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Measurement in vivo of Masticatory Mucosal Thickness with 20 MHz B-Mode Ultrasonic Diagnostic Equipment

The 3rd Department of Prosthodontics, Faculty of Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113 Tokyo, Japan

K. Kobayashi

The 3rd Department of Prosthodontics, Faculty of Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113 Tokyo, Japan

M. Nagao

The 3rd Department of Prosthodontics, Faculty of Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113 Tokyo, Japan

Analysis of the movement of the denture foundation under function is very important for construction of a denture. For this analysis, the thickness of the masticatory mucosa gives the required quantitative information. The thickness measurements were taken from 21 oral sites in 100 edentulous patients, by means of 20 MHz B-mode ultrasonic equipment.

The average thickness of the masticatory mucosa ranged from 1. 92 mm to 2.38 mm at the upper edentulous ridge and from 1.45 mm to 1. 58 mm at the lower edentulous ridge. The center of the palate had the thinnest mucosa and the lateral area of the palate had the thickest among all the measuring points. Contrary to what is often believed, a decrease in mucosal thickness with age was not observed by one-way analysis of variance. Furthermore, as the degree of ridge reduction increased, a decrease in the mucosal thickness was found by one-way analysis of variance at only two of the 14 measuring sites on the ridges. At four of the 21 measuring sites, male patients had significantly thicker mucosa than did females, and the correlation coefficients of the thickness of mucosa between right and left sides in the palate were higher than those in residual ridges.

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Journal of Dental Research, Vol. 68, No. 2, 95-100 (1989)
DOI: 10.1177/00220345890680021501


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Uchida, H. Articles by Nagao, M. Search for Related Content PubMed PubMed Citation Articles by Uchida, H. Articles by Nagao, M. Pubmed/NCBI databases Medline Plus Health Information Ultrasound Social Bookmarking                         What's this?