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Reproducibility, Reliability, and Validity of Fuchsin‐Based Beads for the Evaluation of Masticatory Performance
Author(s) -
SánchezAyala Alfonso,
FariasNeto Arcelino,
Vilanova Larissa Soares Reis,
Costa Marina Abrantes,
Paiva Ana Clara Soares,
Carreiro Adriana da Fonte Porto,
MestrinerJunior Wilson
Publication year - 2016
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/jopr.12348
Subject(s) - reproducibility , masticatory force , intraclass correlation , reliability (semiconductor) , silicone , round robin test , dentistry , orthodontics , medicine , materials science , mathematics , statistics , composite material , power (physics) , physics , quantum mechanics
Purpose Rehabilitation of masticatory function is inherent to prosthodontics; however, despite the various techniques for evaluating oral comminution, the methodological suitability of these has not been completely studied. The aim of this study was to determine the reproducibility, reliability, and validity of a test food based on fuchsin beads for masticatory function assessment. Materials and Methods Masticatory performance was evaluated in 20 dentate subjects (mean age, 23.3 years) using two kinds of test foods and methods: fuchsin beads and ultraviolet‐visible spectrophotometry, and silicone cubes and multiple sieving as gold standard. Three examiners conducted five masticatory performance trials with each test food. Reproducibility of the results from both test foods was separately assessed using the intraclass correlation coefficient (ICC). Reliability and validity of fuchsin bead data were measured by comparing the average mean of absolute differences and the measurement means, respectively, regarding silicone cube data using the paired Student's t ‐test (α = 0.05). Results Intraexaminer and interexaminer ICC for the fuchsin bead values were 0.65 and 0.76 ( p < 0.001), respectively; those for the silicone cubes values were 0.93 and 0.91 ( p < 0.001), respectively. Reliability revealed intraexaminer ( p < 0.001) and interexaminer ( p < 0.05) differences between the average means of absolute differences of each test foods. Validity also showed differences between the measurement means of each test food ( p < 0.001). Conclusions Intra‐ and interexaminer reproducibility of the test food based on fuchsin beads for evaluation of masticatory performance were good and excellent, respectively; however, the reliability and validity were low, because fuchsin beads do not measure the grinding capacity of masticatory function as silicone cubes do; instead, this test food describes the crushing potential of teeth. Thus, the two kinds of test foods evaluate different properties of masticatory capacity, confirming fushsin beads as a useful tool for this purpose.

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