Canker sores, also known as mouth ulcers, or aphthous stomatitis, can form on the gums, inner cheeks and lips (anywhere inside of the mouth). Canker sores, while annoying, are common, and usually heal in a week or two.
The length of time that doctor's offices need to keep records varies by state. 5 years is a common requirement. Explanations of benefits (EOB's) are sent by the insurance companies to the patient, not to the doctor's office. 4/11/13- Actually, insurance companies send EOB's to both entities, patient and doctors.
So, medical EOBs can be useful for: 1  Creating (or re-creating) a health history for yourself or someone under your care. 2  Documenting billing errors â or even fraud. 3  Ensuring that you are receiving the full insurance benefits to which you are entitled. 4  Proving that youâve met your annual deductible, if your health insurance policy has one.