Panasonic Oral Irrigator EW-DJ10-A
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List Price: Our Price: $28.24 You Save: $21.75 (44%) Availability: Usually ships in 1 to 2 months Category: Health Care See more product details |
Panasonic Oral Irrigator EW-DJ10-A Details
Manufacturer: PanasonicBrand: Panasonic
Release Date: 2009-10-18
Model: EW-DJ10-A
Product features:
- Effectively cleans debris between teeth
- Gentle on gums
- Waterproof and washable
- 1600 pulses per minute
- Cordless and portable; easy to use
- 2 Speeds
- Cordless
- Portable
Customer Reviews of Panasonic Oral Irrigator EW-DJ10-A
Customer Review: Supercharged with NiZn batteries
Summary: 5 Stars
I use the Waterpik Ultra Water Flosser at home to clean my teeth, but for cleaning my teeth at work after lunch, or for those times when I'm travelling, this Panasonic Oral Irrigator can't be beat. The reservoir chamber is small, yes, but it can be easily refilled. I fill it twice for each use -- once for my lower teeth, and once for my upper. I also add a liquid "soap" to the reservoir -- a mixture of mouthwash and toothpaste (the toothpaste is liquified in the mouthwash). So far the irrigator has had no problem pumping this "soap".
I purchased mine about 8 months ago and started by using two, AA alkaline batteries. The irrigator was good at removing food, but not perfect -- I had to use the Waterpik at home to get rid of the deeper stuff (including the plaque stuck just under my gumline).
Despite the warning against using rechargable batteries, I went ahead and starting using NiMH rechargeable AA batteries, but I noticed the unit wasn't pumping as hard as with the alkaline, and so I had even more difficulty getting the daytime plaque removed.
I decided I needed more voltage. I purchased a lithium-ion 14500 battery (very close in size to a AA, but the nubby tab is reduced in height). That comes out of the charger at 4.0 volts. Couldn't use two of those, so I made a dummy battery out of a #10 bolt, #10 washers, and fasteners (to keep the washers attached) and ground the dummy battery down to size. That made the irrigator too powerful, and I felt like my gums were being laser-cut away. Also, the lithium-ion battery started to fade after about 20 seconds (the power of the irrigator went down). To get the lithium-ion voltage down, I made another dummy battery but with two bolts connected to a central plastic tube and two diodes in parallel (taken from an old AC adapter) to reduce the voltage -- it connected the two bolts together. They reduced the voltage by 0.3 volts, and after trying again, the irrigator no longer felt like it was cutting my gums away, but the diodes would heat up, and the 14500 li-ion battery would fade as before, plus that battery would only get through two days of lunch cleaning before it needed recharging (I could use the NiMH batteries for two weeks without problem).
My recent attempt now is using PowerGenix NiZn rechargeable AA batteries. They are advertized at 1.6 volts, but I measured them out of the charger at 1.8 volts. Now the irrigator is at the same pumping power as the li-ion battery was with the diodes, but the NiZn batteries don't fade, and no more hand-making dummy batteries. Time will tell how long the NiZn batteries will last, but so far they are the best match with this oral irrigator.
Oh, I should mention the irrigator is also great for returning to work after a dental visit. On low setting, I use it to flush out all the old amalgam bits the dentist left in my mouth.
UPDATE 3/12/2010
The NiZN batteries, while performing well in the Panasonic irrigator, have resulted in a little too much pressure in the long term. The increased water pressure has forced an opening under my gumline between two front teeth causing bleeding. I'm now using one NiZN battery with a Duracell low-self discharge NiMH battery. This has reduced the pressure enough to stop cutting open the gumline in the one spot while giving enough pressure to effectively clean my teeth and gums. I think ultimately this irrigator would do better with a strength setting from 1-10 much like the Waterpik's plug-in model, then I wouldn't have to experiment so much with different battery combinations. Despite all of my high-voltage experiments with this irrigator, it has held up and continues to run fine.
Description of Panasonic Oral Irrigator EW-DJ10-A
Oral IrrigatorOral Irrigators & Power Flossers
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