Background
This study aimed to assess the oral health status of hearing-impaired children in Karachi, Pakistan. It aimed to investigate specific challenges faced by this population and highlight disparities in oral health outcomes.
Methods
The study utilized a cross-sectional design and enrolled hearing-impaired children from various schools in Karachi. Data were collected through a structured questionnaire and clinical examinations. Variables examined included oral hygiene practices, plaque scores, DMFT scores, socioeconomic status, and dietary habits.
Results
Majority of participants were male (53.9%) and aged between 5–20 years. Most participants had mild (23.6%) or moderate (31.6%) hearing impairment, and the mothers had primarily received primary education (27.3%). Sign language was the primary means of communication (64.6%) with the children, and the majority belonged to the lower middle class (33.2%) and lower class (31.4%). The mean Plaque Index score was significantly higher for children with severe deafness compared to those with mild deafness (3.3 ± 1.1 vs. 2.1 ± 0.8, p < 0.05). In primary dentition, children with complete deafness had a significantly higher mean DMFT score compared to those with mild deafness (0.14 ± 0.06 vs. 0.01 ± 0.06, p < 0.05). Similarly, in permanent dentition, children with moderate deafness had a significantly higher mean DMFT score compared to those with mild deafness (0.13 ± 0.12 vs. 0.11 ± 0.07, p < 0.05). Multinomial regression analysis identified significant associations (p < 0.05) between periodontal disease, DMFT and factors such as maternal education, sociodemographic status, brushing frequency, hearing impairment level, and plaque index.
Conclusion
The study emphasizes the specific challenges and disparities in oral health faced by hearing-impaired children in Karachi, Pakistan. Socioeconomic factors, limited access to hearing aids, poor oral hygiene practices, and high sugar consumption contribute to compromised oral health outcomes. The findings underscore the need for targeted interventions, improved oral health education, and increased accessibility to dental care.