Dental Caries and Oral Hygiene Status in Children With Specific Learning Disabilities (SLD-OH)

May 21, 2026 updated by: Gül Keskin, Alanya Alaaddin Keykubat University
This study aims to evaluate dental caries and oral hygiene status in children aged 7-12 years with specific learning disabilities (SLD) and to compare the findings with healthy children. Clinical oral examinations, including dmft/DMFT, ICDAS II, Plaque Index, and Gingival Index assessments, will be performed. In addition, questionnaire-based evaluations of oral hygiene habits, dietary habits, and parental supervision during toothbrushing will be conducted.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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.
70

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Fatma Yaman Toktasır, Research Assistant, DDS
  • Phone Number: +905055881265
  • Email: yamanfatma07@gmail.com

Study Locations

  • Turkey (Türkiye)
    • Antalya
      • Alanya, Antalya, Turkey (Türkiye), 07400
        • Alanya Alaaddin Keykubat University Faculty of Dentistry
        • Contact:
        • 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

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Children aged 7-12 years presenting to Alanya Alaaddin Keykubat University Faculty of Dentistry Paediatric Dentistry Clinic. The study group consists of children diagnosed with specific learning disorder (SLD) by a psychiatrist. The control group consists of healthy children with no psychiatric diagnosis, confirmed by a psychiatrist.

Description

Inclusion Criteria:

  • Children aged 7-12 years
  • For the study group: diagnosis of specific learning disorder (SLD) confirmed by a psychiatrist
  • For the control group: confirmed healthy with no psychiatric diagnosis by a psychiatrist
  • Written informed consent obtained from the parent or guardian

Exclusion Criteria:

  • Children with additional psychiatric diagnoses (e.g., autism spectrum disorder, attention-deficit/hyperactivity disorder, intellectual disability)
  • Children with systemic disease or physical disability that may prevent participation in the study

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.
Children with Specific Learning Disorder (SLD)
Children aged 7-12 years diagnosed with specific learning disorder by a psychiatrist, presenting to Alanya Alaaddin Keykubat University Faculty of Dentistry. Dental caries experience (dmft/DMFT), caries severity (ICDAS II), plaque index and gingival index will be assessed.
Healthy Control Children
Children aged 7-12 years with no psychiatric diagnosis, confirmed healthy by a psychiatrist, presenting to Alanya Alaaddin Keykubat University Faculty of Dentistry Paediatric Dentistry Clinic. Dental caries experience (dmft/DMFT), caries severity (ICDAS II), plaque index and gingival index will be assessed.

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
Dental Caries Experience (dmft/DMFT)
Time Frame: Single assessment at the time of clinical examination
Decayed, missing, and filled teeth index for primary (dmft) and permanent (DMFT) dentition, assessed according to WHO criteria using mirror and periodontal probe under dental unit light.
Single assessment at the time of clinical examination
Caries Severity (ICDAS II)
Time Frame: Single assessment at the time of clinical examination
International Caries Detection and Assessment System II score recorded for each tooth using visual and tactile examination. The highest ICDAS II code recorded for each patient is used as the individual score.
Single assessment at the time of clinical examination

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
Plaque Index (PI)
Time Frame: Single assessment at the time of clinical examination
Loe & Silness Plaque Index assessing dental plaque thickness at the gingival margin, scored 0-3.
Single assessment at the time of clinical examination
Gingival Index (GI)
Time Frame: Single assessment at the time of clinical examination
Loe & Silness Gingival Index assessing quality, severity and localisation of gingival disease, scored 0-3.
Single assessment at the time of clinical 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.
Alanya Alaaddin Keykubat 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 (Estimated)

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.
June 1, 2026

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.
June 1, 2026

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.
October 1, 2026

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).
May 21, 2026

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.
May 21, 2026

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.
May 28, 2026

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.
May 28, 2026

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.
May 21, 2026

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.
May 1, 2026

More Information

Terms related to this study

Keywords

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.
  • ALKU-PEDO-2026-12/2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data (IPD) will not be shared due to participant confidentiality and privacy considerations.

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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