The Effectiveness of iTero Element 5D NIRI System in Early Proximal Caries Detection in Permanent Teeth

April 8, 2024 updated by: Xia Kai, West China College of Stomatology

Comparison of Near-infrared Imaging With Cone Beam Computed Tomography for Proximal Caries Detection in Permanent Dentition: An in Vivo Study.

As a new emerging technology for the diagnosis of dental caries, near-infrared imaging requires further research and validation to determine its effectiveness. This study aims to compare near-infrared imaging with cone-beam computed tomography (CBCT) to validate the efficiency of near-infrared imaging in diagnosing proximal caries using large-scale clinical data through retrospective cross-sectional studies.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
120

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Sichuan
      • Chengdu, Sichuan, China, 610041
        • Recruiting
        • West China Hospital of Stomatology, Sichuan University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

Patients who underwent orthodontic treatment at the West China School of Stomatology.

Description

Inclusion Criteria:

  • Permanent dentition
  • Participants aged 12 and above
  • Patients who have undergone iTero Element 5D oral scanning, as well as CBCT imaging, intraoral photography, and clinical oral examination within 1 week
  • CBCT or iTero Element 5D oral scanning indicating proximal caries

Exclusion Criteria:

The following teeth were excluded:

  • Third molars
  • Teeth with gross loss of tooth structure (cavitated carious lesions extending to the occlusal or buccal/lingual surfaces)
  • Teeth with amalgam fillings and their adjacent teeth
  • Teeth with crown restorations and their adjacent teeth

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
The population with a potential risk of proximal caries.
Diagnostic test: clinical oral examination
Under illumination in the dental unit, a UVE of the proximal surfaces of the patient's entire dentition was conducted by clinicians using a mouth mirror, dental probe, and an air-water syringe. Visual and tactile methods were performed according to the guidelines of the American Dental Association. Clinicians assessed the soundness of the proximal surfaces based on the presence of discoloration, surface alterations, or cavitation.
Diagnostic test: cone-beam computed tomography
All enrolled patients underwent CBCT scans because clear aligner treatment required real root/bone visualization features. We would like to clarify that due to the retrospective cross-sectional nature of this study, the patients involved were not subjected to radiation beyond what was initially necessary for their orthodontic treatment.
Diagnostic test: intraoral scanning
The patients underwent intraoral scanning using an iTero Element 5D imaging system (Align Technology, San Jose, CA, USA). This imaging system uses near-infrared light with a wavelength of 850 nm and provides multiple layers of data in a single scan, including a three-dimensional (3D) model, two-dimensional (2D) color images, and NIRI mapped to the 3D model

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
positive percent agreement
Time Frame: After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.
Using CBCT as the reference test, positive percent agreement of NIRI, UVE, and a combination of the two index tests in parallel (PAR) for the detection of proximal caries at different depths and in different tooth locations was evaluated.
After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.
negative percent agreement
Time Frame: After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.
Using CBCT as the reference test, negative percent agreement of NIRI, UVE, and a combination of the two index tests in parallel (PAR) for the detection of proximal caries at different depths and in different tooth locations was evaluated.
After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.
overall percent agreement
Time Frame: After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.
Using CBCT as the reference test, overall percent agreement of NIRI, UVE, and a combination of the two index tests in parallel (PAR) for the detection of proximal caries at different depths and in different tooth locations was evaluated.
After the interpretation of CBCT, NIRI, and UVE, an average of 10 months.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Proximal caries positive site diagnosed by CBCT
Time Frame: Immediately following CBCT image interpretation.
Diagnosis of of carious proximal tooth surfaces identified through CBCT. Specifically, the cross-sectional view showing the deepest caries involvement was used for International Caries Detection and Assessment System (ICDAS) scoring and was categorized into shallow caries, moderate caries (ICDAS 1-2), and deep caries (ICDAS 3-6).
Immediately following CBCT image interpretation.
Proximal caries positive site diagnosed by near-infrared imaging (NIRI)
Time Frame: Immediately following NIRI image interpretation.
Owing to the challenges in applying ICDAS scoring for proximal caries detected using NIRI, the classification was either positive (manifest as bright areas) or negative.
Immediately following NIRI image interpretation.
Proximal caries positive site diagnosed by unaided visual examination (UVE)
Time Frame: Immediately following clinical oral examination.
Under illumination in the dental unit, a UVE of the proximal surfaces of the patient's entire dentition was conducted by senior orthodontists using a mouth mirror, dental probe, and an air-water syringe. Visual and tactile methods were performed according to the guidelines of the American Dental Association. Owing to the challenges in applying ICDAS scoring for proximal caries detected using UVE, the classification was either positive (presence of discoloration, surface alterations, or cavitation) or negative.
Immediately following clinical oral examination.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
West China College of Stomatology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 16, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 23, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 26, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 12, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 8, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • WCHSIRB-D-2022-430

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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