| suction drainage | Closed drainage of a cavity, with a suction apparatus attached to the drainage tube. (05 Mar 2000) |
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| suction ophthalmodynamometer | An ophthalmodynamometer with a suction disk which increases ocular pressure during ophthalmoscopic observation of the retinal artery. (05 Mar 2000) |
| suction plate | In dentistry, a plate held in place by atmospheric pressure. (05 Mar 2000) |
| instrument | A tool or implement. Origin: L. Instrumentum (05 Mar 2000) |
| test handle instrument | A root canal instrument the handle of which is similar to a collet chuck and which can be secured in position on the root canal instrument to adjust its effective length. (05 Mar 2000) |
| Krueger instrument stop | A mechanical device limiting the insertion of a root canal instrument into a canal. (05 Mar 2000) |