So, your dentist tells you that you need a crown.
How do you know if he/she is full of it and when
they are telling you the truth?
Here's the #1 reason that teeth, in my office, need crowns.
The ratio between tooth and filling.
A filling is like a patch in a pair of pants.
You rip a little hole and you place a patch.
You rip 14 holes and you throw the pants away.
Why?
Because the amount of patch material would be greater then
the amount of original pant material and that just wouldn't work.
It's the same with teeth.
When that amount of filling material would be greater
then the original tooth material, you know its time.
This tooth is a perfect example.
It used to have 4 corners. The patient came in because he
broke one of the corners off.
When the 4 corners were in place the ratios were okay.
But not that there are only 3 corners the ratios are off.
There is now too much filling and not enough tooth to support it.
This tooth now needs a crown.
Hopefully your dentist uses a digital camera and can show
you images like this so that you can see what is going on.
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