This has been a recent curiosity of mine… VIOlight Dental Cleanser/Spa, which boasts both sonic and UV technology is said to be ideal for dentures, bite plates, retainers, sport mouthguards, invisible braces, and whitening trays. Does anyone own this for retainer care? I’ve seen several good ratings/feedback on this gadget but wouldn’t mind hearing what others think of this for retainer cleaning. I saw one comment which suggested that cleansing retainers in this particular dental spa is best at maximum twice a week (as per a dental office). I also saw another consumer comment that the “longevity” of VDS is about two years. Not sure if anyone can confirm these things to be true??? Please drop me a comment. I would appreciate your insight very much.