MDS PREP
The wavelength of X-ray photon depends upon
1. Milli amperage
2. Kilo voltage
3. Distance between source and object
4. Quantity of electrons in the cathod stream
Oral Pathology
Answer: 2
The wavelength of X-ray photons depends on the kilo voltage applied.
All of the following statements about the typical feature of a periapical granuloma are true EXCEPT
1. It consists of proliferating granulation tissue
2. It can form only if the periapical bone is resorbed
3. It shows evidence of local antibody production
4. It results from immunologically mediated tissue damage
Oral Pathology
Answer: 2
Periapical granulomas were diagnosed as well-circumscribed periapical
radiolucency measuring less than 1.5 cm in diameter, periapical cysts were
characterized by well-defined periapical radiolucency with sclerotic borders
measuring greater than 1.5 cm, and periapical abscesses were characterized by
ill-defined periapical radiolucency with diffuse margins.
While bone resorption can occur in the presence of a periapical granuloma, it
is not a prerequisite for its formation. A periapical granuloma can develop in
response to pulp necrosis or infection without necessarily requiring bone
resorption to occur first. The granuloma can form as a reaction to the
inflammatory process, regardless of the state of the surrounding bone.
Anitschow"s cells are found in histological sections of
1) Pemphigus
2) Aphthous ulcer
3) Leukoplakia
4) Lichen planus
Oral Pathology
Answer: 2
Anitschow's cells, also known as "caterpillar cells," are a type of histiocyte that can be found in the context of certain inflammatory conditions, including aphthous ulcers. These cells are indicative of a specific immune response and are often associated with the healing process of these painful oral lesions.
Serum alkaline phosphatase levels are increased in
1. Osteoarthritis
2. Dentinogenesis imperfecta
3. Paget"s disease
4. Rheumatoid arthritis
Oral Pathology
Answer: 3
Serum alkaline phosphatase levels are increased in Paget's disease.
Scleroderma involves
1. Tightening of oral mucosa and periodontal involvement
2. Multiple palmar keratosia
3. Raynaud"s phenomenon
4. All of the above
Oral Pathology
Answer: 4
Scleroderma involves tightening of oral mucosa, periodontal involvement, and Raynaud's phenomenon.
Thistle-tube appearance of pulp chamber is a feature of
1) Coronal dentin dysplasia
2) Regional odontodysplasia
3) Dentinogenesis imperfecta
4) Amelogenesis imperfecta
Oral Pathology
Answer: 1
Coronal dentin dysplasia is a genetic condition that affects the development of dentin, leading to abnormal pulp chamber morphology. The "thistle-tube" appearance refers to the shape of the pulp chamber, which resembles a thistle tube due to the constricted and elongated form of the pulp space. This condition is characterized by a normal crown appearance but with significant alterations in the pulp chamber and root canal system, making it distinct from other dental dysplasias.
Carbamazepine has been utilized to successfully diminish attacks in trigeminal neuralgia. During this therapy which of the following is indicated?
1. Clinical observation only
2. Clinical observation and complete blood and platelet counts prior to and at frequent intervals during therapy
3. No monitoring
4. None of the above
Oral Pathology
Answer: 4
During carbamazepine therapy for trigeminal neuralgia, clinical observation and blood counts are indicated.
Facial paralysis resulting in drooping of a corner of the mouth and excess lacrimation is characteristic of which of the following conditions
1. Bell"s palsy
2. Tic douloureux
3. Meniere"s disease
4. Stevens-Johnson syndrome
Oral Pathology
Answer: 1
Facial paralysis with drooping of the mouth and excess lacrimation is characteristic of Bell's palsy.