After extraction and healing, the maxillary denture encloses severe bony undercuts in both the tuberosities. The best treatment for this condition is to reduce both the undercuts so that no bony undercuts exist anywhere on the ridge.

The blood supply to the flap that has been used to close an oroantral fistula in the area of tooth is greater palatine.

Articulators are classified into arbitrary positional and functional by Boucher.
Arbitrary positional articulators hold the mandible in a pre-determined, fixed position that does not necessarily represent the patient's true centric relation or functional movements.
Functional articulators, on the other hand, aim to simulate the patient's individual centric relation and dynamic movements of the mandible, allowing for a more accurate representation of the patient's actual occlusion.
Boucher's classification system is based on the type of articulation and the way it records and transfers the patient's jaw movements to the dental casts.

If freeway space is obliterated, it would result in all of the above: improper aesthetics, clicking sounds of the dentures, trauma to the underlying ridges.

Non-rigid or semi-rigid connectors are used in dental bridges when there is a need to accommodate non-parallel abutments (option 2). This design allows for some movement between the components of the bridge, which can help in achieving a better fit and function when the abutments are not parallel.