INBDE (Integrated National Board Dental Examination) Practice Exam

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Prepare for the INBDE with our comprehensive quiz that features interactive questions and detailed explanations. Hone your skills and gain confidence before the big test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Excess monomer in a dental material causes ________.

Discoloration
Shrinkage
Expansion
Increased hardness

The correct answer is: Shrinkage

When there is an excess of monomer, it causes shrinkage in dental materials. This is because the excess monomer initiates a chemical reaction that creates smaller molecules which results in the overall volume of the material decreasing. The other options are incorrect because excess monomer does not directly cause discoloration, expansion, or an increase in hardness in dental materials.