NCT07393269

Accuracy of Scannable Healing Abutments for Implant Impressions

Accuracy of Implant Impression Techniques Using Scannable Healing Abutments Versus Conventional Methods. A Controlled Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 22 (actual)
• Sponsor: Sherif Aly Sadek · Academic / Other
• Sex: All
• Age: 40 Years – 70 Years
• Healthy volunteers: Not accepted

Summary

This prospective controlled clinical trial evaluates the three-dimensional positional accuracy of implant-level impressions obtained using scannable healing abutments compared with conventional open-tray and closed-tray impression techniques in partially edentulous patients with unilateral free-end saddle situations.

Detailed description

Accurate transfer of implant position is critical for achieving passive fit of implant-supported prostheses. This study compares the trueness of implant impressions obtained using a digital workflow based on scannable healing abutments with conventional open-tray and closed-tray impression techniques. Twenty-two partially edentulous patients with unilateral distal extension ridges will undergo all three impression techniques. Three-dimensional deviations will be quantified using best-fit superimposition and root mean square analysis, with the open-tray technique serving as the reference standard.

Conditions

• Partially Edentulous Maxilla, Mandible

Interventions

Type	Name	Description
PROCEDURE	Digital implant impression using scannable healing abutments	Digital acquisition of implant position using intraoral scanning of scannable healing abutments following second-stage surgery.
PROCEDURE	Open-tray implant impression	Conventional open-tray implant-level impression using splinted impression copings and polyvinyl siloxane material.
PROCEDURE	Closed-tray implant impression	Conventional closed-tray implant-level impression using transfer copings and polyvinyl siloxane material.

Timeline

• Start date: 2025-07-02
• Primary completion: 2025-10-20
• Completion: 2025-11-10
• First posted: 2026-02-06
• Last updated: 2026-02-06

Locations

1 site across 1 country: Egypt