All-on-4 dental implants cost anywhere from a minimum of $21,000 to a maximum of $50,000+ (including the upper and lower arch). However, on average, patients may spend $12,000 to $25,000 per arch.. So, if you are thinking about getting this treatment, keep reading to learn how much all-on-4 dental implants cost with insurance, the factors that affect the cost, and explore ways to afford them ...