Ace the NDEB 2026 – Get Set to Shine on Canada’s Dental Exam!

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.