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.
In general, fillers (Hyaluronic Acids) last from 6 months to a year. How long fillers last depends on: 1) the amount injected, 2) the location of placement and 3) the number of repeated injections. Placement in areas of motion (nasolabial folds and lips) cause the filler to dissipate more rapidly; whereas, injection in the tear trough region tends to be apparent longer.