Your mind, focus intent and feelings can make anything happen.
Always focus on the end result, not on the process. It doesn't matter HOW it happens, just know and believe that it will happen.
So in this case, I would focus on having a tooth, not on how it gets there (bud, etc). Visualize having a tooth there now and manifest it into existing and it WILL happen, without a doubt.
I just had a tooth extracted and I for one completely intend to have a new tooth. I know it will happen. I don't concern myself with the how or why. I just focus on the end result and I know that it will come to be.
"People who say it cannot be done should not interrupt those who are doing it.”
-Chinese Proverb