Dentistry

Question 1

How many primary vs. permanent teeth?

Answer 1

20 primary (A to T)
32 permanent

Question 2

List 5 congenital oral lesions

Answer 2

• Epstein pearls
• Epithelial pearls
• Bohn nodules
• Dental lamina cysts
• Natal teeth

Question 3

What are the features of Trench mouth?

Answer 3

Also called Vincent angina/ Acute necrotizing ulcerative gingivitis – ANUG) = spirochetal infection of gingiva in teens. Tender, bleeding gums with punched out gums. Increase risk with immunosuppressed, malnutrition, infectious mononucleosis. Tx with abx, dentistry for debridement

Question 4

What is the concern with electrical oral injuries?

Answer 4

Labial artery bleeding 5-8 days later

Question 5

List the 3 types of injury to the hard tissues of the tooth?

Answer 5

Injury to enamel, dentin (uncomplicated) or pulp (complicated)

Question 6

What are the steps for re-implanting a permanent tooth?

Answer 6

• Determine if primary or permanent tooth by asking parents, looking at timeline of tooth eruption / exfoliation (falling out) by age
• Rinse with water/ saline
• Insert into the socket (ideally), or under tongue, or in milk (ideally in a tooth preserving solution)
• PO antibiotics if re-implanting the tooth
• in ED - splint the tooth/ urgent dnetal consult

Question 7

Name 5 types of dental luxation injuries

Answer 7

• concussion
• subluxation
• intrusion
• extrusion/ lateral luxation
• avulsion

Question 8

Features of primary vs. permanent teeth

Answer 8

• Age - Primary teeth (< 5 yo) vs. permanent (> 12 yo)
• Size (primary are smaller, whiter), edges
• Mixed dentition between 6-12 —> if unsure, call dentistry
• X-rays if unsure

Question 9

Supportive treatment of ALL dental injuries

Answer 9

soft diet, soft brush after each meal, good oral hygiene, chlorhexidine mouthwash BID

Question 10

Management of avulsion of tooth

Answer 10

Primary tooth - do NOT re-implant

Permanent tooth - re-implant ASAP, PO abx, dental referral for splinting

Question 11

Management of subluxation of tooth

Answer 11

Primary tooth - do nothing, extract if very mobile and risk of aspiration
Permanent tooth - observe as outpatient, splint in very mobile

Question 12

Management of intrusion of tooth

Answer 12

Non-urgent, either allow tooth to re-erupt, or may need ortho to reposition

Question 13

List 5 complications of dental abscess

Answer 13

Facial cellulitis, CSVT, pre-septal or orbital cellulitis, intracranial abscess, meningitis, sepsis

Question 14

List 3 possible complications of dental extractions

Answer 14

• hemorrhage
• infection
• dry socket (rare in peds)