Journal of Dental Research, Vol 64, 1257-1260, Copyright © 1985 by International & American Associations for Dental Research Online Journals
The reliability of the iodide permeability test applied to the natural dentition
M. Tavares, P. F. DePaola, S. J. Van Houte and J. E. Alman
The purpose of this study was to assess the reliability of the iodide
permeability test when applied to the human dentition. Twenty-two subjects
were seen once a week for three weeks. At each visit, consecutive iodide
permeability measurements were obtained: four from the right central
incisor and four from the left. Results of these trials were examined for
the degree of variability from one replication to another within the same
day, as well as for the variability from one week to the next. Within-day
and between-week reliability of the test results was assessed by two
indices: the Hoyt Index, which estimates the reliability of the average of
the four replicate measurements per tooth, and the Intraclass correlation,
which estimates the reliability of a single measurement. The results
indicate that the iodide permeability test produces sufficiently replicable
measurements for use in future clinical studies.
