White-ish Mark covering most of one tooth

[Ema]

I have this off-white/yellow discoloration on one tooth (right canine). It covers the tip of the tooth, and stops about the middle. One dentist told me it was Fluorosis, and had no solution for me as to how to fix it, besides a veneer. I would like to hear what you guys might think it is, and how I could fix it. Opinions on MI paste?

 

[AestheticDentistry]

If you have recently noticed this white spot on your tooth, it is most likely due to plaque buildup on the tooth. This can usually be fixed with a thorough dental cleaning.

However, I would suggest visiting your local dentist to make sure this spot isn't actually tooth decay or a cavity. This could also be a result of eroded tooth enamel.

 

[drmins]

It is very unlikely that it is plaque accumulation. Chances are high for it to be due to fluorosis or a developing decay that is demineralising the enamel rods.
A composite restoration or veneer would be the treatment of choice.

Dr.mins

 

[Ema]

Thank you for the responses. I should have included that it has been like that for over 5 years.