Treatment of 570 cases of oral squamous cell carcinoma.

This paper presents results of treatment in 570 cases with oral cancers. The overall 5-year survival rate was 64.5% and 92.8%, 84.9%, 50.2% and 16.4%, respectively for Stages I, II, III and IV. Five kinds of therapy have been used and discussed. The mortality rate of operation was 0.35%. The 5-year survival rate of 127 and 443 cases with and without cervical node metastases was 28.3% and 74.7% respectively. The 5-year survival rates of 81, 30 and 16 cases with involvement of 1, 2 and more than 3 nodes were 33.6%, 27.9% and 6.3% respectively. The 5-year survival rates were 35.5%, 14.4% and 0% when upper, middle and lower cervical nodes were respectively involved. Forty-six cases recurred and were operated on again, their 5-year survival rate was 23%.