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Association among oral functions, presence of signs and symptoms of sleep bruxism and salivary cortisol and alpha-amylase levels in children with or without asthma

Grant number: 11/16147-5
Support type:Scholarships in Brazil - Master
Effective date (Start): May 01, 2012
Effective date (End): April 30, 2014
Field of knowledge:Health Sciences - Dentistry - Pediatric Dentistry
Principal researcher:Taís de Souza Barbosa
Grantee:Juliana Neide Amato
Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil

Abstract

Asthma is considered one of the most common diseases in childhood, and is certainly a major chronic respiratory disease of children and adolescents. The nasal obstruction associated with asthma may be a causal and perpetuating factor of orofacial alterations as changing the breathing pattern to mouth breathing. The negative impacts on everyday life of these patients may be associated with increased levels of cortisol and alpha-amylase in saliva, as response to stressful events. Thus, this study aimed to evaluate 52 asthmatic children and 52 controls, aged seven to nine years, both genders, receiving care in a public health care clinic of Piracicaba - SP, Brazil. The risk factors associated with asthma will be assessed by applying a structured questionnaire to parents or caregivers. The diagnosis of sleep bruxism will be performed according to the criteria of the International Classification of Sleep Disorders, considering the parental/caregiver report about the presence of grinding sounds at night, at least three times a week, and one or more of the following characteristics: 1) abnormal wear of teeth, 2) mandibular discomfort or pain on waking. The occlusion will be evaluated using the Index of Orthodontic Treatment Need (IOTN) - Dental Health Component. The Brazilian Portuguese version of the Nordic Orofacial Test-Screening (NOT-S) will be used to assess the oral functions. Saliva sampling will be collected in two days (week and weekend), and at three periods, after awakening (fasting), 30 minutes after awakening (fasting) and at night (bedtime). The results will be submitted to descriptive statistical analysis, Kolmogorov-Smirnov test and Chi-Square and Fisher's exact tests. Unpaired t-test and Mann-Whitney will be used to compare the means between groups with and without asthma (where appropriate). The associations between independent variables with the presence or absence of asthma (as dependent variable) will be evaluated using multiple logistic regression. The significance level will set at ± = 0,05. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
AMATO, JULIANA NEIDE; TUON, ROGERIO ANTONIO; CASTELO, PAULA MIDORI; DUARTE GAVIAO, MARIA BEATRIZ; BARBOSA, TAIS DE SOUZA. Assessment of sleep bruxism, orthodontic treatment need, orofacial dysfunctions and salivary biomarkers in asthmatic children. ARCHIVES OF ORAL BIOLOGY, v. 60, n. 5, p. 698-705, MAY 2015. Web of Science Citations: 4.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.