A single dental implant is typically used to support one crown, replacing a single missing tooth. However, dental implants can also be used to support multiple teeth in the form of bridges or even full-arch dentures. The number of teeth an implant can support depends on the type of prosthesis being used and the location and quality of the bone where the implant is placed.
Single Tooth: One implant supports one crown.
Fixed Bridges: If you’re missing two or three adjacent teeth, rather than placing an implant for each missing tooth, two implants can be placed to support a bridge that spans the gap. For instance, three or even four teeth can be supported by two implants.
Partial or Full Dentures:
Implant-Supported Dentures: These are dentures that are supported by and attached to implants. For a full arch of teeth, as few as 2-4 implants can be used to support a removable overdenture. However, the more implants used, the greater the stability.
All-on-4 or All-on-6: This concept involves placing four (All-on-4) or six (All-on-6) implants in strategic locations in the jaw to support a full fixed arch of teeth. The prosthesis is then permanently affixed to these implants. This approach allows for immediate loading of the implants in many cases, meaning patients can have a full set of teeth on the same day as the surgery.
Zygomatic Implants: In cases where the upper jaw doesn’t have enough bone for traditional implants, and bone grafting might not be ideal, longer implants anchored in the zygomatic bone (cheekbone) can be used. These can be used to support a full upper arch.
It’s essential to note that the number of implants required will depend on various factors, including:
- The quality and quantity of the patient’s bone.
- The forces that the teeth will be subjected to (e.g., back teeth, or molars, experience more force than front teeth).
- The type of prosthesis chosen (fixed vs. removable).
- The specific needs and anatomy of the patient.
- A comprehensive evaluation by a dentist or oral surgeon will determine the best plan for an individual’s implant needs.