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Awakening salivary cortisol levels of children with sleep bruxism.
MedLine Citation:
PMID:  22465270     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The study of factors potentially associated with sleep bruxism (SB) may contribute to a better understanding of its nature and etiology. OBJECTIVES: In this way, this cross-sectional study aimed to evaluate the association between SB and salivary cortisol levels, heart rate, and other parafunctional habits. DESIGN AND METHODS: Data were collected in 100 healthy caries-free children of both genders, aged 7.23±0.60years, with (n=27) and without (n=73) signs and symptoms of SB by interview with the parents and clinical and physical examination. Salivary cortisol was measured immediately after waking up and 30min after awakening for the determination of the area under the response curve (AURC). Data were analyzed by descriptive statistics, normality test, and Spearman correlation test; a stepwise logistic regression model was used to verify the association between SB, as the dependent variable, and age, gender, body mass index (BMI), heart rate, presence of sucking habit, nail biting, enuresis, and AURC (α=0.05). RESULTS: AURC did not correlate with BMI and heart rate. Only AURC showed a significant negative association with SB, while age, gender, BMI, heart rate and other parafunctional habits did not associate with SB. CONCLUSION: In the studied sample, children with SB were more likely to present low concentrations of awakening salivary cortisol.
Authors:
Paula Midori Castelo; Taís de Souza Barbosa; Luciano José Pereira; Fernando Luiz Affonso Fonseca; Maria Beatriz Duarte Gavião
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-19
Journal Detail:
Title:  Clinical biochemistry     Volume:  -     ISSN:  1873-2933     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-4-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0133660     Medline TA:  Clin Biochem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Inc.
Affiliation:
Department of Biological Sciences, Faculty of Pharmacy and Biochemistry, Federal University of São Paulo (UNIFESP), Rua Artur Riedel, 275, CEP 09972-270, Diadema, SP, Brazil.
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