People who have known allergies to base metal may want to try a dental crown made of porcelain or gold.
Some metal used in dentistry contains mercury, which has stirred controversy over its safety. Though it is can be toxic, mercury has been used in dentistry for years at what is believed to be safe levels. Talk with your dentist if you are concerned that the metal dental crown you get might contain mercury or that you could be allergic to the metal used to make it.
Another risk for any type of crown is that decay could form inside the tooth causing the crown to loosen and fall out. That’s why it’s important to follow a daily oral health routine that includes brushing and flossing your teeth.