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1 Pulp cavity of tooth. Cavitas dentis (pulparis). Cavity in the dentin. Towards the root, it becomes continuous with the root canal. A

2 Pulp chamber in the crown. Cavitas coronae. Crown portion of the pulp cavity. A

3 Root canal of tooth. Canalis radicis dentis. Canal between the pulp cavity and the apical foramen. A

4 Apical foramen of root of tooth. Foramen apicis radicis dentalis. The opening of the root canal at the apex of the root. A

5 Pulp of tooth. Pulpa dentis. Contents of the pulp cavity consisting of loose, finely fibered connective tissue, blood vessels and nerves.

6 Crown pulp. Pulpa coronalis. Pulp within the crown portion of the pulp cavity.

7 Root pulp. Pulpa radicularis. Pulp within the root canal portion of the pulp cavity.

8 Dental papilla. Papilla dentis. A mass of mesenchyme present in the bell stage of tooth development. B

9 Dentine. Dentinum [[substantia eburnea]]. Predominant mass of a tooth consisting of inorganic and organic material (especially col-lagenous fibers). A C

10 Enamel. Enamelum [[substantia adamantina]]. The extremely hard substance surrounding the crown of the tooth like a mantle. A C

11 GOMPHOSIS. Type of fibrous joint in which a conical process, e.g., a tooth, is inserted into a socket, e.g., alveolus of the jaw (dentoalveolar articulation).

12 Periodontium. Tissues that invest and support the tooth within the alveolus. It consists of the following parts: A

13 Periodontium protectoris [gingiva]. The outer part of the periodontium with the external border epithelium. A

14 Periodontium insertionis. Portion ofthe peri-odonium touching the tooth. It consists of the inner border epithelium and the periodontal ligament. A

15 Periodontal ligament. Desmodontium. All connective tissue fibers which are anchored in the cementum and, with their vessels and nerves, extend partly into the gum and partly into the alveolar wall. A

16 Cementum. Substance similar to bone. It surrounds the tooth from the enamel border to the apex of the root and receives the fibers of the periodontal ligament. A

17 Alveolar bone. Os alveolare. Bony wall of the alveolus. A

18 Superior dental arch. Arcus dentalis superior. Curved row of teeth of the maxilla.

19 Inferior dental arch. Arcus dentalis inferior. Curved row of teeth of the mandible.

20 Incisor teeth. Dentes incisivi. Cutting teeth located on both sides ofthe midline at the 1stand 2nd positions of the dental arch. D

21 Canine teeth. Dentes canini. Teeth located at the 3rd position of the dental arch. D

22 Premolar teeth. Dentes premolares. Teeth occupying the 4th and 5th positions of the dental arch. D

23 Molar teeth. Dentes molares. Teeth located at the 6th, 7th and 8th positions of the dental arch. D

24 Wisdom tooth. Dens serotinus [molaris ter-tius]. Tooth located at the 8th position of the dental arch. D

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