How is remodeling of CT?

After formation of scar, it is remodeled to increase strength and contraction, cross linking of collagen and size increase increases strength, shift of collagen from type III to type I (more resilient), may recover 70-80% normal skin in 3 months if well sutured skin wound. Wound contraction increases by myofibroblasts and later by cross-linking of collagen fibers. With time CT degrades and scar shrinks, accomplished by matrix metalloproteinases (MMP)