and second profile types; both in young men and young women with a second face type profile – distance R.asc. larger than the representatives with the first profile type; in both young men and young women with the third face profile type, the angle F is larger than in the representatives with the first profile type, the angle I is larger than in the representatives with the first and second profiles type, and the distances L-Mand and R.asc. larger than the representatives with the first profile type; the angle T have greater values in young men or young women with the first profile type of the face than with the second and third profiles type and have greater values in the representatives with the second profile type than with the first type profile of the face. Another picture is observed in the analysis of indicators in young men and young women with different face types. Thus, in persons with the third type of face the distance Max is greater than in persons with the first type and with the second type of face; the angle F in young men or young women with the third type of face is greater than in representatives with the second and first types, and in representatives with the second type – greater than in young men or young women with the first type of face. Young men with the first type of face have higher values of angles G, B and T than young men with the third type and angle B than young men with the second type of face; in young men with the second type of face – greater values of angle I than in young men with the first type and angle B than in young men with the third type of face; young men with the third type of face have larger values of angle I and distance R.asc. than young men with the first type of face. In young women, only tendencies to higher values of I and T angles were recorded in persons with the third type of face than with the first type. The obtained results indicate the need to divide young men and young women into separate groups according to the profile and type of person for an individualized approach to the definition and analysis of teleroentgenographic indicators in the population of Ukraine.

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“…This topic has gained a lot of attention in the last decade not only abroad but also in Ukraine. There are scientific works on determining the relationship between cephalometric indices and the size of certain teeth, work on identifying normative teleroentgenographic indices for the population of Ukraine, etc [8,12,20]. That is, this topic is extremely relevant at the moment.…”

Section: Introductionmentioning

confidence: 99%

Modeling by regression analysis of the transverse dimensions of the upper and lower jaws and sagittal characteristics of the dental arch in young women with a very wide face, depending on the features of the odonto- and cephalometric indicators

Pozur

2019

Biomed. and Biosoc. Anthrop.

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Providing maximum individual orthodontic care to the patient is impossible without the use of modern instrumental methods of research and considering odontometric and cephalometric characteristics of representatives of relevant populations of different sex and age. The purpose of the study is to develop and analyze regression models of computed tomography sizes necessary to construct the correct form of dental arches in young women with a very wide face, depending on the characteristics of odonto- and cephalometric indicators. Primary computed tomographic indices of tooth size and cephalometric parameters of 50 young women with normal occlusion close to orthognathic occlusion were obtained from the data bank of the scientific-research center of National Pirogov Memorial Medical University, Vinnytsya. Face type was determined using the Garson morphological index. The following distribution is established: with a very wide face – 21, with a wide face – 20, with a medium face – 6, with a narrow face – 3, with a very narrow face – 0. Therefore, only young women with a wide and very wide face were selected for further modeling. The development of regression models of linear dimensions necessary for the construction of the correct form of dental arches, depending on the features of odonto- and cephalometric indicators in young women with very wide faces, was carried out in a licensed statistical package “Statistica 6.0”. It is established that young women with a very wide type of face with normal occlusion have built all 18 possible reliable models (with a coefficient of determination from 0.863 to 0.962) of linear computed tomography sizes used to construct the correct form of dental arches of the upper and lower jaws in depending on the features of odontometric and cephalometric indicators. Built models in young women with a very wide face type included more often odontometric (73.0 %) than cephalometric (27.0 %) data. Among the odontometric indicators, the most frequently included models are: width of crowns of teeth in mesio-distal direction (20.7 %); width of the teeth at the level of the anatomical neck in the mesio-distal direction (14.4 %) and width of the crowns of the teeth in the vestibulo-oral direction (10.8 %); and among the cephalometric indicators – the greatest length of the head (3.6 %); average width of face and height of lower lip (2.7 % each). Thus, in young women with a very wide type of face with normal occlusion close to orthognathic occlusion, all 18 possible reliable regression models of reproduction of the individual characteristics of the dental arches of the upper and lower jaws depending on the odonto- and cephalometric parameters were developed and analyzed.

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Definition Regulatory Cephalometric Options by the Method of Tweed International Foundation for Ukrainian Boys and Girls

Cited by 9 publications

References 15 publications

Determination of standard cephalometric parameters using the Downs method for Ukrainian adolescents

Determination of standard cephalometric parameters using the Downs method for Ukrainian adolescents

Features of t teleroentgenographic parameters of the upper and lower jaws in Ukrainian young men and young women with orthognathic occlusion and with different types and profiles of the face according to Schwarz A. M.

Modeling by regression analysis of the transverse dimensions of the upper and lower jaws and sagittal characteristics of the dental arch in young women with a very wide face, depending on the features of the odonto- and cephalometric indicators

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