| occlusion of pupil | The presence of an opaque membrane closing the pupillary area. (05 Mar 2000) |
|---|---|
| occlusion rim | Occluding surfaces built on temporary or permanent denture bases for the purpose of making maxillomandibular relation records and for arranging teeth. Synonym: bite rim, occlusal rim, record rim. (05 Mar 2000) |
| eccentric occlusion | Any occlusion other than centric. (05 Mar 2000) |
| edge-to-edge occlusion | An occlusion in which the anterior teeth of both jaws meet along their incisal edges when the teeth are in centric occlusion. Synonym: edge-to-edge bite, end-to-end bite, end-to-end occlusion. (05 Mar 2000) |
| torsive occlusion | A malposition of a tooth in which it is rotated on its long axis. Synonym: torsive occlusion, torsoclusion. (05 Mar 2000) |
| end-to-end occlusion | An occlusion in which the anterior teeth of both jaws meet along their incisal edges when the teeth are in centric occlusion. Synonym: edge-to-edge bite, end-to-end bite, end-to-end occlusion. (05 Mar 2000) |
| traumatic occlusion | A malocclusion capable of producing injury to the teeth and/or associated structures. Synonym: traumatic occlusion. (05 Mar 2000) |
| traumatogenic occlusion | A malocclusion capable of producing injury to the teeth and/or associated structures. Synonym: traumatic occlusion. (05 Mar 2000) |
| labial occlusion | Malposition of a tooth in a labial direction, the occlusion as seen from the labial side of the arches. (05 Mar 2000) |
| lateral occlusion | Malposition of a tooth or an entire dental arch in a direction away from the midline. (05 Mar 2000) |
| functional occlusion | Any tooth contacts made within the functional range of the opposing teeth surfaces, occlusion which occurs during function. (05 Mar 2000) |
| line of occlusion | The alignment of the occluding surfaces of the teeth in the horizontal plane. See: occlusal plane. (05 Mar 2000) |
| lingual occlusion | Interdigitation of the teeth as seen from the internal or lingual aspect. See: linguoclusion. (05 Mar 2000) |
| Abbe test plate | <equipment> A long, wedge-shaped coverslip about 0.20 mm thick at one end and 0.10 to 0.12 mm at the other end coated chemically with a silver film on which are ruled horizontal lines. at each variation in thickness of 0.01 mm there are vertical lines. By means of oblique illumination and by focusing on different portions of the plate, it is possible to determine the optimum coverslip thickness for any objective and also, for microscopes with drawtubes, the tube length for best objective performance. The approximate freedom from spherical and chromatic aberrations can also be estimated. Small isolated bits of silver near the edges of the lines form good objects for the star test (05 Aug 1998) |
| acetone test | A test for ketonuria; the suspected urine is shaken up with a few drops of sodium nitroprusside, and strong ammonia water is then gently poured over the mixture; if acetone is present, a magenta ring forms at the line of contact; tablets containing sodium nitroprusside and alkali are now more commonly used. (05 Mar 2000) |