Why Does My Dental Crown Smell?

Why Does My Dental Crown Smell?

Dental crowns are a great solution for replacing missing teeth. In fact, according to the American Academy of Implant Dentistry, approximately 15 million people in the U.S. have a crown or bridge replacement. But when a dental crown seems to be causing an odor, it’s a red flag that something is askew. And while this smelly topic might seem embarrassing to discuss or take care of, it need to be addressed as soon as possible.


What causes a smelly crown? An odor originating from your crown is usually a sign that there is bacteria growth or an infection related to your crown. This bacteria can spring up due to a failed root canal or a crown that doesn’t fit properly whether it is loose, cracked or there is a gap between adjacent teeth. Whenever your crown is not perfectly fitted, there are spaces and gaps that are the perfect place for food debris to get lodged and wreak havoc.

A quality dentist will do their best to make sure your crown fits with complete precision from the beginning. They will prepare your teeth by shaving it down, giving the dental lab exact measurements for your crown and then attaching it properly.

Another possibility is that your crown was placed properly initially but if you have had it for a considerable number of years, it could be coming loose simply from wear and tear. The cement can wear off and bacteria can swoop into its place.

And it is possible to develop a cavity under your crown. Any time there is natural tooth material, there is a possibility of cavity. You can prevent this with consistent oral care including brushing and flossing.


If you notice an odor, come in and see us. We will asses the cause of the infection and accompanying odor and determine your treatment options. Often times the solution is for the crown to be redone. Doing this promptly can help save as much of your natural tooth structure as possible. If the infection is ignored, it can spread down into the root of the tooth and at that point an extraction may be the only option.

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