"All Blizzident-bristles are tailored to your own teeth," the manufacturer states on its website, where the futuristic brushes go for $299. "They are placed on the surface of your teeth in a 45 degree angle. They are also aligned exactly along your gumline in a 45 degree angle."
Blizzident brushes are meant to last one year, after which a replacement brush sells for $159.
The makers require customers to have impressions taken of their mouth by a dentist. Then a 3D printer fashions a customized toothbrush with 400 bristles and slits for dental floss.
"You simply bite and release quickly 10 to 15 times," the company explains.
"It's something out of the ordinary, a different approach," British Dental Association advisor Professor Damien Walmsley told BBC News, though he said safety and technique are more important than tools.
"It's not what you use, it's how you brush, it's your technique. It needs to be checked that it's completely safe."