Morgan and his family came to Dunedin from Greymouth for the science festival, and got hands-on to look at the shapes and sequences of teeth at the "Dental Detectives'' workshop.
The workshop was run by second-year University of Otago students studying towards a bachelor of oral health.
One student, Phoebe Chiu (19), said the workshop was important because it "broke it down so [children] are not scared of the dental environment''.
The workshop included five stations which looked at different things surrounding tooth science and dental practices.
The festival runs until Saturday.
- Eilish Maddock