Role of Erythropoietin

# In the absence of erythropoietin (EPO), committed erythroid progenitor cells undergo ?
A. Stunted growth
B. Halting of growth
C. Programmed cell death (apoptosis)
D. Change to other series of hematopoietic cell

The correct answer is C. Programmed cell death (apoptosis).

For RBC production, EPO is the regulatory hormone. It is required for maintenance of committed

erythroid progenitor cells which undergoes programmed cell death (apoptosis) if EPO is absent.

Ref: Harrison’s 18th Ed. 448

Painful preauricular lymphadenopathy is a feature of

# Painful preauricular lymphadenopathy is a feature of ?
A. Cat-scratch disease
B. Tularemia
C. Tuberculosis
D. Syphilis

The correct answer is B. Tularemia.

Painful preauricular lymphadenopathy is unique to tularemia and distinguishes it from catscratch

disease, tuberculosis, sporotrichosis, and syphilis. 

Ref: Harrison’s 17th Ed. 978

Tularemia, also known as rabbit fever, is an infectious disease caused by the bacterium Francisella tularensis. Symptoms may include fever, skin ulcers, and enlarged lymph nodes. Occasionally, a form that results in pneumonia or a throat infection may occur.

The bacterium is typically spread by ticks, deer flies, or contact with infected animals. It may also be spread by drinking contaminated water or breathing in contaminated dust. It does not spread directly between people. Diagnosis is by blood tests or cultures of the infected site.

Multiple Choice Questions In Conservative Dentistry - Tooth Colored Restorations

# Restoration of angle fracture of anterior teeth can be done by:
A. Amalgam
B. Composite resin
C. Glass ionomer cement
D. All of the above

# Replanted avulsed tooth can be aesthetically stabilized by:
A. Occlusal splints
B. Composite resins
C. Arch bar
D. All of the above

# The main disadvantages of composites not being recommended for class II posterior restorations are:
A. Color matching is not good
B. Lacks sufficient strength
C. Occlusal wear
D. Frequent fractures at the isthmus

Not a contraindication to dental implant

# Which of the following conditions is not a contraindication to dental implant placement?
A. Diminished healing capacity of the patient's tissues
B. Current chemotherapy for the treatment of cancer
C. History of radiation therapy to the maxillofacial complex
D. Dysmorphophobia
E. Advanced patient age

Advanced patient age is not a contraindication to implant treatment. The ability of the
patient to withstand surgical treatment, etc. is a decision resting on the systemic health
of the patient.

Any condition that causes an impairment of the patient's ability to heal should be considered
as a contraindication to implant treatment. Serious psychiatric conditions such as psychoses should be considered a contraindication to implant treatment. Dysmorphophobia is an extremely irrational fear of being disfigured by treatment. Psychiatric complications can make the patient change his or her opinion about the acceptability of treatment which is difficult for the clinician to overcome.