How do I request medical records in compliance with HIPPA?

I requested medical records (x-rays, pictures, 3d scans, procedure notes, and anesthesia records) from my old dentist. First by phone, then by email. They sent 1 day’s set of x-rays. I asked for the rest of my xrays and for the rest of information I requested. A week later they sent me 3 months/5 visits of xrays with all...