Cysts Flashcards
Name the odontogenic cysts?
Radicular
Residual
Lateral periodontal
Dentigerous
Cysts Of the jaw can be categorised into which groups?
Odontogenic or non odontogenic
Name some non odeontgenic cysts
Nasopalatine
Nasolabial
Bone cyst
Where do Radicular cysts originate from?
Cell rests of malassez from HERS
What are the radjogrpahic features of Radicular cysts?
Well defined
Corticated
Unilocular
Round
T/F Radicular cysts are radiolucenct?
T
Which teeth are most commonly affected by Radicular cysts?
Permanent incisors (usually upper)
What are the effects of Radicular cysts?
Displace teeth and RARELY resorb
What is a residual cyst?
Radicular cysts that remains once tooth been XLA’d
What is the size of a Radicular/residual cyst?
1.5-3cm
What type of odontogenic cyst is a lateral periodontal cyst?
Odontogenic developmental
Where do lateral periodontal cysts originate from?
Dental lamina
Where are lateral periodontal cysts usually seen?
Lateral root surface
Where do Dentigerous cysts arise from?
Reduced enamel epithelium
Wich teeth are mainly affected by Dentigerous cysts?
3s and 8s
When would you suspect a tooth has a Dentigerous cyst?
When follicular space larger than 3/4mm
What is the difference between an eruption and a Dentigerous cyst?
Eruption cyst is when the Dentigerous cyst is in the overlying soft tissue
Where does the Dentigerous cyst attach to the tooth?
CEJ
What type of cells line a Dentigerous cyst?
Non keratinised stratified epithelium.
When would you suspect a nasopalatine duct cyst?
Cyst in the midline
Heart shaped
6mm+
What are the different types of multilocular radiolucinecnes?
Tumours and giant cell lesions
Name the odontogenic tumours
SOOKAA Sialo odontogenic tumour Odontogenic fibroma and myxoma Keratocyts Ameloblastoma Ameloblastic fibroma
