This study evaluated different variables to determine their role in the appearance of the central and lateral upper jaw papillae. 292 interdental embrasures were examined. Personal variables were: age, smoke, and use of interproximal hygiene devices. The clinical characteristics were: tooth shape, periodontal biotype and papilla appearance. Radiographic measurements were: root to root distance ...

The anterior region of the human tongue ceases to grow by 8-10 years of age and the posterior region at 15-16 years. This study was conducted with 30 adults and 85 children (7-12 year olds) to determine whether the cessation of growth in the anterior tongue coincides with the stabilization of the number and distribution of fungiform papillae (FP) on this region of the tongue. This is important ...

The aim of the present study was to describe the tridimensional morphological characteristics of the lingual papillae and their connective tissue cores (CTCs) in Sprague Dawley rats. Four types of papillae were reported on the dorsal surface. Filiform papillae were distributed on the tongue surface and after epithelial maceration a conic and multifilamentary shape of the CTCs was revealed. Fung...

The purpose of this study was to investigate the changes in taste sensitivity during aging using four standard taste solutions. The subjects consisted of 50 normal volunteers who were divided into two groups. The younger age group was composed of 27 individuals between the ages of 20 and 30 years. The older group consisted of 23 individuals between the ages of 50 and 77 years. In order to evalu...

The dorsal lingual surfaces of two adult Japanese marten (Martes melampus) were examined by scanning electron microscopy (SEM). Filiform, fungiform, vallate and foliate papillae were observed. A small filiform papilla on the apical surface of the tongue had several pointed processes. A small filiform papilla contained the connective tissue core consisting of several small processes. A large fil...

The number of basic taste qualities registered by single human fungiform papillae is correlated with the number of taste buds borne on these papillae. Multiple sensitivity was demonstrated both in single fungiform papillae and in single taste buds, with response to all four of the basic taste qualities occuring in a single taste bud.

Brain-derived neurotrophic factor (BDNF) and neurotrophin-4 (NT4) are essential for the survival of geniculate ganglion neurons, which provide the sensory afferents for taste buds of the anterior tongue and palate. To determine how these target-derived growth factors regulate gustatory development, the taste system was examined in transgenic mice that overexpress BDNF (BDNF-OE) or NT4 (NT4-OE) ...

We describe the tadpole of Sphaenorhynchus caramaschii. It differs from tadpoles of other species of Sphaenorhynchus in having a short spiracle, submarginal papillae, and alternating short and large marginal papillae in the oral disc. Some larval characteristics, like morphology and position of the nostrils, length of the spiracle, and size of the marginal papillae on the oral disc are discusse...

Gustation in sharks is not well understood, especially within species that ingest food items using suction. This study examines the morphological and immunohistochemical characterisation of taste papillae and oral denticles in the oropharynx of the brown-banded bamboo shark Chiloscyllium punctatum and compares their distribution during development. Taste papillae of C. punctatum are located thr...

Abstract The objective of this study was to evaluate the effect inclusion increasing levels hempseed meal (HSM) on morphology rumen papillae and volatile fatty acids production in intact male goats. Boer x Spanish goats (n = 36), 0 to1 months age bodyweight 44.1 ± 3.8 kg, were randomly assigned one four experimental diets 9 goats/diet): 0% (control), 0%, 20%, 30% HSM included an as-fed basis fe...