Dentist has given me awful anxiety.

Hi there, just seeking some advice after a horrific ordeal with my dentist that has triggered my anxiety disorder terribly. i went a few weeks ago due to pain in a tooth where i had a root canal and she said it was an abscess. Whilst there i told her that i had a lump by the tooth and was scared out of my mind it was cancer. she felt it for me and said she couldnt confirm whether it was or not so sent me to the hospital (radiology scan) to have a scan of my jaw and mouth. i had one of those scans that moves all round your face, i think its a 3d scan. anyway the results came back and i was in such a panic i couldnt talk to her so my partner did, he then rung me said shes informed the results are clear and now you just need to wait for the referral to have the tooth and abscess removed, i was over the moon obviously. so this all took place a couple of weeks ago and since then my tooth got worse, so i went back today to just get some more painkillers and she said "your scan came back, i think it was ok, i think it was clear" so i said what do you mean think? is it or is it not cancer? and she said "i dont think so" i was in total shock!!! Surely this scan would say whether it was something that needed to be investigated? and if she only thinks its clear why did she tell my partner it was clear? i just dont know what to think 😢 i am so sick with worry. would this scan i had show whether i have something sinister like cancer? im considering reporting my dentist because it sounds to me like she has no idea what she is doing, isnt it a medical professionals job to guarantee whether something is potentially life threatening? how can you simply say "i think its ok" and then do nothing about it?!? ive made an appointment at another dentist tomorrow for a second opinion, but im going absolutely out of my mind. the whole thing has confused me so much. if anyone knows whether the scan would show something serious id really appreciate it, thank you.