Hi Ben: I reread my post and realized it sounded like I was criticizing you, it wasnt intended that way but I was rushing out the door.

I apologize if it came out that way.

If you are seeing this brown when you get into dentin , often it is from the laser not having a high enough water spray. This can be caused because the water % isnt high enough on the setting on the laser.

The suction being to close to the laser tip is a big big issue as with the scope and the monitor my assistant can see when she is too close as the water goes up the suction and the laser beam hits the tooth…….it chars the dentin honestly. In addition its sore!!

If you have a Hoya Con bio laser you sometimes find that this will happen if the tip isnt quite tightened enough in the end of the unit or if you have a tiny fluff of lint or something in the portal for the water inside the laser (that can be cleaned out with a small endodontic file).

In closing one further thing is that if you create a very narrow trough then the laser will cut dentin without water spray to rehydrate it (not acclerate it !! GRIN) and often the laser will then stall out , it hurts and chars the dentin. The color is amber, similar to caries in nature.

Check that out , welcome to the forum and hope that there is some useful information on it.

Glenn