I recently had a family that was concerned about difficulty during the teeth brushing routine using a vibrating toothbrush. I recommended a vibrating toothbrush, for good oral health & hygiene, as well as "awakening the oral cavity" for speech, language, and oral feeding. I suggested the following methods and steps that have worked for some of my other families:
1. Singing songs & reading books about brushing teeth
2. Having playtime with the toothbrush to prepare for
brushing teeth, rewarding with (stickers, TV/iPad time, etc.)
3. Allowing the child to touch his preferred toothbrush and allowing them to choose when they would like to touch the less desired one, etc.
4. Modeling several people use the toothbrush to prove there is nothing to be afraid of
5. Not forcing the vibrating toothbrush right away, but instead
introducing it in phases: tolerating it in the area, next to them, on their body or in their hand, turning it on etc.