Are there different stages of dementia?

There are different types of dementia, but Alzheimer's is the most common. You may want to read this article about the stages:
https://www.agingcare.com/118964
You can also go to www.alz.org or if the dementia isn't Alzheimer's, you can type the name of the dementia in your browser with the word "stages" and you should find what you need.
Carol