Bovine teeth as substitute for human teeth in dental research: a review of literature

Human teeth possess an active cingular zone that serves as the point of origin for specific accessory cusps. The term protostylid or protoconid is used for any additional cusps on the buccal surface of maxillary and mandibular premolars and molars. Their occurrence in maxillary and mandibular deciduous and permanent dentition is discussed in the literature. This article presents a review of literature in relation to formation of the protostylid, and two cases of prominent protostylids are described, one each in the deciduous and permanent dentitions.

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Extracted human teeth and their utility in dental research. Recommendations on proper preservation: A literature review

Dental and Medical Problems ◽

10.17219/dmp/105252 ◽

2019 ◽

Vol 56 (2) ◽

pp. 185-190 ◽

Cited By ~ 3

Author(s):

Agnieszka Nawrocka ◽

Monika Łukomska-Szymańska

Keyword(s):

Literature Review ◽

Human Teeth ◽

Dental Research ◽

Research Recommendations

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Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100072757 ◽

1973 ◽

Vol 31 ◽

pp. 462-463

Author(s):

M. R. Edwards ◽

J. D. Mainwaring

Keyword(s):

Yellowstone National Park ◽

National Park ◽

Ultrastructural Localization ◽

Review Of Literature ◽

Cyanidium Caldarium ◽

Taxonomic Rank ◽

Thin Sections ◽

Standard Methods ◽

Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

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Human Enamel Replication

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100090889 ◽

1976 ◽

Vol 34 ◽

pp. 180-181

Author(s):

Norman L. Dockum ◽

John G. Dockum

Keyword(s):

Organic Matrix ◽

Human Teeth ◽

Human Enamel ◽

Straight Line ◽

Ultrastructural Characteristics

Ultrastructural characteristics of fractured human enamel and acid-etched enamel were compared using acetate replicas shadowed with platinum and palladium. Shadowed replications of acid-etched surfaces were also obtained by the same method.Enamel from human teeth has a rod structure within which there are crystals of hydroxyapatite contained within a structureless organic matrix composed of keratin. The rods which run at right angles from the dentino-enamel junction are considered to run in a straight line perpendicular to the perimeter of the enamel, however, in many areas these enamel rods overlap, interlacing and intertwining with one another.

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