A Preclinical

B Phase I

C Phase II

D Phase V

A Cingulam

B Mamelons

C Incisal edge

D Incisal ridge

A Radix paramolaris

B Radix entomolaris

C Tomt’s root

D None of the above

A Rake face and radial line.

B Rake face and clearance face.

C Clearance face and tooth structure.

D Radial line and clearance face

A 1.2% to 25.6%

B 2.4% to 40.2%

C 6.2% to 48.8%

D 9.7% to 62.1%

A The first year of life.

B First 2 years of life.

C First 3 years of life.

D First 4 years of life.

A 80% alcohol drying immediately after bleaching

B Alpha tocopherol applied immediately after bleaching

C Sodium perborate + sodium hypochlorite

D Sodium perborate + calcium hydroxide

A Fibroblasts

B Odontoblast

C Ameloblast

D Undifferentiated cells

A Ball and socket joint

B Hinge and axis joint

C Synovial joint

D Diarthrodal joint

A Zone of infection

B Zone of contamination

C Zone of irritation

D Zone of stimulation