The best way to listen to Dentalcast is to automate the process of receiving episodes with a podcast software.

iTunes is the most common music player at this time and you can get Dentalcast directly through iTunes and sync with your iPod device.

Select the Podcast directory, and select the correct feed.

Dentalcast --> Includes audio & video
Dentalcast Audio --> Audio Episodes Only
Dentalcast Video --> Video Episodes Only

If you are using another piece of software besides iTunes you'll need the podcast feed.
There are three choices;

Combined - Audio and Video
Audio Only
Video Only

http://www.dentalcast.net/podcast.xml

http://www.dentalcast.net/podcast_audio.xml

http://www.dentalcast.net/podcast_video.xml