Your Guide to Understanding Molar Incisor Hypomineralisation (MIH)
Molar Incisor Hypomineralisation, or MIH, is a condition that affects the tooth enamel.
This happens during tooth development if the enamel did not develop and harden normally. This could show up as white, cream, yellow or brown patches on the affected teeth. About 1 in 10 children1 in Singapore experience varying severity of MIH.
Figure 1. Pictures of teeth affected by MIH as highlighted by the black arrows
Figure 2. Types of teeth most frequently or occasionally affected by MIH
Effective toothbrushing with 1450ppm fluoridated toothpaste twice a day will help to prevent tooth decay
Dietary habits that cause tooth decay usually involves frequent high-sugar intake. Choose whole foods instead of processed, sweetened foods whenever possible.
There is no confirmed single cause of MIH. It is not shown to be due to lack of nutritional calcium.
Other factors may include genetic predisposition, illness, medication in children below 3 years old.
Applying a protective sealant on mildly affected molars
Fillings for affected teeth with cavities
Possible extraction of severely affected molars before 12 years old
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1 Data derived from JJ Ng, et al. Int J Paediatr Dent. 2015 Mar
This article was last reviewed on
Thursday, September 29, 2022
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