Considerations on the contribution of ageing to loss of periodontal tissue support.

The present study is an attempt to assess if age-related changes, manifested as loss of probing attachment and alveolar bone, occur in humans. 511 subjects, in ages 20-24, 30-34, 40-44, 50-54 and 60-64 years, were included in the study. All subjects had undergone a comprehensive clinical examination, including recordings of probing pocket depth and probing attachment level. A subsample of subjects was selected, whose periodontal status indicated minimal experience of destructive periodontal disease. In these particular subjects, the height of the alveolar bone was also assessed. The results showed that in the subsample, (i) attachment loss increased with age, but (ii) a high proportion of tooth surfaces remained with no attachment or alveolar bone loss in ages between 20 and 64 years. There are reasons to suggest, therefore, that age-related alterations in the periodontium may not inevitably be manifested as loss of probing attachment or alveolar bone.

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