pls care to answer

[jcv]

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hi
i am a foreign trained dentist & preparing for part 2 exam...pls can some body give answer to following questions??

1.how to give younger appearance in max incisor by selective grinding of enamel
a.flattening the incisal edges
b.shortening the inc edges
c.rounding the inc point angles
d.moving the facial line angleas proximally
e.moving the facial height of contour gingivally

2. inflamm from pdl extends to bone marrow
a.trauma from occlusion
b nutrient canal
c pdl
d course of vascular channels

3 acc to ada,a dentist can announce specialization in
a.implantology
b.hospital dentistry
c.aesthetic dentistry
d.dental public health
e geritric dentistry