No, if used properly: Mouthguards should be kept clean and teeth should be brushed prior to inserting. If you have food debris and/or bacteria accumulated on your teeth when you insert the mouth guard then yes, it could trap the stuff there and increase risk of decay. If you care for your teeth and mouth guard properly then no, it will not increase your risk.
Answered 10/24/2013
4.8k views
no: No, although anything that gives bacteria an area to grow can increase the cavity risk. If your teeth are clean and the mouthguard is kept clean there should be no increase in cavities. When oral hygiene is less than perfect you may have an increased risk with mouthguard use.
Answered 6/19/2015
4.8k views
No: Not properly brushing and flossing prior to wear the mouthguards can contribute to your cavities.
Answered 3/9/2014
4.4k views
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