An Attempt at Replication of Human Lingual Papillae Using a Replica Method with Epoxy Resin

Murayama, Toshiaki; Kobayashi, Kan

doi:10.1016/s1349-0079(07)80008-9

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Therefore, in the present study, an impression of the mucosal surface was obtained and the roughness value of the negative replica surface determined. Murayama and Kobayashi 20 reported that bundles of fine slender protrusions of filiform papillae and taste pores of fungiform papillae were successfully reproduced by using a low viscous silicone impression material. Therefore, such a method of taking an impression of the tongue mucosa was considered to precisely reproduce and was applied in the present study to evaluate the degree of atrophy of the lingual papillae in elderly subjects.…”

Section: Discussionmentioning

confidence: 99%

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New method for determining surface roughness of tongue

et al. 2011

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Objective: The degree of atrophy of the lingual papillae in elderly individuals was evaluated using a quantitative method. Subjects and methods: One hundred and eighty-two subjects living in nursing homes and 20 healthy adults as controls were studied. To express the degree of atrophy of the lingual papillae quantitatively, lingual surface roughness was determined by taking an impression with silicone dental material. Based on the impressions obtained from the elderly subjects, they were classified by three expert dentists into three groups: Normal, Smooth and Rough. The same determinations were also performed in the 20 healthy controls and compared with 38 of the elderly subjects who had agreement from all of the experts and without the presence of fissures (Normal, n = 6; Smooth, n = 12; Rough, n = 20). Results: The roughness average value for the controls was 65.0 lm, while that for the elderly subjects in the Normal, Smooth and Rough groups was 73.9 lm, 42.2 lm and 94.1 lm, respectively, which were significantly different. Conclusion:The present results indicate that the present technique of obtaining an impression of the tongue surface is simple and reliable for routine evaluation and quantification of the degree of atrophy as well as morphology of the lingual papillae.

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Section: Discussionmentioning

confidence: 99%

“…The staff of the nursing home who co-operated in this study are also gratefully appreciated. This study was supported, in part, by a Health Sciences Research grant (Comprehensive Research on Aging and Health, [19][20][21] from the Ministry of Health, Labour and Welfare of Japan.…”

Section: Acknowledgementsmentioning

confidence: 99%

New method for determining surface roughness of tongue

et al. 2011

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Topographic study of human tongue in relation to oral tribology

2019

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Association between texture sensation in tongue-hard palate and morphometric characteristics of lingual papillae: A pilot study

Ito

Endo

Tanaka

et al. 2017

Nihon gaku koukukinou gakkai zasshi

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Atrophy and infection of the tongue mucosa contribute to dysgeusia resulting from changes in lingual papillae. However, influences of the changes of lingual papillae on oral mechanoreceptive sensation is unclear.Previous studies have suggested that filiform papillae function as a unit of the mechanoreceptive system and play an important role in somatosensation. We hypothesized that lingual papillae including filiform papillae participate in intraoral texture sensation. The aim of present study was to investigate the relationship between morphometric characteristics of lingual papillae and the texture sensation in tongue-hard palate. Sensory evaluation was performed in 10 healthy participants to evaluate the sensitivity of the tongue-hard palate to granularity. The sample food was an aqueous suspension containing crystalline cellulose, with an average particle diameter of 50 μm, and a concentration of 0 to 6.4 wt%. The participants were divided into high-or low-sensitivity groups (n=6 vs. 4) by evaluating the sensitivity to the granularity of the suspension. To assess the quantitative and morphometric parameters of lingual papillae, the surface roughness defined by JIS was measured by using X-ray micro-CT for image analysis of the surface configurations, which were recorded by silicone rubber impressions taken from the anterior region of the tongue. A concentration of the sample for determining the granular sensitivity threshold ranged from 0.4 to 3.2 wt%. Comparison of the high-and low-sensitivity groups revealed that the root mean square deviation (Rq) and arithmetical mean deviation (Ra) were significantly larger in the high-sensitivity group. In contrast, the lowest valley (Rv) was significantly larger in the low-sensitivity group. These results suggest that the morphometric characteristics of lingual papillae, evaluated in terms of surface roughness, may play a role in intraoral texture sensation.

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An Attempt at Replication of Human Lingual Papillae Using a Replica Method with Epoxy Resin

Cited by 3 publications

References 8 publications

New method for determining surface roughness of tongue

New method for determining surface roughness of tongue

Topographic study of human tongue in relation to oral tribology

Association between texture sensation in tongue-hard palate and morphometric characteristics of lingual papillae: A pilot study

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