SEYMOUR KARL RETTINGER, D.D.S.

PLACENTIA, Calif. — Seymour Karl Rettinger, D.D.S., passed away June 6, 2026, at age 90. Born in New York City, he earned his dental degree from Columbia University and served as an officer in the U.S. Air Force. He practiced general dentistry at Rockefeller Center in Manhattan for decades before retiring first to Cornwall and then Middlebury, Vt., where he founded Addison County Dental Care. He later moved to San Diego and Placentia, Calif., to be near family. He was a passionate creator of stained-glass art.

A devoted husband, father, and grandfather, Sy is survived by his sons, David and James; daughters-in-law, Julie and Michelle; grandchildren Ellery, Brendan, and Connor; and nephew Rob Wenig. He was preceded in death by his wife, Charlotte; his sister, Frances; and nephew, Peter.

Funeral services will be held June 26, at 9:30 a.m., at Riverside Nassau North Funeral Home, Great Neck, N.Y., followed by interment at Mount Hebron Cemetery. Donations may be made to the Open Door Clinic in Middlebury. ◊