Oral-health-related quality of life measures that exist are designed for adults. This study aimed to develop and evaluate the CPQ(11-14), a self-report measure of the impact of oral and oro-facial conditions on 11- to 14-year-old children. An item pool was generated with the use of a literature review and interviews with health professionals, parents, and child patients. The 36 items rated the most frequent and bothersome by 83 children were selected for the CPQ(11-14). Validity testing involved a new sample of 123 children. Test-retest reliability was assessed in a subgroup of these children (n = 65). Mean CPQ(11-14) scores were highest for oro-facial (31.4), lower for orthodontic (24.3), and lowest for pedodontic (23.3) patients. There were significant associations between the CPQ(11-14) score and global ratings of oral health (p < 0.05) and overall well-being (p < 0.01). The Cronbach's alpha and intraclass correlation coefficient for the CPQ(11-14) were 0.91 and 0.90, respectively. These results suggest that the CPQ(11-14) is valid and reliable.

Objectives: The aim of this study was to develop and evaluate the P‐CPQ, a measure of parental/caregiver perceptions of the oral health‐related quality of life of children. This forms one component of the Child Oral Health Quality of Life Questionnaire (COHQOL). Methods: An item pool was developed through a review of existing child health questionnaires and interviews with parents/caregivers of children with pedodontic, orthodontic, and orofacial conditions. The resulting 47 items were used in a study in which 208 parents/caregivers provided data on their frequency and importance. The 31 items rated the most frequent and important were selected for the final questionnaire (P‐CPQ). The P‐CPQ validity and reliability were assessed by a new sample of 231 parents, 79 of whom completed two copies for the assessment of test‐retest reliability. Results: The P‐CPQ discriminated among the three clinical groups included in the expected direction. Within‐group analyses using clinical data provided some evidence that scores were associated with the severity of the condition. The P‐CPQ also showed good construct validity. It had excellent internal consistency reliability with a Cronbach's alpha of 0.94 and demonstrated perfect test‐retest reliability (ICC=0.85). Conclusion: The study provides data to indicate that the P‐CPQ is valid and reliable.

The study provides some data to suggest that child oral and oro-facial conditions have a pervasive impact on the family. The Family Impact Scale had good technical properties. Its evaluative properties need to be tested in longitudinal studies.