No, Oral sex has nothing to do with it. You can get Oral Spirochetes by just living in the world. Eating anything... kissing... talking... they are everywhere. Some people, about 10% of the population, are naturally immune to them. Why? We haven't a clue. But 90% of our patients have naturally occurring oral spirochetes in their mouths. So long as they keep their gums healthy, they shouldn't be too much of a problem. The gums are a natural seal that keeps the only place the skeleton sticks through the skin... the teeth. That's why the edentulous who lost their teeth early are also healthier... no break in the skin means no access!
OK, perhaps I’m not doomed after all...