Assessing Accuracy of Kavo Diagnodent

March 18, 2023 updated by: Hanaa Mahmoud Elsayed Said, Cairo University

Comparison Between KAVO DIAGNOdent and Digital Radiography in Occlusal Caries Detection (A Diagnostic Accuracy Study)

This study aims to evaluate the accuracy of kavodiagondent and compare with digital radiograph (vista scan).the gold standard is light microscope

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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.

Detailed Description

Extracted teeth with intial caries (no cavitation)will be used to detect caries. The teeth will be numbered and each of the occlusal surfaces will be measured by DIAGNOdent with a conical probe in accordance with the manufacturer's instructions. The standard value for each individual tooth will be calibrated before each measurement by measuring in a region of sound tissue. The occlusal surfaces will be carefully scanned and measured 3 times when wet, and 3 times after they had been wiped with paper tissues and exposed to air for about 2 min in room temperature. The maximum value from each measurement will be registered and the mean values of the three data under wet and dry conditions, respectively, will be calculated. After an interval of 2 weeks, the procedure will be repeated under identical conditions. All occlusal surfaces will be photographed. The sites with the highest values will be indicated in the photographs in order to identify the location for the second measurement and for subsequent sectioning for light microscope examination.

The teeth will be arranged in pairs and mounted in plaster blocks. Reproducible radiographs will be obtained. This will be done by digital radiography (vista scan sensor). The radiographs will be examined by 4 radiologists. The observers will be instructed to select one of five ratings to represent his or her level of confidence that a carious lesion was present or not in the occlusal surfaces of the teeth. The following scale was used: 1 = definitely not caries, 2 = probably not Caries, 3 = questionable, 4 = probably caries, and 5 = definitely caries.

After the laser fluorescence measurements had been completed and the digital radiographs had been exposed, the teeth will be removed from the blocks and embedded in plastic. At the sites indicated in the photographs, buccolingual sections approximately 300 µm thick will be taken perpendicular to the occlusal surfaces using a water-cooled saw. The slices will then examined under light microscope. The lesion depth will be scored on a scale from 0 to 4, where 0 = sound, 1 = enamel caries limited to the outer half of the enamel, 2 = enamel caries in the inner half of the enamel, 3 = dentinal caries in the outer half of the dentine, and 4 =dentinal caries in the inner half of the dentine

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.
Interventional

Enrollment (Actual)

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.
42

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • Egypt
      • Cairo, Egypt
        • Hanaa Mahmoud elsayed

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

12 years to 60 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Extracted posterior teeth Visually intact occlusal surfaces or a variety of occlusal carious lesions, but no obvious cavities
  • Removal of organic material and stains from the surfaces, the teeth will be immersed in 10% sodium hypochlorite solution for 20 min, followed by rinsing in distilled water for 20 min. The teeth will then stored in saturated thymol solution or formalin.
  • The teeth will be arranged in pairs and mounted in plaster blocks.

Exclusion Criteria:

Teeth with deep cavity

-

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Other: Extracted teeth
Extracted teeth with intial caries without cavitation is examined by diagnodent and digital imaging and then by light microscope
Diagnostic test: Diagnodent
using DIAGNDENT depends on the principle that when 655nm wavelength of Diode laser is irradiated on dental surface, intraoral bacteria metabolites will absorb it and then metabolites emit a red fluorescence. The dental surface will reflect this fluorescence and gives number between 0 and 99 on the screen of the DIAGNdent.

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
To detect of occlusal caries
Time Frame: 4 months

Primary Outcome Measure:

1.To detect of occlusal caries To detect occlusal caries.42 teeth with initial non cavitated caries will be examined by kavodiagondent and then radiographed. The occlusal surfaces will be carefully scanned and measured 3 times when wet, and 3 times after they had been wiped with paper tissues and exposed to air for about 2 min in room temperature.the teeth will be radiographed.The radiographs will be examined by 4 radiologists. The observers will be instructed to select one of five ratings to represent his or her level of confidence that a carious lesion was present or not in the occlusal surfaces of the teeth. The following scale was used: 1 = definitely not caries, 2 = probably not Caries, 3 = questionable, 4 = probably caries, and 5 = definitely caries.

the light microscope will be used as gold standard.
4 months

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.
Cairo University

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.
November 16, 2022

Primary Completion (Actual)

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.
November 16, 2022

Study Completion (Anticipated)

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 30, 2023

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 1, 2023

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.
March 18, 2023

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.
March 20, 2023

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.
March 20, 2023

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.
March 18, 2023

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.
March 1, 2023

More Information

Terms related to this study

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.
  • ORAD 3-3-1

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings