10. Pre-Prosthetic Surgery

Question 1

Name some anatomical features which might make denture retention difficult and can be excised.

Answer 1

Retained teeth/roots/pathology.
Ridge defect correction.
Mandibular and maxillary tori.
Maxillary tuberosity.
Exotoses.
Undercuts.
Genial tubercle reduction.
Mylohyoid ridge reduction.

Question 2

Define autografts.

Answer 2

Graft take from patient i.e. hip, rib, other part of the mouth.

Question 3

Define allografts.

Answer 3

Graft taken from other people i.e. cadaver bone.

Question 4

When might an allograft be appropriate ?

Answer 4

Implant tx.

Question 5

Define xenograft.

Answer 5

From animals (cows or horses) - to provide framework for normal bone to be laid down.

Question 6

When might IAN relocation be necessary ?

Answer 6

Severe alveolar bone resorption of the mandible and nerve becomes covered by only soft tissue.

Question 7

Define bony exostosis.

Answer 7

Projection of bone found not near tuberosity or midline, where tori should be found.

Question 8

When will implants be offered on the NHS ?

Answer 8

Trauma.
Hypodontia.
Oral cancer rehabilitation.