Heat softening earmolds

Among Oticon’s earmold materials is one called Ototherm which is designed to become more flexible as it is heated. They used to use a material called Variotherm that served the same purpose, but they have essentially phased that out. Body heat does get them somewhat flexible, certainly more so than straight acrylic, but not as flexible as silicone, at least in our experience. That’s where a hair dryer is handy, particularly when replacing receivers. Recently, some of Oticon’s Ototherm earmolds have been coming back a little too big, but in general we have not had significant or persistent comfort complaints attributable to the material itself.