I washed her a*s well then I ri*med very hard her nice one. After the act I washed my teeth and mouth. I didnt have problem and I did few times. I love that to eat with her pu*sy. Hmmm my d*ck is getting harder as I remember the actions.
Maybe there will be some more scientific comments with more info.
It is never going to be 100% safe, but as long as you keep your dog healthy, dewormed and so on is should be reasonably safe. As long as your dog is into that.