There has been a lot of controversy surrounding root canal procedure since last century.
I have had many root canals and never had any problems. Since I am about to embark on some major dental work I had my existing root canals explored with latest imaging methods. It turns out several of my root canals dont look very healthy and they cannot be sure what is really going on in there until they open them. According to the dentist at the top notch local hospital these were done poorly and not filled in the entire length of the root canal and it was by sheer luck I never experienced any pain or infection problems. I always believed in "if it aint broke dont try to fix it" and am wondering whether I should tamper with these teeth for purely estethical reasons since they never gave me any problems for more then a decade.
Until recently the only alternative to root canals was pulling out the teeth. But these days there are techniques that seem to guarantee safe root canals
(1) Sterilization--Once the root chamber is cleaned out, it is washed out with ozonated water, which is an effective, biologically safe treatment against bacteria and microbes, as well as an aid to promote healing. Then,a dental laser is used that can sterilize the root interiors much more thoroughly and effectively than any chemical can. The reason is that the interior root structure reflects the sterilizing light into every microscopic nook and cranny in the root chamber, so that nothing can escape it.
(2) Restorative Materials--After the sterilization procedures are finished, the root tips are sealed with Mineral Trioxide Aggregate. This is a biocompatible, bone-like compound that seals the roots, and the body identifies it as a healthy tooth, so that vital blood, oxygen and lymphatic circulation will continue to the area. The chambers themselves are filled with a tooth-like, calcium-based compound that again, the body identifies as natural--because it is. Natural tooth root calcification continues throughout life, and this is a natural imitation of what eventually happens anyway.