(来学网)根充恰填时根管内充填物应距根尖端
  • A.
    (来学网)0.1~0.2mm
  • B.
    (来学网)0.3~0.4mm
  • C.
    (来学网)0.5~2.0mm
  • D.
    (来学网)1.1~1.5mm
  • E.
    (来学网)1.6~2.0mm
牙体牙髓病学