What's the difference between Dentistry and Dental Surgery at university?

I've looked at some websites online comparing universities for dentistry courses, such as the UCAS website, and it shows that some do dentistry as a 5-year course but when I search for the course on the actual university website, it comes up as only dental surgery? The qualifications for both dental surgery and dentistry are 5FT Hon BDS so I was wondering if they are the same thing? Any replies would be helpful, thanks.