1 They do their best work at 55ÂºF, but can carry on right down to 0ÂºF. As they eat away at organic materials, they give off a small amount of heat.  Mesophilic - Second wave of microbial activity. Most of the decomposition in a compost pile is mesophilic.
In general, it is thought that implants last approximately 10 years or should be replaced every eight to 10 years. A ruptured saline implant is clinically obvious as the breast will deflate and there will be great asymmetry. A ruptured silicone implant is more difficult to determine and is referred as a silent rupture.
There is no expiration date for breast implants, and I have seen patients that have had breast implants trouble-free for as many as 30 years. Nonetheless most breast implants are not lifetime devices, and I tell my patients that we hope that their implants will last approximately 15 years on average.