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NEETMDS- Radiology mcq
MDS PREP
Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle aged women may be 
 1. Periapical cysts
 2. Cementoblastoma
 3. Cementoma
 4. Odontogenic cysts
Radiology Answer: 3

Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle-aged woman may be cementoma.

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

A bilateral asymptomatic cyst-like radiolucent lesion in a 7-year-old boy at the angle of the mandible may be diagnosed as cherubism.

Primary source of X-ray photons from an X-ray tube is 
 1. Stray radiation
 2. Bremhaulstrong radiation
 3. Characteristic radiation
 4. All of the above
Radiology Answer: 2

The primary source of X-ray photons from an X-ray tube is characteristic radiation.


Minimal dentinal destruction to get evident on the radiograph
1) 30 microns
2) 40 microns
3) 200 microns
4) 300 microns
Radiology Answer: 2

Radiographic detection of carious lesions or dentinal destruction typically requires a certain threshold of loss of tooth structure. Studies have shown that a loss of approximately 40 microns of dentin is necessary for a radiograph to show evidence of carious lesions.

Best radiograph for viewing # of maxillary bone 
 1. Submentovertex
 2. PA view
 3. Waters view
 4. Towne"s projection
Radiology Answer: 3

The best radiograph for viewing the maxillary bone is Waters view.

Ankylosis of TMJ can be best viewed in 
 1. Lateral oblique view
 2. Lateral view
 3. Transcranial
 4. PA view
Radiology Answer: 3

Ankylosis of TMJ can be best viewed in transcranial view.

Zygomatic arch fractures are best viewed in 
 1. Occipitomental view
 2. Lateral oblique
 3. Submentovertex
 4. Leteral view
Radiology Answer: 3

Zygomatic arch fractures are best viewed in Submentovertex.

A thin radiolucent line which follows the root outline on X-rays is 
1. Lamina dura
2. Periodontal ligment
3. Nutrient canal
4. Pulp

Radiology Answer: 2

A thin radiolucent line which follows the root outline on X-rays is the periodontal ligament.

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