M. Marc Liechtung, DMD

Dental implants don’t have to feel like a gamble. In a city where every block has a dentist, finding one who specializes in the structural side of things—periodontics—can narrow the field fast. M. Marc Liechtung, DMD focuses on that exact niche, offering procedures that go beyond routine cleanings: bone grafts, sinus lifts, implant placement, and soft-tissue contouring. The Upper East Side has no shortage of medical offices, but few zero in on the foundation work that keeps smiles intact for decades.

You’ll find the practice at 225 E 70th St # 1E, a mid-block address that blends into the neighborhood’s quiet rhythm. The building itself is unassuming, the kind of pre-war walk-up where the elevator is optional and the front door locks promptly at six. Appointments are scheduled by phone, so if you’re considering a consult, keep (212) 517-4660 handy. There’s no online booking here—just a direct line to someone who can pencil you in between crown fittings and periodontal charting.

Directions are best pulled from the map; the cross street is Third Avenue, though the practice sits closer to Second. They don’t advertise weekend hours, so plan accordingly. When the subway rumbles beneath 72nd Street, it’s a reminder that even in a city this dense, some things still require a deliberate stop.