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Evaluation of the masticatory biomechanical function in Down syndrome and its Influence on sleep disorders, body adiposity and salivary parameters
Author(s) -
Gomes Mônica Fernandes,
Giannasi Lilian Chrystiane,
FillietazBacigalupo Elaine,
Mancilha Gabriela Pinto,
Carvalho Silva Gabriela Raine,
Soviero Laura Dias,
Silva Gabriella Yasmin Santos,
Nazario Letícia de Miguel,
Dutra Marignês Theotonio dos Santos,
Silvestre Pedro Ribeiro,
Oliveira Luis Vicente Franco,
Nacif Sérgio Roberto,
Oliveira Ezequiel Fernandes,
Serafim Irene Moreira,
Pereira Bruna Dicieri,
Greca Amanda Reis,
Goulart Maria das Graças Vilela,
Rode Sigmar de Mello,
Tanaka Marcia Hiromi,
KogaIto Cristiane Yumi,
Amorim José Benedito de Oliveira,
Salgado Miguel Angel Castillo
Publication year - 2020
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/joor.13023
Subject(s) - masticatory force , medicine , saliva , polysomnography , overweight , anthropometry , bite force quotient , obesity , body mass index , obstructive sleep apnea , physiology , cardiology , endocrinology , physical therapy , dentistry , apnea
Objective To evaluate the phenotypic features of the masticatory biomechanics in atypical subjects with Down syndrome (DS). Its influence was analysed on sleep disorders, body adiposity and its risks, and some physicochemical properties of saliva. Methods Seventy subjects were enrolled to assess masticatory biomechanical function and divided into two groups: DS and control groups. Electrical activities of the masseter and temporal muscles (at rest and in maximum voluntary clench‐MVC), maximum bite force‐MBF and maximum mouth opening‐MMO were investigated. Among the atypical subjects, just 24 participants underwent the anthropometry, the polysomnography II and the saliva testing (salivary flow rate‐SFR, buffer capacity‐BC and salivary cortisol levels, morning/SC‐AM and night/SC‐PM). Results MVC and MBF values showed high statistical significance in the control group ( P < .001) than in the DS group of 35. MMO values were slightly increased in the DS group in relation to the control group. Overweight and obesity were found in both genders. Atypical women showed higher risk to develop cardiovascular‐metabolic diseases than in atypical men. OSA severe was 20% for atypical women and 42.8% for atypical men, whereas snoring index was present in all genders. SFR was reduced in 100% of atypical subjects (hyposalivation in 10% women and 28.5% men). Furthermore, 100% BC, 66.6% SC‐AM and 91.6% SC‐PM showed normal patterns. Conclusion Masseter and temporal muscle hypotonia was found in all atypical subjects with DS. This muscle dysfunction strongly was related to overweight/obesity, risks for development of cardiovascular/metabolic diseases, OSA severity, successive snoring episodes and salivary flow reduction in DS.