Extractions and Implants

[Brian]

Due to previously botched bridge work on my wife's lower jaw, all but 6 teeth extracted and three separate bridges, we are now considering mini implants and an over-denture due to our limited budget. The remaining 6 teeth are rotting and several are infected. The doctor has recommended my wife, who is 55 yrs of age, diabetic and hypertensive, have all six remaining teeth and her upper left molar extracted, for a total of 7, and then have 4 mini implants placed immediately. My question is whether this is a wise course to pursue or should she wait for some healing before the implants are placed? I have read several forums concerning this course of action, but they all seem to talk about a single replacement. Digital x-rays are attached. Any and all advice would be welcome.