A Marginal leakage

B Fractured restoration

C Irreversible pulpal damage

D Tooth brush abrasion

A Cavity preparation

B Dehydration

C Water irrigation

D None of the above

A Bacteroides

B Wolinella

C Neisseria

D Eikenella

A Corticosteroids to reduce inflammation

B Penicillin

C Local antibiotic application

D None of the above

A Stainless steel

B Carbon steel

C Both have equal efficacy

D None

A It removes smear layer

B It expose collagen

C It opens dentinal tubules

D It increase surface tension

A NiTi

B Beta titanium

C Stainless steel

D Co-Cr-Ni

A 1 mm below the level of the recession

B 1 mm below the ACJ

C 1 mm below the canal opening

D 1 mm below the roof of pulpal chamber

A Supine

B Semi erect

C Erect

D Trendelenburg

A 5 years

B 10 years

C 15 years

D 25 years