Clinical Research Directory

Inclusion Criteria: * For photographic records (two children): * Children without any systemic disease * Children in the primary dentition stage * Children able to cooperate during the photographic procedure * Children whose parents or legal guardians have provided written informed consent for participation and for the use of smile photographs * One child presenting physiologic interdental spacing * One child presenting no physiologic interdental spacing For esthetic perception evaluation: * Third-, fourth-, or fifth-year dental students * Parents presenting to the Department of Pediatric Dentistry for their children's routine dental treatment * Individuals who voluntarily agree to participate and provide informed consent Exclusion Criteria: * Photographs that do not comply with the standardized photography protocol defined in the study * Multiple photographs taken of the same teeth or the same tooth surfaces * Out-of-focus or blurred images * Images that are overexposed, underexposed, or taken under inadequate lighting conditions * Photographs with saliva contamination or other artifacts affecting image quality * Participants who do not complete the evaluation of all images