For Dr. Val Kolpakov, a dentist from Saginaw, Michigan, dentistry is more than just a profession, it’s a hobby. He managed to put together the largest collection of toothpastes in the world, just for fun.

Doctor Kolpakov began collecting toothpastes after reading about Carsten Gutzeit, a German who had collected 500 tubes of toothpaste. He thought that was a great hobby for a man of his profession, so he started contacting all his dentist friends, from foreign countries, and asked them to send him whatever toothpastes they used there. He also started a website, toothpasteworld.com, and began searching for toothpastes on eBay.

His impressive toothpaste collection now stands at 1,800, and includes various flavors, from chocolate, to bamboo and several alcoholic drinks. The most valuable item in Dr. Val’s collection, is an antique Georgian tooth powder box, from 1801, that he paid $1,500 for. Back then toothpaste wasn’t even invented.

Another interesting item is the radioactive Doramund toothpaste, dating back to World War 2, when people believed radioactive materials would help rebuild gum tissue.

A new Guinness Book category has been approved, specifically for Doctor Kolpakov, and now all he need do is submit proof that he has the world’s largest collection of toothpastes.

Photos by Ashley L. Conti/ The Saginaw News via mlive