to my now 4 years old Professional Care 500 is the plastic dissolves. This not only looks unappetizing, it can also be plastic particles easily detach. I do not think this would have jamand in the mouth. If I now a mnoch told this is due to plasticizers in the toothpaste, then I can only shake my head full of frustration. Then yes fuel hoses must formally melt away when petrol running through them. To push the whole thing on the age of the toothbrush, I think also for absurd ... or simply build it for just this period (warranty is over, unit must destruct, customer buys new!). Here are a few links to pictures of the toothbrush: [...]
I find it irresponsible that in times of food scandals and the like it to something like this can still come!
VG Andreas