My husband got a crown, but it has come off three times.  Our dentist cements it on again, but it then it comes back off a couple of days later.  Is it because we got him a CEREC crown that this is happening?  My dentist said there is nothing else they can do for him.

Jennine- Boston

Jennine,

If a dental crown is bonded on correctly, they don’t fall off. It doesn’t matter what kind of crown it is.  The fact that it is a CEREC crown, makes it less likely that the crown will fall off, because a computer mills those, making them more accurately structured.

The problem likely lies with the shape of the tooth preparation. If the preparation is too tapered, it’s hard to keep the crown on. I guess it is also possible that he is using the wrong kind of bonding agent, but either way his work is grossly incompetent. Get to a different dentist.

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