Diagnosis

Periodontal disease is diagnosed by your dentist during a periodontal examination, which should be a regular part of your periodontal maintenance schedule.

A periodontal probe (small dental instrument) is gently used to measure the sulcus (pocket or space) between the tooth and the gums. The depth of a healthy sulcus measures three millimeters or less and does not bleed. The periodontal probe helps indicate if pockets are deeper than three millimeters. As periodontal disease progresses, the pockets usually get deeper.

Your periodontist will consider their measurements of pocket depths, amount of bleeding, inflammation, tooth mobility, etc. to decide whether one of the following diagnoses are applicable to you:

Gingivitis

Gingivitis is the first stage of periodontal disease. Plaque and its toxic by-products irritate the gums, making them tender, inflamed, and likely to bleed.

Periodontitis

Plaque hardens into calculus (tartar). As calculus and plaque continue to build up, the gums begin to recede from the teeth. Deeper pockets form between the gums and teeth and become filled with more bacteria and possibly pus. The gums become very irritated, inflamed, and bleed easily. Slight to moderate bone loss may be present.

Advanced Periodontitis

The teeth lose more support as the gums, bone, and periodontal ligament continue to be destroyed. Unless treated, the affected teeth will become very loose and may be lost. Generalized moderate to severe bone loss may be present.