PMID- 15001287
OWN - NLM
STAT- MEDLINE
DCOM- 20040406
LR  - 20061115
IS  - 0300-5712 (Print)
IS  - 0300-5712 (Linking)
VI  - 32
IP  - 3
DP  - 2004 Mar
TI  - Mapping, profiling and clustering of pressure pain threshold (PPT) in edentulous 
      oral mucosa.
PG  - 219-28
AB  - OBJECTIVES: Edentulous oral mucosa involves different tissue types, various 
      innervation and wound healing process. We hypothesized that pressure pain 
      threshold (PPT) of edentulous oral mucosa varies significantly among different 
      regions. The objective of this study is to examine regional differences and 
      correlations of PPT in edentulous oral mucosa. METHODS: Pain threshold (PPT) was 
      measured at 112 sites in 15 edentulous patients using an electric-controlled 
      pressure algometer. PPT mapping was created by the level of PPT, and PPT 
      clustering was undertaken based on the inter-site correlation of PPT. RESULTS: 
      PPT increased from the anterior to posterior alveolus in both maxilla and 
      mandible, but decreased from the anterior palate to the posterior palate. PPT 
      decreased from the ridge crest to the buccal vestibule. The inter-site difference 
      was four fold within the maxilla and 2.4 fold within the mandible. Principal 
      component analysis applied on PPT inter-site correlation matrix revealed that the 
      maxilla and mandible could be differentiated statistically. The maxilla and 
      mandible were divided into three and four clusters, respectively. CONCLUSION: 
      These results demonstrate that different areas of edentulous oral mucosa have 
      different PPT and that the PPT varies proportionally in selected areas, providing 
      useful diagnostic and therapeutic information in removable prosthodontics and a 
      new opportunity for understanding pain underneath the denture.
FAU - Ogawa, T
AU  - Ogawa T
AD  - Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry, 
      Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, P.O. 
      Box 951668, 10833 Le Conte Avenue, B3-088 CHS, Los Angeles, CA 90095-1668, USA. 
      tack@dent.ucla.edu
FAU - Tanaka, M
AU  - Tanaka M
FAU - Ogimoto, T
AU  - Ogimoto T
FAU - Okushi, N
AU  - Okushi N
FAU - Koyano, K
AU  - Koyano K
FAU - Takeuchi, K
AU  - Takeuchi K
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - J Dent
JT  - Journal of dentistry
JID - 0354422
SB  - IM
MH  - Aged
MH  - Aged, 80 and over
MH  - Alveolar Process
MH  - Analysis of Variance
MH  - Cluster Analysis
MH  - Dental Stress Analysis
MH  - Female
MH  - Humans
MH  - Male
MH  - Mandible
MH  - Maxilla
MH  - Middle Aged
MH  - Mouth Mucosa/*innervation/*physiopathology
MH  - *Mouth, Edentulous
MH  - Nociceptors
MH  - Pain Measurement
MH  - *Pain Threshold
MH  - Palate, Hard
MH  - Pressure
MH  - Principal Component Analysis
EDAT- 2004/03/06 05:00
MHDA- 2004/04/07 05:00
CRDT- 2004/03/06 05:00
PHST- 2003/06/17 00:00 [received]
PHST- 2003/10/14 00:00 [revised]
PHST- 2003/11/11 00:00 [accepted]
PHST- 2004/03/06 05:00 [pubmed]
PHST- 2004/04/07 05:00 [medline]
PHST- 2004/03/06 05:00 [entrez]
AID - S0300571203001787 [pii]
AID - 10.1016/j.jdent.2003.11.001 [doi]
PST - ppublish
SO  - J Dent. 2004 Mar;32(3):219-28. doi: 10.1016/j.jdent.2003.11.001.