http://floridaprobe.com/pmi.htm Yes, we have a list of known Practice Management dental software and MaxiDent ($595CAD) is the only one that I know of in Canada that charges for the free bridge/link.  Softdent seems to charge sometimes ($1,100), but offices may have purchased a bridge/link for X-ray or other uses and then linking to VoiceWorks is free.  It is rare they start free and then switch without telling us as happened in the MaxiDent case.