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Yes
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1. Can you do the half-lever exercise and hold it for 3 seconds? Optional Questions :- 2. If you're over 15 you should have 32 teeth (although the wisdoms might not have come through yet). You can count them if you need to, 8 teeth upper and lower, on each side. Please tell us how many adult teeth you have had extracted?










I have all my teeth (no extractions) I have had 1 tooth extracted I have had 2 teeth extracted I have had 3 teeth extracted I have had 4 teeth extracted



Now, this bit might seem a bit strange - which is why we are doing the experiment. You probably didn't know it but tiny pressure sensors that surround the roots of your teeth are directly connected to areas of your brain which control muscle strength. We want to know whether having teeth extracted for any reason (orthodontics etc) causes muscle weakness. So we have two more questions for you:- 10's
4. I am in my
   20's 30's 40's 50's 60'sNo low back pain A little low back pain Some low back pain Moderate low back pain Quite a lot of low back pain Very severe low back pain 70'sI have had 5 or more teeth extracted


Your name and email are not essential. We will only use them to send you the results of the experiment or if we need to authenticate your data. Your confidentiality is assured. We will not be selling you anything or passing your details to anyone else. This is a legitimate scientific experiment.




3. Over the last 5 years, would you say you have had:



5. Your first name
6. Your Email

I Accept the











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