1 Ideal for ridge augmentation and grafting bony defects missing one or more walls. 2  Titanium frame may be trimmed and shaped to create additional space for bone growth.  Although primary closure is recommended for long healing periods, dense PTFE membrane is impervious to bacteria and can withstand exposure.
Definition of Household Income. Household income is defined as the total income of all members of a household ages 15 and older. Household members do not have to be related to each other. The level of household income is an important underwriting criteria for lenders, as it is an indicator of spending power and a basis for study by private institutions and government.
Depending on your family situation and where you live, average household income can vary dramatically. The average American household income As I mentioned, the overall average household income was $67,565 in 2015.