My wife is a dentist and if you are looking for high quality care at an affordable price check out the community clinics. Family Health Centers of San Diego and San Ysidro are very affordable. They charge on a sliding scale and no one is checking what you are listing your income as. If you have children you can go to The Children’s Dental Health Center in Golden Hills. Cost for a check up is about $30. Don’t see why you would ever have to go over the border for quality care.