Survey and analysis of dental caries in students at a deaf-mute high school.

Wei et al. (2012) visited a high school for deaf students. They counted cavities in every teen they could examine.

They also asked each kid what they knew about brushing and sweets. They did the same checks at a regular hearing high school next door.

More than half the deaf students had active tooth decay. Only about one in seven hearing students did.

The deaf teens knew less about why sugar hurts teeth. They also brushed less often and drank more soda.

Liu et al. (2010) saw the same pattern two years earlier. In that study, special-school kids who let parents brush for them and ate fewer sweets had fewer cavities. The new data show the same risks stick with deaf teens into high school.

Polprapreut et al. (2022) looked at the parent side. They found warm, positive parenting cut unmet dental needs in half for kids with other disabilities. Together the three papers say: teach the teen, but coach the family too.

Critchfield et al. (2003) add one more warning. They showed that adults with Down syndrome living in institutions had worse mouth immunity and more infections. The deaf high-schoolers are not institutionalized, but they still live in a communication bubble. The lesson: check the setting, not just the diagnosis.

If you work with deaf or hard-of-hearing clients, build tooth-brushing into daily living skills. Use visual schedules, model the brush motion, and add a signed reminder before snack time. Share a short note home that praises parent help and lists sugar-free drink swaps. One extra minute of oral-health instruction each week can spare kids pain, missed school, and costly dental surgery later.