| foramen apicis dentis | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
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| ligamentum apicis dentis | A ligament that extends from the apex of the dens of the axis to the anterior margin of the foramen magnum; includes vestiges of notochord. Synonym: ligamentum apicis dentis. (05 Mar 2000) |
| incisura apicis cordis | A slight notch near the apex of the heart where the anterior interventricular sulcus reaches the diaphragmatic surface of the heart. Synonym: incisura apicis cordis. (05 Mar 2000) |
| apex cuspidis dentis | The tip of the peaklike projections from the crown of a tooth. Synonym: apex cuspidis dentis. (05 Mar 2000) |
| apex dentis | The tip of the dens of the axis to which is attached the apical ligament of the dens. Synonym: apex dentis. (05 Mar 2000) |
| apex radicis dentis | The tip of a tooth root, the part farthest from the incisal or occlusal side. Synonym: apex radicis dentis, root apex, root tip. (05 Mar 2000) |
| canalis radicis dentis | The chamber of the dental pulp lying within the root portion of a tooth. Synonym: canalis radicis dentis, marrow canal, pulp canal. (05 Mar 2000) |
| radix dentis | That part of a tooth below the neck, covered by cementum rather than enamel, and attached by the periodontal ligament to the alveolar bone. Synonym: radix dentis, radix, root. (05 Mar 2000) |
| papilla dentis | Mesodermal tissue enclosed in the invaginated portion of the epithelial enamel organ and giving rise to the dentin and pulp. (12 Dec 1998) |
| cavitas dentis | The central hollow of a tooth consisting of the crown cavity and the root canal; it contains the fibrovascular dental pulp and is lined throughout by odontoblasts. Synonym: cavitas dentis, cavity of tooth, cavum dentis. (05 Mar 2000) |
| cavum dentis | The central hollow of a tooth consisting of the crown cavity and the root canal; it contains the fibrovascular dental pulp and is lined throughout by odontoblasts. Synonym: cavitas dentis, cavity of tooth, cavum dentis. (05 Mar 2000) |
| cervix dentis | The slightly constricted part of a tooth, between the crown and the root. Synonym: cervix dentis, cervical margin of tooth, cervical zone of tooth, collum dentis, dental neck. (05 Mar 2000) |
| gubernaculum dentis | A connective tissue band uniting the tooth sac with the gum. (05 Mar 2000) |
| cingulum dentis | A U-or W-shaped ridge at the base of the lingual surface of the crown of the upper incisors and cuspid teeth, the lateral limbs running for a short distance along the linguoproximal line angles, the central portion just above the gingiva. Synonym: cingulum dentis, basal ridge, lingual lobe. (05 Mar 2000) |
| collum dentis | The slightly constricted part of a tooth, between the crown and the root. Synonym: cervix dentis, cervical margin of tooth, cervical zone of tooth, collum dentis, dental neck. (05 Mar 2000) |