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NEET MDS Quiz - Practice Test
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Practice Test

Dental Materials - 3 Questions

1
Dental Materials

If a partially set material is seated, the die material obtained from such impression will be

1) Oversized
2) Undersized
3) Retains its dimension due to elasticity of the material
4) Dimensions will be un changed but may leave a rough surface

📝 Explanation:

If Impression tray comprising of elastomeric impression material is seated too late as elasticity starts to develop, raised seating pressure is applied to overcome the stiffness of impression material.

Because of recovery of excessive elastic deformation  there is development of distortion
The die produced in the inaccurate impression is too narrow and too short.

2
Dental Materials

What is the maximum allowable level of mercury in the blood according to the given information?
1) 1 g/L
2) 3 g/L
3) 5 g/L
4) 10 g/L

📝 Explanation:

The maximum allowable level of mercury in the blood is specifically mentioned as 3 g/L in the provided text.

3
Dental Materials

What are the main components of a typical dental composite resin?
1) Monomers, fillers, initiators, and accelerators.
2) Resins, fillers, catalysts, and diluents.
3) Polymers, pigments, and plasticizers.
4) Monomers, fillers, and cross-linking agents.

📝 Explanation:

Dental composite resins typically consist of a resin matrix (monomers), filler particles (such as silica or glass), initiators (like camphorquinone), and accelerators (such as amines) to control the setting process.

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