Question

During the first surgery for a subperiosteal implant, what occurs once the alveolar ridge is exposed?

A. A surgical stent is made using acrylic resin.
B. An impression is taken of the alveolar ridge.
C. The metal frame is positioned.
D. Titanium implants are inserted into the alveolar ridge.

Answer 1

Once the alveolar ridge is exposed, an impression of it is taken. This is used to create the metal frame for a subperiosteal implant. No titanium implants are involved at this stage of the procedure.

Step-by-step explanation:

The correct answer to the question is B. An impression is taken of the alveolar ridge. During the first surgery for a subperiosteal implant, after the alveolar ridge is exposed, an accurate impression of the alveolar ridge and surrounding tissue is created.

This impression is essential because it is used to fabricate a metal frame that precisely fits over the ridge. Later, in a second surgery, the custom-made metal frame is positioned under the periosteum on top of the alveolar ridge. At this stage, no titanium implants are inserted into the ridge, as the subperiosteal implant rests on top of the bone, rather than being inserted into it.