Oral squamous cell carcinoma accounts for 90% of all oral cancers. Early carcinomas often go undetected because pain usually is not a factor until the lesion has reached a remarkable size. The most common locations are the tongue and floor of the mouth. Any lesion lasting more than 2 weeks should be suspicious for oral cancer. Lesions are difficult to see because it is dark inside the mouth; therefore, 65% of oral cancers are not diagnosed until advanced stages. Early diagnosis is the most important consideration for improving patient survival.