"I just love the kids' enthusiasm; you get so much out of them.
"We're thrilled that the staff at Roslyn are on board as there are so many demands on a teacher's time."
Before the Brush-In Carkeek took the junior classes through the correct way to clean their teeth, using music and a giant set of teeth and toothbrushes for the kids to practise with.
The pupils learnt about food planting and how some of the food they eat comes from the soil, not the supermarket.
They were also told the best things to drink for their teeth are water and milk, while fizzy drinks and juices are only for special occasions.
Each toothbrush comes with a hygienic cover, which pupils can personalise by writing their names on them.
Roslyn School is the first school in the MidCentral region to take part in the programme, with Somerset Crescent School soon to follow.
Takaro Kindergarten and a number of kindergartens in Horowhenua also subscribe to Brush-In.