Effect of partial recording protocols on severity estimates of periodontal disease

Albert Kingman, Cristiano Susin, Jasim M. Albandar

Research output: Contribution to journalArticlepeer-review

127 Scopus citations


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 Ramfjörd 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 Ramfjörd 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.

Original languageEnglish (US)
Pages (from-to)659-667
Number of pages9
JournalJournal of Clinical Periodontology
Issue number8
StatePublished - Aug 2008
Externally publishedYes


  • Bias
  • Mean periodontal probing pockets and attachment level
  • Partial recording
  • Periodontal diseases/diagnosis

ASJC Scopus subject areas

  • Periodontics


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