Aim: To analyse change in selected bone markers in peri-implant sulcus fluid (PISF) sampled before treatment and after 12 months and test correlation with change in disease progression.
Materials And Methods: Peri-implant sulcus fluid was sampled from 32 patients in a randomized, clinical study comparing peri-implant defect re-construction with or without porous titanium granules. Matrix metalloproteinase 8 levels were measured using the Quantikine Human Total MMP-8 (DMP800) ELISA. Multianalyte profiling of the level of bone markers [interleukin-6, osteprotegerin (OPG), osteocalcin, leptin, osteopontin, parathyroid hormone, tumour necrosis factor-α, adiponectin and insulin] was performed by Luminex using Human Bone Panel IB. Changes in bone marker levels were compared and correlation with clinical findings was tested.
Results: No differences in clinical parameter or bone marker levels between test and control group were found. When comparing bone marker levels irrespective of treatment allocation between baseline and 12 months, a significant reduction in total protein, matrix metalloproteinase -8, interleukin-6, OPG, leptin and adiponectin were demonstrated. Positive correlations were found between the reduction in interleukin-6 (r = 0.43), insulin (r = 0.38) and matrix metalloproteinase-8 (r = 0.47) concentration, and probing pocket depth reduction.
Conclusion: Peri-implantitis surgical treatment induced some reduction of the studied bone markers. Conclusive evidence for correlation between change in bone marker concentrations with disease resolution was not found.
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