This Book is based on a prospective study of oral squamous cell carcinomas. Surgical specimen of non-metastasis tumours were compared with metastasis. Each case was graded according to TNM classification, Broder’s classification and Anneroth’s classification. Both Anneroth’s’ classification and Broder’s classification are significant but Anneroth’s one is more significant than Broder’s. According to Statistical analysis one parameters of Anneroth’s grading system, pattern of invasion, shows relationship with lymph node metastasis.
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