Why Japanese teeth are often wonky

Last December, MyVoice carried out a survey about brushing teeth. In Japan, dentist skill, and dental hygiene, or lack thereof, is often a subject of ridicule by the foreign contingent, but I seem to have been lucky and found a very good dentist. Actually, if it hadn’t been for my Japanese dentist and all the work he did (yes, I have British teeth) I don’t think I’d have had the confidence to meet my wife.

They sought the opinion 16,013 people via a web-based survey from the internet community “MyVoice”, of whom 42% were male, and found, amongst other things, that not many people at all attend regular check-ups.

Q1: Each day, how many times do you normally brush your teeth?

Don’t usually do so 1%
Once 25%
Twice 53%
Thrice 19%
Four or more times 2%

Q2: If you brush your teeth, which of the following do you use when brushing? (Multiple answer?)

Toothpaste 90%
Non-electric toothbrush 77%
Dental floss 19%
Electric toothbrush 18%
Mouthwash 13%
Interdental brush 12%
Other 1%
No answer 0.1%

Q3: Have you used an electric toothbrush?

Currently using one 18%
Used to use one, but not now 43%
Never used one 38%
No answer 1%

Interestingly, 4% more men currently used an electric brush and 8% more women had stopped using one.

Q4: Do you think you’ll want to use an electric toothbrush in the future?

Really want to use 19%
Somewhat want to use 40%
Don’t really want to use 30%
Don’t want to use at all 10%
No answer 1%

Q5: Which of the following statements are accurate regarding your own teeth? (Multiple answer)

I brush my teeth just as a habit 45%
I really want beautiful white teeth 42%
I have tooth decay 29%
I’m concerned about stains from tobacco, tea and coffee, etc 28%
I try to eat gum and sweets with Xylitol in them 28%
Sometimes a dentist removes plaque and tartar 24%
I often brush, as my teeth are very important 21%
I am troubled by gingivitis and other gum disease 21%
I actively seek information for maintaining healthy teeth 15%
I get regular check-ups at the dentist 14%
I’ve worn a brace 7%
I have almost no regard for the state of my own teeth 4%
No answer 0%

That regular check-up figure of 14% compares with 61% in the UK, the usual butt of American jokes, and 66% in the USA.

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  • 6 Comments »

    1. Most Japanese wear glasses: part 1 of 2 » 世論 What Japan Thinks said,

      April 20, 2006 @ 21:08

      […] Following on from a previous survey that looked at toothbrush habits, this survey another popular stereotype of the Japanese, the wearing of spectacles. DIMSDRIVE Research interviewed 7,851 members of their internet monitor group, 56.9% female, by means of an internet-based questionnaire. The age demographics were 1.5% teenagers, 20.8% in their twenties, 35.6% in their thirties, 25.6% in their forties, 11.7% in their fifties, and 4.8% aged sixty or older. […]

    2. Most Japanese wear glasses: part 2 of 2 » 世論 What Japan Thinks said,

      June 5, 2006 @ 22:58

      […] Following on from a previous survey that looked at toothbrush habits, this survey addresses another popular stereotype of the Japanese, the wearing of spectacles. DIMSDRIVE Research interviewed 7,851 members of their internet monitor group, 56.9% female, by means of an internet-based questionnaire. The age demographics were 1.5% teenagers, 20.8% in their twenties, 35.6% in their thirties, 25.6% in their forties, 11.7% in their fifties, and 4.8% aged sixty or older. […]

    3. Japanese brush 2.4 times a day » 世論 What Japan Thinks said,

      June 17, 2006 @ 21:49

      […] The state of Japanese teeth are one of common stereotypes one hears of, and a topic that I have featured before, in a translation of a survey on this topic last year by MyVoice. […]

    4. Cecelia Denton said,

      July 7, 2006 @ 06:34

      I had read that Japanese have 4 more teeth than
      caucasians. Is this so?
      Thanks !! Celia

    5. Ken Y-N said,

      July 7, 2006 @ 08:30

      I’ve never heard of that one before! I have absolutely no reason to believe anything other than they have the same amount of teeth as anyone else. It may be that the percentage of people with no wisdom teeth is different (my Japanese boss has none, though, and maybe the instance of wisdom tooth extraction is higher in the West?) but the crowding and squint teeth you often see is due to a combination of smaller jaws and less corrective dentistry, and no doubt a few other factors.

    6. Japanese oral care » 世論 What Japan Thinks said,

      February 10, 2008 @ 23:20

      […] but quite interesting pair of surveys from DIMSDRIVE Research’s 133rd ranking survey on two Japanese teeth-related subjects, frequency of brushing and oral care other than […]

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