Oral cancer has a tendency to be detected at late stage which is
detrimental to the patients because of its high mortality and morbidity
rates (survival rate 15-50% [1]). The incidence of oral cancer worldwide
is approximately 3% of all malignancies, thus creating a significant
worldwide health problem [2]. The most common form of oral cancer is
squamous cell carcinoma (SCC), which accounts for 96% of all cancers of
the oral cavity [3]. Oral squamous cell carcinoma (OSCC) and
oropharyngeal and pharyngeal SCC is the sixth most common malignancy in
the world today [4]. Oral cancer has a mean survival rate of five years,
which is much lower than other cancers [5]. Early detection will allow
oral cancer to be 90% curable and less cost effective for treatment [6].
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