Hi Dr. Mark, hope this note finds you well. It’s quite amazing what is happening in my mouth. Your calcium solution is acting as a cleaning agent for my plaque encrusted teeth. Even the black gunk I told you about around some of the teeth roots are clearing up. The one tooth that had been pus-y also seems to be clear. so I can plan my visit time. Would you kindly tell me what hotel/motel your patients usually stay at? if that’s a problem i can Google your location and see what’s around. – HC in NY