Online Continuing Education / Course Details

ADA Credits: 2 | AGD Credits: 2 | Cost: $29.00

Biofilm, the host response and treatment in periodontal disease

Categories: Dental Hygiene, Health and Medical Topics, Periodontics

Author(s): Dr. Fiona M. Collins, BDS, MBA, MA

Course Type: Self-instruction journal and web based activity

Target Audience: Dental Assistants, Dentists from novice to advanced


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Educational Objectives

The overall goal of this article is to provide information on periodontal disease and the role of biofilm in its development and progression. After completing the article, the reader will be able to:

1. Review the role of biofilm in periodontal disease;

2. Describe the pathogenesis of periodontal disease, destructive and protective chemical mediators;

3. List and describe risk factors; and,

4. Review options for treating chronic periodontitis and their efficacy.


Periodontal disease, including gingivitis, is prevalent in the general population. Periodontal pathogens contained in dental biofilm play a central role in periodontitis; however, it is the interactions between the host and the biofilm that influence the onset and progression of the disease. Risk factors include environmental, acquired and genetic factors, some of which are modifiable risks. Initial periodontal therapy is typically nonsurgical scaling and root planing, followed by re-evaluation and periodontal maintenance. Antimicrobials may be used adjunctively, including systemic antibiotics, subantimicrobial doxycycline and locally applied antimicrobials. The use of adjuncts, where indicated, is guided by guidelines, and clinical judgment for the individual patient. The overall goal of therapy is to preserve the dentition and maintain or gain clinical attachment, and to prevent disease recurrence.


COMMERCIAL SUPPORTER: This course has been made possible through an unrestricted educational grant from ORAPHARMA.

ADA Credits: 2 | AGD Credits: 2 | Cost: $29.00

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