The laser root canal procedure is explained step by step on this page, but here are some additional details you should know.
The laser uses sound waves and light energy, which creates something like a tsunami effect in the tooth. This brings nearly all the bacteria, decay and debris up and out of the tooth. The debris that comes up when working on your tooth is actually visible.
Using different solutions, each canal is irrigated (sometimes one tooth can have anywhere from 1-5 canals) for up to a minute per canal, before closing it. In cases where there’s a lot of bacteria present, a medication called calcium hydroxide can be used to allow the bacteria to keep draining from the tooth and further sterilize the area before it is sealed up.
Honestly, sometimes all of this is not possible to do in just one visit. If best aseptic result isn’t possible, it might take more than a single visit.
As far as filling and sealing the tooth goes, Moonlight Beach Dental uses a bioceramic sealer and gutta-percha that doesn’t have barium in it. Since there is no barium in the materials, it eliminates the possibility of reactivity or allergies to this heavy metal.
With a pH of 2 or 3, infections are acidic, and that’s what makes a hole in the bone. What you want is root canal materials with a higher pH, to help kill any remaining anaerobic bacteria and to help the body heal with a more neutral pH. The bioceramic sealer that the gutta-percha gets coated into has a PH of 12, which neutralizes the whole area and helps promote bone growth.