Question 1

What are subperiosteal implants?

Accepted Answer

Subperiosteal implants are a type of dental implant that consists of a custom-made metal framework placed on top of the jawbone, just beneath the gum tissue. Posts protrude through the gum to hold the prosthetic teeth.

Question 2

How do they differ from endosteal implants?

Accepted Answer

The main difference is placement. Endosteal implants are surgically placed *into* the jawbone, while subperiosteal implants rest *on* the jawbone.

Question 3

What is the procedure for subperiosteal implants?

Accepted Answer

It's a two-stage surgical process. First, an impression of the jawbone is taken to create the custom framework. In the second surgery, the framework is fitted onto the bone, and the gum is closed over it, leaving the posts exposed for the final restoration.

Question 4

What are the benefits and drawbacks?

Accepted Answer

The main benefit is that they can be an option for patients with severe bone loss who cannot undergo bone grafting. However, they are generally considered less stable and durable than modern endosteal implants.

Question 5

Who is an ideal candidate for subperiosteal implants?

Accepted Answer

They are typically considered for patients who have insufficient bone height for conventional implants and are not candidates for, or do not wish to undergo, bone augmentation procedures.

Question 6

Why are they less common today?

Accepted Answer

They are now rarely recommended due to significant advancements in bone grafting techniques and the development of specialized implants like basal and zygomatic implants, which offer more predictable and durable solutions for severe bone loss.

Subperiosteal Implants

Understanding Subperiosteal Implants

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