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Health Forum    Dental
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 What is the best Oral B electric toothbrush on the market?
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 Why whole mouth teeth deep cleaning to be done in 4 times? Any difference with surgery?
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 how is dental implantand how much it would cast .?
i need to workout -what is the best Spa in Alpharetta,G...


 Any informations about speedy braces and orthognathic surgery (maxilofacial or jaw surgery)?
I want to know if its true that speedy braces (a new kind of brsces) takes only half time of regular braces? they say it takes 6 monthes to get your teeth fixed!!!
I am planning to have a jaw ...


 Does it cover?
I have union dental insurance,does that cover for bracess or do I pay half?...


 ok.......who in here has had braces?? I have a question.....................................?
Ok. I wanted to know, if it's true about retainers that if you dont wear them for a long time, that they will go back,to where they use to be before even of they pulled out 4 teeth?? and also H...


 i am trying to find a dentist in hot springs, arkansas who accepts arkids 1st?
i have a child of 5 who needs one of his teeth capped. he has to be but under....


 Why are some dentists still not using healozone in their dental offices?
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 how many microorganisms have in the mouth?
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 what are the symptoms of dental phobics?
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 Permanent Retainers and Tooth Whitening?
I have just begun whitening my teeth using Crest Whitestrips. I also have a permanent retainer afixed to my lower teeth that has been there for nearly three years. Since beginning the treatment three ...


 how to treat Pericoronitis?
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 Bleeding smoke deposits?
Bleeding is coming from teeth I smoke earlier so there are deposits gone to a dentist he told for scaling is it good for ...


 Hard white things pop out of my tonsils. What are they and why do they smell so bad?
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 Teeth treatment?
what are the cures for exterminating the noises someone's making with their teeth while sleeping?...


 I am lookinf for a dentist for my 15 yr old for removal of wisdom teeth. he is on medicaid insurance ..please
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 i broke my tooth, can't afford dentist. I haveno pain. What can i do to fill in the missing 4th of my tooth?
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 Why do some people have to wear those rubber band things that hook onto their braces?
What exactly does it do for the teeth?...


 what is teeth whiting product that you can buy over the counter that is cheap?
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 What are some ways to organize things in a dental office?
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scsd126jdw 		How does a Sonicare toothbrush charge with no metal connection points?
How do electrons pass through the plastic in the handle to charge the batteries inside? I'm sure it has to do with magnets or something, but I would like spacifics.
                      









Mike Johnson
You are on the right track. It relies on inductive charging:
<quote>
If you own an electric toothbrush, there's a good chance that it has a completely sealed toothbrush unit. The toothbrush rests on the charger without any metal contacts to connect the toothbrush to the base. This has the great advantage of allowing the toothbrush to be completely sealed so that water cannot enter through exposed contacts. It also avoids any problems with water getting into the contacts and shorting out the charger.

This sort of sealed arrangement is called inductive charging. Essentially, the toothbrush and the base form a two-part transformer, with the base having one part of the transformer and the toothbrush having the other. When you slide the toothbrush onto the base, the complete transformer is created and charge can flow.

The base contains one of the coils and the metal bar. The toothbrush contains the second coil. When you drop the toothbrush onto the base, you create the complete transformer!
</quote>


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