A 1 minute.

B 20-30 sec.

C 10 sec.

D 15-20 sec.

A Can’t double blind in animal trials

B All animal trials are unethical

C Can’t do interim analysis

D Are always prospective

A Extirpation of pulp

B Enlargement of canal

C Obturation of canals

D All of the above

A Sharpey's fibers

B Intrinsic fibers

C Proteoglycans

D Phosphoproteins

A Case control study

B Cohort study

C Prospective study

D Descriptive study

A Long axis of tooth

B Between B-L axis of tooth

C Between M-D axis of tooth

D Infinity

A Supraocclusion of restoration

B Retained cement in gingival sulcus

C Excess acid in mix

D Galvanic current caused by gold onlay occluding with a large restoration

A Severe itchy skin lesions over extensor surfaces

B Most of the patients have underlying coeliac disease

C It is characterized by IgE anitbodies against TTG : Tissue transglutaminase

D Dapsone is the drug of choice

A 1

B 2

C 4

D 6

A 20%

B 50%

C 80%

D 100%