| precision | 1. The quality of being sharply defined or stated; one measure of precision is the number of distinguishable alternatives to a measurement. 2. In statistics, the inverse of the variance of a measurement or estimate. 3. Reproducibility of a quantifiable result; an indication of the random error. (05 Mar 2000) |
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| precision attachment | A frictional or mechanically retained unit used in fixed or removable prosthodontics, consisting of closely fitting male and female parts, an attachment that may be rigid in function or may incorporate a movable stress control unit to reduce the torque on the abutment. Synonym: frictional attachment, internal attachment, key attachment, keyway attachment, parallel attachment, slotted attachment. (05 Mar 2000) |
| precision rest | A rest consisting of closely interlocking parts. (05 Mar 2000) |
| denture precision attachment | A precision device used for attaching a fixed or removable partial denture to the crown of an abutment tooth or a restoration. One type is the intracoronal attachment and the other type is the extracoronal attachment. It consists of a female portion within the coronal portion of the crown of an abutment and a fitted male portion attached to the denture proper. (12 Dec 1998) |