| 单词 | root canal |
| 释义 | > as lemmasroot canal root canal n. Dentistry (a) the space within the root of a tooth, filled with pulp; (b) = root filling n.; also in similative and figurative contexts. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > substance or parts of teeth > [noun] > pulp-cavity pulp cavity1840 nerve cavity1845 pulp canal1845 root canal1864 pulp chamber1872 1864 Dental Cosmos 151 Every one of experience knows how difficult it is to extirpate the vessels and nerves of the root canals after destroying the pulp. 1923 Dental Rec. 43 682 The first requisite for root-canal filling is the complete sterilisation of the root-canal and tubuli. 1993 Coloradoan (Fort Collins) 4 Aug. a6/2 Many people would prefer undergoing a root canal to such an emotion-wrenching exchange of ideas. 2004 S. Olson Children of God go Bowling vi. 80 This week, they'd pulled the bridge out and had done a root canal on a back molar. < as lemmas |
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