NCT05912725

Conventional Impressions Versus Digital Impression Techniques for Implant Supported Screw Retained Prosthesis

Evaluation of the Accuracy of Conventional and Digital Implant Impression Techniques in Bilateral Distal Extension Cases

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 8 (actual)
• Sponsor: Tanta University · Academic / Other
• Sex: All
• Age: 30 Years – 55 Years
• Healthy volunteers: Accepted

Summary

The purpose was to evaluate the accuracy of traditional and digital implant level impression procedures by using three-dimensional superimposition analysis , and evaluate the passive fit of screw- retained implant supported restorations fabricated using conventional and digital impression techniques in bilateral distal extension cases (class I kennedy classification)

Detailed description

Eight patients who had missing all mandibular posterior teeth except first premolars were included in this study. In each patient, 4 implants were placed, 2 in each side to support 3 units screw retained zirconia restorations. Three months after implant placement, each patient underwent two implant level impression techniques (n=8) for each technique: Conventional implant impressions CII (pick-up, splinted transfers), and digital implant impressions DII were captured with TRIOS 3 Shape intraoral optical scanner. In this study, digital impression was considered as a reference data.

Conditions

• Partial Edentulism Class 1

Interventions

Type	Name	Description
PROCEDURE	Implant placement	4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar 4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar

Timeline

• Start date: 2020-04-30
• Primary completion: 2021-12-28
• Completion: 2022-12-14
• First posted: 2023-06-22
• Last updated: 2023-06-22

Locations

1 site across 1 country: Egypt