Pure Baby 6-18 months. As baby starts teething (6 mos. +) place smear of toothpaste* on RADIUS Pure Baby Toothbrush. Brush gently on both the outside and inside surfaces twice daily. Brush tongue once to dislodge bacteria. Replace toothbrush when bristles look worn. At 18 months and older, switch to RADIUS Totz. Quick Tips for the Pure Baby: Visit a dentist with first tooth. Avoid juice in bottles for less cavities. Floss as soon as two teeth are side by side. *American Academy of Pediatric Dentistry.