NEET MDS Quiz - Practice Test

1

Radiology

Which of the following restrorative material is most radiolucent
1) Methyl methacrylate
2) Conventional composites
3) Zinc oxide eugenol
4) Gutta-percha cone

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Conventional composites, zinc oxide eugenol, and gutta-percha cones contain heavy metal atoms or compounds (like barium glass in composites) to impart radiopacity,

Methyl methacrylate (MMA) resins, used in some dental applications like denture bases, are inherently radiolucent and typically do not have these heavy fillers added to it.

2

Radiology

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

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Ankylosis of TMJ can be best viewed in transcranial view.

3

Radiology

Intensifying screen is used in extraoral radiograph to
1) Decrease patient radiation
2) Increase contrast
3) Decrease contrast
4) Collimation

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Intensifying screens are primarily used to decrease patient radiation exposure. They convert X-ray energy to light energy, which is more efficient at exposing the film. This allows for lower X-ray doses while maintaining adequate image density, thus reducing radiation exposure to the patient.

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