Instructables

Convert A-series Sonicare toothbrushes to use E-series heads

Sonicare toothbrushes rock. I was skeptical, but after buying one I'll never go back. I bought an A-series about 4 years ago. My only real complaint was that the head was a little bulky and the inside of the head was hard to keep clean. Then the Elite series (E-series) came out. It promised better maneuverability and increased cleanliness. I was a bit pissed when I found that my toothbrush wasn't compatible with the new heads.

My wife bought an E-series and I decided to try and make its head fit my brush. To my surprise, there wasn't much alteration needed and my Frankenstein toothbrush works better than my wife's.

The E-series heads are much lighter than the A-series. If you look at the the bases next to eachother, the A-series base is a little larger than the E-series. I think the A-series base is a little more powerful in order to compensate for the difference in brush mass. My A-series base running an E-series head is quite a bit more powerful than my wifes E-series set.

Booya. Saved money and got a superior toothbrush.
 
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Step 1: Buy an E-series head

Trust me, you'll be able to do this conversion. Your hard earned money won't be blown on buying the head.

If you don't own any tools, I would recommend that you buy a small carving chisel to gouge with. I just used a typical utility knife. The job wasn't as pretty as it could have otherwise been, but it worked.

The reason you should buy the head first is evident in the next step.
maudb1 year ago
I had my A-series Sonicare stolen, and had a couple of extra, unused brush heads that I never threw out even after I replaced it with an E-series brush. (too painful!). I was looking up to see how much I could maybe sell them for when I found this. After some carving, I got those A-series heads to fit my E-series. Thanks so much!
neenamc2 years ago
Hey! THX...I have the original Advance a4000 model...still works super. But, since I haven't been able to find the HX4002 for a year or TWO, will try your recommendation...just couldn't bear to throw it out, OR buy a new one! With your instructions, definitely looks like something I can do!
blobms2 years ago
Thanks for your post I am gonna try it out.
I was looking at buying a single a-series head for $20+ shipping. Yikes!!
With your courageous post I am gonna get a $10 e-series and whittle away.
-Cheers
bcarey32 years ago
YOU RULE!!! I never thought I would need or hear of a freakin' toothbrush hack..but I do need it...thank you for taking the time to post this! i'm on my way out to get a chisel!
"my Frankenstein toothbrush works better than my wife." lol. freudian typo.
Freudian slip:
When you mean to say one thing and you say your mother. I mean another.
sm007thie (author)  rhesuspieces005 years ago
Yowzers. Wow. Good catch. I better fix that one STAT :-)
sm007thie (author)  sm007thie5 years ago
...and fixed
That would've been better if it had originally said... "works better FOR my wife".

*snicker*
Just a heads up, i have an old original sonicare brush and bought some e series heads today at walmart for it. I found out these new e series heads no longer have the notch and screw directly onto my old sonicare without any modification! And yes, they vibrate WAY more than the original ones, i can't wait to try em tonight.

Box of 2 heads was $35 canadian, box says fits Essence, Xtreme, Elite, Advance. model HX7002.
ronzogonzo5 years ago
I recently made this replacement head for my sonic toothbrush with a toothbrush I got for 2/$1.00! This is a CareOne brush and I cut it with a hacksaw at the meatiest part of the handle and then the hardest part was drilling a hole up the center of the shaft. I started by drilling a small pilot hole with a 1/16 drill bit and then a 5/32 bit but that is a judgment call depending on your brush. You just want to be sure to drill a little smaller than the shaft for a snug fit. Works great!
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druderman6 years ago
I'd love to splice any decent over-the-counter manual toothbrush onto an old Sonicare head and save myself $15 a pop. Anyone care to collaborate on such a project?
sm007thie (author)  druderman6 years ago
I don't think that's possible to any useful degree. The heads wear out for two reasons 1.) Obviously the bristles get worn and 2.) The internals of the head wear out. If you have a sonic toothbrush, you'll notice that over time it doesn't vibrate with quite the same pizazz. I think the only feasible project would be to adapt cheaper sonic toothbrush heads to fit a sonic care base. I'd be willing to give that one a go for sure. Now let's see, who makes the cheapest sonic toothbrush heads...?
My brush is the Sonicare Advance - the chunkier model. I find the powerful magnets in the toothbrush come in handy. And unfortunately they move around quite a bit and often require adjustment. My idea is to remove the plastic on the metal shaft and then heat up a regular brush and melt it in place on the shaft. Ether that or somehow put some threads on there, so you can screw a new head in place. I have a feeling the tension in the metal shaft doesn't quite wear out as fast as you think.
Great Instructable. I am too a big believer in the sonicare. It's near impossible to switch back to a normal toothbrush once you start using this bad boy. And to think, I was about to drop another 100 bucks on the E-Series. Thanks man.