Lots of nonsense on this topic... as usual. Unless you have first hand experience with a Mexican dentist your opinion is worth squat. Stories of others.... I heard about this guy that {blah blah blah}, may or may not have a grain of truth to them. I have heard lots of horror stories about US dentists, my wife was ripped off big time by a clown in Tucson but I won't disparage all as most are excellent.
This is just as true in Mexico. I have been to Nogales three times with excellent results every time. Costs are approximately 70 per cent less than in the US {where most Mexican dentists got their training}. My 3 tooth bridge with a root canal would have been something north of $4,000 in Tucson but cost me $1,218 in Nogales. Several US dentists have examined it and all agreed it was a a nice piece dental work. Two small fillings set me back $80, took 30 minutes and did not even require a shot - did not feel a thing. again US dentists {that I still use for simple cleanings}, all agree the work was excellent.
If you have no insurance or an abundance of cash going to Mexico is a low cost viable alternative to learning to gum your food.
:C