Periodontal conditions in Swedish adolescents

摘要: Kallestal Carina. 1991. Periodontal conditions in Swedish adolescents. Umea University Odontological Dissertations Abstract No. 41, ISSN 0345-7532, ISBN 917174-603-X. This thesis describes the periodontal adolescents who have taken part an organized dental health program since pre-school age. Loss of tooth support was estimated from bone loss measurements and probing attachment level. To establish a threshold for loss, methodological study performed on normal appearance proximal alveolar bone. In subsequent study, used to compare two cohorts (n=400) were 16 years old 1975 1988, respectively. more comprehensive crosssectional 287 16-year-olds 283 18-year-olds northern Sweden described. Information as well background factors thought be connected with disease gathered by means clinical radiographic examination interview. this groups distinguished, one at buccal surfaces other loss. following analysis different compared differences factors. Each then examined separately case-referent studies. The main findings studies were: ► without any sign gingival inflammation or attach­ ment distance between cemento-enamel junction crest 0-2 mm range; thus, epidemiologic purposes >2 seems appropriate criterion same prevalence (3.5%) found 1988. cross-sectional 9% 16year-olds 19% 18-year-olds. compromised mainly surfaces. Proximal 3% 5% individu­ als, group had plaque, bleeding, calculus pocket depths ^ 4 than latter group, toothbrushing frequent results indicate etiologies tooth-surfaces these ages. Various may contribute young als. A majority those solitary affected sites, some signs inflammation, possibly indicating that destruction periodontium occurred earlier. Two cases tentatively given diagnosis periodontitis, thus giv­ ing 0.3% population. Factors related anatomy process seem associated buc­ cal