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.
1 The surgeon removes the tissue expander from your chest and replaces it with a breast implant. 2  This surgery takes 1 to 2 hours. 3  Before this surgery, you will have talked with your surgeon about the different kinds of breast implants.