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Oral cancer is categorized using the TNM staging system. This system assesses three key factors:

T: The size and location of the tumor,

N: Whether the cancer has spread to nearby lymph nodes, and

M: Whether there is metastasis to distant parts of the body.

Stages range from 0 to IV, indicating the progression of the disease.

Stage 0: Carcinoma in Situ – At this initial stage, abnormal cells are present but have not spread to deeper

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