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Related Experiment Videos

Probe tine diameter and probing depth.

F Atassi1, H N Newman, J S Bulman

  • 1Department of Periodontology, British Postgraduate Medical Federation, London, UK.

Journal of Clinical Periodontology
|May 1, 1992
PubMed
Summary
This summary is machine-generated.

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The parallel-sided periodontal probe consistently measured deeper pocket depths than the tapered probe. This suggests standardizing probe design can minimize measurement errors in clinical practice.

Area of Science:

  • Periodontology
  • Dental Instrumentation

Background:

  • Accurate probing pocket depth (PPD) measurement is crucial for diagnosing and monitoring periodontal disease.
  • Variations in periodontal probe design, specifically tine diameter and shape, may influence PPD measurements.
  • Standardization of instruments is essential for reliable clinical data collection in periodontology.

Purpose of the Study:

  • To evaluate the impact of different tine diameters (parallel-sided vs. tapered) on probing pocket depth measurements.
  • To compare the in vivo repeatability and accuracy of two distinct periodontal probe tine designs.

Main Methods:

  • Two sets of periodontal probes with Williams markings and round tips (0.5 mm diameter) were used: one parallel-sided (mean tip diameter 0.46 mm) and one tapered (mean tip diameter 0.48 mm).

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  • Probes were mounted at a standardized force of 0.25 N.
  • Examiner probing repeatability was assessed using the kappa statistic.
  • 412 approximal pockets in 53 adult periodontitis patients were measured twice with a 15-minute interval.

    • Main Results:

    • High examiner probing repeatability was achieved with both probe types (kappa 0.86 for parallel-sided, 0.81 for tapered).
    • The parallel-sided tine demonstrated a statistically significant tendency to record deeper pocket depths compared to the tapered tine when discrepancies occurred.
    • Calibration markings on both probes were highly consistent with expected values.

    Conclusions:

    • The design of the periodontal probe's tine, specifically its diameter and taper, can influence probing pocket depth measurements.
    • Utilizing standardized probe designs, alongside rigorous examiner training, can help minimize measurement variability and improve the reliability of periodontal data.
    • Further research into instrument standardization is warranted to enhance diagnostic accuracy in periodontology.