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467.Etiology of multiple neurofibromatosis is

Reactions: 

a.Genetic
b.Viral
c.Injury
d.Endocrine


Ans-a.Genetic

Reference-Shafer's 5th ed pg 280










466.Keratocanthoma most commonly occurs on

Reactions: 
a.Lips
b.Buccal mocosa
c.Gingiva
d.Palate

Ans-a.Lips

465.Sarcoma of the soft tissues spread by

Reactions: 
1.Blood vessels
2.Lymphatics
3.Direct invasion
4.Local infiltration

Ans-1.Blood vessels
 Ref -Shafer 4th ed pg 169 /5th ed pg 220




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

Reactions: 
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

Reactions: 
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

Reactions: 
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

Reactions: 
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

Reactions: 
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

Reactions: 
a.Perinicious anaemia
b.Niacin deficiency
c.Riboflavin defeciency
d.Scarlet fever

Ans-b.Niacin deficiency

458.Pseudorhagades are seen in

Reactions: 
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

Reactions: 
a.Scleroderma
b.SLE
c.Rhinoscleroma
d.Solar elastosis

Ans-a.Scleroderma
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