Soft molds are fine in the dryer but over a long period of time year or more possibly the material shrinks or hardens. We advise our patients that soft molds need to be changed every two years anyway to make sure the fit is proper. More importantly the tubs need to be changed more often in the dryer every 2 to 3 months come into the office to have the tubes changed.
Thank you
Jeffrey C. Cline
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