| tooth, unerupted | A normal developing tooth which has not yet perforated the oral mucosa or one that fails to erupt in the normal sequence or time interval expected for the type of tooth in a given gender, age, or population group. (12 Dec 1998) |
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| torsion of a tooth | Rotation of a tooth in its socket. (05 Mar 2000) |
| tricuspid tooth | A tooth having a crown with three cusps. (05 Mar 2000) |
| tubercle of tooth | A small elevation on some portions of a crown produced by an extra formation of enamel. Synonym: tuberculum dentis, crown tubercle, tubercle of tooth, tuberculum coronae. (05 Mar 2000) |
| Turner's tooth | Enamel hypoplasia involving a solitary permanent tooth; related to infection in the primary tooth that preceded it or to trauma during odontogenesis. (05 Mar 2000) |
| extrusion of a tooth | Elongation of a tooth; movement of a tooth in an occlusal or incisal direction. (05 Mar 2000) |
| facial surface of tooth | The surface of a tooth that faces the buccal or labial mucosa of vestibule of the mouth; opposite to the lingual surface of tooth. Synonym: facies vestibularis dentis, facies facialis dentis, buccal surface, facial surface of tooth, facies buccalis, facies labialis, labial surface. (05 Mar 2000) |
| unerupted tooth | A tooth prior to emergence; a tooth unable to break out or emerge from the dental alveolar tissues into the oral cavity. (05 Mar 2000) |
| fore tooth | <anatomy> One of the teeth in the forepart of the mouth; an incisor. Source: Websters Dictionary (01 Mar 1998) |
| lingual surface of tooth | The surface of a tooth that faces the tongue; opposite to the facies vestibulum dentis. Synonym: facies lingualis dentis. (05 Mar 2000) |
| lion's tooth | <botany> See Leontodon. Source: Websters Dictionary (01 Mar 1998) |
| Aaron's sign | <clinical sign> In acute appendicitis, a referred pain or feeling of distress in the epigastrium or precordial region on continuous firm pressure over McBurney's point. (05 Mar 2000) |
| Abadie's sign of tabes dorsalis | Insensibility to pressure over the tendo achillis. (05 Mar 2000) |
| Abrahams' sign | <clinical sign> An obsolete sign: Rales and other adventitious sounds, changes in the respiratory murmurs, and increase in the whispered sound can be heard on auscultation over the acromial end of the clavicle some time before they become audible at the apex; heard primarily in pulmonary tuberculosis affecting the apical portion of the lung, a dull-flat note, i.e., one between the normal dullness at the right apex and absolute flatness, heard on percussion in that region, indicating progress from incipient to advanced tuberculosis. (05 Mar 2000) |
| accessory sign | <clinical sign> A finding frequently but not consistently present in a disease. Synonym: assident sign. (05 Mar 2000) |