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Longitudinal changes in periodontal disease in untreated subjects
Author(s) -
Lindhe J.,
Okamoto H.,
Yoneyama T.,
Haffajee A.,
Socransky S. S.
Publication year - 1989
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1989.tb01037.x
Subject(s) - periodontal disease , medicine , gingivitis , dentistry , periodontitis
About 300 subjects, 20–79 years of age were recruited for a longitudinal study on the effect of periodontal therapy. The result of a baseline examination have been reported earlier. Following this baseline examination, the subjects were monitored for 24 months without therapy‐ Re‐examinations were performed after 12 and 24 months. Ail teeth including the 3rd molars were included in the return for either the 1st, the 2nd or both re‐examinations. An analysis was performed regarding the periodontal status at baseline, of the respondents and non‐respondents. The results from the follow‐up examinations of the participating characteristic of periodontal disease. Thus, the mean values of probing pocket depth and probing attachment level failed to change between baseline and the re‐examinations after 1 and 2 years. Even if the mean values Underwent only minor changes, however, certain subjects within each age category improved their periodontal conditions, whereas other subjects worsened. Furthermore, the findings of the re‐examinations revealed that there was a strong correlation between improving plaque levels and gingivitis. The relationship between supra‐gingival plaque levels and changes with respect to probing depth and attachment levels were weak.