Effect of Scanning Technology on Internal Fit of Digitally Customized Intra-radicular Attachments

NCT07541625 | Not Yet Recruiting

• 1 other identifier: Intraradicular attachment fit
• Study Type: interventional
• Target: 60
• Locations: 0 countries
• Sites: N/A

Brief Summary

This study aims to evaluate the marginal and internal fit of intra-radicular attachments fabricated by direct scanning using two different intraoral scanners compared to indirect scanning of conventional impressions.

Conditions

Partially Edentulous Jaw

Keywords

Intraradicular attachments; Marginal fit; Internal fit; Intraoral scanner; Scan accuracy; Prosthetic fit

Outcome Measures

Primary Outcomes (1)

• Marginal and internal fit evaluated using software.

  Immediately after scanning

Secondary Outcomes (1)

• Time control, the time taken for each scanningor impression-taking process will be recorded in seconds using a stopwatch.

  During scanning

Study Arms (3)

Indirect technique for conventional impression

ACTIVE COMPARATOR

Procedure: conventional impression

Direct scanning by intraoral scanner A

EXPERIMENTAL

Device: Intraoral scanner

Direct scanning by intraoral scanner B

EXPERIMENTAL

Device: Intraoral scanner

Interventions

conventional impression PROCEDURE

indirect scanning for conventional impression

Indirect technique for conventional impression

Intraoral scanner DEVICE

Use of an intraoral scanner to obtain digital impressions for the fabrication of intra-radicular attachments. Two different intraoral scanners will be used to capture digital data of the prepared tooth, and the resulting scans will be used to fabricate the attachments through a CAD/CAM workflow. The accuracy of the fit will be evaluated and compared with conventional impression techniques.

Direct scanning by intraoral scanner A; Direct scanning by intraoral scanner B

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Endodontically treated teeth requiring intraradicular attachments.
• Adequate oral hygiene.
• Partially edentulous cases where compromised remaining teethcannot serve as abutments for traditional removable partial dentures (RPDs). -
• Periodontally compromised teeth that can still be maintainedasoverdenture abutments with proper treatment.

You may not qualify if:

• Severely compromised remaining teeth with poor prognosis duetoextensive decay or severe periodontal disease.
• Severe bone loss around abutment teeth.
• Severe malocclusion making overdenture placement difficult.
• Limited inter-arch space that cannot accommodate overdenturecomponents. 5. Poor oral hygiene increasing the risk of decay or periodontal issues.
• \. Patients medically unfit for any surgical procedure.

Sponsors & Collaborators

• October 6 University: lead

MeSH Terms

Conditions

Jaw, Edentulous, Partially

Condition Hierarchy (Ancestors)

Jaw, Edentulous; Jaw Diseases; Musculoskeletal Diseases; Stomatognathic Diseases; Mouth, Edentulous; Mouth Diseases; Tooth Diseases

Central Study Contacts

Nancy Adel Hamed Younes

CONTACT

01014196692; Nancy.younes94@gmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Demonstrator at Removable Prosthodontics department at October 6 university

Study Record Dates

• First Submitted: April 13, 2026
• First Posted: April 21, 2026
• Study Start: April 30, 2026
• Primary Completion: April 30, 2026
• Study Completion (Estimated): July 30, 2026
• Last Updated: April 23, 2026

Record last verified: 2026-04