National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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.