With the cost of a single implant averaging $4,500, it can add up quickly when you need multiple teeth replaced. Alternatives are implant supported bridges and dentures. If you have a row of 3 or more teeth that need replaced, an implant can be placed on either end of the row with a bridge attached. If you need an entire arch of teeth replaced, implant supported dentures are a good option. The implants provide solid anchors to keep your dentures in place and help to preserve bone density in your jaw. If the cost is not a concern, you can get as many dental implants as you wish.