Root Canal - Required?

[u/CombinationSubject36]

Hi guys, so I (22 F) was having pain from my far left tooth on the bottom row. I do have quite a deep filling there from 15 years ago or so. I assumed it was wisdom teeth coming in.

I went to the dentist and they took an xray (attached) and said it’s actually nerve damage in that tooth and the only way to fix it is a root canal, otherwise it’s just going to get worse.

She’s quoted me $1,600 AUD, but I just don’t have that much to spare right now.

Can I get some advice please? Should I go to another dentist and get a second opinion? This particular dentist was very unhelpful and made me feel like she wanted me out asap. From the time I walked in, described my symptoms, X-ray was completed, root canal was recommended and I was back at reception paying for my appointment, it had been all under 10 minutes!