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


Ans-a.Genetic

Reference-Shafer's 5th ed pg 280

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

Ans-a.Lips

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

a.Cementoblastoma

b.Ameloblastoma

c.Ameloblastic fibro-odontome

d.Odontogenic adenomatoid tumour

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

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

a.are both located in the undercut

b.only one  terminal is placed in the undercut

c.none is located in  the undercut

a.Perinicious anaemia

b.Niacin deficiency

c.Riboflavin defeciency

d.Scarlet fever

a.Ectodermal dysplasia

b.Congenital Syphillis

c.Scleroderma

d.Oral sub mucous fibrosis

a.Scleroderma

b.SLE

c.Rhinoscleroma