Among the most common dental injuries include a cracked, broken or knocked out tooth. If the crack is small or there is a minor chip, schedule an appointment with us for normal business hours. However, if there is a significant crack or even nerve damage, this is something that constitutes an emergency trip to our Chesterfield dentist. The same goes for a tooth that has been completely knocked out. The sooner you address a serious problem, the less extensive the recovery process will be.