In many cases, damage to your teeth is obvious, but some cracks can be almost impossible to spot even during your dental exam. Even a tiny crack or area of decay may be large enough to allow harmful bacteria to infect the pulp of your tooth. That infection can ultimately cost you your tooth. If you are experiencing a toothache, call Freeman Dental Associates at 781.293.2128 for your appointment for root canal therapy in Hanson, Massachusetts. Our dentist, Dr. Alison Freeman, can use this treatment to remove the infection and preserve your smile.