Evidence-based literature on periodontal prognosis due to pre-existing conditions.

Describe the tooth

What type of tooth is it?

Does the patient has diabetes (A1C levels)?

Is the patient a smoker?

How old is the patient?

What is the probing depth?

What is the tooth mobility?

Is the patient an untreated bruxer?

What is the percentage of bone loss?

Describe oral hygiene over multiple visits

What is the grade of furcation involvement?

Is the tooth an abutment for a removable partial denture?

Is the crown-root ratio satisfactory?

Is there a family history of periodontal disease?

Is the patient wearing a nightguard?

Is the root form satisfactory?