Almost everywhere that your practice is listed enables your patients to give you a review. This is a great opportunity strengthen your reputation and enable prospective patients to trust you and your practice.
Reviews can assist new patients, they need to have confidence in knowing that other patients are happy with your practice. Reviews can also help with Search Engine Optimization. If you have "5 Star" ratings on your Google+ page, then your practice will rank higher than your competitors who may have lower reviews. Google wants to provide high-quality content for their users and they know that patients are looking for dentists that they can trust.
Your direct link to Google + review looks like this:
Make sure that you ask your patients to leave you a review as often as you can. You can also link your Google profile review page to your email signature, etc...