Demineralization of Enamel Occurs When the Critical PH of 5

question 10

Multiple Choice

Demineralization of enamel occurs when the critical pH of 5.5 is reached.In interproximal areas or in deep pits and fissures,the pH can decrease to 5 and remain at that pH for 30 minutes.

• A) Both statements are true.
• B) Both statements are false.
• C) The first statement is true; the second is false.
• D) The first statement is false; the second is true.

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