The exact cause of hypomineralisation is not always clear. It is believed to occur during the first few years of life, as the adult teeth are forming beneath the gums. Potential contributing factors may include:
- Childhood illness or high fevers
- Premature birth or low birth weight
- Environmental or genetic influences
- Nutritional deficiencies
- Exposure to certain medications or toxins during early development
It is not caused by poor brushing or diet, and it is not the fault of the child or parent. However, the condition does mean that the affected teeth are weaker and more vulnerable than normal enamel, so they require extra care and attention.