| triangularity of the teeth | A well-marked indication of advancing age in the horse, shown by increasing depth from front to rear in the occlusal surfaces of the incisor teeth; at nine years, when the marks fail, this sign is of use in determining the age of the animal. (05 Mar 2000) |
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| tube teeth | Artificial teeth constructed with a vertical, cylindric aperture extending from the centre of the base up into the body of the tooth into which a pin may be placed or cast for the attachment of the tooth to a denture base. (05 Mar 2000) |
| zero degree teeth | Prosthetic teeth having no cusp angles in relation to the horizontal. (05 Mar 2000) |
| universal numerical notation for teeth | <dentistry> The universal numerical notation is an alternative numerical notation for teeth. In this notation, your upper right third molar is designated as tooth#1, and then you number each tooth sequentially moving right to left and down across your mouth. (08 Jan 1998) |
| flared teeth | <dentistry> A term used to indicate the position of the teeth. The upper teeth are flared lingually (toward the lip). (08 Jan 1998) |
| fluoridated teeth | <dentistry> Teeth exposed to fluorine salts during odontogenesis. (05 Mar 2000) |
| fused teeth | Two teeth united during development by the union of their tooth germs; the teeth may be joined by the enamel of their crowns, by their root dentin, or by both. (12 Dec 1998) |