We have updated DentalArt3D software to be compatible with new version of OSX. You can download new version from the same links you received earlier when you purchased the software.
Please, make sure to remove your current program before downloading and installing the new version.
If you haven't updated OSX to Capitan yet, please deactivate DentalArt3D current program, then delete it from your computer. You can now update your OSX to the latest version and then download and install the new DentalArt3D update.
Thank you for your cooperation!