| periodontal disease in adolescents: some clinical and microbiologic correlates of attachment loss. | the influence of several clinical and microbiological variables on the site-specific risk of attachment loss was studied in navajo indian adolescents aged 14-19. diagnoses were made at mesio-buccal sites of the four first permanent molars. case-control analytical methods were used, with a. actinomycetemcomitans, b. gingivalis, and b. intermedius considered the "risk" variables, and with calculus, gingival bleeding, age, and gender treated as possible confounders. the presence of b. intermedius s ... | 1988 | 3198851 |