Abstract
Once subjected to denture wearing, oral mucosa has to withstand mechanical loads of various levels and durations. However, how this load affects oral mucosal sensitivity is unknown. This study investigated the pressure-pain threshold (PPT) of oral mucosa with or without pre-loading. An electric pressure algometer was developed specifically for measuring the PPT of oral mucosa. Measurements of 10 dentulous maxillae showed that the baseline PPT (BPPT) of the palatal site was 4.9- and 3.7-fold greater than that of the labial or buccal sites, respectively. The PPT of the labial site decreased significantly compared with its BPPT after 2 s-100% BPPT and 5 s-100% BPPT pre-loading. The PPT of the palatal site increased after 5 s-50% BPPT and 5 s-80% BPPT and 0.2 s-100% BPPT and 2 s-100% BPPT pre-loading. The PPT of the buccal site did not change after all levels and durations of pre-loadings tested. These results indicated the disproportionate modulation of oral mucosal PPT following various loads, suggesting that oral mucosa possesses region-specific psychophysical tolerance to mechanical stimuli.
| Original language | English |
|---|---|
| Pages (from-to) | 1062-1069 |
| Number of pages | 8 |
| Journal | Journal of Oral Rehabilitation |
| Volume | 30 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2003 |
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All Science Journal Classification (ASJC) codes
- Dentistry(all)
Cite this
Pressure-pain threshold of oral mucosa and its region-specific modulation by pre-loading. / Ogawa, T.; Ogimoto, T.; Sumiyoshi, K.; Koyano, Kiyoshi.
In: Journal of Oral Rehabilitation, Vol. 30, No. 11, 11.2003, p. 1062-1069.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pressure-pain threshold of oral mucosa and its region-specific modulation by pre-loading
AU - Ogawa, T.
AU - Ogimoto, T.
AU - Sumiyoshi, K.
AU - Koyano, Kiyoshi
PY - 2003/11
Y1 - 2003/11
N2 - Once subjected to denture wearing, oral mucosa has to withstand mechanical loads of various levels and durations. However, how this load affects oral mucosal sensitivity is unknown. This study investigated the pressure-pain threshold (PPT) of oral mucosa with or without pre-loading. An electric pressure algometer was developed specifically for measuring the PPT of oral mucosa. Measurements of 10 dentulous maxillae showed that the baseline PPT (BPPT) of the palatal site was 4.9- and 3.7-fold greater than that of the labial or buccal sites, respectively. The PPT of the labial site decreased significantly compared with its BPPT after 2 s-100% BPPT and 5 s-100% BPPT pre-loading. The PPT of the palatal site increased after 5 s-50% BPPT and 5 s-80% BPPT and 0.2 s-100% BPPT and 2 s-100% BPPT pre-loading. The PPT of the buccal site did not change after all levels and durations of pre-loadings tested. These results indicated the disproportionate modulation of oral mucosal PPT following various loads, suggesting that oral mucosa possesses region-specific psychophysical tolerance to mechanical stimuli.
AB - Once subjected to denture wearing, oral mucosa has to withstand mechanical loads of various levels and durations. However, how this load affects oral mucosal sensitivity is unknown. This study investigated the pressure-pain threshold (PPT) of oral mucosa with or without pre-loading. An electric pressure algometer was developed specifically for measuring the PPT of oral mucosa. Measurements of 10 dentulous maxillae showed that the baseline PPT (BPPT) of the palatal site was 4.9- and 3.7-fold greater than that of the labial or buccal sites, respectively. The PPT of the labial site decreased significantly compared with its BPPT after 2 s-100% BPPT and 5 s-100% BPPT pre-loading. The PPT of the palatal site increased after 5 s-50% BPPT and 5 s-80% BPPT and 0.2 s-100% BPPT and 2 s-100% BPPT pre-loading. The PPT of the buccal site did not change after all levels and durations of pre-loadings tested. These results indicated the disproportionate modulation of oral mucosal PPT following various loads, suggesting that oral mucosa possesses region-specific psychophysical tolerance to mechanical stimuli.
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U2 - 10.1046/j.1365-2842.2003.01183.x
DO - 10.1046/j.1365-2842.2003.01183.x
M3 - Article
VL - 30
SP - 1062
EP - 1069
JO - Journal of Oral Rehabilitation
JF - Journal of Oral Rehabilitation
SN - 0305-182X
IS - 11
ER -