Does dysphasia always occur in dementia?

No: It occur with psychiatric, and medical disorders especially with neurological disorder.

Yes: Mostly in the later stage of dementia. There are different types of dysphagia resulting different kind of diet consistency (soft, chopped, puree, blendered) and liquid consistency (nectar, honey).

Perhaps not always,: But 40-50% of dementia patients have trouble swallowing.