Dental Oncology Services- Prosthetics

Question 1

What are the different classifications for vertical and horizontal maxillectomy/midface defects?

Answer 1

Vertical Classification:
I - not causing an oronasal fistula
II - not involving the orbit
III - involving the orbital adnexae with orbital retention
IV - with orbital enucleation or exenteration
V - orbitomaxillary defect

Question 2

______ are prostheses used in maxillectomy patients.

Answer 2

obturators

Question 3

Obturators can be either ____, ____, or _____. What’s the difference?

Answer 3

Surgical - placed at time of surgery, use 10-14 days
Interim - placed 14 days after, use for 3 months
Definitive - placed 3-6mos after surgery, permanent

Question 4

Palatal Augmentation (Drop) Prostheses are used in partial ______ patients.

Answer 4

glossectomy

Question 5

How does a Palatal Augmentation (drop) prosthesis work?

Answer 5

augments the palate to improve tongue contact, speech, and swallowing

Question 6

What is a resection appliance?

Answer 6

Maxillary
used when part of the maxilla is removed where there is NOT an oral-nasal or sinus communication
Mandibular
used when all or part of the mandible has been removed

Question 7

True or False: Implants can be used in conjunction with a resection appliance.

Answer 7

True

• device “snaps into place” on the implant
• careful planning and cone beam

Question 8

True or False: Extraoral prostheses can be of the nose, ear, or eye.

Answer 8

True

Question 9

True or False: Asymmetry is normal and should be built into any good prosthesis.

Answer 9

True