MDS PREP
Choose the false statement among the four
1. X-rays are ionizing rays
2. X-rays can be focused
3. X-rays cannot be seen or touched
4. X-rays can cause mutation
Oral Pathology
Answer: 2
X-rays can be focused is a false statement; they cannot be focused in the same way as light.
Size of the bite wing film is
1. 32 * 41 mm
2. 22 * 35 mm
3. 57 * 76 mm
4. 75 * 90 mm
Oral Pathology
Answer: 1
The size of the bite wing film is 32 * 41 mm.
Which of the following has been implicated due to sunlight
1. Basal cell carcinoma
2. Lymphoepithelioma
3. Junctional nevus
4. Verruca vulgaris
Oral Pathology
Answer: 1
Basal cell carcinoma (BCC) is a type of skin cancer that is strongly associated with prolonged exposure to ultraviolet (UV) radiation from sunlight.
Osteomalacia is
1. Defective osteoid + normal mineralization
2. Normal osteoid + defective mineralization
3. Abnormal osteoid + abnormal mineralization
4. Normal osteoid and demineralization
Osteomalacia is characterized by abnormal osteoid and abnormal mineralization.
Lemina dura is lost or partially lost in
1. Hypothyroidism
2. Hyperthyroidism
3. Hypoparathyroidism
4. Hyperparathyroidism
Oral Pathology
Answer: 4
Lamina dura is lost or partially lost in hyperparathyroidism.
Orange peel and ground glass radiographic appearance is observed in case of
1. Paget"s disease
2. Ewing"s sarcoma
3. Osteosarcoma
4. Fibrous dysplasia
Orange peel and ground glass radiographic appearance is observed in fibrous dysplasia.
A five-year-old child presents with chronic bed wetting and bilateral loose deciduous first molars. His mother says that she wants to drink water several times during each night. Which of the followingis the most likely diagnosis?
1. Hand-Schuller-Christian disease
2. Marble bone disease
3. Nieman-Pick disease
4. Polyostotic fibrous dysplasia
Oral Pathology
Answer: 1
The most likely diagnosis for the child is Hand-Schuller-Christian disease, which can cause chronic bedwetting and dental issues.
Dens in dente is thought to arise as a result of
1. a normal tooth but enclaved within an other tooth, during formation
2. proliferation and evagination of an area of the inner enamel epithelium
3. extensive growth of mesenchymal cells of pulp tissue
4. an invagination of the enamel organ during tooth formation
Oral Pathology
Answer: 4
Dens in dente is a rare developmental dental anomaly that is characterized by a tooth with an invaginated or cavity-like structure that appears like a "tooth within a tooth." It arises from an error during the morphodifferentiation stage of tooth development.