Dental Assistant Practice Exam

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Study for the Dental Assistant Exam. Prepare with flashcards and multiple choice questions. Each question includes hints and explanations to help you succeed. Get ready for your exam today!

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!

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How much pressure (in PSI) can enamel withstand?

50,000 PSI
75,000 PSI
100,000 PSI
125,000 PSI

The correct answer is: 100,000 PSI

Enamel, which is the hardest tissue in the human body, is designed to protect the tooth. It has an impressive ability to withstand significant levels of pressure due to its mineral composition, primarily hydroxyapatite, which gives it exceptional strength and durability. The correct value for the pressure enamel can withstand is around 100,000 PSI. This remarkable ability allows enamel to endure the forces exerted during chewing and biting, which are crucial for the function of the teeth in the digestive process. Options that present lower or higher values misrepresent enamel's strength. They may not take into account the rigorous scientific assessment of enamel's properties, which determine that while enamel is incredibly strong, it also has its limits when faced with extreme pressures.