OT: Cavitat Scan necessary for cavitations?

[Guest guest]

Is a cavitat scan machine necessary to check for cavitations or can an

experienced dentist see them on Panoramic xrays? I am trying to choose

between 2 dentists : one charges between $1800 - $2000 per quadrant ,

uses cavitat scan; the other dentist charges between $500 - $900 per

tooth but uses only panoramic xrays to look for cavitations - and he

did find one under my extracted root canaled tooth - I was told by the

assistant that he is v. experienced in cavitation surgery.

Thanks