National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

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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What is the predominant Ig in saliva?

The correct answer is: IgA

Saliva contains a variety of immunoglobulins (Igs), which are antibodies that help to protect the body from infections. The most abundant Ig found in saliva is IgA, making up about 70% of the total Ig in saliva. IgM, IgG, and IgE are also present in smaller amounts, but IgA is the predominant Ig in saliva. IgG is predominantly found in blood, not in saliva. IgM and IgE are also not as abundant in saliva as IgA. Therefore, A is the correct answer.