[Zzyzx]

To Me, this seems like a Jumbo, AAA Urban Legend...Pure Fantasy.
The first page because of 5 reasons:

1. Constant "friend of a friend" use.
2. The inacuracy of the data (cockroaches CAN NOT infest someones gums)
3. The admitted lack of media attention.
4. The failure of the place to close down even after it was reportedly "discovered".
5. The varried...although simmilar... claims of the same events

For the second page, it gives you seven resons already, which are

1. one or more pregnant roaches landed in a batch of chicken meat and remained there undetected
2. the roach — or, at any rate, her egg capsule (or "ootheca") — survived the standard 140-degree (F.) heat of the steam table
3. the crunchy body of the roach was not seen, tasted or otherwise detected by the customer
4. the small, hard egg capsule was not swallowed intact, but instead ruptured during mastication, spilling out its contents in the customer's mouth
5. the eggs "somehow got into her saliva glands" (?) instead of being swallowed and digested
6. the eggs survived exposure to the digestive enzymes in saliva
7. the customer was one of those fewer than one-in-four people who are allergic to cockroaches.

Given 12 different resons why this is unlikely, I can safely say that this story is a hoax.