Question: Dentists and Autism

Here’s a question from a Parent searching for Answers about better dental care for their 6 year old with Autism:

“How can one prepare a child with Autism for the Visit to the Dentist?  We just got him used to regular doctor visits, and hist Doctor is completely understanding – and even sat on the floor with him to get his vitals…but the dentist seems rather new and challenging.  I’m just afraid all the poking and prodding around his mouth will make him go into full tantrum mode”

Let’s help this parent out, Any suggestions?