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Related Experiment Videos

Important differences in clinical data from third, second, and first generation periodontal probes

H J Breen1, P A Rogers, H C Lawless

  • 1PHLS Statistics Unit, Colindale, London.

Journal of Periodontology
|April 1, 1997
PubMed
Summary

This study found significant differences in periodontal probe measurements between different probe generations. These variations in relative attachment levels and probable crevice depths impact clinical data interpretation.

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Area of Science:

  • Periodontology
  • Dental Diagnostics

Background:

  • Accurate measurement of periodontal parameters like relative attachment levels (RAL) and probable crevice depths (PCD) is crucial for diagnosing and monitoring periodontal disease.
  • Existing periodontal probes vary in design and generation, potentially influencing measurement consistency.

Purpose of the Study:

  • To compare the intra-probe and inter-probe reliability and agreement of first, second, and third-generation periodontal probes.
  • To assess the clinical significance of inter-probe differences in measuring periodontal parameters.

Main Methods:

  • Six periodontal probes (1 first, 4 second, 1 third generation) were used by a single clinician.
  • RAL and PCD were recorded in 6 patients with chronic adult periodontitis over two visits.
  • Measurements were taken at interproximal sites of Ramford index teeth and specific units (11, 26, 31, 46) to evaluate intra- and inter-probe variations.

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Main Results:

  • High intra-probe reproducibility for RAL and PCD (>94% agreement within 1 mm) was observed.
  • Inter-probe agreement showed < or = 1 mm variation at >49% of sites for RAL and >61% for PCD.
  • Significant differences in RAL and PCD were found between probe generations, with clinical importance noted for pockets >= 4 mm and >= 6 mm.

Conclusions:

  • Periodontal probe generation significantly influences measurements of RAL and PCD.
  • Inter-probe differences can be clinically significant, impacting the interpretation and comparison of periodontal data.
  • Clinicians should be aware of potential variations when using different periodontal probes.