n. 1  The act or process of dividing. 2  Cell division. 3  The operation of determining how many times one quantity is contained in another; the inverse of multiplication.
Research is looking at implant reconstruction with a tissue expander using a dermal matrix product to cover the implant compared to using skin and muscle to cover the implant. The dermal matrix essentially forms a âslingâ that helps form a pocket and support the lower portion of the implant, holding it in position.
Implants are permanent, as is a fat transfer, though fat graft does not survive as well in the lips as it does in other areas of the body. Biologic tissue fillers, such as Restylane and Juvederm last anywhere from 4 to 6 months.