The eyes are the windows to the soul, and the mouth should be the energy source. To keep the performance of the mouth, keeping the teeth healthy is obviously very important.
Good teeth, this is a lifelong dream of being a foodie. Since the invention of the toothbrush, this dream has become a lot easier. Coupled with the route guidance of the “Papanic Brushing Method”, the toothbrush, which seems to have no technical content, seems to have little room for improvement.
The Principle, Classification and Brand
In 1954, Swiss doctor Philippe-Guy Woog invented the electric toothbrush, and Broxo S.A. produced the first commercial electric toothbrush, the Broxodent.
Surprisingly, 60 years later, the current electric toothbrush is very similar to this predecessor.
In principle, there are two categories of electric toothbrushes: rotation and vibration.
The principle of the rotating toothbrush is simple, that is, the motor drives the circular brush head to rotate, which enhances the friction effect while performing the ordinary brushing action. The vibrating type of toothbrush is more complex and more expensive in terms of price.
The vibration type toothbrush has an electrically driven vibration motor inside, which can make the brush head generate high-frequency swing perpendicular to the direction of the brush handle, but the swing amplitude is very small, generally about 5 mm. When brushing your teeth, on the one hand, the high-frequency oscillating brush head can efficiently complete the action of brushing your teeth. On the other hand, the vibration of more than 20,000 times per minute also makes the mixture of toothpaste and water in the mouth produce a large number of tiny bubbles, which are generated when the bubbles burst. The pressure can penetrate the complex dirt between the teeth.
Rotary toothbrush
The principle of the rotary toothbrush is simple, and there is only one direction of improvement in the rotation speed. Among the three toothbrush giants, only Braun Oral-B has this type of flagship product.
Braun Oral-B’s flagship product model D32 adds vibration to the rotation action, that is, the combination of rotation and sound wave. The rotation speed is nominally 8,800 rpm, and the vibration frequency is nominally 40,000 times per minute. The D32’s features don’t stop there. In addition to the wireless charging that common electric toothbrushes have, there is also a small black-and-white LCD display, which can provide a warning of excessive brushing force, a 30-second turning over prompt, and a prompt to replace the brush head, etc. .
It should be noted that some dental literatures believe that the contact surface between the rotary electric toothbrush and the teeth is cleaner, but the degree of wear to the teeth is 4-5 times greater than that of the sonic type. While brushing is all about the abrasives in toothpaste, excessive wear is not a good thing. And is the vibration and rotation of D32 a suspicion of more wear and tear? But if you’re after this kind of thorough clean, the D32 is an excellent product.
Of course, Braun Oral-B’s low-end products can also be selected, but it should be noted that the nickel-cadmium batteries used in some old models have a serious memory effect, and the number of revolutions is low due to voltage problems, so please check when choosing.
Sonic toothbrush
Philips, a small expert in pattern design, is very good at enriching its product line. In addition to the core performance and vibration frequency, it also makes its own products more expensive in terms of working mode, number of accessories, and even shape design. Not to mention the old series of products in the early years, Philips now has three series: SonicareHX9, 6, and 3.
The HX3xxx series toothbrushes are the entry-level series of Philips, and the main performance is unified at a vibration speed of 15,000 times per minute. The main series HX6xxx and HX9xxx series are unified at 31,000 vibrations per minute. The HX3 series generally has only one mode, which is to press the switch to run for two minutes. The HX6 series is more compact, waterproof and can be used in the shower, providing more than 3 cleaning modes, and a 30-second turning reminder.
Panasonic’s electric toothbrush looks very high-end. Sonic brushing can release negative ions in the mouth to sterilize, and the shape design is also high-end. But the high-end DE4x model is not sold in mainland China and costs around 13,000 yen. Low-end DW-DLx and other products also have a magnetic levitation motor, and the nominal vibration frequency is also as high as 31,000 times per minute, but there is no negative ion release function, and the price is about 500 yuan.
The cost
Electric toothbrushes have the same lifespan as normal toothbrushes, about 3 months, or replace them according to the toothbrush’s smart prompts.
In addition, please pay attention to the type of rechargeable battery your toothbrush uses, whether it is nickel-metal hydride or lithium-ion. Although the current electric toothbrush says that it can be placed on the wireless charging base for a long time, the nickel-metal hydride battery still has a memory effect that cannot be ignored. Please Charge it the right way. Of course, high-end lithium-ion batteries don’t matter, they can be charged as needed.
