Thanks so much for your responses. So of the three, Haro, Barrigan, Macias, sounds like Haro is most expensive? Sounds like Barrigan brings in oral surgeon from Guadalajara. Does anybody know if Macias and Haro are oral surgeons; or do they also have someone they call in? Any comparisons between Barrigan and Macias? Sounds like Macias has state of the art equipment; although I'm not sure that's a factor with the full mouth implants because it's a two-stage process over 6 months or a year.