Lack of agreement between objective and subjective measures in the evaluation of masticatory function: A preliminary study

Lack of agreement between objective and subjective measures in the evaluation of masticatory function: A preliminary study

Author Pedroni-Pereira, Aline Google Scholar
Salome Marquezin, Maria Carolina Autor UNIFESP Google Scholar
Araujo, Darlle Santos Google Scholar
Pereira, Luciano Jose Google Scholar
Bommarito, Silvana Autor UNIFESP Google Scholar
Castelo, Paula Midori Autor UNIFESP Google Scholar
Abstract The evaluation of mastication is important to understand the masticatory behavior and diagnose feeding difficulties. The objective of this preliminary study was to verify if there is agreement between objective and subjective validated methods of chewing evaluation in a convenience sample which consisted of 32 adolescents (mean 15.5 years), complete permanent dentition and free of tooth decay. The Quality of Masticatory Function Questionnaire with the Food-Mastication, Habits, Meat, Fruit and Vegetables domains was used in the subjective evaluation. The objective aspects consisted of maximum bite force (BF) and masticatory performance (MP) by mastication of cubes of test-material and sieving to determine the median particle size (X-50) and distribution in the sieves ("b"), and by the colorimetric method using colorchangeable chewing gum. Data were submitted to exploratory analysis, normality test and correlation tests (Pearson/Spearman). The correlation between BF and X-50 (r = -0.43

p = 0.02) and between BF and MP chewing gum. (r = 0.53

p = 0.002) was significant with large effect size. The MP evaluated by chewing gum correlated with X-50 (r = 0.34

p = 0.055), but not with "b" (r = -0.06

p = 0.73), while "b" correlated only with X-50 (r = 0.52, p = 0.002). No significant correlation was observed between the objective measures and the total score of the subjective evaluation

only a negative correlation was observed between "b" and Meat domain (r = 0.40

p = 0.023). The objective methods showed moderate correlation with each other and no agreement between the objective and subjective methods was observed in this sample of healthy adolescents, emphasizing the importance of both aspects in the evaluation of masticatory function.
Keywords Mastication
Diagnostic self evaluation
Bite force
xmlui.dri2xhtml.METS-1.0.item-coverage Oxford
Language English
Sponsor State of Sao Paulo Research Foundation (FAPESP, SP, Brazil)
Grant number FAPESP: 2014/24804-4
Date 2018
Published in Physiology & Behavior. Oxford, v. 184, p. 220-225, 2018.
ISSN 0031-9384 (Sherpa/Romeo, impact factor)
Publisher Pergamon-Elsevier Science Ltd
Extent 220-225
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000423637200029

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