As the extent of attachment loss increased from < 15% to > 45%, elevated PbB level prevalence increased from 1.
The length of time required for furcation development may explain why dental furcations are a stronger indicator for increasing PbB levels than are attachment loss measures.
Therefore, compared to attachment loss, the same magnitude of pocket depth would have less influence on circulatory blood lead.
Results from a bivariate analysis showed that 76% of individuals with dental furcations also had attachment loss > 45%.
Age group (in years) Attachment loss
(in mm) 38-49 6.
A case-control study published in 2005 used probing depths and clinical attachment loss to define periodontal disease.
7) The researchers used clinical attachment loss as the indicator of periodontal disease.
A prospective cohort study published in 2008 found a modest association between periodontitis and preterm birth using clinical attachment loss and probing depth as the indicators of periodontal disease.
The researchers did not find an association between clinical periodontitis measured by attachment loss and preterm birth.
Chronic periodontitis was described as one site with clinical attachment loss (CAL) > 1 mm with gingival bleeding.
31,42,48-50) In one of the largest studies to date, Moore et al examined the relationship between multiple periodontal parameters, including mean probing depths, percent of tooth sites with probing depths greater than or equal to 4 mm, percent of sites with bleeding on probing, and percent of sites with clinical attachment loss greater than or equal to either 2 or 3 mm.
Clinical markers of periodontal disease, such as gingival recession, clinical attachment loss, or bleeding on periodontal probing, may be late manifestations of the local infection, such that bacterial exposure may have already occurred with subsequent downstream deleterious effects.