MDS PREP

Overlapping of proximal structures in a periodical or bitewing radiograph is due to
1) Incorrect horizontal positioning of cone
2) Incorrect vertical positioning of cone
3) Incorrect vertical positioning
4) None of the above

Radiology Answer: 1

Half value layer refers to
1. The rate at which an X-ray photon transfer"s the energy to irradiated matter
2. The thickness of a substance required to reduce the number of X-ray photons by half
3. Both the above
4. None of the above

Radiology Answer: 2

Radiographically, the normal horizontal plane of alveolar bone interdentally is related to
1. Cementoenamel junction of adjacent teeth
2. Epithelial attachement of adjacent teeth
3. Trabecular pattern of bone
4. All of the above

Radiology Answer: 1

Best X-ray for mesiodens is
1) Occlusal
2) PA view
3) Panorex
4) Bitewing

Radiology Answer: 1

Bilateral asymptomatic cyst like radiolucent lesion in a 7-year-old boy at the angle of mandible may be diagnosed as
1) Cherubism
2) Paget"s disease
3) Fibrous dysplasia
4) Static bone cyst

Radiology Answer: 1

Penumbra in a processed film is related to
1) Magnification
2) Sharpness of image
3) Detail of the image
4) All of the above

Radiology Answer: 4

Sharpness of image on the film can be increased by
1) Large focal spot
2) Small focal spot
3) Decreased target-skin distance
4) Increased film-object distance

Radiology Answer: 2

Overexposure of film results in
1) Increased density and dark film
2) Increased density and light film
3) Decreased density and light film
4) Decreased density and dark film

Radiology Answer: 1

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MDS PREP

Overlapping of proximal structures in a periodical or bitewing radiograph is due to1) Incorrect horizontal positioning of cone2) Incorrect vertical positioning of cone3) Incorrect vertical positioning4) None of the above

Half value layer refers to 1. The rate at which an X-ray photon transfer"s the energy to irradiated matter 2. The thickness of a substance required to reduce the number of X-ray photons by half 3. Both the above 4. None of the above

Radiographically, the normal horizontal plane of alveolar bone interdentally is related to 1. Cementoenamel junction of adjacent teeth2. Epithelial attachement of adjacent teeth3. Trabecular pattern of bone4. All of the above

Best X-ray for mesiodens is1) Occlusal2) PA view3) Panorex 4) Bitewing

Bilateral asymptomatic cyst like radiolucent lesion in a 7-year-old boy at the angle of mandible may be diagnosed as1) Cherubism2) Paget"s disease3) Fibrous dysplasia4) Static bone cyst

Penumbra in a processed film is related to1) Magnification 2) Sharpness of image3) Detail of the image4) All of the above

Sharpness of image on the film can be increased by1) Large focal spot2) Small focal spot3) Decreased target-skin distance4) Increased film-object distance

Overexposure of film results in1) Increased density and dark film2) Increased density and light film3) Decreased density and light film4) Decreased density and dark film

Explore by subjects

Overlapping of proximal structures in a periodical or bitewing radiograph is due to
1) Incorrect horizontal positioning of cone
2) Incorrect vertical positioning of cone
3) Incorrect vertical positioning
4) None of the above

Half value layer refers to
1. The rate at which an X-ray photon transfer"s the energy to irradiated matter
2. The thickness of a substance required to reduce the number of X-ray photons by half
3. Both the above
4. None of the above

Radiographically, the normal horizontal plane of alveolar bone interdentally is related to
1. Cementoenamel junction of adjacent teeth
2. Epithelial attachement of adjacent teeth
3. Trabecular pattern of bone
4. All of the above

Best X-ray for mesiodens is
1) Occlusal
2) PA view
3) Panorex
4) Bitewing

Bilateral asymptomatic cyst like radiolucent lesion in a 7-year-old boy at the angle of mandible may be diagnosed as
1) Cherubism
2) Paget"s disease
3) Fibrous dysplasia
4) Static bone cyst

Penumbra in a processed film is related to
1) Magnification
2) Sharpness of image
3) Detail of the image
4) All of the above

Sharpness of image on the film can be increased by
1) Large focal spot
2) Small focal spot
3) Decreased target-skin distance
4) Increased film-object distance

Overexposure of film results in
1) Increased density and dark film
2) Increased density and light film
3) Decreased density and light film
4) Decreased density and dark film