Ndani ali ndi mtundu wa oral b? Oral-B ndi mtundu wa zinthu zaukhondo wa m'kamwa, kuphatikizapo tsuwachi, zotsukira mkamwa, ndi zotsukira mkamwa, zomwe zakhala zikugulitsidwa kwa zaka zoposa 60.Mtunduwu unakhazikitsidwa mu 1950 ndi Dr. Robert W. Hutson, dokotala wa periodontist, yemwe anatulukira mswawachi wokhala ndi zofewa, zopangidwa ndi bristles ...
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