Do I really need a root canal? I have no symptoms except a cavity...?!

Do I really need a root canal? I have no symptoms except a cavity...?

I just went in for an initial appointment with a new dentist today, who took some x-rays and told me I needed a root canal on one of my back bicuspids. However, this was a surprise to me because I am not in pain at all, there is no swelling or sensitivity, and I have not noticed any problems with this tooth. The x-ray showed a deep cavity, but it was not touching the root, and the root is not infected or anything either. Is this dentist just trying to swindle me out of an extra $900?

Also, can anyone explain what the difference is between resin and amalgam fillings, and why resin ones cost so much more?

I am definitely going to get a 2nd opinion before committing to any work with this dentist, but curious if anyone has had a similar experience needing a root canal with no physical symptoms.

Thanks!

RT

For my 2 cents worth, I have had half a dozen root canals and I definitely knew when I needed one. Get a second opinion.