When Purchasing Electric Toothbrushes, Check Information, such as Quality, Maintenance Expenditure, etc.

■ Some products showed relatively lower quality of finishing brush

○ The quality of 7 products among testing goods showed higher level than 'average', but 'sonic care(healthy white HX6731)' and ‘Panasonic(EW-DL82)’ had relatively lower quality levels.

■ Noise level of moving products by round trip was relatively high

○ Noise level of ‘Arm & Hammer spin brush(pro-whitening EX Soft)’ and ‘Oral-B(cross action power anti-bacteria toothbrush)’, the moving products by round trip showed 61 and 59 dB respectively, relatively higher than other products.

■ Different indicating ways of frequency by enterprise

○ Some enterprises indicated the frequency for round trip, but others showed it for one-way.

- As a result of testing the frequency of products which indicated 31,000 times by round trip, it turned out that the number of frequency was about 16,000 times.

■ Switching costs of toothbrushes have a gap among products, up to 4 times

○ When changing toothbrushes 4 times a year, the distribution of switching costs of toothbrushes is 8,200 KRW(Tesco : Pro-tech electric toothbrush) ∼ 33,070 KRW(Sonic care : healthy white HX6731), showing a gap among products, up to 4 times. Moreover, A/S costs of the charged products are high because the whole machine should be changed, when switching rechargeable battery.