Electric toothbrush

[WussRedXLi]

Those who want to do dental scaling, but finds ultrasonic too messy can use this.

https://www.amazon.com/gp/product/B008YEMWOG/ref=ox_sc_act_title_3?ie=UTF8&smid=ATVPDKIKX0DER&th=1

I find that it's even harder to do manually for any layman and increases the risk of hurting yourself. Coz you'd need to use some strength as well. I tried before and told myself "forget it man, just wasting time and risking it big time only" that's why i just went ultrasonic.

If you start first with low power on ultrasonic, it's rather difficult to screw anything up as you learn.....but make no mistake the learning curve is probably way beyond those who have difficult in using a water flosser.
Heck, as you have read there are even some rare instances in which they can't learn to use an electric toothbrush properly). And make no mistake, even then it's mostly for supragingival stains and calculus, though you probably can get away with clearing away most interproximal calculus and till around 2-3mm subgingivally.

eg i fixed myself a small area/line of darkened gum line with ultrasonic scaling. And anyway mine wasn't so jialuck.... but this is just for reference (not my teeth )

Besides in order to adapt to all the tooth surfaces properly with manual, you'd need quite a few whole gracey curette set.


PS. But if one is just aiming to remove surface stains due to coffee, red wine or tobacco use, then an ultrasonic does it very easily and effectively. Absolutely no issue for most laypersons to DIY, just learn how to adapt it to the tooth surfaces (lingual and buccal surfaces) via the lateral sides of the ultrasonic tip, which is seriously takes just 10 seconds to learn in this case. Piece of cake. 1 tip is enough and you don't need built-in LED. ie it's just a S$100 investment from TB.
I had a colleague who spends good money to remove such stains every quarterly.

 

[yuri2]

Careful of burning it out within a few seconds man........if the LiFePO4 cell is one of those good ones with superbly low internal resistance (ie very little voltage sag).

Still working.
That's why I quickly discharge it by using in the Pana.
Now, it drops to 3.3V.
Thanks for the intro to LiFePo.

 

[WussRedXLi]

Still working.
That's why I quickly discharge it by using in the Pana.
Now, it drops to 3.3V.
Thanks for the intro to LiFePo.

On second thoughts, i guess it's still pretty safe even with an overcharged LiFePO4, which is easily possible if you have one of those chargers that you can switch between 3.7V LiCo and 3.2V LiFePO4. The over-charged voltage is only during open-circuit multimeter measurement, it drops almost instaneously once under you discharge and start to use it.

But i still believe a 3.7V LiCo 14500 (AA size) cell can easily burn it out esp if it's those brand-name ones that can sustain high currents/low internal resistance, or the IMR Lithium manganese cells. So don't use those.

The terminating charge voltages are 4.2V and 3.8V respectively. Anyway next time if you accidentally over-charged it in the 3.7V (4.2V end) setting, don't worry....can discharge it in a 14500 flashlight or just leave it to rest, the voltage would drop very fast.

LiFePO4 is very safe, as you can see. It won't exactly damage the cell if you do this occassionally. A LiCo would have vented liao, eg if you use a hobby charger and override the limits accidentally.

Just a tip for those who wants to overvolt other similar devices as well.
You bought it from TB or one of those hobbyist flashlight/RC sites?

 

[yuri2]

You bought it from TB or one of those hobbyist flashlight/RC sites?

Bought from aliexpress.
https://www.aliexpress.com/item/Fac...um-rechargeable-battery-with/32536136921.html
Came with 4 short (dummy) batt to complete the circuit.
It was delivered inside of 4 torchlights. At first I thought it was a wrong shipment.

 

[WussRedXLi]

Just now just did a quick test - seems like my old Eneloops really cannot make it in such high current apps liao. Those Eneloops are about 4 years old and i had been using and rotating them in my Nikon SB900 flashgun during wedding/D&D event shoots (about 20-30 shoots per year nowadays).

My Amazonbasics 2100 LSD are still quite new, they perform noticeably better/faster in the Panasonic oral irrigator.

The frequency to shoot for is 1200-1400 cycles per min, or 20-23 Hz/cycles per second. This in addition to the hydrostatic effect of the pulsations which disrupts biofilm and dislodges shiat.
In the various NCBI articles, that is found to be optimal, in addition to about 90 PSI pressure.

I have 1.6V NiZn as well, claimed and measured on TB to be low resistance as well (high current capable), i found it to be pretty true....... but with 2 x NiZn is a bit too fast initially before it drops down and stabilises.
Just now i mixed one pc NiZn and one pc Amazonbasics or the Eneloop. Found it to be v usable too and it could be closer to that 20-23Hz pulsation freq.

So maybe can use 1 x NiMH and 1 x NiZn as well. Don't wanna get into the details, but basically the chemistry is safe, only thing to look out for is that you'd deplete the NiZn cell first, so do charge it immediately and try not to run it down too often. But that's actually no a biggie as the TB NiZn cells (BPI) are cheap enough.

We use NiZn in our kids toys as well for more omph, eg Tomy Plarail and Thomas trains.

 

[WussRedXLi]

Bought from aliexpress.
https://www.aliexpress.com/item/Fac...um-rechargeable-battery-with/32536136921.html
Came with 4 short (dummy) batt to complete the circuit.
It was delivered inside of 4 torchlights. At first I thought it was a wrong shipment.

I see. If can help it and don't mind the trouble, get from TB. If don't mind the $$ and want less trouble, aliexpress is a good option.
Best deal packaged in a deal consisting of 4 pcs Coolook, dummy batts and LiFePO4 charger is RMB60.
https://item.taobao.com/item.htm?sp...=6f1d8f9e-05b2-438c-b534-b28098dca7d5&idnum=0

Not sure if Ezbuy Prime has such things though, but can use some Sensitive Air options like Prouter (check if they still have it) or Camilize ship for me etc.... Taobao thread.

2 x NiZn would have much more capacity of coz. But no big issue, got extra cells, just change.

For those who have the LiFePO4 3.2V decicated chargers already, can just get the batteries. RMB 15 for 2.
https://item.taobao.com/item.htm?spm=a312a.7700846.0.0.ima5eh&id=7846748909&_u=81u0hcib2b86
There are cheaper 14500 AA LiFePO4 at around RMB 6-7 each, but i find no point coz I have tested these to be legit in capacity (around 500+ mAh @ 1 amp discharge current which is pretty high at 2C, the max that i can test on my hobby charger). Of coz these are not those special A123 LiFePO4 super high current cells, which cost many times more anyway and come from ang moh land.

RMB 1 each for the dummy cell
https://item.taobao.com/item.htm?spm=2013.1.w4023-2444553048.8.fC58ZD&id=12743444720


HKJ also tested them to perform the same too. (he gunned it at 3 amps even, that's like 10 watts from the single cell....remember this is a AA 14500 size, not 18650)
http://www.candlepowerforums.com/vb...Review-of-Coolook-14500-LiFePO4-700mAh-(Black)

Additional piece of info : I think yuri2 knows, i also use the overvolted oral irrigator to clean my aircon FCUs. Very efficient and not messy due to the low water volume.
It is the aircon foam surfactant, pulsation and high water pressure that does the mold/dust clump dislodging, not pure water volume from a tap, as tested before. Yes it's a bit slow, but not overly slow, takes about 10 mins to clean the metal fins and blower (5 mins / 5 mins).

 

[WussRedXLi]

RMB 220.
8800 oscillations / min and 20000 pulsations/min.

More than enough for children's use esp with the children's head (ultra soft bristles).

https://item.taobao.com/item.htm?sp...=05d2842f-ce0d-4e12-ab95-598df72e0adb&idnum=0

Children's small head + ultra soft bristles here

https://world.taobao.com/item/544137786064.htm?spm=a312a.7700714.0.0.W1oqb8#detail

 

[WussRedXLi]

RMB 48 only.
7600 oscillations / min. No pulsations. Can use the TB heads.
Note, no charger base. So only good for those who has an existing oral B system and wants to share/use for their kids, or for those who wants a cheap ass handle so that they can use 2 toothbrushes simultaneously for added cleaning (pls remember to press lightly, else really risk over-brushing this way and risk receding gum line.

https://item.taobao.com/item.htm?sp...=8d15820d-c9e7-480f-9bae-f9fd3d84ca3b&idnum=0

 

[WussRedXLi]

RMB 195. Not bad price and don't need Amazon FSSG.
Jap version, hence not the light blue colour.

https://item.taobao.com/item.htm?spm=a230r.1.14.34.c7onIt&id=19850199508&ns=1&abbucket=11#detail

 

[WussRedXLi]

Ebay Oral B 2500 down to S$62.40 shipped.

Ebay Oral B 3000 set of 3 down to S$191.20 shipped. (S$63.73 each).

Links posted 1 page ago.

 

[WussRedXLi]

Claimed 99.9% mint Pro 500 with 2 brand new cross action heads on carousell. Pro 500 is 7600 oscillations / min and 20000 pulsations per min.
$20 only.

Performance shd be decent enough.

 

[Twiddlebug]

RMB 48 only.
7600 oscillations / min. No pulsations. Can use the TB heads.
Note, no charger base. So only good for those who has an existing oral B system and wants to share/use for their kids, or for those who wants a cheap ass handle so that they can use 2 toothbrushes simultaneously for added cleaning (pls remember to press lightly, else really risk over-brushing this way and risk receding gum line.

https://item.taobao.com/item.htm?sp...=8d15820d-c9e7-480f-9bae-f9fd3d84ca3b&idnum=0

Thanks for the reco, was looking for something for my kid as his kiddy one show signs of dying already.

 

[homedriver]

Phillips healthy white 2 for $189, good buy?

 

[kimsix]

Using the novamin toothpaste for a few weeks and i can feel it has created a protective layer over my 2 front teeth. It is worth a try for those with sensitive teeth, a product that works as advertised for me.

 

[WussRedXLi]

Phillips healthy white 2 for $189, good buy?

Best 2 set is this. Pro 690 (8800 oscillations / min , 20000 pulsations / min)

http://www.ebay.com.sg/itm/Braun-Or...554640?hash=item1a10799ad0:g:kiYAAOSwZtJW8sPK


Is more than enough. I seriously don't think there is going to much of a diff between 20000 and 40000 pulsations / min. The pulsations (sonic) is really very low in amplitude, don't think there is much fluid dynamics helping.

But this pulsation physical movement might make difference in helping the oscillations clean better, but that's just a guess from my part. Coz it is pulsating in another direction that is totally different from the 16 + 16 deg (32 deg total) circular oscillations. So i guess in this area it's helping a bit as a secondary effect.

 

[WussRedXLi]

Using the novamin toothpaste for a few weeks and i can feel it has created a protective layer over my 2 front teeth. It is worth a try for those with sensitive teeth, a product that works as advertised for me.

Better when eating ice-cream now?

 

[kimsix]

Better when eating ice-cream now?

Yep, last time even normal brushing over them will feel some pain. Now i feel a layer for my teeth.

 

[WussRedXLi]

Yep, last time even normal brushing over them will feel some pain. Now i feel a layer for my teeth.

Will look out for it, just in case if i ever need it.

 

[Ender]

I just received my Pro 3000 from Qoolife. It is a local set with beste warranty card.
But different from online descriptions and whats was discussed here, is that it has 4 cleaning modes, Daily, Sensitive, Whitening and Gum Care, instead of 3 modes.

Inside my manual, it also state the 2000 has 3 modes, Daily, Sensitive and Gum Care. It seems the version Singapore has is different from other countries. It's seems our 3000's feature is like the 4000 in other countries, and our 2000 is like the 3000 in other countries in term of features.

 

[rerear]

can advise which Taobao replacement head to buy, for the Oral-B Pro 2500?

https://item.taobao.com/item.htm?spm=a1z0d.6639537.1997196601.13.nTYXwb&id=542508977930