A clinical evaluation of malignant tumor in oral cavity

A total of 23 carcinoma of the lower gingiva treated at the Second Department of Oral Surgery, Kyushu Dental College Hospital, during 1978 to 1985, were clinical analysed.The following results wereobtained:1) A series of 23 primary cases with carcinoma of the lower gingiva were reported. This series was found histopathologically to be; 21 cases squamous cell carcinoma (91.3%), 1 case (4.3%) carcinoma simplex and 1 case (4.3%) adenocarcinoma.2) The carcinoma of the lower gingiva in the majority of 23 cases was located in the molar region (73.9%). Of the 23 cases, 15 cases (65.2%) were between 60 to 70 years of age. As to sex, incidence, it was slightly higher in males.3) The complaint most commoney reported was swelling and pain of the lower gingiva.4) In TNM classification, the majority of 23 cases were T 2, T 3, N 0 case and stage II, stage III case.5) Radiographically, the majority of 23 cases had bone resorption (71.5%).6) Treatment was performed mostly by combination therapy of the partial mandiblectomy with chemotherapy and/or radiation therapy.7) The five year absolute cure rate for all cases was 38.1%.