2014 #1 Endodontic Therapy of a Mandibular Canine Tooth with Irreversible Pulpitis Secondary to Dentigerous Cyst Scott MacGee

Question 1

What were the treatments performed in this case report?

Answer 1

• Tx of dentigerous cyst:
  
  • Removal of previously placed bioglass
  • Cyst debridement with submission of lining for histopath
  • Removal of remnants of 305 and extraction of 306
  • Placement of Periomix
• Root Canal of 304

Question 2

What are the 3 parts of a cyst?

Answer 2

1. central cavity
2. epithelial lining
3. fibrous capsule

Question 3

Where does a dentigerous cyst attach?

Answer 3

Cementoenamel junction

Question 4

Which tooth are dentigerous cysts most commonly associated?

Answer 4

Mandibular first premolar tooth

Question 5

In human medicine which oral cancers have been most commonly associated with malignant transformation of dentigerous cysts?

Answer 5

• Ameloblastoma
• Squamous Cell Carcinoma

Question 6

What two enzymes have been linked with odontogenic cysts and tumors?

Answer 6

Matrix metalloproteinase (MMP) MMP-9 AND MMP-2

Question 7

What peptide receptor has been linked with odontogenic cysts and tumors?

Answer 7

PTH and PTHrP Parathyroid hormone and Parathyroid hormone-related receptor protein

Question 8

What are the 9 factors the author discusses that have been linked with odontogenic cysts and tumors in recent human studies? (I don’t know if we really need to know this)

Answer 8

MMP-9 MMP-2 PTH and PTHrP CD 10 and OPN RANK, RANKL and OPG

Question 9

What are the arrows pointing at in this grainy blurred out radiograph?

Answer 9

Unerupted mandibular premolar and dentigerous cyst