This study aims to evaluate the effectiveness of toothbrushing education on plaque removal in children aged 7-12 years with specific learning disabilities (SLD) and to compare their plaque removal performance with healthy children. Participants will receive standardized toothbrushing education supported by visual and auditory materials. Plaque Index, Gingival Index, and photograph-based quantitative plaque analyses will be evaluated at baseline and after a 2-week follow-up period.

Dental plaque is one of the major etiological factors associated with oral diseases such as dental caries and gingival inflammation. Effective plaque control through proper toothbrushing habits plays an important role in maintaining oral health in children. However, children with specific learning disabilities (SLD) may experience difficulties in acquiring and maintaining adequate oral hygiene behaviors because of limitations in learning processes, attention, and motor coordination.

The aim of this study is to evaluate the short-term effectiveness of structured toothbrushing education in children aged 7-12 years with SLD and to compare plaque removal performance with healthy children using photograph-based quantitative analysis methods.

The study will be conducted at the Department of Pediatric Dentistry, Faculty of Dentistry, Alanya Alaaddin Keykubat University. Children diagnosed with SLD and age-matched healthy controls will be included in the study. All participants will receive standardized toothbrushing education supported by visual cards and educational videos. Educational materials will be prepared in a child-friendly format and based on the Modified Bass toothbrushing technique.

A plaque-disclosing agent will be applied to all participants to visualize dental plaque before photography. Intraoral photographs will be obtained under standardized conditions using the same lighting, camera settings, and imaging protocol. At each evaluation session, intraoral photographs will be obtained both before and after toothbrushing in order to assess immediate plaque removal effectiveness. Quantitative plaque analysis will be performed using ImageJ/FIJI software by calculating plaque percentage (P%) values from disclosed plaque areas.

Participants will use standardized toothbrushes and toothpaste throughout the study period. During the 2-week follow-up period, children will be encouraged to continue toothbrushing under parental supervision using the taught brushing technique. At follow-up visits, Plaque Index, Gingival Index, plaque disclosure, and intraoral photography procedures will be repeated to evaluate changes in plaque removal effectiveness and oral hygiene performance.

The findings of this study are expected to contribute to the development of individualized oral hygiene education approaches for children with specific learning disabilities and to support the use of photograph-based quantitative plaque analysis methods in pediatric dentistry research.

Inclusion Criteria:

• Diagnosis of specific learning disabilities confirmed by a child and adolescent psychiatry specialist for the study group
• Confirmation by a child and adolescent psychiatry specialist that the control group participants are healthy and do not have any psychiatric diagnosis
• Age between 7 and 12 years
• Written informed consent obtained from parents or legal guardians

Exclusion Criteria:

• Children with additional psychiatric diagnoses such as autism spectrum disorder, attention deficit/hyperactivity disorder, or intellectual disability
• Children with systemic health problems or physical disabilities that may interfere with participation in the study

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

The outcome assessor performing the quantitative plaque analysis will be blinded to group allocation.