I don't think that would be a good choice for frying. Xanthan gum is amazing for baking and thickening sauces, soups and gravy; I really don't think it would fry well. The best breading for okra would be equal parts flour and cornmeal.
The egg mixture is best -- you simply drain some of the egg mixture before putting them right in the batter, rather than drying them as you'd have to with...
Yes, you can. Kissing has nothing to do with your gum disease or periodontitis where anaerobic bacteria is involved. Just remember to keep a constant oral health by brushing, flossing...