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The Globe Tests

Brush your teeth the high-tech way

Products jockey for a place in your mouth with a variety of gee-whiz features. Ultrasound, anyone?

Email|Print|Single Page| Text size + By Kytja Weir
Globe Correspondent / April 27, 2008

While brushing their teeth, many people scrub too hard, damaging their gums. Or, they don't brush long enough, missing the nooks where cavities grow.

Enter the power toothbrush, which does all the work for you.

The Globe tested five of the top toothbrush brands - Waterpik, Ultreo, Philips Sonicare, Oral-B, and Cybersonic - to determine which performs the best. The devices, which range in price from $59.95 to $179, feature technologies ranging from rotating bristles like those used in the dentist's office to "harmonic resonance" and "ultrasound waves." Each is competing for a slice of the $5 billion toothbrush market.

None of the models the Globe tested has received - or even sought - the American Dental Association's Seal of Acceptance. Clifford Whall, who directs the program, said companies pulled out because the ADA requires specific scientific data and limits the claims they can make about their products - and their competition.

Each brand claims to be better than the next, sometimes to the objection of rivals. In fact, Oral-B's parent company, Procter & Gamble, is suing Ultreo over its advertising that claims its ultrasonic waves help the brush clean beyond its bristles.

Whall said, "There's nothing to show power brushes are better than manual."

They also can be an expensive habit, because as with razors or printers, the cost of replacement parts increases the overall expense. Brush head replacements can go for up to $20 a pop. The units also require electricity, an economic and environmental cost.

The biggest benefit of power brushes is that they can help users clean their teeth for two full minutes, which is what Whall calls a good guideline for proper dental care yet is longer than most people brush manually. All models tested remind users when to switch to a different section of the mouth. And they all left teeth feeling clean and smooth. So, the main difference we found was cost.

The Oral-B Triumph, which costs $149.99, spins its round head like those at a dentist's office. It also comes with a separate but redundant "SmartGuide" screen, which Oral-B spokeswoman Elizabeth Ming said helps brushers learn visually. It times the brushing, cues when to switch to a different area of the mouth, and beeps if the brusher bears down too hard. But the brush already marks 30-second intervals on its own and the screen's smiley face at the end seems condescending.

The Sonicare FlexCare boasts the most bells and whistles, and the biggest price tag at $179. The brush runs a standard two-minute cycle but can be set for shorter, longer, or a massage setting. Still, it is the trimmest model, which makes it good for travel. It also has the most intense, tickling vibrations. But the accompanying UV sanitizer to clean the brush heads seems an unnecessary expense since it doesn't save buyers from needing replacement heads every three months.

The Waterpik Sensonic Professional, which retails for $79, wins our vote for best value as it boasts few frills with just two settings but remains easy to use.

Or you could just save some cash, buy a two-minute egg timer and stick with the old-fashioned nylon-bristled brush. Just don't brush too hard, no matter which kind you use.

WATERPIK SENSONIC PROFESSIONAL $79.99

Pros: This model offers two speeds.

Cons: It's sold only at dentists' offices or online.

Final word: It works by using a vibrating brush head. It's the best value, skipping some of the extras that drive up cost.

CYBERSONIC $59.95

Pros: There are free replacement heads by mail, but shipping is not included.

Cons: Worst feature: Doesn't have much power or any setting options. Doesn't shut off automatically.

Final word: It uses "harmonic resonance," which the makers claim makes it the world's fastest toothbrush. It's a cheap model that doesn't have much juice.

ORAL-B TRIUMPH WITH SMARTGUIDE $149.99

Pros: This model has a helpful battery-level indicator.

Cons: It's the hardest to assemble because of its SmartGuide screen, which cues when you brush too hard. It also doesn't turn off automatically.

Final word: The round head spins and oscillates like a polisher in a dentist office. Great brush, but do you really need a smiley face to reinforce when you brush right? The separate SmartGuide screen also seems to add unnecessary cost.

ULTREO $169.99

Pros: It chimes a tune when it's time to switch to a different part of the mouth. This model is gentle and quiet.

Cons: It has the most expensive replacement heads, about $20 each. And they are fragile. Ours shattered after only a short tumble from the edge of the sink into the basin.

Final word: This model uses sonic vibrations and ultrasound, which shoots out from a bump in the brush middle called a "waveguide." It's good for those who find other models too intense. But it's a pricey model with pricey parts.

PHILIPS SONICARE FLEXCARE $179

Pros: It has the slimmest brush and offers options for quick, long, and massage brushing.

Cons: It has the most intense tickling feeling, even before it ramps up to full force after the first 14 uses.

Final word: It uses a sonic vibrating brush head. It has a great brush, but the attached UV sanitizer unit to clean brush heads doesn't seem necessary since the heads need to be replaced anyway. A cheaper model might be better.

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