How do dentist do crowns?

I had a root canal today and go back for a crown in two weeks but I read online that you have to go twice for a crown. The first time for a temporary crown and the second for the permanent crown. I really don't know how it work because I've never had a crown before so if anyone could tell me.

How do dentist do crowns?
EMJ,





At your first appointment the dentist will pick a shade for your crown (assuming it's not going to be yellow gold). They will also take an impression of your tooth to be used later, to make the temporary crown.





You will given freezing, and then they will start the crown preparation. Basically the dentist reduces the size of your tooth to look like a peg. Because you've had a root canal it might be necessary for the dentist to place a post into one of the canals of your tooth for extra support as well as a "build up" to replace older filling material (he may have already did this when he finished the root canal)





Once the tooth has been reduced in size as much as the dentist wants, they will pack something called retraction cord around the tooth to retract your gums away slightly. The reason they do this is so the impression material they are about to use will get down onto your gums and create a good margin for the crown. After the retraction cord sits for a few minutes, they will do what's called a final impression. Different dentists use different materials and trays for this step, but basically they'll put a tray into your mouth with some impression material that will seem like you have a wad of gum in your mouth. You'll bite on that for about 5 minutes or so, then if its satisfactory, they will move onto making your temporary crown, or they may need to retake the impression.





To make the temporary crown they place the material they use, into the mold they took at the beginning of the appointment, then they place it on your newly prepped tooth and let it sit for about 2 mintues until it hardens. They then remove it from the mold, do a bit of fine tuning and voila, a temporary crown. They place some temporary cement into it, cement it in place, and you have an exact replilca of your tooth when you walked into the appointment!





They then send your final impression to the dental labratory to fabricate the crown, and then when you come back 1-2 weeks later you have a beautiful new tooth!





Enough info? :)
Reply:go 2 you-tube, type tooth crown


u'll c the real thing,


DON'T IF SQEEMISH!!!!!!!!!!!!!!