Journal of Prosthodontic Research
Online ISSN : 1883-9207
Print ISSN : 1883-1958
ISSN-L : 1883-1958
Original Articles
Influence of an experimental palatal plate on thermal perception
Masako Furuya-YoshinakaMasaki YoshinakaFumihiko IsogaiYoshinobu Maeda
Author information
JOURNAL OPEN ACCESS

2009 Volume 53 Issue 4 Pages 193-196

Details
Abstract
Purpose: This study aimed to examine how coverage of the hard palate by an experimental palatal plate influenced thermosensation.
Methods: A total of 20 young adult volunteers were recruited from Osaka University Graduate School of Dentistry. An experimental palatal plate, 1.5 mm in thickness, was made for each subject from acrylic resin. The stimulus water were either warmed to 40, 42, 44, 46, or 48 °C or cooled to 30, 26, 22, 18, or 14 °C in a constant-temperature water bath, and the control water were maintained at 37 °C. Subjects were instructed to retain the control water in their mouths for 5 s, then to spit it out and to repeat with the stimulus water. They then rated the intensity of stimulation of warmth or cold compared to the control water by the magnitude estimation method. Each stimulus was administered three times in random order. Two experimental conditions were set: with and without the experimental palatal plate.
Results: Perceived thermal intensity was measured as the slope of the regression line for each condition (with or without the experimental palatal plate, cold or warmth). There was a significant difference between with and without the experimental palatal plate; the regression slope with the plate was shallower than that without the plate (warmth perception with plate = 0.55 ± 0.21 vs. warmth perception without plate = 0.70 ± 0.23, P < 0.05; cold perception with plate = -0.33 ± 0.14 vs. cold perception without plate = -0.39 ± 0.11, P < 0.05).
Conclusion: The findings suggested that a denture covering the hard palate obstructs thermal perception.
Content from these authors

This article cannot obtain the latest cited-by information.

© 2009 Japan Prosthodontic Society.

This is an open-access article distributed under the terms of Creative Commons Attribution License 4.0 (CCBY 4.0), which allows users to distribute and copy the material in any format so long as attribution is given to the Japan Prosthodontic Society.
https://creativecommons.org/licenses/by/4.0/
Previous article
feedback
Top