peri-radicular surgey

Question 1

indications for per-radicular surgery

Answer 1

endodontic failure
pathology
post crowned teeth

Question 2

contraindications for peri-radicular surgery

Answer 2

systemic disease

anatomy
- lack of access
-poor perio
- involvement of neurovascular canal
- poor root filling
- poor coronal seal
-root fracture
-operator skill

Question 3

assessment for PRS

Answer 3

-stablisation of any disease
- functionality and occlusion

• look for lymphadenopathy
• look for swelling
• crown status
• recession/mobility
  -OH

Question 4

imagnify for PRS

Answer 4

PA
at least 3-5mm of anatomy around root apex
position and extent of radiolucdncy
caries and perio
endodontic status - roots, rct, anatomical landmarks

Question 5

risk of PRS

Answer 5

-standard post op
- gingival recession
- loss of papilla height
- scar tissue formation
- damage to tooth or adjacent teeth
- failure of PRS

Question 6

what is stages of PRS

Answer 6

• LA
• raise flap
• bone removal
  -curettage
• apicetomy

Question 7

flap design principles for PRS

Answer 7

• good exposure of PA lesion
• flap margins supported by bone
• should be wider than underlying bony defect
• avoid damage to blood vessels and nerves
• wider base - preserve blood supply to flap