Although tooth trauma is not completely preventable, certain steps can lessen your chances of injury. Prevention tips include the following:

    - Don't chew on hard objects such as ice, hard candy, bones or pens.

    - Don't clench/grind your teeth.

    - If you clench/grind your teeth while sleeping, wear a retainer or other mouth guard.

    - Avoid fights.

    - Always wear a seatbelt; secure children in age-appropriate car seats.

    - Safeguard your home against potential tripping and slipping hazards. Take childproofing measures such as installing safety gates across stairs and padding table edges.

    - Seek education from dental professionals on preventative methods and treatment for tooth trauma.

    - If you or your child plays sports activities, be sure to wear protective mouth gear.

(http://www.yourdentistryguide.com/tooth-injury/)