NCT07004517

The Study on the Accuracy of Peri-implant Probing and Related Influencing Factors

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 83 (estimated)
• Sponsor: The Dental Hospital of Zhejiang University School of Medicine · Academic / Other
• Sex: All
• Age: 18 Years – 90 Years
• Healthy volunteers: Not accepted

Summary

The aim of the diagnostic accuracy study was to compare the diagnostic accuracy of probing depth before (PPD-1) and following (PPD-2) the removal of prothesis in identifying the presence of peri-implantitis and assess the factors influencing peri-implant probing.

Detailed description

This study aims to design a diagnostic accuracy study to compare the peri-implant probing depth and bleeding on probing before and after crown removal. It will explore the impact of prosthetic design on the accuracy of peri-implant probing and its diagnostic accuracy, and provide clinical recommendations on whether the prosthesis should be removed prior to peri-implant probing.

Conditions

• Peri-Implantitis
• Diagnosis

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	peri-implant probing before and after crown removal	Before removal of the prosthetic reconstruction: * Measurement of PPD-1: The PPDs at 6 site were measured as the distance from the mucosal margin to the base of the peri-implant pocket. * Measurement of BOP-1：Bleeding sites after gentle probing within 15s were recorded as BOP scores. A positive score (1 point) was recorded if bleeding was observed during either of probing assessment by two researchers. After removal of the prosthetic reconstruction, PPD-2 and BOP-2 were recorded following the same protocol.

Timeline

• Start date: 2024-01-11
• Primary completion: 2025-06-01
• Completion: 2025-08-01
• First posted: 2025-06-04
• Last updated: 2025-06-04

Locations

1 site across 1 country: China