Many middle-aged and elderly people have always been troubled by this problem. Dentures are not as simple as brushing our teeth. Otherwise, if the cleaning force is not strong enough, bacteria will still breed. Now we can recommend a very good method to everyone. That is to choose ultrasonic cleaning machine < / span > < / a > < span style =" the oledata.mso - spacerun: 'yes'; The font - size: 10.5000 pt; font-family:' Song typeface '; Moreover, this method has already been certified by many friends.