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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Medical-Implants

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Intermediate

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1. What is the main benefit of grain refinement in implant materials?

a: Reduced corrosion resistance Explanation

Explanation

b: Lower melting temperature Explanation

Explanation

c: Increased strength and fatigue resistance Explanation

Explanation

d: Increased brittleness Explanation

Explanation

2. Why is fatigue resistance important for implants like hip and knee joints?

a: Exposure to chemicals Explanation

Explanation

b: Repeated cyclic loading during movement Explanation

Explanation

c: High operating temperature Explanation

Explanation

d: Electrical stimulation Explanation

Explanation

3. Which process improves mechanical properties by plastic deformation?

a: Casting Explanation

Explanation

b: Welding Explanation

Explanation

c: Sand molding Explanation

Explanation

d: Severe plastic deformation Explanation

Explanation

4. Why must implant materials be non-toxic?

a: To avoid adverse biological reactions Explanation

Explanation

b: To increase surface hardness Explanation

Explanation

c: To reduce manufacturing cost Explanation

Explanation

d: To improve machinability Explanation

Explanation

5. Which body parts commonly require metallic implants as shown in the experiment?

a: Skull and ribs Explanation

Explanation

b: Tooth, elbow, and hip Explanation

Explanation

c: Fingers only Explanation

Explanation

d: Neck only Explanation

Explanation

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