Hey how ya doin? I noticed this tiny brown spot on my left upper canine tooth, and it is near the back part of that tooth. I had gotten a routine checkup and cleaning Midmarch of 2010. Also, on that same canine tooth, in the front part, I had a composite filling put in at the same time as the dental cleaning. In regards to the brown spot, it is not sensitive to poking or probing. When I try to scratch it off, I noticed this layer over that part of the tooth and I can't scratch it off with my fingernail or another tool like a sharp screwdriver or knife. I'd like to ask my dentist about it, but I had a sensitivity problem about 2 months ago with one of my teeth and saw the dentist about it and he charged me $75 for a 5 minute evaluation and all he did was give me some extra fluoridated toothpaste. If i go for another evaluation and I'm told it's just a stain, I would feel I wasted another $75 and that is a lot of money. Here are 3 pictures for reference..
Since my next 6 month cleaning and routine checkup is not due until mid September, what do you recommend I do?