I thought it would be called a toofusis brush.
I have one toofusis with a filling. I got it when i was in 5th grade.(I’m now 40) It cracked about 5 years ago and I got a cap put on it.
I had $900.00 I was going to spend on a nice 20 hp Yamaha short shaft for my duck boat.
$850 of it went into my mouth.