Dentosphere : World of Dentistry

# Septal hematoma is treated with: A. Incision/Drainage B. Antibiotics C. Nasal packing D. Decongestants   The correct answer is A. Incision/Drainage. Treatment of septal hematoma is performed via small incisions through the mucoperichondrium to evacuate the blood. After the drainage the nose is packed or quilting stitches are put in. Silicone stents can also be used to prevent re-accumulation of the hematoma.  CLICK HERE FOR MORE MCQs

 # Which type of cell accumulates wherever allergic reactions take place (e.g., asthma)?  a. Neutrophils.  b. Monocytes.  c. Eosinophils.  d. Basophils. The correct answer is C. Eosinophils. Neutrophils can squeeze through the capillary walls and into infected tissue where they  kill invaders (e.g., bacteria) and engulf the remnants by phagocytosis. Monocytes leave the blood and become macrophages. Eosinophils are a type of white blood cell that contain granules and take up the  red dye eosin. They accumulate wherever allergic reactions (e.g., asthma) occur. Their natural role is in the defense of parasites and other microorganisms. Basophils are a type of white blood cell filled with blue-staining granules of chemicals including histamine, serotonin, bradykinin, heparin, and cytokines such as prostaglandins and leukotrienes. In addition, basophils can digest microorganisms and are responsible for allergy symptoms. CLICK HERE FOR MORE MCQs

 # Hemidesmosomes connect which of the following structures?  a. Connective tissue and basement membrane.  b. Basement membrane and basal cell layer.  c. Connective tissue and basal cell layer.  d. Basal cells. The correct answer is B. Connective tissue and basal cell layer.  Anchoring fibrils connect the connective tissue to the basement membrane. Hemidesmosomes connect the basement membrane to the basal cell layer. The connective tissue and basal cell layer do not connect. Hemidesmosomes connect the basement membrane to the basal cell layer. CLICK HERE FOR MORE MCQs

# Upto what levels of systolic and diastolic blood pressures ambulatory oral surgical care can be safely given? A. Systolic 120 and diastolic 80 mm of Hg B. Systolic 140 and diastolic 90 mm of Hg C. Systolic 160 and diastolic 100 mm of Hg D. Systolic 200 and diastolic 110 mm of Hg The correct answer is D. Systolic 200 and diastolic 110 mm of Hg. Mild or moderate hypertension  (i.e., systolic pressure <200 mm Hg or diastolic pressure <110 mm Hg) is usually not a problem in the performance of  ambulatory oral surgical care, as long as the patient is not having  signs or symptoms of end-organ involvement secondary to the elevated blood pressure.  Care of the poorly controlled hypertensive patient includes use of an anxiety-reduction protocol and monitoring of vital signs.  Epinephrine-containing local anesthetics should be used cautiously; after surgery, patients should be advised to seek medical care for their hypertension. Elective oral surgery for patients...

 # Which is most difficult to diagnose? A. Necrosed pulp B. Internal resorption C. Chronic pulpitis D. Acute apical abscess The correct answer is C. Chronic pulpitis. Both necrotic pulp and chronic pulpitis are difficult to diagnose and can show varied symptoms.  Chronic pulpitis can be differentiated by its history of clinical symptoms.  Chronic pulpitis under a crown restoration is most difficult to diagnose.  This question is a direct pick from NBDE and the answer is Chronic Pulpitis.  CLICK HERE FOR MORE MCQs

 # Stunned pulp is: A. Stunning appearance on radiograph B. Does not respond to vitality tests 6-8 weeks after trauma C. Necrosed pulp D. Hyperaemic pulp The correct answer is B. Does not respond to vitality tests 6-8 weeks after trauma. Diagnosis of traumatized tooth: - Diagnosis is made from the patient's history, visual examination, radiographs, electric pulp test, and the thermal test. Following fracture of the root, the reaction to tests of pulp vitality may be negative for as long as 6-8 weeks; that is, the pulp is stunned. - A stunned tooth due to injury responds within 6 weeks. If it does not respond after that, pulp may be undergoing necrotic changes. CLICK HERE FOR MORE MCQs

 # Which one of the following is a feature of chronic extravascular hemolysis?  a. Raised serum conjugated bilirubin  b. Low reticulocyte count  c. Hypocellular bone marrow  d. Gall stones The correct answer is D. Gall stones. Hemolytic anemia is a form of anemia due to hemolysis, the abnormal breakdown of red blood cells (RBCs), either in the blood vessels (intravascular hemolysis) or elsewhere in the human body (extravascular). This most commonly occurs within the spleen, but also can occur in the reticuloendothelial system or mechanically (prosthetic valve damage). Hemolytic anemia accounts for 5% of all existing anemias.  It has numerous possible consequences, ranging from general symptoms to life-threatening systemic effects. The general classification of hemolytic anemia is either intrinsic or extrinsic. Treatment depends on the type and cause of the hemolytic anemia. Symptoms of hemolytic anemia are similar to other forms of anemia (fatigue and short...