| rest relation | The postural relation of the mandible to the maxillae when the patient is resting comfortably in the upright position and the condyles are in a neutral unstrained position in the glenoid fossa. Synonym: rest jaw relation, unstrained jaw relation. (05 Mar 2000) |
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| 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) |
| 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) |
| physiologic rest position | The usual position of the mandible when the patient is resting comfortably in the upright position and the condyles are in a neutral unstrained position in the glenoid fossae. See: rest relation. Synonym: postural position, postural resting position, rest position. (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) |