| 释义 | 
		Definition of root canal in English: root canalnoun 1The pulp-filled cavity in the root of a tooth.  Example sentencesExamples -  He or she will then drill into the pulp to reach the root canals.
 -  The root canals are normally an oval shape and may be very fine and difficult to fill.
 -  Afterwards, the tooth is sealed by placing a rubbery filling into the root canal.
 -  Restorative dentistry also includes endodontics (treating the pulps or root canals of teeth) and prosthodontics.
 -  Working against the clock, the drilling continued; the root canals were opened and emptied.
 -  Seven hundred years ago this man would have been suffering from terrible toothache: the pulp cavity was exposed and the infection had passed down the root canal to form an abscess in the jaw.
 
 - 1.1North American  A procedure to replace infected pulp in a root canal with an inert material.
 Example sentencesExamples -  Suddenly you're forced to estimate summer child care expenses and what part of your upcoming root canal isn't covered by insurance.
 -  I would rather have a root canal than do a photo shoot.
 -  Another one of those times is when your back goes out, and another is when you have to have a root canal, and wind up with a $3,000 dentist bill.
 -  You take the guy to the dentist's office at 3 a.m. for a root canal, and he's back on the ice the next night.
 -  I, of course, forgot that I'm on pain medication ‘cause I had a root canal last week.
 -  You don't want to be at the dentist and have the novocaine wear off halfway through a root canal, do you?
 -  Anyway, when I went to the dentist, he told me I needed a total root canal.
 -  Alright… next week I have to make another appointment for a root canal… do you think you could do fine alone again next week?
 -  Done poorly, it is more painful than a root canal without novocaine.
 -  The impact is all the more astonishing because many revolve around such intrinsically ‘exciting’ events as a mother going to the city on the train to have a root canal and taking her young daughter along.
 -  Of course, the security of paying a set premium every month rather than $1, 000 for a root canal right before Christmas is worth something.
 
  
    Definition of root canal in US English: root canalnounrut 1The pulp-filled cavity in the root of a tooth.  Example sentencesExamples -  Afterwards, the tooth is sealed by placing a rubbery filling into the root canal.
 -  He or she will then drill into the pulp to reach the root canals.
 -  Restorative dentistry also includes endodontics (treating the pulps or root canals of teeth) and prosthodontics.
 -  Seven hundred years ago this man would have been suffering from terrible toothache: the pulp cavity was exposed and the infection had passed down the root canal to form an abscess in the jaw.
 -  Working against the clock, the drilling continued; the root canals were opened and emptied.
 -  The root canals are normally an oval shape and may be very fine and difficult to fill.
 
 - 1.1North American  A procedure to replace infected pulp in a root canal with an inert material.
 Example sentencesExamples -  I would rather have a root canal than do a photo shoot.
 -  The impact is all the more astonishing because many revolve around such intrinsically ‘exciting’ events as a mother going to the city on the train to have a root canal and taking her young daughter along.
 -  You take the guy to the dentist's office at 3 a.m. for a root canal, and he's back on the ice the next night.
 -  Suddenly you're forced to estimate summer child care expenses and what part of your upcoming root canal isn't covered by insurance.
 -  You don't want to be at the dentist and have the novocaine wear off halfway through a root canal, do you?
 -  Another one of those times is when your back goes out, and another is when you have to have a root canal, and wind up with a $3,000 dentist bill.
 -  Of course, the security of paying a set premium every month rather than $1, 000 for a root canal right before Christmas is worth something.
 -  Anyway, when I went to the dentist, he told me I needed a total root canal.
 -  I, of course, forgot that I'm on pain medication ‘cause I had a root canal last week.
 -  Done poorly, it is more painful than a root canal without novocaine.
 -  Alright… next week I have to make another appointment for a root canal… do you think you could do fine alone again next week?
 
  
     |