Question

Which of the following is considered a disadvantage of inlay wax?

• A. High thermal expansion
• B. Controlled flow
• C. Rigidity
• D. Specific heat

Hint:

Inlay wax → Highly temperature sensitive → High thermal expansion → Risk of distortion.

Answer 1

The Correct Option is A

Step 1: Understanding Inlay Wax Properties.
Inlay wax is used in the fabrication of wax patterns for cast restorationsIt should ideally have good flow when heated, adequate rigidity at mouth temperature, and dimensional stability
Step 2: Thermal Behavior of Inlay Wax.
One of the major disadvantages of inlay wax is its high coefficient of thermal expansionSmall temperature changes can cause significant dimensional changesThis may lead to distortion of the wax pattern affecting the accuracy of the final casting
Step 3: Evaluation of Other Options.
Controlled flow is a desirable property because it allows proper adaptation
Rigidity at room or mouth temperature is beneficial to maintain shape
Specific heat is not considered a major disadvantage in clinical use
Step 4: Conclusion.
Since high thermal expansion leads to distortion and dimensional instability, it is considered the main disadvantage of inlay wax