The posterior extension of max complete denture can be detected by the followings EXCEPT.. Fovea palatine

The posterior extension of max complete denture can be detected by the followings EXCEPT:

• a- Hamular notch.
• b- Fovea palatine.***
• c- Vibrating line.

The correct answer is b. Fovea palatine.

Here's why:

a. Hamular notch:

The hamular notch is a V-shaped depression on the posterior border of the maxilla, located lateral to the pterygoid hamulus. It serves as a landmark for the posterior extension of the maxillary complete denture base.

b. Fovea palatine:

The fovea palatine are two small depressions located on the hard palate, approximately 1 cm behind the incisive papilla. While they can be used as a reference point during denture construction, they are not directly related to the posterior extension of the denture base.

c. Vibrating line:

The vibrating line, also known as the Hamulo-pterygoid line, is the border between the movable soft palate and the immobile hard palate. It is the key landmark for determining the posterior extension of the maxillary complete denture base. Extending the denture base past the vibrating line can interfere with the movement of the soft palate, causing discomfort and instability.

Therefore, the fovea palatine is the only option not directly related to the posterior extension of the maxillary complete denture base.