Yes. A small crack or chip can sometimes grow larger with continued chewing. Bacteria may also enter exposed areas of the tooth. Having the damage checked early can help prevent further problems and improve the chances of saving the tooth. 

 Small tooth fragments usually pass through the digestive system without causing problems. However, a sharp fragment may cause injury. If you experience choking, difficulty breathing, trouble swallowing, or chest pain, seek urgent medical attention. You should also arrange a dental examination for the damaged tooth. 

Yes. Frequent teeth grinding or clenching can gradually weaken enamel and place extra pressure on teeth, especially those with large fillings. Your dentist can check for signs of grinding and may recommend a custom night guard to help protect your teeth from further damage.

 No. Unlike bones, broken tooth enamel cannot grow back or repair itself. Very small chips may not always need extensive treatment, but larger fractures usually require dental care. A dentist can assess the damage and recommend whether bonding, a filling, or a crown is appropriate. 

 Avoid chewing on the damaged side and choose soft foods that don't require much pressure. Keep the area clean with gentle brushing. If a sharp edge irritates your tongue or cheek, temporary dental wax may help cover it until your dentist examines the tooth.