In Year 4, we have been learning all about teeth and how to care for them. We started by exploring the different types of teeth, identifying each one’s function, and labelling them on diagrams.
We were fortunate to have received a visit from our local dental team, which included two dentists and a dental nurse. They shared valuable information about dental health care, teaching the children how to keep their teeth strong and healthy. They emphasised brushing twice daily, eating nutritious foods and drinks for example water, milk, fruits, and vegetables, and avoiding sugary and acidic items like cola and sweets. The dental team also demonstrated the correct brushing technique—moving the toothbrush in gentle circles—and the children enjoyed this hands-on activity.
To deepen their understanding, they conducted an experiment to see how different foods affect teeth. They used hard-boiled eggs to represent teeth, placing each in a different liquid—orange juice, cola, milk, and water—and observed the results over a week. The findings were fascinating:
• The egg in cola turned a dark brown colour, which lightened significantly after vigorous brushing.
• The egg in orange juice became bleached white.
• The eggs in milk and water showed no visible changes.
The students were thrilled to observe these transformations firsthand, and they gained valuable insights into the importance of maintaining healthy teeth.
