Common Questions In Presentation

Is it a good idea to have common questions in the content area of the talk?  I am a dentist and my talk is around dental implants.  I have in the past had slides to talk about pain, length of treatment, or am I a candidate?  My thought was to continue to have these in the presentation as slides and preemptively tell the audience that we will have a Q&A and to write down their questions or text them to a number, as suggested.  This is near the end of my content section right before I transition to my offer.

What is your recommendation to have the most effective slide?

Thanks,

Taj

PS Pete, I am the bald headed dentist that met you at the 10X conference behind the stage and said, "Can you help dentists?  Let's do this!"