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  • Title: The potential of salivary biomarkers for predicting the sensitivity and monitoring the response to nonsurgical periodontal therapy: A preliminary assessment.
    Author: Lee CH, Chen YW, Tu YK, Wu YC, Chang PC.
    Journal: J Periodontal Res; 2018 Aug; 53(4):545-554. PubMed ID: 29882262.
    Abstract:
    BACKGROUND AND OBJECTIVE: The response to nonsurgical periodontal treatment varied among patients. This study assessed the potential of salivary biomarkers for predicting the sensitivity and monitoring the response to nonsurgical periodontal therapy. MATERIAL AND METHODS: This study recruited 34 participants with severe chronic periodontitis (the test group) and 20 participants without periodontal destruction in any teeth (the control group) from September 6, 2013 to August 25, 2017. Participants in the test group received nonsurgical periodontal therapy and were further divided into 2 subgroups of 17 low responders and 17 high responders, based on probing depth reduction. Clinical periodontal parameters were recorded, and saliva samples were harvested before and after nonsurgical periodontal therapy. Salivary biomarkers, including interleukin (IL)-1beta (IL-1β), IL-1 receptor antagonist (IL-1ra), IL-6, IL-8, platelet-derived growth factor-BB, vascular endothelial growth factor, MMP-8, MMP-9, C-reactive protein, and lactoferrin were analyzed. RESULTS: Compared with participants in the control group, participants in the test group had significantly greater periodontal pocket depth, clinical attachment level, and salivary IL-1β and MMP-8 levels, and all of these parameters were significantly reduced after nonsurgical periodontal therapy. The pretreatment levels of IL-1β, MMP-8, and lactoferrin were significantly higher in participants of the high-responder subgroup than participants of the low-responder subgroup.Based on the analysis from a dichotomous table, MMP-8 and lactoferrin showed odds ratios of 5.76, with 71% sensitivity and 71% specificity, and statistical significance (P = .02) for discriminating between the high- and low-responder subgroups. CONCLUSION: Salivary IL-1β and MMP-8 might be useful for diagnosing periodontitis and monitoring the recovery of periodontitis following nonsurgical periodontal therapy. MMP-8 and lactoferrin showed potential for predicting the sensitivity to the treatment.
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