Mobile devices have changed the way we consume all sorts of online content. We now spend more time looking at photos, using maps, playing games, checking the weather and social networking on mobile phones rather than desktop computers
This supports a trend we have been following for a while, the migration of web browsing from desktop to mobile. You can read more here in a Dentalcompare article I wrote.
On the other hand look at this:
The majority 65% of the time spent looking for health information is on a desktop. This indicates that people do serious information searching on their desktop not the phone. Your main web page should be deep and provide the dental information people are looking for while your mobile version should be simple just providing a phone connection and location.