I’ve had composite veneers for about 5 months now and haven’t had any issues with it until recently. A couple of days ago I started having a bad taste and smell from my mouth even though I’ve been keeping a really good oral hygiene by brushing my teeth twice a day, flossing twice a day, and using mouthwash once or twice a day since I’ve had them. I discovered yesterday that I have a tooth decay on my back tooth but I’ve had cavities on my back tooth only before but didn’t have that taste.