Referral from dentist lol

Dentist has referred me to an oral and maxillofacial surgeon which is somewhat expensive so I would rather get a second opinion. Basically would like to know what this is and ensure if isn’t something potentially cancerous, would rather not miss a potential early diagnosis to save money but if it is something as innocent as hypercementosis (from google..) or similar, would rather not drop the cash. 2 X-rays included 1.5 year apart (only the 2nd dentist from the most recent X-ray raised concerns).