期刊
JOURNAL OF CLINICAL PERIODONTOLOGY
卷 35, 期 8, 页码 659-667出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1600-051X.2008.01243.x
关键词
bias; mean periodontal probing pockets and attachment level; partial recording; periodontal diseases/diagnosis
Objectives: The study aim was to assess bias magnitudes of periodontal disease severity estimates for specific partial recording protocols (PRPs) in epidemiological studies. Material and Methods: Estimates of mean clinical attachment loss (MCAL) and mean probing pocket depth (MPPD) were derived for 20 different PRPs using full-mouth periodontal data from 1437 dentate Brazilian subjects 14-103 years old having at least four teeth. Biases, relative biases and intra-class correlations for all PRPs were evaluated. Graphical methods were used to assess how well the PRP-based estimates agreed with full-mouth scores across levels of disease. Results: Slightly higher levels of disease were evidenced on lingual than on buccal sites. Seven multi-site PRPs and the Ramfjord PRP produced small biases in MPPD (-0.17 to 0.04 mm) and MCAL with relative biases under 8% and 4% in absolute value for MPPD and MCAL, respectively. Biases for full- and random half-mouth-based PRPs were similar. The three-site random half-mouth MB-B-DL and the Ramfjord PRPs produced the smallest biases, with relative biases < 3% in absolute value for MPPD and MCAL. Conclusions: Bias for MPPD or MCAL estimates varies by site type, number of sites per tooth and number of quadrants included in the PRP.
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