Please or to access all these features

Add post

Watch this thread

Save thread

Start a new thread

Flip thread

Hide thread

My feed

Active Unanswered threads

Getting started FAQ's

Unanswered threads Acronyms Talk guidelines

Hide shortcut buttons

Talk

General health

Mumsnet doesn't verify the qualifications of users. If you have medical concerns, please consult a healthcare professional.

Flip

Original poster

First adult tooth discoloured

2 replies

AlfieClem · 01/11/2025 19:36

My son’s first adult tooth has come up but has a yellow mark on it! Does anyone know what this is?

OP posts:

Lollygaggle · 01/11/2025 19:45

This is MIH molar incisor hyperplasia . It’s mostly a cosmetic problem and it might appear in a couple of other teeth or no other teeth. https://www.therotherhamft.nhs.uk/patients-and-visitors/patient-information/molar-incisor-hypomineralisation

Molar Incisor Hypomineralisation (MIH) | The Rotherham NHS Foundation Trust

Molar Incisor Hypomineralisation (MIH) is a dental condition which affects the enamel (outer layer) of permanent (adult) teeth. It makes it softer than normal. It commonly affects the first permanent molars, permanent incisors and sometimes permanent c...

https://www.therotherhamft.nhs.uk/patients-and-visitors/patient-information/molar-incisor-hypomineralisation

Original poster

AlfieClem · 01/11/2025 22:48

Thanks @Lollygaggle

OP posts:

Flip