INBDE (Integrated National Board Dental Examination) Practice Exam

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During which stage of gingivitis does T lymphocyte infiltration occur?

Early
Established
Advanced
Final

The correct answer is: Early

T lymphocyte infiltration typically occurs in the early stage of gingivitis. During this initial phase, bacterial accumulation on the teeth leads to inflammation of the gingiva. As the inflammation progresses, T lymphocytes are recruited to the site of infection to help fight the bacteria. This infiltration of T cells is a key characteristic of early gingivitis and helps to trigger a prolonged immune response. The other options, namely Established, Advanced, and Final, are incorrect as they do not accurately describe the stage in which T lymphocyte infiltration occurs. Established gingivitis refers to a later stage where the gingival inflammation has become more pronounced, while advanced and final stages of gingivitis involve more severe and widespread damage to the gums and surrounding tissues. Therefore, the correct answer is indeed A Early.