Most people probably may have some experiences of teeth grinding and clenching from time to time. Grinding teeth (Bruxism) occasionally may not cause any damage of teeth. But if it's on a regular basis, it may rise some issues such as wearing teeth down, chipping, fracturing, loosening or loss of teeth. It also can affect jaws, cause or worsen TMD/TMJ (Joint's problem).
Most of teeth grinding happens during sleep and the causes could be abnormal bite, missing or crooked teeth, stress, anxiety and sleep disorder such as sleep apnea.
A mouth guard at night (occlusal splint) can be provided to protect teeth from grinding. For severely worn teeth and loss of bite height, rebuilding up teeth with bonding or crowns is a good options.