High-Frequency Ultrasound Compared to Periodontal Probing for Pocket Depth Assessment: A Diagnostic Accuracy Study

Area of Science:

• Dentistry
• Periodontology
• Medical Imaging

Background:

• Periodontal diseases require accurate measurement of pocket depth for diagnosis and management.
• Traditional probing pocket depth (PPD) measurements are invasive and can be operator-dependent.
• Novel, non-invasive methods for periodontal assessment are needed.

Purpose of the Study:

• To evaluate the efficacy of high-frequency ultrasound (HFUS) in measuring periodontal pocket depth.
• To compare HFUS measurements with conventional PPD measurements.
• To assess the diagnostic performance of HFUS in identifying periodontal pockets.

Main Methods:

• High-frequency ultrasound (HFUS) and conventional probing pocket depth (PPD) measurements were performed on 539 teeth from 34 participants.
• Statistical analyses included Bland-Altman analysis for agreement and Receiver Operating Characteristic (ROC) analysis for diagnostic performance.
• HFUS device prototype was used for pocket depth estimations.

Main Results:

• Mean PPD was 1.83 ± 0.55 mm, and mean US-PD was 1.86 ± 0.64 mm.
• Bland-Altman analysis showed a mean difference of -0.03 mm, indicating good agreement between methods.
• ROC analysis revealed HFUS has fair performance in identifying sites with ≥ 3 mm PPD (AUC = 0.718).

Conclusions:

• High-frequency ultrasound (HFUS) provides periodontal pocket depth estimations comparable to traditional probing.
• HFUS demonstrates potential as a non-invasive tool for periodontal pocket assessment, particularly on buccal surfaces.
• Further research may validate HFUS for routine clinical use in periodontology.