title: [An epidemiologic examination on the prevalence of the periodontal diseases and oral pigmentation in Yusho patients in 1996].
abstract: An epidemiologic examination was carried out to reveal the prevalence of the periodontal diseases and oral pigmentation in patients with Yusho 28 years after PCB exposure. The results obtained were as follows. 1) 162 teeth out of a total of 309 examined teeth had a periodontal pocket deeper than 3 mm, although 32 teeth out of 162 teeth had a periodontal pocket deeper than 4 mm. 2) Oral pigmentation was observed in 47 out of 82 patients with Yusho. It was particularly noteworthy that gingival pigmentation was observed at a much higher frequency in younger patients while pigmentation of the buccal mucosa, the lips or the palate was observed at a much higher frequency in older patients.
authors.affiliation: Department of Conservative Dentistry 1, Faculty of Dentistry, Kyushu University, Fukuoka.
authors.forename: I
authors.initials: I
authors.lastname: Hashiguchi
authors.forename: H
authors.initials: H
authors.lastname: Anan
authors.forename: K
authors.initials: K
authors.lastname: Maeda
authors.forename: A
authors.initials: A
authors.lastname: Akamine
authors.forename: H
authors.initials: H
authors.lastname: Fukuyama
authors.forename: H
authors.initials: H
authors.lastname: Okumura
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005506:Food Contamination; D006801:Humans; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000139:chemically induced / Q000453:epidemiology*; D012275:Oryza / Q000506:poisoning*; D010510:Periodontal Diseases / Q000139:chemically induced / Q000453:epidemiology*; D010859:Pigmentation Disorders / Q000139:chemically induced / Q000453:epidemiology*; D010938:Plant Oils / Q000506:poisoning*; D011041:Poisoning / Q000150:complications; D011078:Polychlorinated Biphenyls / Q000506:poisoning*; D015995:Prevalence
chemical_list: D010938:Plant Oils; D011078:Polychlorinated Biphenyls