The aim of this retrospective clinical study was to evaluate the treatment of intrabony periodontal defects with enamel matrix derivative (EMD) during the early stages of healing. Sixteen patients aged 38-77 years with a clinical diagnosis of chronic periodontitis were subjected to data analysis. A total of 25 teeth with various osseous defects received regenerative therapy with EMD, and were followed for a minimum of 6 months. Post-operative healing was uneventful in the majority of cases. Treatment of the intrabony defects with EMD led to a statistically significant improvement in the mean value of probing depth at 3 months compared with that at baseline (p<0.001). Mean values of attachment gain at 3 and 6 months were of clinical significance: 3.6+/-1.8mm and 3.2+/-1.5mm, respectively. Reduction in probing depth was achieved with minimal recession of gingival margin and was sustained over a time course of 6 months. A progressive increase in radiopacity, suggestive of initial signs of bone-fill, was observed by 6 months. In summary, the results suggest that treatment of intrabony defect with EMD induces favorable periodontal healing with a high level of predictability.
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