I’m getting crowns on one of my front teeth. I had whitened my teeth a few years ago and I’d really like to touch them up to get them back to where they were before I get this dental crown done. I asked my dentist about it and he didn’t have any advice for me. What I kind of need to know is how many weeks I need to whiten and for how long each day before I’m ready to get the crown.

Barbara

Dear Barbara,

I can give you general principles, but not exact amounts. This is because I can’t know how white your teeth are now, nor how white you want them to get. That being said, the general idea is that the longer you wear your teeth whitening trays, the faster they will whiten.

The fastest way to bleach your teeth will be to wear the trays all night. If you can tolerate that, then that would be my recommendation. If that is too challenging for you, then just wear them during the day for as long as you can tolerate them.

The one hard and fast rule I can tell you is that it will be best to wait two weeks after you have finished whitening before you get your dental crown made. This is because the whitening gel will continue to whiten for up to two weeks after you stop.

Because this is a front tooth, make sure that your dentist provides an all-porcelain crown for you instead of a porcelain fused to metal crown. Otherwise it won’t look as natural. Plus, metal based crowns eventually develop a gray line at the gumline.

I am a bit concerned that your dentist could not give you this information. It is all pretty basic. A dental crown on a front tooth is a tricky procedure. If he can’t handle teeth whitening, then I worry that he won’t be skilled enough to give you a beautiful result on your crown.

This blog is brought to you by a friendly Phoenix Dentist Dr. Hillary Peck.