Welcome to the community.
I have some thoughts on why your traffic might not be converting. Do with it what you will.
First, I think the headline is just not believable. Nobody enjoys going to the dentist, no matter how gentle they are. I think maybe it could be more convenient, more gentle, etc., but not enjoyable. And enjoyable isn’t what prospective patients are looking for. If they are searching for a dentist, it’s not for enjoyment. It’s because they need dental services.
Think about what they likely want to know. Things like: Can they handle my issue? When would they have availability to see me? Do they accept my insurance plan? What are their qualifications?
A lot of that is on the page, but if people don’t make it past the headline, they won’t see it. That’s why nailing that hero section is so important. Then you need to anticipate questions and potential friction points as people move through the page.
The other big issue I see is that the call to action is inaccurate. People can’t book anything on the form as it exists now. It would be better to have the option to actually schedule something. As it is now, the form is just adding extra steps for the user. Give the form a reason for being there.
Adding a bit of urgency would help as well. This could be as easy as tweaking the CTA to something like “reserve your appointment” to hint that they could miss out on their preferred time slot. You could even add a line or two calling out something more directly along those lines such as appointments are limited.
Design wise, it’s a bit too monochromatic. I would add more contrast to draw attention to important elements such as the CTA.
For the location, a map might add some visual interest and context.
I hope that helps. Best of luck.