scholarly journals Correlations of linear sizes of molars with cephalometric indicators of practically healthy men of the southern region of Ukraine

2020 ◽  
pp. 36-46
Author(s):  
J. S. Soboń ◽  
O. V. Cherkasova ◽  
V. I. Gunas ◽  
L. V. Babych ◽  
O. O. Kotsyura
Keyword(s):  
Computed Tomography ◽  
Southern Region ◽  
Healthy Men ◽  
Ethnic Populations ◽  
Lower Jaw ◽  
Facial Skull ◽  
High Prevalence ◽  
Upper Jaw ◽  
The Relationship ◽  
Autonomous Republic

The high prevalence of pathologies of the dental and tooth-jaw system both in Ukraine and abroad requires scientists to search for new, fundamental discoveries, in particular, to identify patterns of the relationship between cephalometric and odontometric indicators within certain ethnic populations. The purpose of the study is to establish the features of the correlations of computed tomography sizes of molars with cephalometric parameters of practically healthy men in the southern region of Ukraine. 33 practically healthy men of the first mature age, inhabitants of the southern region of Ukraine (from Mykolayiv, Kherson, Odesa, Zaporizhia regions and the Autonomous Republic of Crimea) underwent cephalometry and cone-beam computed tomography followed by odontometry of molars. The correlations between odonto- and cephalometric parameters were assessed in the license package “Statistica 6.1” using non-parametric Spearman statistics. In almost healthy men of the southern region of Ukraine in the qualitative analysis of multiple nature, mostly direct reliable and medium unreliable correlations, found only between most sizes of molars on the lower jaw and the length and height of the nose. Quantitative analysis revealed the most significant correlations between computed tomography sizes of molars and face sizes (7.4 % on the upper jaw, most of which are inverse, and 13.2 % on the lower jaw, almost evenly straight and inverse). With the indicators of the skull, the relative majority of reliable, mostly inverse correlations are observed with the height of the teeth, their crowns and the length of the roots (on the upper jaw 11.4 %, on the lower jaw 5.4 %); and with indicators of the facial skull – almost evenly with the height of the teeth, their crowns and the length of the roots (on the upper jaw 6.4 %, on the lower jaw 14.6 %, in both cases mostly reverse) and with vestibular-lingual and mesio-distal dimensions (on the upper jaw 8.7 %, mostly reverse, on the lower jaw 11.8 %, mostly straight). The obtained results of correlation analysis of computed tomography sizes of molars with cephalometric indicators and indices confirm the population specificity of the features of the dental system and are necessary for the correct construction of regression models.

scholarly journals Correlations of linear sizes of molars with cephalometric indicators of practically healthy men of the northern region of Ukraine

2020 ◽  
Vol 26 (1) ◽  
pp. 37-47
Author(s):  
S.S. Polishchuk ◽  
O.O. Kotsyura ◽  
M.O. Dmitriev ◽  
V.O. Orlovskiy ◽  
M.V. Popov
Keyword(s):  
Medical Science ◽  
Northern Region ◽  
Dental Practice ◽  
Practical Application ◽  
Healthy Men ◽  
Lower Jaw ◽  
Building Models ◽  
Facial Skull ◽  
Upper Jaw ◽  
The Relationship

The question of the relationship between the metric characteristics of cranial structures and odontometric parameters, and the possibility of building models based on them, which can later find their practical application in dental practice, remain a pressing problem of modern medical science. The purpose of the study is to establish the features of the relationship between the linear dimensions of molars with the cephalometric parameters of the brain and facial skull of practically healthy men in the northern region of Ukraine. 32 practically healthy residents of the northern region of Ukraine (from Kyiv, Zhytomyr, Sumy and Chernihiv regions) underwent computed tomography followed by odontometry of molars and cephalometry. The correlations between odontometric and cephalometric parameters were assessed using Spearman’s nonparametric statistics in the licensed package “Statistica 6.1”. The peculiarities of the correlations of the studied characteristics of molars with the indicators of the cerebral skull are established – multiple, only direct reliable (r = 0.35-0.57) and unreliable (r = 0.30-0.35) average correlation force (18.7% on the upper jaw, of which the relative majority with vestibular-lingual and mesio-distal dimensions and 24.1% on the lower jaw, of which the relative majority with the height of the teeth, their crowns and the length of the tooth roots); as well as with the indicators of the facial skull – mostly direct reliable (r = 0.35-0.51) and unreliable medium strength (r = 0.30-0.37) correlations, in most cases of a single nature (6.0% on the upper jaw and 6.6% on the lower jaw, almost uniformly with the height of the teeth, their crowns, root length, vestibular-lingual and mesio-distal dimensions). The results of correlation analysis of craniofacial structures are necessary for the correct construction of mathematical models, which can later find their practical application in dental practice and forensic medicine.

scholarly journals Features of the structure of the alveolar process in patients with gnatic form of mesial occlusion

2020 ◽  
Vol 18 (3) ◽  
pp. 15-25
Author(s):  
A. B. Mallaeva ◽  
N. S. Drobysheva
Keyword(s):  
Alveolar Bone ◽  
Structural Features ◽  
Alveolar Ridge ◽  
Alveolar Process ◽  
Lower Jaw ◽  
Natural Mechanism ◽  
Upper Jaw ◽  
Relationship Of ◽  
Dentoalveolar Compensation ◽  
The Relationship

Aim. To assess the size of the alveolar ridge / part of the jaws in patients with gnathic mesial occlusion of the dentition.Materials and methods. A study was carried out, during which we determined the structural features of the alveolar ridge of the upper and lower jaws of 50 adult patients (from 18 to 44 years old), and also studied the presence / absence of the relationship of this parameter with the inclination of the teeth.Results. The smallest thickness of the alveolar bone in the upper jaw was observed in the area of the mesio-buccal root of the first molars and in the area of the first premolars and canines. The smallest thickness of the alveolar bone in the lower jaw was observed in the area of the vestibular surface of the first and second premolars, canines and incisors. The greatest thickness of the alveolar bone is observed in the distal-buccal region of the second molars.Conclusions. A natural mechanism promotes dentoalveolar compensation, while maintaining the amount of bone in the region of the vestibular and lingual alveolar bones to maintain the integrity of the periodontium.

Morphometric analysis of relationships of basic dimensions of dental arts taking into account individual gnatic types

2019 ◽  
Vol 1 (5) ◽  
pp. 37-44 ◽  
Author(s):  
S. V. Dmitrienko ◽  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. O. Ivanyuta
Keyword(s):  
Permanent Teeth ◽  
Dental Arch ◽  
Aesthetic Result ◽  
Lower Jaw ◽  
Biometric Measurements ◽  
Upper Jaw ◽  
Artificial Teeth ◽  
The Relationship ◽  
Plaster Models ◽  
Lower Arch

Aim. Determining the relationship between the main parameters of the dental arches of the upper and lower jaw in people with physiological occlusion of permanent teeth. Materials and methods. The research materials were the results of biometric measurements of plaster models of dentition of 119 people of the first period of adulthood with a full set of permanent teeth, physiological occlusion, and various gnathic and dental types of dental arches. The gnathic variants (mesognathy, dolichognathy, brachygnathy) of the dental arches were determined taking into account the dental index calculated as the ratio of the half of the sum of the 14-tooth crowns to the width of the dental arch between the second molars. Types of the dental system (normodontia, macrodontia, microdontia) were determined by the results of the summation of the width of the crowns of the upper teeth. Results. According to the results of biometric studies, it was established that regardless of the gnathic and dental type of dental arches, the ratio of the sum of the mesial-distal sizes of 14 teeth of the upper jaw to the same parameters of the lower jaw averaged 1.065 ± 0.005. The ratio of the sum of the width of the crowns of 7 teeth of each half of the dental arch to the size of the frontal-distal diagonal was 1.065 ± 0.005 both on the upper and on the lower dental arch. The ratio of the diagonal dimensions of the upper dental arch to the same size of the lower arch was also 1.065 ± 0.01 for all types of dental arches. Conclusion. The obtained ratios, as highly informative, diagnostically significant indicators, can be used to determine the compliance of the main dimensions of the dental arches of the upper and lower jaws, to characterize the physiological occlusion, to select the size of artificial teeth in people with complete adentia, to predict the shape and size of dental arches when treatment of patients with occlusion anomalies in order to achieve an optimal functional and aesthetic result.

scholarly journals Features correlations of the sizes of molars with cephalometric indicators of men of the western region of Ukraine

2020 ◽  
Vol 26 (2) ◽  
pp. 51-61
Author(s):  
V.I. Gunas ◽  
O.O. Kotsyura ◽  
L.V. Babych ◽  
Yu.G. Shevchuk ◽  
O.V. Cherkasova
Keyword(s):  
Statistical Processing ◽  
Western Region ◽  
Average Strength ◽  
Dental Services ◽  
Healthy Men ◽  
Computed Tomographic ◽  
Facial Skull ◽  
Medium Strength ◽  
The Western Region ◽  
The Relationship

Expanding the theoretical knowledge of medical anthropology in the modern field of dental services is one of the main drivers of progress in the orthodontic field. The only way to successfully develop the relationship of these disciplines is to create and fill a database of normative data and search for correlations between various, both obviously related and, at first glance, completely unrelated structures of the human body. The purpose of the study was to determine the features of the relationship between the linear dimensions of molars with the cephalometric parameters of practically healthy men of the first mature age, residents of the western region of Ukraine. Cone-beam computed tomography was performed in 36 practically healthy men of the first mature age, residents of the western region of Ukraine (from Rivne, Volyn, Chernivtsi, Lviv, Ternopil, Khmelnytsky, Ivano-Frankivsk and Zakarpattia regions) followed by odontometry research and cephalometry. Statistical processing of the results was performed in the license package “Statistica 6.1” using non-parametric Spearman’s statistics. As a result of quantitative analysis of reliable and average strength of unreliable correlations of linear computed tomographic sizes of molars with cephalometric indicators and indices of practically healthy men of the western region of Ukraine it is established that the percentage, mainly direct, reliable and average strength of unreliable correlations of linear sizes of molars with cephalometric indices and with indicators of the cerebral or facial skull is almost no different. The largest number of reliable and medium-strength unreliable correlations of linear molars sizes with cranial indices was found with vestibular-lingual and mesio-distal tooth sizes (20.5% with upper molars and 25.0% with lower molars). The highest number of reliable and medium-strength unreliable correlations of linear molars sizes with facial skull indices was found for upper molars with tooth height, crowns and root length (10.8%) and vestibular-lingual and mesio-distal dimensions (12.8%), and for lower molars – only with vestibular-lingual and mesio-distal dimensions (19.4%). The obtained data testify to the prospects of the chosen scientific direction of research, which will further improve the work of physicians in various fields of medicine, including preventive.

scholarly journals Features of correlations of computer-tomographic sizes of premolars with cephalometric indices of practically healthy men from the western and eastern regions of Ukraine

2018 ◽  
pp. 36-42
Author(s):  
V.O. Orlovskiy ◽  
V.G. Cherkasov ◽  
V.G. Chaika
Keyword(s):  
Medical Center ◽  
Western Region ◽  
Eastern Region ◽  
Average Force ◽  
Healthy Men ◽  
Regional Features ◽  
Lower Jaw ◽  
Upper Jaw ◽  
The Western Region ◽  
East West

According to the data of modern scientific literature in order to achieve goodfunctional and aesthetic indicators, prevention of the development of relapse in theprocess of orthodontic treatment should take into account the interdependenceodometometric and cephalometric indicators. In this case, orthodontists need to makean amendment to the features of correlations characteristic of one or another ethnicgroup of the population. The purpose of this study was to establish the features of theconnections of linear computational-tomographic sizes of premolars and their roots withcephalometric indices of practically healthy men of the Western and Eastern regions ofUkraine. On the basis of the medical center "Vinintermed LTD", 71 healthy and healthymen aged from 19 to 35 years from the Western region (n = 36, residents from Volyn,Rivne, Lviv, Chernivtsi, Ternopil, Khmelnytsky, Transcarpathian and Ivano-Frankivskregions) and the Eastern region (n = 35, residents from Kharkiv, Donetsk and Luhanskregions), a cone-ray computer tomography was performed using the Veraviewepocs-3D dental cavity beam (Morita, Japan). On cone-ray computer tomograms small angularteeth of the upper and lower jaws were measured: the length of the tooth; the lengthof palatal and cheek's roots of small angular teeth of the upper and lower jaw; heightof tooth crown; vestibular-lingual dimensions of the crown and neck of the tooth;mesio-distal dimensions of the crown and neck of the tooth. Cephalometric studieswere conducted taking into account the generally accepted recommendations andanatomical points. The statistical processing of the obtained results was carried outusing the statistical software package "Statistica 6.1" using the nonparametric Spirmanmethod. A number of anthropogenetic studies confirmed the division of Ukrainians intoregional groups (East, West, North, South), divergence between them reaches a highlevel. Therefore, the difference between the correlations of odonto-kefalometricindices between regions with a larger taxonomic distance (east-west, north-south)should be expected. As a result of the conducted researches in practically healthymen the following regional features of connections of linear sizes of premolars withcephalometric indicators of a brain skull are established: the Western region is mainlydirect reliable (r = 0.34 - 0.45) and unreliable average force (r = 0.30 - 0.36) connections(9.0% on the upper jaw, of which the relative majority are with the height of teeth andtheir crowns and the length of the roots and 7.6% on the lower jaw, of which the relativemajority is mesio-distal and vestibular-lingual sizes); the Eastern region - mostly reversereliable (r = -0.34 - 0.45) and unreliable mean strength (r = -0.30 - 0.34) connections(5.1% on the upper jaw and 5.4% on the lower jaw, in both cases the relative majoritywith the height of the teeth and their crowns and the length of the roots). The followingregional peculiarities of connections were established with the indicators of the facialskull: the Western region - mostly direct (r = 0.33 - 0.57) and unreliable meanstrength (r = 0.30 - 0.42) connections (9.9% on the upper jaw and 12.2% on the lowerjaw, in both cases the relative majority of mesio-distal and horse-lingual dimensions);Eastern region - mostly direct (r = 0.34 - 0.52) and unreliable mean strength (r = 0.30 - 0.44) connections (7.4% on the upper jaw, of which the relative majority with heightteeth and their crowns and the length of the roots and 9.2% on the lower jaw, of whichthe relative majority are mesio-distal and vestibular-lingual dimensions).Keywords: regional features, premolars, cephalometry, correlations, practically healthymen

LINEAR DIFFERENCE COMPUTED TOMOGRAPHY SIZE LARGE MOLAR TEETH IN HEALTHY MEN FROM CENTRAL REGIONS OF UKRAINE

2018 ◽  
Vol 14 (63) ◽  
pp. 089
Author(s):  
М. М. Shinkaruk-Dykovytska ◽  
О. О. Kotsyura ◽  
T. O. Tepla ◽  
М. Р. Melnik ◽  
V. G. Chaika ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Healthy Men ◽  
Central Regions ◽  
Molar Teeth

Cephalometric features of connective tissue dysplasia manifestation in children and adolescents

2020 ◽  
Vol 20 (3) ◽  
pp. 174-183 ◽  
Author(s):  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. V. Dmitrienko ◽  
T. A. Kondratyeva ◽  
Yu. S. Harutyunyan
Keyword(s):  
Connective Tissue ◽  
Morphological Features ◽  
Short Branch ◽  
Lower Jaw ◽  
Carious Lesions ◽  
High Prevalence ◽  
Care Facilities ◽  
The Face ◽  
Connective Tissue Dysplasia ◽  
Brain Parts

Relevance. The high prevalence of dysplastic disorders involving connective tissue, and its negative effecton the development of dentoalveolar anomalies, carious and non-carious lesions of the teeth, periodontopathy, temporomandibular joint issues in the child population, lay the basis for improving diagnostics algorithms. Enhancing the already available standards is of greatest importance for children at the initial stages of diagnostics when evaluating the external signs of dysplastic disorders.Purpose – improving diagnostics algorithms for connective tissue dysplasia (CTD) in children in primary dental care facilities based on the evaluation of external phenotype signs and maxillofacial morphological features.Materials and methods. Depending on the external phenotype manifestations severity, as well as on laboratory, clinical and instrumental signs, the 92 children with CTD were divided into groups with mild, moderate and severe degrees of undifferentiated dysplasia. Gnathometric and biometric examinations of the maxillofacial area were performed through traditional methods, whereas the diagnosis was set following the generally accepted classifications. The diagnosis confirmation implied evaluation through cone beam computed imaging.Results. The nature and the intensity of morphofunctional disorders in the craniofacial structures (“small” stigmas) depend on the severity of connective tissue dysplastic disorders.Conclusions. The change direction vector in the facial and brain parts of cranium in children with CTD is aimed at increasing hypoplastic tendencies and dolichocephalia, proof to that being the following constitutional and morphological features: the prevalence of the vertical type of face skeleton growth over the horizontal and neutral ones; a convex face profile with a disproportionate general heights of the face skeleton; reduction of latitudinal with an increase in altitude facial parameters; a narrow short branch of the lower jaw; the upper jaw displaced downwards and forward; a decrease in the size of the apical basis of the lower dentition, the lower jaw body, as well as the height and width of the lower jaw branches. 

Use of Double-source Computed Tomography for Evaluation of the Relationship Between Smoking and Coronary Plaques

2018 ◽  
Vol 14 (6) ◽  
pp. 899-905
Author(s):  
Yue Zhao ◽  
Ya-ying Yang ◽  
Kai-yuan Cheng ◽  
Wei Zhao ◽  
Tianzhao OuYang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
The Relationship

Comparing the Effects of Immersed Versus Land-Based High-Intensity Interval Cycling on Energy Intake, Appetite Sensations and Perceived Exertion Among Healthy Men

2021 ◽  
pp. 003151252110073
Author(s):  
Lore Metz ◽  
Laurie Isacco ◽  
Maud Miguet ◽  
Pauline Genin ◽  
David Thivel ◽  
...  
Keyword(s):  
Energy Intake ◽  
High Intensity ◽  
Perceived Exertion ◽  
Area Under The Curve ◽  
Macronutrient Intake ◽  
Healthy Men ◽  
High Intensity Interval ◽  
Interval Cycling ◽  
Desire To Eat ◽  
The Relationship

Immersed exercise has been shown to induce higher energy expenditure and no difference or increase in food intake compared with similar exercise on land. In this study, we compared the effects of acute high-intensity cycling performed on land versus when immersed on subsequent energy intake (EI), appetite sensations and perceived exertion (RPE) in healthy men. Ten participants in a postprandial condition completed three experimental visits in a randomized order: a control condition (CONT); a high-intensity interval cycling exercise performed on land (HIIE-L) and the same exercise while immersed in water (HIIE-A) with a similar targeted heart rate. We observed no difference in energy and macronutrient intake and in area under the curve (AUC) for appetite sensations between sessions. The RPE at the end of HIIE-L was negatively correlated with EI (r=–0.67; p < 0.05), AUC for hunger (r=–0.86, p < 0.01), desire to eat (r=–0.78, p < 0.05) and prospective food consumption (r=–0.86, p < 0.01). Conversely, the RPE at the end of HIIE-L was positively correlated with AUC for fullness (r = 0.76 , p < 0.05). No such correlations were observed for HIIE-A. The present study was the first to observe that immersion did not influence EI after HIIE cycling, but immersion blunted the relationship between session RPE and subsequent energy intake and appetite sensations relative to HIIE on land.

scholarly journals The Influence of Pre-Procedural Imaging and Cystic Duct Cholangiography on Endoscopic Transpapillary Gallbladder Drainage in Acute Cholecystitis

Diagnostics ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1286
Author(s):  
Junya Sato ◽  
Kazunari Nakahara ◽  
Yosuke Michikawa ◽  
Ryo Morita ◽  
Keigo Suetani ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Acute Cholecystitis ◽  
Cystic Duct ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Procedure Time ◽  
Technical Success ◽  
Factors Affecting ◽  
Gallbladder Drainage ◽  
Procedural Evaluation ◽  
The Relationship

Endoscopic transpapillary gallbladder drainage (ETGBD) for acute cholecystitis is challenging. We evaluated the influence of pre-procedural imaging and cystic duct cholangiography on ETGBD. Patients who underwent ETGBD for acute cholecystitis were retrospectively examined. The rate of gallbladder contrast on cholangiography, the accuracy of cystic duct direction and location by computed tomography (CT) and magnetic resonance cholangiopancreatography (MRCP), and the relationship between pre-procedural imaging and the technical success of ETGBD were investigated. A total of 145 patients were enrolled in this study. Gallbladder contrast on cholangiography was observed in 29 patients. The accuracy of cystic duct direction and location (proximal or distal, right or left, and cranial or caudal) by CT were, respectively, 79%, 60%, and 58% by CT and 68%, 55%, and 58% by MRCP. Patients showing gallbladder contrast on cholangiography underwent ETGBD with a significantly shorter procedure time and a lower rate of cystic duct injury. No other factors affecting procedure time, technical success, and cystic duct injury were identified. Pre-procedural evaluation of cystic duct direction and location by CT or MRCP was difficult in patients with acute cholecystitis. Patients who showed gallbladder contrast on cholangiography showed a shorter procedure time and a lower rate of cystic duct injury.

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