cementum

cementum
/si men"teuhm/, n. Dentistry.
the bonelike tissue that forms the outer surface of the root of the tooth.
[1605-15; < L, var. of caementum rough stone; see CEMENT]

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▪ tooth
also called  Cement,  

      in anatomy, thin layer of bonelike material covering the roots and sometimes other parts of the teeth of mammals. Cementum is yellowish and softer than either dentine or enamel. It is made by a layer of cementum-producing cells (cementoblasts) adjacent to the dentine. The fibres of the periodontal membrane, which holds the tooth in its socket, are embedded in the cementum. Deposition of cementum continues throughout the life of the animal, especially in response to stresses. In humans, for example, as the tooth crown wears down, new cementum is deposited on the roots so that the tooth gradually rises higher in the socket and good occlusion (bite) is maintained.

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Universalium. 2010.

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Look at other dictionaries:

  • Cementum — The cementum is the surface layer of the tooth root (B). Rather than being a passive entity like paint on a wall, cementum is a dynamic entity within the periodontium. It is attached to the alveolar bone (C) by the fibers of the periodontal… …   Wikipedia

  • Cementum — vgl. Zement …   Das Wörterbuch medizinischer Fachausdrücke

  • cementum — [sə men′təm] n. [L caementum: see CEMENT] the thin, fairly hard, bony tissue covering the root of a tooth …   English World dictionary

  • cementum — Cement Ce*ment (s[e^]*m[e^]nt or s[e^]m [e^]nt), n. [OF. cement, ciment, F. ciment, fr. L. caementum a rough, unhewn stone, pieces or chips of marble, from which mortar was made, contr. fr. caedimentum, fr. caedere to cut, prob. akin to scindere… …   The Collaborative International Dictionary of English

  • Cementum — Das Zement (Latein: Cementum, seltener: Substantia ossea dentis) ist ein Bestandteil des Zahnes, der dem Dentin im Zahnwurzelbereich aufliegt. Es ist ein Teil des Zahnhalteapparats und besteht zu 65 % aus Mineralien, zu 23 % aus einem organischen …   Deutsch Wikipedia

  • cementum — SYN: cement (1). [L. caementum, rough quarry stone, fr. caedo, to cut] afibrillar c. c. which, with the electron microscope, appears as laminated, electron dense reticular material that sometimes overlies the enamel of the tooth …   Medical dictionary

  • Cementum — cementas statusas T sritis gyvūnų anatomija, gyvūnų morfologija atitikmenys: lot. Cementum ryšiai: platesnis terminas – dantys …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Cementum — cementas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Cementum ryšiai: platesnis terminas – cementoblastinė plokštelė …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Cementum — cementas statusas T sritis histologija, ląstelių chemija, histologinė chemija, audinių kultūra atitikmenys: lot. Cementum ryšiai: platesnis terminas – dantis siauresnis terminas – cemento augimo linija siauresnis terminas – ląstelinis cementas… …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Cementum — cementas statusas T sritis embriologija atitikmenys: lot. Cementum ryšiai: platesnis terminas – cementoblastinė plokštelė …   Medicininės histologijos ir embriologijos vardynas

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