The big difference, in my mind, between the two is length: An effective Mission Statement should be no more than a sentence or two, a manifesto can be of indeterminate length.
Trust me, if "Mission Statement" was in vogue in 1848 Marx and Engels would have issued the Communist Mission Statement as a prologue to the Communist Manifesto, which has four sections.
You were a C+ student in HS and became a dentist?
I'd like to read
that manifesto
BTW, a dental office manifesto would be easy, divided into logical sections:
- Your face to the customer: Web presence, greetings on the phone, ease of scheduling, etc.
- Check in experience, the waiting room, transition to care
- Etc.
You get the idea...write/describe the ultimate dental experience in your mind from a patients POV and then try to make it so.