well I'm going to put her back on soaked alfalfa cubes because she really enjoyed them. Strategy is a pelleted feed, ill try soaking it to see if she eats it better until she gets used to her "new" teeth. I know the best bet is to call the dentist back out but I just wanted to see if anyone else has run into a problem like this. She has put on about 30-40 pounds since her teeth got done so I'm not worried about her getting the nutrients, just worried about the dropped grain and the extra salivating. I'll most likely give her a little more time before I call the dentist back or wait until she comes back anyway to float my geldings.
Well, a horse can vary up to 50 pounds on any given day, so 30-40 is not a significant amount at all.
I'd soak all of the feed every day... Strategy is great, I'd put the hay cubes in the bottom of a bucket about half full, put her strategy ration on top, and fill it up with water until the water is just covering all of the feed. Let it sit for a minute or two so the water can absorb into all of the feed, and then give it to her.
As for the salivating and dropped grain-- often when horses had really bad teeth, they have abscesses in the mouth. Once the teeth are floated the irritation is mostly gone, except when eating grain. The little pieces can get into these sores and irritate them. I have a feeling you'll see the dropped grain until any sores are healed up. Soaking the grain into mush will alleviate this issue more, so no hard chunks get into any sores.
And the salivating-- is the horse out on pasture with clover? Clover makes some horses drool like rabid dogs, literally QUARTS of drool can come out of their mouth at one time. Could that be it?