Traumatic dental injuries and oral health-related quality of life in children and adolescents with special health care needs in Eastern India: A case-control study.

Aim: This matched case-control study aimed to investigate the prevalence of traumatic dental injuries (TDI) and its impact on oral health-related quality of life (OHRQoL) in hearing and/or visually impaired children attending government special schools in Eastern India.

Methods: A two-step cluster analysis was performed to define cases and controls based on the Parental-Caregivers Perceptions Questionnaire (PCP-Q) scores from the 228 parent/guardian responses. The cases included children with a higher negative impact on OHRQoL (89 subjects), whereas the controls were those with a lower negative impact on OHRQoL (139 subjects).