Gum decease?

I’ve had gum decease for years now, I was informed a few months ago while meeting a new dentist for a emergency check up from a infection caused by the decease. I’ve been going to the same dentist since, I was a baby and was not once suggested I had a decease. I’ve been in extreme pain from it and feel as it was... show more I’ve had gum decease for years now, I was informed a few months ago while meeting a new dentist for a emergency check up from a infection caused by the decease. I’ve been going to the same dentist since, I was a baby and was not once suggested I had a decease. I’ve been in extreme pain from it and feel as it was ignorance on their part.
Can I take action for this, against them?
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