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Vertical section of canine tooth to illustrate the various parts and structures.

Structure of Canine Tooth

Vertical section of canine tooth to illustrate the various parts and structures.

Section of a portion of the dentine and cement from the middle of the root of an incisor tooth. Labels: a, dental tubuli ramifying and terminating, some of them in the interglobular spaces b and c, which somewhat resemble bone lacunae; d, inner layer of the cement with numerous closely set canaliculi; e, outer later of cement; f, lacunae; g, canaliculi.

Dentine and Cement

Section of a portion of the dentine and cement from the middle of the root of an incisor tooth. Labels:…

Part of section of developing tooth of a young rat, showing the mode of deposition of the dentine. Labels: a, outer layer of fully formed dentine; b, uncalcified matrix with one or two nodules of calcareous matter near the calcified parts; c, odontoblasts sending processes into the dentine; d, pulp; e, fusiform or wedge-shape cells found between odontoblasts; f, stellate cells of pulp in fibrous connective tissue. The section is stained in carmine, which colors the uncalcified matrix, but not the calcified part.

Deposition of Dentine

Part of section of developing tooth of a young rat, showing the mode of deposition of the dentine. Labels:…

These placoid scales are found in cartilaginous fishes. They are also called dermal denticles. These scales do not grow in size, more are simply added as the fish grows larger.

Placoid Scales of a Shark

These placoid scales are found in cartilaginous fishes. They are also called dermal denticles. These…

1. Dentition (teeth) of man. 2. Dentition of hyena. 3. Dentition of pig. 4. Dentition of Patagonian cavy (type of rodent). 5. Section of skull of Indian elephant, showing dentition of right side. 6. Crown of upper molar of horse, showing enamal folds. 7. Grinding surface of molar of African elephant, with enamal folds. 8. Single tooth of blue shark. 9. Longitudinal section of human tooth. 1. Incisors (human); C, canines; P, premolars; M, molars. a, enamel; b, dentine; c, cement (crusta petrosa); d, pulp cavity.

Teeth of Man and Several Animal Species

1. Dentition (teeth) of man. 2. Dentition of hyena. 3. Dentition of pig. 4. Dentition of Patagonian…

Structure of the teeth. A tooth consists of 3 structures, the dentine (2), or ivory, the proper dental substance, forming the larger portion; the enamel or adamant (3), a layer covering the crown; and the cement (1), a thin layer on the surface of the fang. A central chamber, the pulp-cavity, occupies the interior, and contains the pulp, a soft, vascular, and sensitive organ, surrounded by a layer of cells, the odonto-blasts, or dentine-forming cells.

Structure of the Teeth

Structure of the teeth. A tooth consists of 3 structures, the dentine (2), or ivory, the proper dental…

"Longitudinal section of a tooth, semi-diagrammatic. PH, pulp cavity; PH', opening of same; ZB, dentine; ZC, cement; ZS, enamel." -Parker, 1900

Tooth Section

"Longitudinal section of a tooth, semi-diagrammatic. PH, pulp cavity; PH', opening of same; ZB, dentine;…

"<em>A</em>, enamel; <em>B</em>, pulp cavity; <em>C</em> dentine; <em>D</em>, cement." &mdash; Blaisedell, 1904

Longitudinal section of a tooth

"A, enamel; B, pulp cavity; C dentine; D, cement." — Blaisedell,…

Section through a premolar tooth of a cat still embedded in its socket. Labels: 1, enamel; 2, dentine; 3, cement; 4, the gum; , the bone of the lower jaw; c, the pulp-cavity.

Premolar Tooth

Section through a premolar tooth of a cat still embedded in its socket. Labels: 1, enamel; 2, dentine;…