Meet The Doctor
William Randi, DDS, is a Portsmouth prosthodontist at Seacoast Prosthodontics who focuses on complex restorative and implant care. Dr. Randi completed dental school at Columbia University and a specialty residency in prosthodontics at the Manhattan VA, formal training beyond general dentistry that prepares him for multi-tooth rebuilds, implant-supported restorations, and whole-mouth treatment planning. New patients and referring providers are welcome. If you have questions about your dental benefits, the team is happy to help you sort through your coverage when you call.
Learn more about the practice on our About Us page.
Photo coming soon
Dr. William Randi, DDS
Dr. Randi earned his dental degree at Columbia University, one of the foundational steps in his path to becoming a prosthodontist. That base training in general dentistry gave him the groundwork to later pursue specialty education focused on restoring damaged, worn, or missing teeth.
After a general practice residency at the Brooklyn VA, Dr. Randi completed his prosthodontics residency at the Manhattan VA. This additional specialty training, beyond dental school, is what separates a prosthodontist from a general dentist. It focuses specifically on complex restorative cases: crowns, bridges, dentures, and implant-supported restorations that need to function well together as a full system, not just look right in isolation.
Dr. Randi does not look at one tooth on its own. He evaluates how the bite, jaw, gums, and remaining teeth work together before recommending restorative dentistry or implant treatment. This whole-mouth approach means a crown, bridge, or denture is designed to fit a patient's actual bite and daily habits, not just the space it needs to fill. The goal is a result that holds up over time and feels natural when eating and speaking, not just when smiling in a photo.
This same thinking guides how Dr. Randi approaches dental implants, from single tooth replacement to full-arch implant-supported dentures. Digital impressions and CT-based planning help map out each case before treatment begins, so the plan accounts for bone structure, bite alignment, and long-term function.
A general dentist can place a filling or a simple crown. A prosthodontist has completed extra years of residency training focused specifically on restoring and replacing teeth in complex situations, worn dentitions, multiple missing teeth, implant-supported dentures, and full-mouth rebuilds. That extra training matters most in cases where several teeth or systems need to work together correctly. It's also why general dentists sometimes refer their more complex restorative cases to a prosthodontist like Dr. Randi. Dentists considering a referral can find details on our Referrals page.
Good To Know
A prosthodontist is a dentist who has completed additional residency training focused on restoring and replacing teeth. General dentists handle routine care like cleanings and simple fillings, while a prosthodontist like Dr. Randi is trained specifically for complex cases involving crowns, bridges, dentures, and implants.
Dr. Randi treats patients who need crowns, bridges, dentures, partials, or implant-supported restorations, including full-arch cases like All-on-X. He also sees patients with worn or damaged bites, missing teeth, or multiple restorative needs that require whole-mouth treatment planning.
Seacoast Prosthodontics · Portsmouth, NH
Patients with questions about coverage can visit our Insurance & Financing page, or call the office directly and the team will help sort out benefits. To ask about scheduling with Dr. Randi or learn more about his approach to care, reach out by phone.
