Hypomineralisation (hypomin)
Hypomineralisation is a developmental dental defect where the outer layer of the tooth (dental enamel) is formed with less mineral. As a result, the enamel may appear discoloured or have crumbly areas. While this is not dental decay, this weaker enamel is more likely to be sensitive, break down or become decayed. Hypomin commonly affects the back adult molars, but can happen in any baby or adult teeth.
Causes of hypomin
It can be difficult to pinpoint why hypomin happens. Factors such as high-grade fevers or respiratory tract infections during childhood could have impacted the development of tooth enamel. Or, it could be more complex, with several factors at play.
While hypomin cannot be prevented or predicted, there are steps we can take together to support these teeth.
What hypomin looks like
Hypomineralised enamel can range from mild to severe. The colour can vary from creamy yellow or brown, to patches that are 'extra' white in appearance.
There may be broken away areas or areas where there is no enamel.
Looking after hypomin teeth
Every hypomin case is unique, so your dental professional will discuss the best options for you. If treatment is necessary, it may include one or more of the follow for the affected teeth:
- fissure sealants or preventative coatings in mild cases
- white fillings or stainless steel crowns for baby teeth
- referral to a hospital for the removal of severely affected adult teeth that are unlikely to improve over time.
We can help protect hypomin teeth by brushing 2 times a day with fluoridated toothpaste (at least 1,000ppm). Another product that can be helpful after brushing at night time is GC Tooth Mousse Plus or a sensitive toothpaste.
It is important these teeth are checked regularly by your dental professional. Your child may need a 6-month follow up.