Question: Considering that Chuck had been on the island for four years, would he actually still have all of his teeth or would he have lost them all? From all the things that he saw in the packages that he opened, not one of them had anything to keep his teeth clean.
KeyZOid
23rd Feb 2021
Cast Away (2000)
Answer: It's possible that he could keep his teeth, provided he doesn't eat too many sugars. Just think of all the cultures throughout history and today that do not brush their teeth. They certainly have dental issues compared to those who regularly brush and see a dentist, but it's not like none of them have teeth.
Answer: Toothpaste and toothbrushes (+ floss) are not the only things that can be used to clean teeth! (What did people use before toothpaste and toothbrushes were manufactured?) A CLEAN finger can be used or a wet piece of cloth - and some fruits (e.g, apple) and vegetables (e.g, carrot) can help remove gunk from teeth. He had access to sea salt, which could help. If he "wiped" his teeth (after every meal and snack), he would be able to avoid plaque and tartar buildup. Toothpaste in and of itself is NOT necessary - it is added flavor to supposedly make brushing teeth taste better (e.g, bubblegum flavor for kids), be more pleasant (and thereby encourage people to brush longer), and/or add fluoride. Few, if any, people make it through adult life without a cavity, but there's no significant factor during his four years that would make him lose all of his teeth! The information given in the previous answers is also relevant.
Answer: I wasn't told as a kid I had to brush my teeth every day. I brushed them only before going to the dentist or a special occasion, would sometimes go months without brushing. I only started brushing properly after puberty and I still have each and every single one of my teeth. They're a bit yellower than average, but not that bad. Even with smoking all my life and practically living of sugar, most people actually think I have pretty decent teeth and I never get comments about having bad teeth. They do tell me that if this had gone on for much longer, I would regret it and my gums have retracted a bit from all the tartar, but this makes me assume that, being healthy, you can probably go at least 10 years with poor mouth hygiene before your teeth actually start rotting.
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Answer: Even without dental care for four years, it would take far longer for a generally healthy person to lose their teeth if they had previously maintained proper oral hygiene. Chuck's diet was a factor (little or no sugar) and he could also fashion a primitive toothbrush or toothpick from materials on the island. Ancient humans had relatively little tooth decay. It was after sugar was introduced into the European (and later American) diet in the 11th century, that dental problems started becoming more prevalent.
raywest ★