Orthodontic/Dental Surgery

Question 1

List two indications for TMJ arthroscopy.

Answer 1

1. The treatment of intracapsular disorders

2. The treatment of internal derangements

Question 2

For what reasons would a TMJ (temporomandibular

joint) arthrotomy be performed.

Answer 2

Fibrous or bony ankylosis, tumor resection, chronic dislocation, severe fibrous adhesion removal in the TMJ, severe osteoarthritis, painful nonreducing disc dislocation.

Question 3

What are some possible complications of TMJ

arthroscopy/arthrotomy.

Answer 3

Facial and trigeminal nerve damage, partial hearing loss, vertigo, ear fullness, hemorrhage,

Question 4

What are the advantages of arthroscopic TMJ

procedures compared to open surgical techniques?

Answer 4

There is better preservation of blood flow and lymphatic drainage to the joint, and there is less disruption of periarticular tissue.

Question 5

Will muscle relaxation and general anesthesia
always improve the mouth opening of an individual
with TMJ disorders?

Answer 5

No

Question 6

What patient populations necessitate general

anesthesia or deep sedation for oral/dental surgery?

Answer 6

1. Mentally retarded patients
2. Young children
3. Patients with oral sepsis
4. Patients with poorly controlled seizure disorders
5. Patients presenting for TMJ procedures.

Question 7

Where is the preferred placement of an endotracheal tube for a patient undergoing dental surgery?

Answer 7

Nasotracheal

Question 8

What can result from damage to the lingual nerve

during surgical tooth extraction?

Answer 8

Numbness of the tongue

Question 9

What can result from damage to the inferior alveolar

nerve during surgical tooth extraction?

Answer 9

Lip numbness

Question 10

Patients with rheumatoid arthritis presenting for
surgical correction of TMJ disorder may have what
associated problems that can complicate intubation?

Answer 10

Instability/immobility of the cervical spine and immobility of the
cricoarytenoid joint.