NCT07403851

Brief Summary

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.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
1mo left

Started May 2026

Shorter than P25 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress49%
May 2026Aug 2026

First Submitted

Initial submission to the registry

September 29, 2025

Completed
5 months until next milestone

First Posted

Study publicly available on registry

February 11, 2026

Completed
3 months until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 30, 2026

Expected
2 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2026

Last Updated

April 24, 2026

Status Verified

April 1, 2026

Enrollment Period

3 months

First QC Date

September 29, 2025

Last Update Submit

April 21, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • 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 Outcomes (1)

  • Patient-reported comfort

    Immediately after impression taking and scanning.

Study Arms (3)

Group I

ACTIVE COMPARATOR

Indirect scanning by desktop scanner (for the conventional impression)

Device: 3 shape desktop scanner

Group II

EXPERIMENTAL

Intraoral scanning by Intraoral scanner A

Device: SHINING 3D intraoral scanner

Group III

EXPERIMENTAL

Intraoral scanning by Intraoral scanner B

Device: Planmeca Emerald S intraoral scanner

Interventions

Scanning of intra-radicular impression by desktop scanner

Group I

Direct scanning of the intra-radicular canal by Intraoral scanner A

Group II

Direct scanning of the intra-radicular canal by Intraoral scanner B

Group III

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • Severely Compromised Remaining Teeth: If the remaining teeth have poor prognosis due to extensive decay or severe periodontal disease.
  • Severe Bone Loss Around Abutment Teeth: If the remaining teeth do not provide adequate support, they may fail early, leading to additional complications.
  • Severe Malocclusion: Where occlusal discrepancies make overdenture placement difficult.
  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

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
Teaching assistant in removable prosthodontic department

Study Record Dates

First Submitted

September 29, 2025

First Posted

February 11, 2026

Study Start

May 1, 2026

Primary Completion (Estimated)

July 30, 2026

Study Completion (Estimated)

August 1, 2026

Last Updated

April 24, 2026

Record last verified: 2026-04