I was sent to Dr todd by my dentist with a cracked lower 1st molar in July of 2011. My symptoms were sharp pain occasionally when biting on the tooth , and sensitivity to cold . I had NO spontaneous pain, NO abcess , and NO infection. He took a CT scan,and told me I needed a root canal because the crack went into the pulp chamber .Naive as i was because i trusted doctors to do no harm, I submitted to the procedure.The next day i had a migraine headache , which lasted a full 10 days , and had pain in my jaw that eventually went away . But it was only temporary . 6 months later I developed pain in my jaw below the tooth which lasted 2 years until i had the tooth extracted . An infection was found underneath the tooth. Please be for warned that cracked teeth , along with many other tooth conditions are fixable WITHOUT root canal . They call it root canal therapy , but what they are doing is KILLING your potentially vital nerve, which you and the tooth NEED. They CANNOT sterilize the tooth thru their procedure , because its impossible to do so .Please google dangers of root canal yourself. Dr Todd is a criminal , plain and simple . He performs surgery when it is unnecessary , and the surgery inevitably FAILS.