Soviet Medical Encyclopedia

Bicuspid

Dentistry, Anatomy

Also known as: Bicuspidalis, Bicuspid Tooth, Bicuspid Valve

Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.

Summary

This article defines the term 'bicuspid' as used in 1930s Soviet medicine, covering both the two-cusped premolar teeth and the bicuspid valve of the heart.

Encyclopedia entry (1928–1936)

BICUSPID, or bicuspidalis (from Latin bis- twice and cuspis- point, cusp), two-cusped, a term for designating 1) the so-called small, or anterior molars, located in pairs symmetrically on both jaws, due to their crowns having two cusps (dentes praemolares s. bicuspidati); 2) the bicuspid valve in the left venous opening of the heart, between the atrium and the ventricle (valvula bicuspidalis s. mitralis); Vesalius compared it with the mitre of Catholic bishops.

Bicuspid: figure 1 from the 1928–1936 encyclopedia article
Bicuspid: figure 2 from the 1928–1936 encyclopedia article
Bicuspid: figure 3 from the 1928–1936 encyclopedia article

i

II

Figure 1. I and II-1st and 2nd small molars of the upper and lower jaws. Figure 2. a and b-1st upper small molar (a-frontal section, b-sagittal); c-2nd upper small molar (frontal section).

Mentioned in

Cite this page

“Bicuspid.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/bicuspid/