Ultrasonic tooth cleaner (Ultraschallzahnreiniger) prevents the person from suffering from any disease that weakens their gums
clean interdental spaces (zahnzwischenräume reinigen) has no direct tips to support this go away. But, if the person searches on the net, they could realize that probably the most “achievable” cure to remove tartar is bicarbonate. Even though this is not entirely real given that preparing soft drinks only will help whiten the tooth a