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30 Years of Enamel Matrix Derivative (EMD): Biological Foundations and Systematic Review With Meta-Analyses Across
Richard J Miron1, Nima Farshidfar1, Yu-Kang Tu2,3,4
1Department of Periodontology, University of Bern, Bern, Switzerland.
Enamel matrix derivative (EMD) effectively promotes periodontal regeneration in intrabony defects, showing significant improvements in probing pocket depth and clinical attachment level. Further research is needed to clarify its role in other periodontal conditions like recession and furcation defects.
Area of Science:
- Periodontology
- Regenerative Medicine
- Biomaterials
Background:
- Enamel matrix derivative (EMD) has been used for over 30 years in periodontology.
- EMD mimics biological processes of root development to promote periodontal tissue regeneration.
- Preclinical studies show EMD induces new cementum, periodontal ligament, and alveolar bone formation.
Purpose of the Study:
- To systematically review the efficacy of EMD across multiple clinical indications in periodontology.
- To analyze clinical outcomes of EMD in nonsurgical treatment, intrabony defects, furcation defects, and root coverage procedures.
- To assess the biological foundations and clinical applications of EMD.
Main Methods:
- Systematic review and meta-analysis of randomized clinical trials (RCTs) up to April 15th, 2025.
- Inclusion of RCTs based on specific criteria, with independent screening and data extraction.
- Risk of bias assessment using the Cochrane Collaboration's RoB2 tool.
Main Results:
- EMD demonstrated superior outcomes in intrabony defects, improving probing pocket depth (PPD) reduction and clinical attachment level (CAL).
- EMD combined with bone grafts showed limited additional benefit, except for xenografts enhancing CAL gain.
- Non-resorbable membranes outperformed EMD in PPD reduction; EMD showed modest, non-significant improvements in root coverage and limited evidence for furcation defects.
Conclusions:
- EMD is a biological agent with histologic evidence supporting periodontal regeneration, particularly in intrabony defects.
- Improved clinical outcomes are observed with EMD in regenerative surgery for intrabony defects.
- Further high-quality RCTs are required to define EMD's role in nonsurgical periodontitis treatment, root coverage, and furcation defects, and to optimize its application protocols.
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