These images come from the Appointment Book Pro, part of the DentiMax Dental Practice Management Software.  From their website:

DentiMax offers easy-to-use, full-featured dental office software that completely integrates dental practice management, digital imaging and patient clinical charting.

Whether you are looking for easy and inexpensive dental practice management software to simplify your billing and scheduling for patients, or need a complete full-featured system to manage digital imaging and clinical charting, DentiMax has the right software features you need at an amazingly low price.

For more information about the DentiMax Dental Practice Management Software please visit their website which provides a lot more information, screenshots, and even videos.