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[\'Department of Periodontology, Cankiri Karatekin University, Cankiri 18200, Turkey.\', \'Department of Oral and Maxillofacial Surgery, Karabük University, Karabük 78050, Turkey.\', \'Department of Oral and Maxillofacial Surgery, Universitätsklinikum Schleswig Holstein, Campus Kiel, Christian Albrechts University, 24105 Kiel, Germany.\', \'Department of Periodontology, Bonn University, 53111 Bonn, Germany.\']
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