Two visits of 5 to 7 days, about six months apart. Visit 1 covers the CT scan, your written plan, the surgery (extractions, any grafting and all implants in the same visit) and your temporary. After 4 to 6 months of healing at home, visit 2 is for the permanent bridge, made in our own lab, fitted and calibrated. In the cases where the implants cannot safely be placed in the same surgery as the extractions, because of active infection or too little bone on the day, it becomes three visits: extractions and grafting first, implants and temporary second, permanent bridge third. The day 1 CT scan tells us which, you approve the plan before anything is done, and the per-arch price is the same whether it takes two visits or three.