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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

Publication:
May 2012
Volume 43 , Issue 5

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Regenerative wound healing in acute degree III mandibular defects in dogs

Nikos Mardas, DDS, MS, PhD/Michael Kraehenmann, Dr Med Dent/Michel Dard, DDS, PhD

Pages: e48-e59
PMID: 22536596

Objective: To evaluate the healing events in degree III furcation defects in dogs following the application of the combination of an enamel matrix derivative with a biphasic calcium phosphate (Emdogain Plus). Method and Materials: Seventeen degree III furcation defects, 5 mm high and 4 mm wide, were created in 9 dogs. In both groups, the defects were conditioned with EDTA. One defect was treated with Emdogain Plus (n = 9), while the contralateral defect serving as control remained empty (n = 8). The defects in both groups were fully covered by coronally repositioned flaps. After 5 months of healing, histologic and histometric analysis was preformed. Results: A significant amount of new attachment and bone formation was observed in both control and test specimens. However, in a number of control specimens, ankylosis was also observed. In the control and test groups, respectively, the mean new cementum length was 10.8 2.1 mm and 8.6 3.2 mm; the mean periodontal ligament length was 7.6 3.8 mm and 8.1 4.0 mm. The mean new bone height was 4.4 1.3 mm and 4.3 1.6 mm in the control and test groups, respectively. No statistical differences were found between the two groups in terms of amount of cementum, periodontal ligament, and alveolar bone regeneration. Conclusion: The present study failed to show higher amounts of newly formed cementum and bone following treatment of acute degree III mandibular furcation defects following use of Emdogain Plus compared with a coronally advanced flap. Emdogain Plus seems to have a protective role against ankylosis in this type of defect. (Quintessence Int 2012;43:e48e59)

Key words: enamel proteins, furcation, periodontal regeneration

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