MDS PREP
A patient who suffered a myocardial infraction 3 months previously and is on anticoagulant therapy, requires full mouth extractions. The dentist should
1. simply extract the teeth under local anesthesia
2. hospitalize the patient, control prothrombin time and extract the teeth under local anesthesia
3. hospitalize the patient and perform the extractions under general anesthesia
4. delay the extractions until after 6 months of the myocardial infarction
Oral Medicine
Answer: 4
Bowen disease is
1. Benign neoplasm of the GIT
2. Intra epithelial carcinoma
3. Vesiculobullous lesion of skin
4. Ulcerative lesion of GIT
Oral Pathology
Answer: 2
Frankfort horizontal is reference plane constructed by joining
1) Porion and orbitale
2) Nasion and sella
3) Porion and sella
4) Porion and nasion
Orthodontics
Answer: 1
The sprue former should be attached to the wax pattern
1) At the thinnest point
2) At the point of greatest bulk
3) At the junction of proximal and
4) None of the above occulsal surfaces
Dental Materials Answer: 2
The sprue former should be attached to the wax pattern at the area of more bulk
Zinc phosphate cement powder contains all of the following except
1. zinc oxide 2. magnesium oxide
3. bismuth oxide 4. aluminum phosphate
Dental Material
Answer: 4
Zinc phosphate cement powder contains zinc oxide, magnesium oxide, bismuth oxide
In serial extraction procedures, the most critical observation is during eruption of
1) Primary second molars
2) Premanent maxillary molars
3) Permanent mandibular canines and first premolar
4) Permanent mandibular incisors and canines
Orthodontics
Answer: 3
Drugs mostly cross biological membranes by
1) Passive diffusion
2) Active diffusion
3) Active transport
4) Carrier mediated transport
Pharmacology Answer: 1
Passive diffusion: The movement of drug across a membrane in a manner driven solely by the concentration gradient. In passive diffusion, drug moves from a region of greater concentration to a region of lesser concentration.