Sonicare toothbrush

Here's a gift idea that I can recommend from my own personal experience - a Sonicare Elite 7300 power toothbrush.  After doing a lot of research, this seemed to do the best job of cleaning tooth surfaces and gums gently.  It uses an advanced sonic technology that sends high speed vibrations through the water in your mouth to clean areas that the brush can't reach directly.  And with the sonic technology, you don't have to brush very hard, which is better for your tooth enamel and gums.  The toothbrush feels a little funny at first - a bit ticklish - but you soon get used to it and your teeth feel great afterwards.

It comes with a 2 minute timer to help you make sure you're spending enough time brushing (though my dental hygenist recommends brushing for at least 2 minutes - up to 3 minutes.)  It comes with a nice charger which looks just like a stand (no actual plug needed for the tooth brush) and a travel case.  I've found that the brush holds a charge for 2 weeks so you can take it on vacation without the charger.

Amazon sells the Sonicare Elite 7300 for $99.99, which is pretty competitive within the price range for higher-end electric toothbrushes.  Replacement heads cost $19.88 for two, and you should replace them every 6 months.  The sonic vibrations actually slow down gradually over time as the head wears down so it's important to replace the head on a timely basis to maintain cleaning effectiveness.