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Nutritional, masticatory and salivary evaluation of pre pubertal overweight and obese children

Grant number: 11/21952-4
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2012
Effective date (End): February 29, 2016
Field of knowledge:Health Sciences - Dentistry - Pediatric Dentistry
Principal researcher:Paula Midori Castelo Ferrua
Grantee:Maria Carolina Salomé Marquezin
Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil


The aim of this study is to assess the relationship between masticatory and salivary function and anthropometric and nutritional assessments of 200 pre pubertal children of both genders. The chewing function will be assessed by means of masticatory performance evaluation. The masticatory performance will be determined by the individual capacity of the fragmentation of a test food (Optocal plus) and sieving technique. Salivary flow rate will be determined by collecting saliva by mechanical stimulation (chewing Parafilm®) and without stimulation, and then pH and the concentrations of total protein, amylase, calcium, urea and lipids will be determined by spectrophotometry. In addition, the limiar will be evaluated to detect the four primary tastes (sweet, salty, sour and bitter) in three different concentrations. These variables of the masticatory function will be associated with anthropometric (body mass index and arm and abdominal circumferences) and food intake by 24-hour recall and the calculation of estimated dietary intake by means of a software. The description and the relationship between the variables under study will be evaluated using descriptive statistics, Komolgorov-Smirnov normality test, correlation tests (Pearson or Spearman) and tests of means ("t" Student / Mann-Whitney test). Multiple linear regression models with stepwise backward elimination will verify the relationship between anthropometric measurements (as the dependent variables) and the flow, composition and pH of saliva, masticatory performance, sensory analysis and food intake, controlling for gender and age (± = 0.05).

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)
MARQUEZIN, MARIA CAROLINA S.; ARAUJO, DARLLE S.; AMATO, JULIANA N.; BARBOSA, TAIS DE S.; FONSECA, FERNANDO L. A.; GAVIAO, MARIA B. D.; CASTELO, PAULA MIDORI. A cluster analysis of the relationship between sucking habits, consistency of food ingested, and taste sensitivity in children. JOURNAL OF TEXTURE STUDIES, v. 50, n. 3, p. 248-256, JUN 2019. Web of Science Citations: 0.
SALOME MARQUEZIN, MARIA CAROLINA; PEDRONI-PEREIRA, ALINE; ARAUJO, DARLLE SANTOS; ROSAR, JOAO VICENTE; BARBOSA, TAIS S.; CASTELO, PAULA MIDORI. Descriptive analysis of the masticatory and salivary functions and gustatory sensitivity in healthy children. ACTA ODONTOLOGICA SCANDINAVICA, v. 74, n. 6, p. 443-448, 2016. Web of Science Citations: 5.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MARQUEZIN, Maria Carolina Salomé. Salivary evaluation in healthy children and in metabolic disorders : clinical and in vitro studies. 2016. Doctoral Thesis - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba.

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