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Localized vertical bone defects of pulpal etiology were common and severe, often resulting in tooth mortality. The present paper identifies a number of factors that have contributed to the development of some important misconceptions about the nature of periodontal disease, its incidence, and its etiology.<\/jats:p>","DOI":"10.1002\/ajpa.1330820312","type":"journal-article","created":{"date-parts":[[2006,2,3]],"date-time":"2006-02-03T23:23:02Z","timestamp":1139008982000},"page":"371-376","source":"Crossref","is-referenced-by-count":32,"title":["Periodontal defects of pulpal origin: Evidence in early man"],"prefix":"10.1002","volume":"82","author":[{"given":"N. 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