MDS PREP
The tooth is tender on vertical percussion. It may be due to
1. Osteomyelitis
2. Periapical inflammation
3. Necrotic pulp
4. Angular bone loss
Endodontics
Answer: 2
Which is not a feature of Adamantinoma?
1) More common in males
2) Soap-bubble appearance on X-ray
3) Uncontrolled local growth
4) Commonest site maxilla
Oral Medicine Answer: 4
Commonest site maxilla
a. Adamantinoma is a rare tumor arising from the diaphysis of the long bone.
b. The most common long bone affected by adamantinoma is TIBIA.
c. In head and neck , the most common bone affected by adamantinoma is MANDIBLE.
d. In mandible, the most common site is the region of 3RD MOLAR.
e. Classic adamantinomas usually occur in patients older than 20 years, whereas
differentiated adamantinomas occur almost exclusively in patients younger than
20 years.
f. In addition, the 2 classifications of adamantinomas have distinct
radiographic and histologic differences.
g. Patients with adamantinomas present with variable signs and symptoms; most
commonly, they report pain and swelling.
h. The tumor is slow growing, and patients may describe discomfort lasting
months to years.
i. Treatment options for adamantinoma are surgical and include either marginal
or en bloc resection.
j. Unfortunately, neither radiation therapy nor chemotherapy has been proven
effective in the treatment of this insidious tumor.
k. The investigation of choice for adamantinoma is CT SCAN which shows cortical
destruction involving the diaphysis of the bone with surrounding periosteal
reaction.
l. On x ray there is a characteristic SOAP BUBBLE appearance.
Gingiva is attached to tooth by
1) Epithelial attachment
2) Periodontal ligament
3) Connective tissue firbres
4) Lamina propria
Periodontics
Answer: 1
How/where should the wire be bent to activate a correctly made palatal canine retraction?
1) Between the coil and tooth, but close to the coil
2) Between the coil and tooth, but close to the tooth
3) Between the coil and its insertion into the base of the plate
4) By opening out the coil
Orthodontics
Answer: 1
Bending the wire between the coil and the tooth, but closer to the coil, allows for effective activation of the retraction mechanism, providing the necessary force for movement.
The use of porcelain laminates is indicated for
1) Teeth i n parafunction
2) Heavily restored teeth
3) Closure of 1 mm diastema
4) Lower anterior teeth
Prosthodontics
Answer: 3
Periodontitis is
1. a degenerative disease
2. a neoplastic condition
3. an atrophic disturbance
4. an inflammatory condition
Periodontics
Answer: 4
In Cushing's syndrome, which hormone is responsible for the characteristic symptoms?
1) Cortisol
2) Thyroid hormones
3) Growth hormone
4) Insulin
Cushing's syndrome is caused by prolonged exposure to high levels of cortisol, a hormone produced by the adrenal glands. Cortisol excess leads to symptoms such as moon facies, buffalo hump, truncal obesity, purple striae, and proximal muscle weakness, among others.
Toxic dosage of lignocaine with adrenaline is
1. 5 mg/kg body weight
2. 10 mg/kg body weight
3. 15 mg/kg body weight
4. 20 mg/kg body weight
Oral Surgery
Answer: 1
Toxic dosage of lignocaine with adrenaline is 5 mg/kg body weight.