Background: Oral health problems can significantly affect children’s daily activities, self-esteem, and overall well-being. This study assessed disparities in clinical oral health status and their impact on daily performances among school children from low and high socio-economic groups in Pune City using the Child-Oral Impacts on Daily Performances (Child-OIDP) index.

Materials and Methods: A descriptive cross-sectional study was conducted among 120 school children aged 10–14 years selected from schools representing different socioeconomic strata. The Child-OIDP questionnaire evaluated oral impacts on daily performances. Data were analyzed using descriptive statistics and correlation tests.

Results: The mean age of participants was 11.38 ± 1.92 years. Mean DMFT and deft scores were 1.61 ± 1.83 and 1.54 ± 2.09, respectively. Eating (56.7%) and cleaning teeth (45.0%) were the most commonly affected daily activities. Dental caries was the leading cause of oral impacts. No statistically significant differences were found in clinical parameters or Child-OIDP scores between low and high socioeconomic groups (p = 0.544). However, female children had significantly higher odds of moderate-to-severe impacts (p = 0.214).