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.
- primary c. c. that has no cementocytes; may cover the entire root of the tooth, but often is missing on the apical third of the root.
- secondary c. c. that forms on the root surface after eruption; it contains cementocytes.

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ce·men·tum si-'ment-əm n a specialized external bony layer covering the dentin of the part of a tooth normally within the gum called also cement compare DENTIN, ENAMEL

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n.
a thin layer of hard tissue on the surface of the root of a tooth. It attaches the fibres of the periodontal membrane to the tooth.

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ce·men·tum (sə-menґtəm) [L. caementum rough stone] [TA] the bonelike, rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal; it also serves as an attachment structure for the periodontal ligament, thus assisting in tooth support. Called also substantia ossea dentis.

Cementum covering the anatomical root, thickening toward the apical region, in a ground longitudinal section of a tooth. The dental pulp has been lost in preparation.


Medical dictionary. 2011.

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 — /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] * * * ▪ tooth also called  Cement,         in anatomy, thin layer of bonelike… …   Universalium

  • 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 — 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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