| transverse palatine ridge | A masticatory vestige on the hard palate; one of several irregular, sometimes branching, crests of soft tissue that radiate from the region of the incisive papillae at their most anterior parts and extend a slight distance backward, crossing the hard palate and reaching laterally for variable distances. Synonym: plica palatina transversa, ruga palatina, transverse palatine ridge. (05 Mar 2000) |
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| transverse ridge | A crest or ridge on the occlusal surface of a tooth formed by the union of two triangular crests. Synonym: transverse crest, transverse ridge. (05 Mar 2000) |
| mesial | <dentistry> Forward or front. For example your cuspid is medial to you bicuspid. The medial surface of your bicuspid is the part of the bicuspid closest to your cuspid. (08 Jan 1998) |
| mesial angle | The angle formed by the meeting of the mesial with the labial (or buccal) or lingual surface of a tooth. (05 Mar 2000) |
| mesial caries | Caries on the tooth surface that is directed toward the median plane of the dental arch. (05 Mar 2000) |
| mesial displacement | Malposition of a tooth mesial to normal, in an anterior direction following the curvature of the dental arch. Synonym: mesial displacement, mesioplacement. (05 Mar 2000) |
| mesial occlusion | Occlusion in which the mandibular teeth articulate with the maxillary teeth in a position anterior to normal. Synonym: anterior occlusion, mesio-occlusion. Synonym: mesioclusion. (05 Mar 2000) |
| mesial surface of tooth | The contact surface of a tooth that is directed toward the median plane of the dental arch; opposite to the facies distalis dentis. Synonym: facies mesialis dentis. (05 Mar 2000) |
| alveolar ridge | That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth. (12 Dec 1998) |
| alveolar ridge augmentation | Preprosthetic surgery involving rib, cartilage, or iliac crest bone grafts, usually autologous, or synthetic implants for rebuilding the alveolar ridge. (12 Dec 1998) |
| apical ectodermal ridge | The layer of surface ectodermal cells at the apex of the embryonic limb bud; considered to exert an inductive influence on the condensation of underlying mesenchyme. (05 Mar 2000) |
| basal ridge | That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth. (12 Dec 1998) |
| buccocervical ridge | A convexity within the cervical third of the buccal surface of molars. (05 Mar 2000) |
| buccogingival ridge | A distinct ridge on the buccal surface of a deciduous molar tooth, approximately 1.5 mm from the crown-root junction. (05 Mar 2000) |
| bulbar ridge | One of two spiral subendocardial thickenings in the embryonic bulbus cordis; when they fuse, they divide the bulbus into the aorta and pulmonary artery. (05 Mar 2000) |