“…A limited number of studies Keller, Chung, & Lin, 2012; J. H. Lee et al, 2015;Matsumoto et al, 2014;Oguz et al, 2013;Sharma, Pradeep, & Raju, 2011;Tsao et al, 2015;Uppal, Bhandari, & Singh, 2014;Zadik, Bechor, Galor, Justo, & Heruti, 2009) have identified an association between ED and chronic periodontitis (CP), a disease of the supporting structures of teeth, namely cementum, gingiva, periodontal ligament, and alveolar bone. In the study by Matsumoto et al (2014), an information sheet was distributed to 300 adult men with ED that received a comprehensive dental examination. These results reported a statistically significant association between scores of CP and presence of ED.…”