| 释义 |
root canaln.（名词）- A pulp-filled channel in a root of a tooth.牙根管，齿根管：充满牙髓的牙齿根部的管道
- A treatment in which diseased tissue from this part of the tooth is removed and the resulting cavity is filled with an inert material.牙根管填充手术：一种治疗术，把牙根管部的不健全组织除去并在剩下的龋洞中填充一种隋性物质
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