Squamous cell carcinoma of the oral tissues: a comprehensive review for oral healthcare providers.

North Americans in 2004 were projected to die from oral and pharyngeal cancer at a rate of 1.2 per hour. Oral healthcare providers can be instrumental in reducing the incidence of oral and pharyngeal premalignant and malignant lesions by identifying patients with high-risk behavior, educating their patients about the consequences of their high-risk behavior, and by early detection of premalignant and malignant conditions. The fact only 34% of the cancers of the oral cavity and larynx are localized at the time of diagnosis and evidence that at least one third of the patients diagnosed with an oral or pharyngeal malignancy have undergone oral cancer screening within the past three years suggests the current protocol for the early detection of pre-malignant or malignant changes appears to be deficient. To facilitate early diagnosis, oral healthcare providers must take into consideration the capriciousness of oral cancer and must be familiar with the availability and application of diagnostic modalities beyond conventional visual inspection and palpation of oral soft tissues. This article provides a comprehensive review of the disease for healthcare professionals.