ODONTOGENIC CYST

Question 1

Most common cyst of the jaw

Most common odontogenic cyst

Answer 1

Periapical Cyst ( Radicular, Apical Periodontal)

Question 2

Clinical features of Periapical cyst (Radicular, Apical Periodontal)

Answer 2

📌Mx. Anterior - Mx. Posterior- Mand. Posterior- Mand. Anterior
📌Nonvital tooth

Question 3

Radiograph of Periapical Cyst (Radicular/ Apical Periodontal)

Answer 3

Rount to ovoid radiolucency

Question 4

‼️‼️‼️BE‼️‼️‼️

Microscopic / Histopath of Periapical Cyst

Answer 4

• Nonkeratinized stratified squamous epithelium
• Source of epithelial lining: Rest of Malassez
• Rushton bodies / Hyaline Bodies

Question 5

Tx. Periapical cyst/ Apical Periodontal/Radicular

Answer 5

Extraction
RCT
Apicoectomy

Question 6

Cyst developed after tooth extraction & incomplete removal of a periapical cyst

Answer 6

Residual Cyst

Question 7

QUESTIONS:

What is the remnant of HERS

Answer 7

Rest of Malassez

Question 8

Remnant of dental lamina

Answer 8

Rest of serres

Question 9

Between roots of mandibular premolar & canine

Vital teeth

Answer 9

Lateral periodontal cyst

Question 10

Round & teardrop shaped radiolucency

Answer 10

Lateral Periodontal Cyst

Question 11

Microscopic/ Histopath of Lateral Periodontal Cyst

Answer 11

Nonkeratinized stratified squamous epithelium

Source of epithelial lining: Rest of Serres

Question 12

Tx. of Lateral Periodontal Cyst

Answer 12

Enucleation

Question 13

2nd most common odontogenic cyst

Most common developmental cyst

Answer 13

Dentigerous Cyst (Follicular Cysf)

Question 14

Clinical features of Dentigerous Cyst / Follicular Cyst

Answer 14

📌3rd molars & canine
📌attached to the CEJ
📌most common idndication is delayed eruption
📌may transform into Ameloblastoma

Question 15

Radiographic of Dentigerous Cyst

Answer 15

RDL around the crown of the tooth

Question 16

Microscopic / Histopath Dentigerous Cyst

Answer 16

📌Nonkeratinized Stratified Squamous Epithelium
📌Source of Epithelial lining: REE
📌Rushton bodies/ Hyaline Bodies

Question 17

Tx. of Dentigerous Cyst

Answer 17

Enucleation

Question 18

Soft tissue variant of Dentigerous cyst/ Follicular cyst

Answer 18

Eruption Cyst

Question 19

Aggressive
High recurrence rate
Mandible (Molar-ramus area)

Answer 19

Odontogenic Keratocyst (Keratocystic Odontogenic Tumor)

Question 20

DDX of Dentigerous cyst/ Follicular Cyst

Answer 20

AOT

Question 21

Classificatim of Odontogenic Keratocyst (Keraotocystic Odontogenic Tumor)

Answer 21

Solitary

Multiple

Question 22

1 only one

most common Classification of Odontogenic Keratocyst ( Keratocystic Odontogenic Tumor)

Answer 22

Solitary

Question 23

Common children associated w/ syndrome

Answer 23

Multiple Odontogenic Keratocyst

Question 24

Radiograph of Odontogenic Keratocyst

Answer 24

RDL

Question 25

Microscopic / Histopath of Odontogenic Keratocyst / Keratocystic Odontogenic Tumor

Answer 25

📌Keratinized Stratified squamous epithelium (parakeratinized)
📌 Source of Epithelial lining: Rest of Serres
📌Palisading basal layer with no epitthelial ridges
📌Aspirate : cheese like substance

Question 26

📌Multiple OKC
📌Basal Cell Carinoma
📌Palmar or Plantar Keratotic Pitting
📌Bifid ribs
📌Calcified falx cerebri

Answer 26

‼️‼️‼️BEQ‼️‼️

Nevoid Basal Cell Carcinoma Syndrome / Basal Cell Nevus / Gorlin Goltz /Bifid Rib

Question 27

Tx. Nevoid Basal Cell Carcinoma

Answer 27

Enucleation w/ currettage
Marsupialization
Peripheral Ostectomy

Question 28

Maxilla
RDL / amixed lucent opaque
Salt & Pepper pattern
**Microscopic/ Histopath : Ghost cell keratinizatin

Answer 28

Calcifying Odontogenic Cyst ( Calcifying Cystic Odontogenic Tumor)

Question 29

Tx. COC

Answer 29

Enucleation

Marsupialization