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.
In Peutz-Jeghers syndrome, the oral lesions are
1. Ulcerations of oral mucosa
2. Sebaceous glands of oral mucosa
3. Silver pigmentation of oral mucosa
4. None of the above
Oral Pathology
Answer: 3
In Peutz-Jeghers syndrome, the oral lesions are characterized by silver pigmentation of the oral mucosa.
Radiation caries is caused by irradiation of
1. Salivary glands
2. Enamel
3. Enamel and dentin
4. Oral mucosa
Oral Pathology
Answer: 1
Radiation caries is caused by irradiation of salivary glands.
Metastatic disease to the oral region is most likely to occur in which of the following locations?
1) Tongue
2) Posterior maxilla
3) Posterior mandible
4) Floor of the mouth
Oral Pathology
Answer: 3
Metastatic disease in the oral cavity typically occurs in the posterior mandible. This is because the bone in this area is relatively porous and has a rich blood supply, making it more susceptible to the spread of cancer cells from distant sites in the body.
Commonest site for carcinoma of tongue is
1) Lateral margin
2) Tip of tongue
3) Posterior 1/3
4) Ventral surface
Oral Pathology
Answer: 1
The commonest site for carcinoma of the tongue is the lateral margin.
Carcinoma of the tongue is the most frequent oral cancer, and it typically
arises from the squamous cells that cover the surface of the tongue. The lateral
margin of the tongue is the part of the tongue that lies next to the teeth and
the gingivae. This site is often exposed to various carcinogens, such as those
found in tobacco and alcohol, which can increase the risk of developing cancer.
Premature exfoliation of deciduous teeth is seen in
1. Hypophosphatasia
2. Hypophosphataemia
3. Hyperphosphtasia
4. Hyperparathyrroidism
Oral Pathology
Answer: 1
Premature exfoliation of deciduous teeth is seen in hypophosphatasia.
Lession of facial nerve at level of stylomastoid foramen leads to
1. Loss of taste sensation from anterior 2/3 of tongue
2. Paralysis of orbicularis oculi muscle
3. Losss of innervation to stapedius
4. Loss of lacrimal secretion
Lesion of the facial nerve at the stylomastoid foramen leads to paralysis of the orbicularis oculi muscle.
Blue sclera are present in
1. Marfan"s syndrome
2. Cherubism
3. Osteogenesis imperfecta
4. All of the above
Oral Pathology
Answer: 4
Blue sclera are present in osteogenesis imperfecta.