نمازج لاسئلة الهيئة

Aphthous ulcer comaerd with herpes ulcer is
A_aphthus is more characteristic in histology
B_aphthous leaves scar
C_ aphthous responds less to stresses
D_ aphthous occurs in lining mucosa



Bacteria in endocarditic pathosis is
A_ prophromonous endodontalis obligate anaerobe
B_ streptococcus muntans


In post and core preparation core must :
I_extend to contrabevel
Ii_extend to full length tooth preparation
Iii_ takes the same shape of natural tooth
Iv_take the shape of prepared abutment
A_ i+ iv
B_i+ ii
C_ iii+ iv
D_ i+ ii + iii

Regarding tissue retraction around tooth:
I_ short duration of retraction of gingival margin during preparation of finishing line
Ii_ retraction of gingival margin during taking final impression all details of unprepared finsh line
Iii_ usually retract severely inflamed gingival margin
Iv_ retraction of gingival margin can be done by many ways one of them is retraction cord
A_ i+ ii+ iii
B_ I + iv
C_ ii+ iii+ iv


Time of curing dentine bonding agent is :
A_10 sec
B_ 15 sec
C_ 20 sec
D_ 30 sec



Reparative dentine :
A_ 2 th dentine
B_ formed as dentine bridge
C_ highly tubular dentine and it is defective form of 1 st dentine
d- dentine with loss PERMEABILITY


the primary direction for spread of infection in the mandible is to submenta l lymph nodes:
a_ true
b|- false


artificial teeth to be selected by
a_ pre extraction record
b_ post extraction record


compomer has the same amount of fluoride as GA:
a_ true
b_ false


light curing time for simple shallow class iii composite is :
a_ 10 sec
b_ 15sec
c_ 20 sec
d_ 40 sec


white polycarbonate crowns are temporary crowns used for anterior teeth :
a_ true
b_ false

In recording mandibular to maxillary arches relation the best material used without producing pressure relation best to :
A_ wax
B_ compound
C_ bite registration paste


In recording to used :
A_occlual rim with recored base
B_ occlual rim with base wax
C_ occlual rim withmetal frame


Very small access opening in upper central incisor leads to :
A_ complete removal of pulp tisse
B_ incomplele removal of pulp
C_ conservative restoration


After RTC ( root canal treatment ) for insertion of post dowel :
A_ post applaied under pressure
B_ post shoud be lose
C_ insert without pressure but with retention


Marginal deterioration of amalgam restoration maybe due to
I_ no enough bulk of dentine
II_corrion
III_ OVER CARVING
IV_ improper manipulation of amalgam
A_ I + II
B_ III+ IV
C_ II + III + IV
D_ ALL OF ABOVE


Stainless stell pin used in amalgam to :
A_ increase retention
B_ increase resistance
C_ increase strength
D_ A + B

One of of the anatomical landmark is :
A_ ala tragus line
B_ ala orbital line
C_ frank fort plane
D_ all of above

After truma tooth become yellowish in color because:
A_ necrotic pulp
B_irreversible pulpitis
C_ pulp is partially of completely obliterated
D_ hemonhage in the pulp

During instrumentation sudden disappearance of root canals is due to
A_ bifurcation of main canal
B_ apical perforation
C_ calcification


Early loss of anterior teeth
A_ affects phontic
B_ affects esthetic
C_ causes space loss
D_ A+ B
E_ all of above

space Loss occurs in
a_ proximal caries
b_ early extraction
c_ ankylosis
d_ all of above