(A) Heating on mica tray over flame

(B) An electric annealer

(C) Heating over pure ethanol flame

(D) All of the above

(A) Cold water

(B) Hot water

(C) Under tap water

(D) Under vacuum pressure

(A) Anterior restorations

(B) Temporary bridges

(C) Denture base

(D) All of the above

(A) Pulp

(B) Enamel

(C) Cementum

(D) Dentin;

(A) Canines

(B) Premolars

(C) Incisors

(D) Molars

(A) Autoclaving

(B) Dry heat

(C) Ethylene oxide gas

(D) None of the above

(A) Microcosm

(B) Pioneer bacteria

(C) Advancing bacteria

(D) Anaerobic bacteria

(A) Discolored and remineralized area

(B) Intact and more resistant to caries attack than adjacent unaffected enamel

(C) Not restored unless esthetically required

(D) All of the above

(A) Axial wall

(B) Gingival wall

(C) Incisal edge

(D) Gingivo-axial line angle

(A) Proteolytic theory

(B) Proteolytic chelation theory

(C) Acidogenic theory

(D) Autoimmune theory