Effect of Scanning Technology on the Accuracy of Digitally Customized Intraradicular Attachments

Effect of Scanning Technology on the Accuracy of Digitally Customized Intraradicular Attachments: A Cross Overstudy

This study aims to evaluate the accuracy of intra-radicular attachments fabricated by direct scanning using three different scanners in vivo. The primary outcome will be the accuracy of the fabricated attachments, while secondary outcomes will includepatient-reported comfort during procedure of taking intraradicular attachment conventional impression and direct scanning.

Study Overview

• Status: Not yet recruiting
• Conditions: Scanning Devices
• Intervention / Treatment: Device: 3 shape desktop scanner; Device: SHINING 3D intraoral scanner; Device: Planmeca Emerald S intraoral scanner

Detailed Description

The fabrication of intra-radicular attachments is a critical step in restoring endodontically treated teeth. The accuracy of these restorations directly impacts their clinical performance, including retention, marginal fit, and long-term success. With advancements in digital dentistry, intraoral scanners (IOS) have become increasingly popular for direct scanning of intra-radicular preparations. However, the accuracy of these scanners varies depending on their technology, software, and clinical conditions

• Study Type: Interventional
• Enrollment (Estimated): 60
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Afnan GM Qamar; Phone Number: 01158902700; Email: afnan.gamal98@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

1. Patients aged 18-65 years.
2. Endodontically treated teeth requiring intra-radicular attachments.
3. Adequate oral hygiene .
4. Periodontally Compromised Teeth: When some teeth have reduced bone support but can still be maintained as overdenture abutments with proper treatment.

Exclusion Criteria:

1. Severely Compromised Remaining Teeth: If the remaining teeth have poor prognosis due to extensive decay or severe periodontal disease.
2. Severe Bone Loss Around Abutment Teeth: If the remaining teeth do not provide adequate support, they may fail early, leading to additional complications.
3. Severe Malocclusion: Where occlusal discrepancies make overdenture placement difficult.
4. Limited inter-arch Space: cann't accommodate the overdenture components. 5 . Poor Oral Hygiene: increase the risk of decay or periodontal issues in retained abutments.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Group I; Indirect scanning by desktop scanner (for the conventional impression)	Device: 3 shape desktop scanner; Scanning of intra-radicular impression by desktop scanner
Experimental: Group II; Intraoral scanning by Intraoral scanner A	Device: SHINING 3D intraoral scanner; Direct scanning of the intra-radicular canal by Intraoral scanner A
Experimental: Group III; Intraoral scanning by Intraoral scanner B	Device: Planmeca Emerald S intraoral scanner; Direct scanning of the intra-radicular canal by Intraoral scanner B

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Accuracy	measure accuracy between the dimension of the prepared canal gained by intra-radicular impression and the dimension of the prepared canal directly by two different types of intraoral scanners	Immediately after scanning.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Patient-reported comfort	Patient-reported comfort (assessed via a Likert scale questionnaire) Scaled from 0-100 The highest score means excellent The lowest score means unsatisfactory	Immediately after impression taking and scanning.

Collaborators and Investigators

• Sponsor: October 6 University

Study record dates

Study Major Dates

• Study Start (Estimated): May 1, 2026
• Primary Completion (Estimated): July 30, 2026
• Study Completion (Estimated): August 1, 2026

Study Registration Dates

• First Submitted: September 29, 2025
• First Submitted That Met QC Criteria: February 4, 2026
• First Posted (Actual): February 11, 2026

Study Record Updates

• Last Update Posted (Actual): April 24, 2026
• Last Update Submitted That Met QC Criteria: April 21, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: Effect of Scanning Technology

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No