When did you last update your practice web site? For most dentists the answer is…I don’t know.
Do the people in the team photo actually work at the practice? Does your homepage have a whitening special from the summer of 2013?
As a general rule websites should be updated at least once a year and the best sites are updated constantly. Google (and other search engines) favor new material.
Then every two to three years you should consider a complete web makeover. Follow the link for some help from TNT.