NCT06425770

Digital vs Conventional Impression in Capturing the Emergence Profile Around Maxillary Anterior Implant-supported Crowns

Investigating the Accuracy of Conventional vs Digital Impressions and Conventional vs 3D Fabricated Casts in Capturing the Emergence Profile Around Maxillary Anterior Single Implant-supported Crowns

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 15 (estimated)
• Sponsor: Semmelweis University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

This study compares conventional impression and cast fabrication to direct/indirect digital scannig and 3D printed casts regarding their accuracy in replicating the peri-implant emergence profile of single implants in the maxillary anterior region (FDI #15-25).

Detailed description

Correct design of the peri-implant emergence profile (EP) is crucial for maintaining the health of the supracrestal complex and long-term success of the implant implant-prosthodontics. After its formation with a provisional restoration, its shape needs to be transferred to the final restoration via conventional elastomeric or digital (direct/indirect) impression taking. Our aims are to investigate around maxillary anterior single implants in patients with thick gingival phenotype: 1. the accuracy of direct digital impression vs indirect digital impression vs conventional elastomeric impression in capturing the EP and implant position 2. the accuracy of 3D printed cast with conventional gingival mask vs conventional epoxy-resin cast with gingival mask in replicating the EP and implant position 3. the amount of soft tissue collapse at 0,2,10,20 minutes following the removal of the provisional restoration in case of direct EP scanning

Conditions

• Dental Implants, Single-Tooth
• Dental Impression Technique

Interventions

Type	Name	Description
PROCEDURE	indirect digital impression and 3D printed cast	the provisional restoration will be scanned with intraoral scanner extraorally, based on which a virtual model will be created, from which a 3D printed cast will be created with manually fabricated gingival mask based on the provisional restoration
PROCEDURE	direct digital impression	the emergence profile will be directly scanned with intraoral scanner at 0, 2, 10, and 20 minutes after removing the provisional restoration
PROCEDURE	conventional impresion and cast	conventional impression with elastomer (silicon), from which a high-precision epoxi-resin cast with gingival mask will be created

Timeline

• Start date: 2023-10-05
• Primary completion: 2025-02-01
• Completion: 2026-02-01
• First posted: 2024-05-22
• Last updated: 2024-05-22

Locations

1 site across 1 country: Hungary