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Periodontal Maintenance and Locally Delivered Antibiotics

Periodontal maintenance does not preclude the ensuing use of locally delivered antibiotics (LDA), as needed. Areas that exhibit bleeding on probing at subsequent maintenance appointments may be considered for adjunct therapies such as LDA, but it should follow definitive instrumentation to eradicate the root cause of the problem—burnished calculus. As locally applied antimicrobial agents are only a temporary means of controlling inflammation in specific sites, the larger questions should be, “What is the reason behind pockets that aren’t responding? What is causing the chronic inflammation?”

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Eliminating the Problem

Gram-negative toxins overlying mineralized root accretions are the source of chronic inflammation. A pocket that does not resolve and continues to bleed does so because of the pathogenic bacteria held in proximity to the soft tissue by its scaffold of burnished calculus. Until the burnished calculus is removed, the site will continue to exhibit chronic inflammation. At some point, the oral health professional must consider what can be done to eliminate the problem rather than simply placing a bandage over it. The approach must consider that previous attempts to remove the offending root deposit have failed.

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Bleeding on Probing

Inexperienced dental hygienists may see bleeding on probing as a signal that patients were falling short in their efforts to perform adequate oral self-care. However, it may be that the source of the bleeding has nothing to do with their self-care and everything to do with clinical care, ie, instrumentation. Research findings of endoscopy confirm this, as the pilot study found the adequacy of self-care to be negligible to the overall improvement in probing scores and nonsurgical pocket elimination. Creating a root surface biologically compatible with health requires the removal of the mineralized scaffold for biofilm. As such, the dental hygienist’s focus must be on skillful instrumentation.

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Meeting the Challenges

There is nothing more challenging than working along fluctuating and often unpredictable root contours—blindly (unless your practice has a dental endoscope). Given the expertise required to maneuver small-bladed instruments in the periodontal space, it’s a bit of a miracle we are able to reach favorable outcomes with any certainty. Dental hygienists must approach this challenge by working smarter, not harder, in order to facilitate clinical success.

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This information is from the article Locally Delivered Antibiotics and Periodontal Maintenance by Stacy Matsuda, RDH, BS, MS. To read the article, click here.
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