Root canal treatment get a bad wrap. But don’t believe the rumors; the dreaded root canal isn’t dreadful at all! Root canal treatment is needed when either decay or an injury infects the inner tooth (the pulp). In the earliest stages of infection, you may not feel any pain at all. But when it progresses, you could have a toothache or a dental abscess might form. Root canal treatment removes the infected pulp and allows the body to heal the infection. Thanks to automated rotary instruments, this process is faster, more comfortable and, in many cases, more thorough than previous root canal treatment.