Here are some really challenging questions that I remember fromt he May exam...
-The major reason not to extract a mandibular 3rd molar accompanied with pericoronitis is fear of
1-Osteomyelitits.
2-Spread of infection.
3-Anesthesia wont work. *
4-Bacteremia.
-Difference between Osteosarcoma & fibrous dysplasia is that osteosarcoma
A- can invade soft tissue.
B- is an ill-defined radiolucency.
C- is Malignant.
D- difficult to irradiate from normal bone.
-In bruxism, what is in action
1- A Delta & C fibers.*
2- Sphenopalatine ganglion.
3- Basilar ganglion. 4- ?
(some people think it is A delta & C fibers)
-Chronic Nasal constriction with resultant mouth breathing, may cause
A- Increase in lower facial height.
B
- Increase in lower facial height & maxillary constriction.
C- Increase in lower facial height, maxillary constriction & crowding of lower anterior teeth.
D- Difficult to evaluate.
-Which is more apt to cause displacement of neighboring teeth
A- Dentigerous cyst.
B- periapical Abscess.
C- Radicular cyst.
D- Lateral periodontal cyst.
E-Cementoma.
-1-Accessory canals are most probably found in the
1-cervical 3rd.
2-middle 3rd.
3
-apical 3rd of the root.* I think
-When placing a full crown on a tooth with large MOD amalgam restoration; you place the finishing line
a-on amalgam. * (I think it doesn't matter as long as it is in right relation with gingiva)
b-1mm gingival to amalgam
c-2mm gingival to amalgam.
d-same level as amalgam ends.*
-Most common cause of class II division 1 malocclusion
1- Maxillary prognathism. *
2-maxillary retrognathism.
3-mandibular prognathism.
4-mandibular retrognathism.*
-a patient with severe bleeding disorder; which of the following holds the least risk:
1)injection of inf.alv.nerve block.
*
2)a subgingival restoration.
3)scalling supragingivally* should not be invasive but I am not sure!
-causes of composite polymerization shrinkage during setting
1-Evaporation of the by-product.
2-Evaporation of unreacted monomer.
3-temp change occurring during polymerization.
4-replacment of 1ry bonds by 2ry bonds*
(or 2ry bonds by 1ry bonds, can't remember)
-causes of composite polymerization shrinkage during setting
1-Evaporation of the by-product.
2-Evaporation of unreacted monomer.
3-temp change occurring during polymerization.
4-replacment of 1ry bonds by 2ry bonds* (or 2ry bonds by 1ry bonds, can't remember)
2006 EE unknown questions
-causes of composite polymerization shrinkage during setting
1-Evaporation of the by-product.
2-Evaporation of unreacted monomer.
3-temp change occurring during polymerization.
4-replacment of 1ry bonds by 2ry bonds* (or 2ry bonds by 1ry bonds, can't remember)
Particulate hydroxyapatite, when placed
subperiostially,
1. is highly biocompatible.
2. has a low incidence of secondary
infection following surgery.
3. has a tendency to migrate following
insertion.
4. induces bone formation throughout the
implanted material.
A. (1) (2) (3)*
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.
Root resorption of permanent teeth may be
associated with
1. excessive orthodontic forces.
2. chronic periradicular periodontitis.
3. traumatic injury.
4. periapical cemento-osseous dysplasia.
A. (1) (2) (3)*
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.
The roots of primary molars in the absence of their
permanent successors
1. sometimes are partially resorbed and
become ankylosed.
2. may remain for years with no significant
resorption.
3. may remain for years partially resorbed.
4. are always resorbed.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.
The facial and lingual walls of the occlusal portion
of a Class II cavity preparation for an amalgam in
deciduous teeth should
A. be parallel to each other.
B. diverge toward the occlusal surface.
C. converge toward the occlusal surface.
D. not follow the direction of the enamel
rods.
A maxillary complete denture exhibits more
retention and stability than a mandibular one
because it
1. covers a greater area.
2. incorporates a posterior palatal seal.
3. is not subject to as much muscular
displacement.
4. is completely surrounded by soft tissue.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.
What clinical evidence would support a diagnosis
of acute dento-alveolar abscess?
1. A negative reaction to the electric vitality
tester.
2. A positive reaction of short duration to
cold.
3. A positive reaction to percussion.
4. Presence of a draining fistula.
A. (1) (2) (3)
B. (1) and (3)*
C. (2) and (4)
D. (4) only
E. All of the above.*
