Originally Posted by dannic

However Cervical cancer is not the only thing that this prevents...

Cervical Cancer and Oral Cancer
There are other forms of HPV which are also sexually transmitted, and are a serious problem. These are; HPV-16, HPV-18, HPV-31, and HPV-45. These cancer-associated types of HPVs cause dysplastic tissue growths that usually appear flat and are nearly invisible. Dysplastic tissue is the presence of abnormal cells on the surface of the skin. Dysplasia is not cancer, but it is a tissue change seen prior to malignancy. A highly studied topic is HPV's ability to cause cervical cancer. Dysplasia can be detected on the female cervix through a Pap smear test, or seen visually using a magnifying glass called a colposcope. The most dangerous HPV's, 16 and 18, which are transmitted through sexual contact are known to cause up to 95% of cervical cancers. Now these two HPV's are also being linked to oral cancer.

A study done by Dr. No-Hee Park showed that the mouth was, at the cellular level, structurally very similar to the vagina and cervix. Both organs have the same type of epithelial cells that are the target of HPV 16 and HPV 18. The majority of oral cancers are cancers of epithelial cells, primarily squamous cell carcinomas, not unlike the cancers that affect the cervix. Dr. Park's study also showed that smoking and drinking alcohol help promote HPV invasion.. Combine tobacco and alcohol with HPV, and the epithelial cells in the mouth, and you may have the formula for the development of an oral cancer.

A recent study conducted by Dr. Maura Gillison at the Johns Hopkins Oncology Center furthered the premise that HPV is linked with certain types of oral cancer. In 25% of 253 patients diagnosed with head and neck cancers, the tissue taken from tumors was HPV positive and HPV 16 was present in 90% of these positive HPV tissues. This information helps to confirm that there is a strong link between HPV 16 and oral cancer. 25% of those diagnosed with oral cancer are non-smokers while the other 75% of those diagnosed have used tobacco in some form during their lifetimes. The research into the relationship of HPV and oral malignancies may give us clues as to the origin of cancer in those 25% of diagnosed individuals who did not smoke. Further research is being conducted into the relationship of HPV with oral cancers.