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Cardio, Fitness

Is Exercise Bad For Your Smile?

Exercising improves every aspect of your health, safe one: your teeth get more caries, dental erosion and other nightmares.

The Olympics: A Dental Horror Show

Last year English dentists examined 278 athletes who had participated at the 2012 Summer Olympics.

They found that 75% had high levels of tooth decay, gum disease and erosion of tooth enamel.

The first assumption was that high-sugar sports drinks and bars are the culprits. Not so, say German researchers.

More Exercise, More Tooth Decay

Dentists at Heidelberg University Hospital recruited 35 professional triathletes and the same number of non-athletes. They tested saliva and dental health for both groups and also had them fill out a questionnaire about their eating and toothbrushing habits.

Compared with the couch potato group, the athletes showed worse erosion of tooth enamel and had more cavities.

Smiling woman with perfect teeth

Exercise and say goodbye to your pearly little friends?

But the tooth decay didn’t come from consuming sports drinks or other fitness supplements. Athletes had worse results no matter what they ate.

The connection much rather lay in the amount of exercise: the more time athletes spent training, the worse their tooth problems were.

Less Saliva, More Alkaline

But why? It became clear when the scientists compared the endurance athletes’ saliva before, during and after training to that of the non-athletes. Before the athletes trained, their saliva was similar to that of the non-athletes.

But during training, their mouths became increasingly drier and more alkaline. A high alkaline content can lead to more plaques and other conditions your teeth don’t appreciate.

If strength athletes could run into the same problems is unknown, but they already have unique tooth challenges of their own.

How’s Your Oral Hygiene?

This was a small study, so its results aren’t set in stone. But if you spend a lot of time exercising, regular visits to your dentist sound like even more of a good idea than for the rest of the population.

As is, of course, good oral hygiene! Brush and floss and have your teeth in the same fit shape as the rest of you!

Pictures courtesy of Conor Lawless and “Eddy Van 3000.”

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Latest Comments

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4 Comments

  1. Dr. J says:
    September 25, 2014 at 8:31 pm

    I read the study and comments in the NYT. Most people said to drink more water even though the study said this made no difference. I am suggesting that drinking water is not as useful as swishing the water around your mouth frequently to make the environmental ph less alkaline.

    Reply
    • evilcyber says:
      October 13, 2014 at 3:22 pm

      I believe so too. When just swallowing, the water barely gets into contact with the teeth.

      Reply
  2. Ph-question says:
    October 13, 2014 at 1:26 pm

    I am somewhat confused by the problem the more alkaline environment creates. This is the first time I hear a rising salivary ph being bad for the teeth. Correnct me if I’m wrong, but doesn’t the majority of cavity-causing organisms (S. mutans, for example) thrive in an acidic environment? To the best of my knowledge, the protective role of saliva is that it makes the mouth MORE alkaline, thus inhibiting the colonization of the plaque by such bacteria.

    I can definitely see the problem of the reduced salivary flow, which is the same thing that riuns the mouths of meth addicts, but isn’t the higher ph actually a BENEFIT of physical exercise? Of course, this benefit might be offset by the reduced amount of saliva.

    Reply
    • evilcyber says:
      October 13, 2014 at 3:21 pm

      As far as I understand, it’s a matter of balance and for optimum tooth health the pH has to stay in a specific range.

      Too much alkaline can apparently damage the teeth’s organic compounds, in return making the enamel weaker:

      http://www.sahlgrenska.gu.se/english/news_and_events/news/News_Detail/Exposure_to_alkaline_substances_can_result_in_damaged_teeth.cid899773

      Reply

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