464.Induction effect is characterstic of which of the following conditions

a.Cementoblastoma

b.Ameloblastoma

c.Ameloblastic fibro-odontome

d.Odontogenic adenomatoid tumour

Ans-Ameloblastoma

463.The mucogingival line in the incisor and canine areas are located approximately

a.3mm apical to the crest of alveolar bone

b.10 mm apical to crest of alveolar bone

c.12 mm apical to crest of alveolar bone

d.12mm incisal to alveolar bone

Ans-3mm apical to the crest of alveolar bone

462.Advantages of Mcspaden technique are all except

a.economy of time

b.rapid filling of canals apically and laterally

c.ease of selection and treatment

d.can be used in narrow canals

Ans-d.can be used in narrow canals

461.Etiology of mongolism

a.trisomy 21
b.congenital syphillis
c.disomy 21
d.nutritional deficiency


Ans-a.trisomy 21

460.In T and Y bar clasps,retention terminals

a.are both located in the undercut

b.only one  terminal is placed in the undercut

c.none is located in  the undercut

d.one is located in near undercut and other in far undercut

Ans-b.only one terminal is placed in the undercut.

459.Bald tongue of sandwith is seen in

a.Perinicious anaemia

b.Niacin deficiency

c.Riboflavin defeciency

d.Scarlet fever

Ans-b.Niacin deficiency

458.Pseudorhagades are seen in

a.Ectodermal dysplasia

b.Congenital Syphillis

c.Scleroderma

d.Oral sub mucous fibrosis

Ans-a.Ectodermal dysplasia

457.Coup-de -sabre appearance is seen in

a.Scleroderma

b.SLE

c.Rhinoscleroma

d.Solar elastosis

Ans-a.Scleroderma

456.Zollinger Ellison syndrome is characterized by

a.Hypoglycemia

b.Recurrent peptic ulcerations

c.Diarrhoea

d.Intestinal obstruction

Ans-b.Recurrent peptic ulcerations

455.Recommended etching time for primary teeth

a.15-30 seconds

b.30-60 seconds

c.60-90 seconds

d.90-120 seconds

Ans-60 -90 seconds

454.The mineral that is critical in the transformation of plaque into sulcus

a.Calcium

b.Phosphate

c.Potassium

d.Sodium

Ans-Phosphate

453.The lower lip gets sensory supply through the

a.Buccal branch of facial nerve

b.Buccal branch of mandibular nerve

c.Mandibular branch of facial nerve

d.Mental nerve

Ans-d.Mental nerve

452.Which cement has high solubility and disintegrates readily in oral fluids

a.Silicates

b.GIC

c.Zinc Polycarboxylate

d.Zinc phosphate cement

Ans-a.Silicates

451.The first porcelain tooth material was introuced by

a.Dechemant
b.Ash
c.Plateau
d.McClean

Ans-a.Dechemant
Ref-Phillips 11nth ed pg 660