"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to ...

Common signs of a cavity include tooth discoloration, holes, and pain or sensitivity. A cavity is tooth decay, often caused by eating sugary foods and drinks or failing to keep your teeth clean. To ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more. Using toothpaste made with fluoride is the key to ...

Tooth decay can appear differently depending on the stage of severity. You may experience more symptoms, including pain and swollen lymph nodes, at later stages. Tooth decay is damage that occurs to ...