scholarly journals PREDICTION OF THE DEVELOPMENT OF PERIODONTAL DISEASE

2021 ◽  
Vol 65 (2) ◽  
Author(s):  
Stepan Vadzyuk ◽  
◽  
Yuliana Boliuk ◽  
Mykhailo Luchynskyi ◽  
Ihor Papinko ◽  
...  
Keyword(s):  
Neural Networks ◽  
Young People ◽  
Periodontal Disease ◽  
Oral Hygiene ◽  
Nervous Activity ◽  
Psychological Testing ◽  
Statistical Prediction ◽  
Heart Rate Variability Analysis ◽  
Autonomous Regulation ◽  
Higher Nervous Activity

Introduction. Periodontal tissue disease is one of the most common dental pathologies, which among young people occurs with a frequency of 60% to 99%. Therefore, the problem of finding new links in the pathogenesis, the reasons for the growing prevalence of periodontal disease, as well as effective methods for its early diagnosis and prevention, is relevant. Objectives. Establish the possibility of using individual stomatological and psychophysiological features to predict the development of periodontal disease. Materials and methods. 156 students aged 18-23 years old without systemic diseases were surveyed for some features of oral hygiene and nutrition. Also the study subjects underwent a dental examination, psychological testing and the assessment of individual typological features of higher nervous activity and autonomous regulation. The model for statistical prediction were designed using neural networks. Results. Two neural networks were designed with the best predictors among dental history and examination, psychological testing, parameters of higher nervous activity and heart rate variability analysis. The diagnostic sensitivity of the first prognostic model was 83.33 % and the specificity was 92.31 %. The second model was characterized by 90.00 % sensitivity and 78.57 % specificity. Conclusion. The method of modeling using neural networks based on the index assessment of the condition of teeth hard tissues, the level of oral hygiene and the evaluation of psychophysiological features can effectively predict the risk of periodontal disease development in young people

Neurons versus Networks: The Interplay between Individual Neurons and Neural Networks in Cognitive Functions

2016 ◽  
Vol 23 (4) ◽  
pp. 341-355 ◽  
Author(s):  
Yuri I. Arshavsky
Keyword(s):  
Neural Networks ◽  
Complex Networks ◽  
Cognitive Neuroscience ◽  
Cognitive Functions ◽  
Medial Temporal Lobe ◽  
Nervous Activity ◽  
Intracellular Level ◽  
Abstract Concepts ◽  
Electrical Potentials ◽  
Higher Nervous Activity

The main paradigm of cognitive neuroscience is the connectionist concept postulating that the higher nervous activity is performed through interactions of neurons forming complex networks, whereas the function of individual neurons is restricted to generating electrical potentials and transmitting signals to other cells. In this article, I describe the observations from three fields—neurolinguistics, physiology of memory, and sensory perception—that can hardly be explained within the constraints of a purely connectionist concept. Rather, these examples suggest that cognitive functions are determined by specific properties of individual neurons and, therefore, are likely to be accomplished primarily at the intracellular level. This view is supported by the recent discovery that the brain’s ability to create abstract concepts of particular individuals, animals, or places is performed by neurons (“concept cells”) sparsely distributed in the medial temporal lobe.

PERIODONTAL DISEASE STATUS, KNOWLEDGE, ATTITUDE, PRACTICE AND TREATMENT NEEDS OF PREGNANT WOMEN

2018 ◽  
Vol 8 (6) ◽  
pp. 138-144
Author(s):  
Thien Nguyen Duc ◽  
Tai Tran Tan
Keyword(s):  
Periodontal Disease ◽  
Pregnant Women ◽  
Oral Hygiene ◽  
Disease Status ◽  
Incidence Rates ◽  
Gestation Period ◽  
Treatment Needs ◽  
Cross Sectional ◽  
Mean Values ◽  
The Mean

Background: Periodontal disease is a prominent and important issue of public health, especially in pregnant women. The objective of this study is to describe the clinical characteristics; learn knowledge, attitudes, practice oral hygiene and assess the need for treatment of periodontal disease in pregnant women. Subjects and Methods: A cross-sectional study of 210 pregnant women who visited the Department of Obstetrics and Gynecology at the Hue University of Medicine and Pharmacy Hospital. Clinical examination and interview questions on knowledge, attitudes and practice of oral care for all subjects. Results: The incidence of gingivitis was 100%, with mild gingivitis of 4,3% and moderate gingivitis of 95.7%. There was a difference in incidence rates of gingivitis in the gestational period (p<0.001). The incidence of periodontitis is 17.6% and there is no difference in gestational age (p>0.05). The mean values of GI and BOP indices differed by gestation period (p<0.05) and PD, OHI-S, PlI have statistically significant relationship with gestation period (p>0.05). The incidence of periodontal disease is 80.5%; The percentage of pregnant women who abstain from brushing their teeth after birth is 61.4%. Prevalence of brushing once a day: 7.1%; Twice a day: 70.5% and 3 times daily: 22.4%; The mean values of GI, PD, BOP, OHI-S and PlI were inversely proportional to the number of brushing (p<0.001). The rate of dental hygiene is just 3.3%; The rate of oral hygiene, dental plaque and plaque removal was 94,3%; The proportion of subjects required for intensive treatment is 2.4%. Conclusion: Periodontal disease, especially for pregnant women, is high. It is necessary to educate the knowledge, attitudes and practice of proper oral hygiene and to better meet the demand for periodontal disease treatment for pregnant women. Key words: Periodontal disease, pregnant women, knowledge, attitude, practice for oral hygiene, treatment needs

scholarly journals Examining the impact of oral hygiene advice and/or scale and polish on periodontal disease: the IQuaD cluster factorial randomised controlled trial

BDJ ◽  
2021 ◽  
Vol 230 (4) ◽  
pp. 229-235
Author(s):  
Jan Clarkson ◽  
Craig Ramsay ◽  
Thomas Lamont ◽  
Beatriz Goulao ◽  
Helen Worthington ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
Periodontal Disease ◽  
Oral Hygiene ◽  
Controlled Trial ◽  
Randomised Controlled ◽  
The Impact

Types of Higher Nervous Activity in Pigs: Characteristics of Behavior and Effects of Technological Stress

2021 ◽  
Author(s):  
O. V. Danchuk ◽  
M. M. Broshkov ◽  
V. I. Karpovsky ◽  
O. M. Bobrytska ◽  
M. I. Tsvivlikhovsky ◽  
...  
Keyword(s):  
Nervous Activity ◽  
Higher Nervous Activity ◽  
Technological Stress

scholarly journals BANA-Positive Plaque Samples Are Associated with Oral Hygiene Practices and Not CD4+ T Cell Counts in HIV-Positive Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Cathy Nisha John ◽  
Lawrence Xavier Graham Stephen ◽  
Charlene Wilma Joyce Africa
Keyword(s):  
T Cell ◽  
Periodontal Disease ◽  
Oral Hygiene ◽  
Periodontal Diseases ◽  
Cd4 T Cell ◽  
Hiv Positive ◽  
Hygiene Practices ◽  
Cell Counts ◽  
Probing Depth ◽  
Clinical Indices

Background. The “red complex” microorganisms, namely,Porphyromonas gingivalis,Treponema denticola, andTannerella forsythiaare considered as potential pathogens causing HIV-associated periodontal diseases. Moreover, it has been recognized that an association exists between CD4+ T cell counts and periodontal disease progression.Objective. To establish whether CD4+ T cell counts or oral hygiene plays a greater role in producing BANA-positive results in HIV-associated periodontal disease.Materials and Methods. One hundred and twenty HIV-positive patients participated in the study, and their CD4+ T cell counts were obtained from their medical records. The six Ramfjord teeth were used for evaluating periodontal clinical indices and subgingival plaque sampling. BANA test was used for the detection and prevalence of the “red complex” bacteria in plaque samples.Results. A majority of 69.17% HIV-positive patients were BANA-positive. No significant associations were found between BANA and CD4+ T cell counts. A highly significant association was found between BANA with probing depth and clinical attachment level (P≤0.0001) and between BANA and the use of interdental aids (P=0.0168).Conclusion. HIV-associated periodontal diseases are strongly related to oral hygiene practices rather than the effect of CD4+ T cell counts, and the use of interdental aids was marked as a significant predictor of BANA-negative plaque samples.

Main problems of pathological physiology of human higher nervous activity

1934 ◽  
Vol 30 (6) ◽  
pp. 628-629
Author(s):  
I. Galant
Keyword(s):  
Nervous Activity ◽  
Pathological Physiology ◽  
Pile Up ◽  
Higher Nervous Activity

The book consists of two parts: 1. Basic Problems of the Pathophysiology of the Brainstem (Palencephalon); 2) Basic Problems of the Pathophysiology of the Major Hemispheres (Non-encephalonases) of Man, and is a large pile-up of all kinds of literature, old and new, on brain pathophysiology, about which (pile-up) the author says in the preface that he "could not always avoid repetition and some mosaicism".

Sign in / Sign up

Export Citation Format

Share Document