作者: A.I. Ismail , E.C. Morrison , B.A. Burt , R.G. Caffesse , M.T. Kavanagh
DOI: 10.1177/00220345900690020201
关键词:
摘要: The purpose of this epidemiological study was to estimate the degree change in periodontal attachment level a sample adults examined 1959 and 1987 Tecumseh, Michigan. Out 526 individuals between ages five 60 years 1959, 325 resided within an 80-km-radius area 1987. Of those, 167 were re-examined. Loss (LPA) determined with Michigan #0 probe on four tooth sites (disto-buccal, mid-buccal, mesio-buccal, mid-lingual) for all teeth present. contacted, 28 had lost their during years. examined, two refused probing. 165 LPA measurements 1987, only 22 (13.3%) average increased loss 2 mm or more per person 1987; (3.0%) increase 3 more, (1.2%) 4 more. 59.3% the...