| rest seat | The portion of a tooth structure or of a restoration in a tooth that is prepared to receive the positive seating of the metallic occlusal, incisal, lingual, or cingulum rest of a removable prosthesis. Synonym: rest seat. (05 Mar 2000) |
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| rest's of Serres | Remnants of dental lamina epithelium entrapped within the gingiva. (05 Mar 2000) |
| rest vertical dimension | The vertical dimension of the face with the jaws in rest relation; decrease in rest vertical dimension may or may not accompany a decrease in occlusal vertical dimension; it may occur without a decrease in occlusal vertical dimension in patients with a preponderant activity of the jaw-closing musculature, as in patients with muscular hypertenseness or in chronic gum chewers; increase in rest vertical dimension may or may not accompany an increase in occlusal vertical dimension; it sometimes occurs after the removal of remaining occlusal contacts, perhaps as a result of the removal of noxious reflex stimuli. (05 Mar 2000) |
| mesonephric rest | Remnants of the wolffian duct in the female genital tract that give rise to cysts; e.g., Gartner's cyst. Synonym: mesonephric rest. (05 Mar 2000) |
| cingulum rest | The rigid part of a removable partial denture supported by a prepared rest area on the cingulum of an anterior tooth or crown. (05 Mar 2000) |
| Walthard's cell rest | A nest of epithelial cells occurring in the peritoneum of the uterine tubes or ovary; when neoplastic, possibly comprising one of the components of the Brenner tumour. (05 Mar 2000) |
| wolffian rest | Remnants of the wolffian duct in the female genital tract that give rise to cysts; e.g., Gartner's cyst. Synonym: mesonephric rest. (05 Mar 2000) |
| precision rest | A rest consisting of closely interlocking parts. (05 Mar 2000) |
| incisal rest | The portion of a removable partial denture supported by an incisal edge. (05 Mar 2000) |
| interocclusal rest space | The vertical distance between the opposing occlusal surfaces, assuming rest relation unless otherwise designated. Synonym: interocclusal rest space. Synonym: freeway space. (05 Mar 2000) |
| occlusal rest | A rigid extension of a removable partial denture onto the occlusal surface of a posterior tooth for support of the prosthesis. (05 Mar 2000) |
| occlusal rest bar | A minor connector used to attach an occlusal rest to a major part of a removable partial denture. (05 Mar 2000) |
| knife-rest crystal | A crystal of ammoniomagnesium phosphate found in alkaline urine. (05 Mar 2000) |
| lingual rest | A metallic extension onto the lingual surface of a tooth to provide support or indirect retention for a removable partial denture. (05 Mar 2000) |
| anatomical position | The erect position of the body with the face directed forward (skull aligned in orbitomeatal or Frankfort plane); the arms at the side and the palms of the hands directed forward; the terms posterior, anterior, lateral, medial, etc., are applied to the parts as they stand related to each other and to the axis of the body when in this position. (05 Mar 2000) |