Periodontal Probe Exam
If you have “Bleeding Gums” you may be at risk!
The primary purpose of a periodontal probe is to measure pocket depths around a tooth in order to establish the state of health of the periodontium.
Proper use of the periodontal probe is necessary to maintain accuracy. The tip of the instrument is placed with light pressure of 10-20 grams into the gingival sulcus, which is an area of potential space between a tooth and the surrounding tissue. It is important to keep the periodontal probe parallel to the contours of the root of the tooth and to insert the probe down to the base of the pocket. This results in obscuring a section of the periodontal probe’s tip. The first marking visible above the pocket indicates the measurement of the pocket depth. It has been found that the average, healthy pocket depth is around 3 mm with no bleeding upon probing. Depths greater than 3 mm can be associated with “attachment loss” of the tooth to the surrounding alveolar bone, which is a characteristic found in periodontitis. Pocket depths greater than 3 mm can also be a sign of gingival hyperplasia.
The periodontal probe can also be used to measure other dental instruments, tooth preparations during restorative procedures, gingival recession, attached gingiva, and oral lesions or pathologies. Bleeding on probing even with a gentle touch, can also occur in this situation. It is due to the periodontal probe damaging the increased blood vessels in the capillary plexus of the lamina propria, which are close to the surface because of the ulceration of the junctional epithelium.
The presence of bleeding is one of the first clinical signs of active periodontal disease in uncomplicated cases and should be recorded per individual tooth and tooth surface in the patient record. However, in patients who smoke, the gingival tissue rarely bleeds because of unknown factors that do not seem related to dental biofilm and calculus formation.
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Dr. Noushin Adhami D.D.S