scholarly journals 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

2021 ◽  
Vol 25 (2) ◽  
pp. 229-237
Author(s):  
V. V. Vakhovskyi

Annotation. Determining the characteristics of certain indicators within a certain population, the relationship between certain anatomical structures and parameters of the human body is one of the key tasks of clinical anthropology. Identifying the nature, strength and direction of the interdependencies of such indicators is a key element not only for understanding human nature but also for solving clinical, including dental problems today. The aim of the study was to establish in Ukrainian young men and young women with orthognathic occlusion the peculiarities of correlations of teleradiographic parameters of tooth location determined by Bjork, Jarabak and Sassouni methods with parameters of upper and lower jaws and tooth location. Teleradiography in the mode of cephalometric examination was performed for 49 young men and 76 young women with orthognathic occlusion. Cephalometric analysis was performed using OnyxCeph³™ software, 3DPro version, Image Instruments GmbH, Germany (software license URSQ-1799). Correlation assessment was performed in the license package “Statistica 6.0” using the non-parametric Spearman method. In young men and young women, the features of multiple correlations of teleradiographic parameters of the upper and lower jaws with the parameters of the location of the teeth determined by the methods of CFT-Bjork, Roth-Jarabak and Sassouni. As a result of quantitative analysis of significant correlations between teleradiographic parameters of the upper and lower jaws with the parameters of the location of the teeth found: CFT-Bjork in young men 46.9 %, of which 5.4 % straight strong, 18.5 % straight medium and 2.3 % straight weak and 2.3 % reversible strong, 16.2 % reversible medium strength and 2.3 % reverse weak, and young women – 38.5 %, of which, 2.3 % direct strong, 15.4 % direct medium strength and 6.2 % direct weak and 0.8 % reverse strong, 7.7 % reverse medium strength and 6.2 % of reversible weak; according to the Roth-Jarabak method, 36.2 % of young men, 6.6 % of direct strong, 11.8 % of direct medium strength and 2.6 % of direct weak and 2.6 % of reverse strong, 11.8 % of reverse of medium strength and 0.7 % of reverse weak, and young women – 44.7 %, of which, 3.9 % direct strong, 15.1 % direct medium strength and 7.2 % direct weak and 0.7 % reverse strong, 8.6 % reverse medium strength and 9.2 % reverse weak; according to the Sassouni method, 42.8 % of young men have all medium-strength, and 42.8 % of young women have, of which 35.7 % have medium-strength and 7.1 % have weak straight. Manifestations of sexual dimorphism of the received correlations are established only between the indicators defined by CFT-Bjork and Roth-Jarabak methods.

Author(s):  
V. V. Vakhovskyi ◽  
М. М. Shinkaruk-Dykovytska ◽  
A. V. Pogorila ◽  
O. O. Likhitskyi ◽  
I. V. Gunas

The widespread use of methods of cephalometric analysis in practical orthodontics requires the adaptation of normative indicators for members of the local ethnic group. It is also important to study the relationships between cranial and odontometric parameters to understand the effects of these components on each other. The aim of the study was to establish the peculiarities of correlations between the characteristics of basal cranial structures determined by Bjork and Jarabak methods with teleradiographic parameters of the upper and lower jaws and the location of teeth in Ukrainian young men and young women with orthognathic occlusion. Teleradiography was performed in the mode of cephalometric examination of 49 young men (aged 17 to 21 years) and 76 young women (aged 16 to 20 years) who had a physiological bite as close as possible to orthognathic. Cephalometric analysis according to modifications of Jarabak J. R. – Roth-Jarabak and Bjork A. – CFT-Bjork methods, performed using OnyxCeph³™ software, 3DPro version, Image Instruments GmbH, Germany (software license № URSQ-1799). All indicators were divided into three groups according to Dmitriev M. O. (2017): the first group included metric characteristics of the skull, which are used as basic indicators in the methods of cephalometric analysis; to the second group – dental-maxillary 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 actually characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face. Correlation assessment was performed in the license package "Statistica 6.0" using the non-parametric Spearman method. As a result of the conducted researches in Ukrainian young men and young women with orthognathic occlusion the peculiarities of multiple correlations of characteristics of basal cranial structures determined by CFT-Bjork and Roth-Jarabak methods with teleradiographic parameters of upper and lower jaws and tooth location were established. Both the CFT-Bjork method and the Roth-Jarabak method have more reliable correlations in both young men and young women between the first and second groups (23.3 % for young men and 50.0 % for young women for CFT-Bjork and 48.4 % for young men and 41.1% for young women according to Roth-Jarabak) than between the indicators of the first and third groups (respectively 12.8 % for young men and 7.7 % for young women for CFT-Bjork and 22.5 % for young men and 12.5 % for young women for Roth-Jarabak). The expressed manifestations of sexual dimorphism of the received correlations between the indicators defined by CFT-Bjork and Roth-Jarabak methods both on quantity and force, and in some cases on a direction of correlations are established.


2021 ◽  
Vol 25 (2) ◽  
pp. 238-246
Author(s):  
I. Yu. Drachevska

Annotation. Anomalies of the dental-jaw system are one of the most difficult challenges of modern orthodontics, and accordingly require the use of modern and evidence-based therapy. To predict the results of treatment and proper planning of orthodontic interventions, a reliable tool in the hands of an orthodontist is cephalometric analysis by the Ricketts method. An important step in the successful implementation of this method of analysis is to conduct a study taking into account ethnicity, age, sex and the influence of facial type on teleradiographic indicators calculated by this method. The aim of the study is to build and analyze regression models of teleradiographic indicators used in the Ricketts method for Ukrainian young men and young women with orthognathic occlusion with different face types. Ricketts teleradiography was performed for 49 young men and 76 young women with orthognathic occlusion. Cephalometric analysis was performed using OnyxCeph³™ software, 3DPro version, Image Instruments GmbH, Germany (software license URSQ-1799). The division into facial types was performed by determining the morphological index of Garson. All indicators were divided into three groups: the first group included the main cephalometric points and measurements used in modern cephalometric analyzes Schwartz, Ricketts, Steiner, Roth-Jarabak, Burstone and Bjork and are parameters that usually do not change during surgery and orthodontic treatment; to the second group – metric dental-jaw characteristics by the Ricketts method by which surgical methods can change the length, width, angles and position of the jaws; to the third group – indicators according to the Ricketts method which characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face. Regression models of individual teleradiographic indicators are built using the license package "Statistica 6.0". Only reliable models with a coefficient of determination higher than 0.6 were subject to analysis. Of the 13 possible facial features, 9 models of teleradiographic indicators (R² = from 0.691 to 0.834) were included to the second group, depending on the indicators of the first group, and 9 (R² = from 0.640 to 0.910) of the 15 possible models of indicators were included to the third group depending on the indicators of the first and second groups. In young men with a wide type of face, the constructed models of indicators included to the second group, depending on the indicators of the first group, most often include the distance Ar-Go (20.7 %), angle POr-NBa (13.8 %), distances N-S and S-E and the ratio N-S:S-Ar' (10.3 % each); and to the models of indicators included in the third group depending on the indicators of the first and second groups – the angle N-CF-A (12.8 %), the distance Ar-Go (10.3 %), the distances N-CC and A-NPog and angle ANS- Xi-Pm, POr-ANSPNS and DC-Xi-Pm (7.7 % each). In young women with a very wide type of face out of 13 possible built only 2 models of teleradiographic indicators (R² = 0.691 and 0.834) which were included to the second group depending on the indicators of the first group and 5 (R² = from 0.628 to 0.919) of 15 possible models of indicators which entered the third group depending on the indicators of the first and second groups. In young women with a very wide type of face, the constructed models of indicators included in the third group, depending on the indicators of the first and second groups, most often include the distance Xi-Pm (18.2 %), as well as the distance P-PTV and angles MeGo-NPog and POr-CFXi (9.1 % each). In young women with a wide type of face from 13 possible 5 models of teleradiographic indicators (R² = from 0.606 to 0.854) which were included in the second group depending on indicators of the first group and 7 (R² = from 0.607 to 0.888) from 15 possible models of indicators which were entered to the third group depending on the indicators of the first and second groups. In young women with a wide type of face, the constructed models of indicators included in the second group, depending on the indicators of the first group, most often include the distance Ar-Go (28.6 %) and the angle POr-NBa and the ratio S-ar:ar-Go (14.3 %), and to the models of indicators included in the third group depending on the indicators of the first and second groups – the distances A-NPog and Xi-Pm and the angle NBa-PtG (10.3 % each).


1989 ◽  
Vol 22 (3) ◽  
pp. 136-150 ◽  
Author(s):  
Rob White

This paper attempts to locate changes in young people's involvement in crime, and the policing of young people, within the context of a changing political economy and the broken transitions experienced by a significant proportion of young men and young women. It begins by significant proportion of young men and young women. It begins by discussing how many young working class people have been excluded from the formal waged economy due to structural changes in the labour market. The paper then explores the relationship between the “cash crisis” affecting many unemployed school leavers, and their income and lifestyle options in the spheres of the informal waged economy, the informal unwaged economy, and the criminal economy


2021 ◽  
Author(s):  
A.M. Bragina

Were examined 120 young men and young women. The analysis of the component composition was carried out using bioimpedance analysis by the MEDASS device. The coefficient of the aging rate was calculated according to the formula of A.G. Gorelkina. A correlation was established between the components of body composition and the rate of aging. The probability of accelerated aging of the body increases in the presence of excess fat mass. 25% of young men and 18.3% of young women belong to the risk group with an increased content of adipose tissue and a reduced content of skeletal muscles. Key words: aging, biological age, body component composition, students.


2021 ◽  
pp. 26-33
Author(s):  
I.Yu. Drachevska ◽  
М.О. Dmitriev ◽  
O.I. Popova ◽  
T.V. Chugu ◽  
I.V. Gunas

In Ukrainian young men (n=49) or young women (n=76) with orthognathic occlusion with different face types, numerous reliable and tendencies of differences of cephalometric parameters by the Stainer method were established. Among the indicators belonging to the second group (indicators of the upper and lower jaws according to the Steiner method), significant differences were found only between young women with a very wide face and other types of faces. Among the indicators belonging to the third group (indicators by the Steiner method that characterize the position of each individual tooth relative to each other, cranial structures and soft tissue profile of the face), more pronounced differences are also found between young women with very wide faces and other facial types; among young men – with representatives with a wide face compared to the middle and narrow face types. Among the cephalometric parameters belonging to the second group of indicators, the expressed manifestations of sexual dimorphism of cephalometric parameters are established only for linear indicators; among the parameters belonging to the third group of indicators, the manifestations of sexual dimorphism are established for both linear and angular indicators.


1993 ◽  
Vol 2 (3) ◽  
pp. 52-55 ◽  
Author(s):  
Michael Collins ◽  
Robert McDonald ◽  
Robert Stanley ◽  
Timothy Donovan ◽  
C. Frank Bonebrake

This report describes an unusual and persistent dysphonia in two young women who had taken a therapeutic regimen of isotretinoin for intractable acne. We report perceptual and instrumental data for their dysphonia, and pose a theoretical basis for the relationship of dysphonia to this drug. We also provide recommendations for reducing the risk of acquiring a dysphonia during the course of treatment with isotretinoin.


Crisis ◽  
2011 ◽  
Vol 32 (5) ◽  
pp. 246-253 ◽  
Author(s):  
Gretchen E. Ely ◽  
William R. Nugent ◽  
Julie Cerel ◽  
Mholi Vimbba

Background: The relationship between suicidal thinking and adolescent dating violence has not been previously explored in a sample of adolescent abortion patients. Aims: This paper highlights a study where the relationship between dating violence and severity of suicidal thinking was examined in a sample of 120 young women ages 14–21 seeking to terminate an unintended pregnancy. Methods: The Multidimensional Adolescent Assessment Scale and the Conflict in Adolescent Relationships Scale was used to gather information about psychosocial problems and dating violence so that the relationship between the two problems could be examined, while controlling for the other psychosocial problems. Results: The results suggest that dating violence was related to severity of suicidal thinking, and that the magnitude of this relationship was moderated by the severity of problems with aggression. Conclusions: Specifically, as the severity of participant’s general problems with aggression increased, the magnitude of the relationship between dating violence and severity of suicidal thinking increased. Limitations of the study and implications for practice are discussed.


Sains Insani ◽  
2018 ◽  
Vol 2 (1) ◽  
pp. 17-27
Author(s):  
Megat Ayop Megat Arifin ◽  
Abd. Halim Ahmad

Whitsleblowing is one of the positive practices in organizations that are able to raise the level of integrity among the members of an organization. However, the roles of whistleblowing also inevitably invites a response, especially among members of the organization itself. This is because such practices are viewed as one factor that may be detrimental to the organization in addition to revealing the reporter (whistleblower) to some external threats and intimidation of discrimination within the organization. This paper is an attempt to examine the relationship between perceptions of members of the Royal Malaysian Police (RMP) Contingent of Perak through the role of whistleblowing practices to increase the perception of the integrity of the members. Next, identify the purpose of the whistleblowing and its effect on the integrity of the members of the organization. This study used a descriptive quantitative analysis to identify patterns of relationship that exists between the perception of whistleblowing practices with perceptions of increased integrity based on three basic variables of demographic factors, response to whistleblowing and the impact of making the report. The results showed that members of the Perak’s police have a positive perception of whistleblowing practices which are seen to be done in improving the integrity of the members.Keywords: whistleblowing, perception, RMP members, culture, integrity, organization, influence. ABSTRAK: Whitsleblowing merupakan salah satu amalan positif dalam organisasi yang mampu untuk meningkatkan tahap integriti ahli-ahli dalam sesebuah organisasi. Namun begitu, amalan whistleblowing juga turut tidak dapat mengelak daripada mengundang pelbagai respon khususnya dalam kalangan ahli organisasi itu sendiri. Amalan sebegini turut dilihat sebagai salah satu faktor yang boleh memudaratkan organisasi di samping mendedahkan pelapor (whistleblower) kepada beberapa bentuk ancaman ugutan dari luar dan diskriminasi dalam organisasi. Kertas ini merupakan satu upaya untuk melihat perkaitan antara persepsi anggota Polis Diraja Malaysia (PDRM) Kontinjen Perak melalui peranan amalan whistleblowing terhadap persepsi peningkatan integriti anggota. Seterusnya, mengenalpasti maksud whistleblowing dan pengaruhnya terhadap tahap integriti anggota dalam organisasi. Kajian ini menggunakan analisis kuantitatif berbentuk deskriptif bagi mengenalpasti corak hubungan yang wujud antara persepsi terhadap amalan whistleblowing dengan persepsi terhadap peningkatan integriti berdasarkan tiga pembolehubah asas iaitu faktor demografi, tanggapan terhadap whistleblowing dan kesan daripada tindakan membuat laporan. Dapatan kajian menunjukkan bahawa anggota PDRM Perak mempunyai persepsi yang positif terhadap whistleblowing yang mana ianya dilihat perlu dilaksanakan dalam meningkatkan integriti anggota.Kata kunci: whistleblowing, persepsi, amalan, anggota PDRM, budaya, integriti, organisasi, pengaruh.  


Sign in / Sign up

Export Citation Format

Share Document