“…However, the use of autografts as onlays has drawbacks, such as additional surgery for harvesting, limited availability, donor site morbidity (which includes risk of infection, bleeding, pain, swelling, and damage to nerves and blood vessels), and high resorption rate of the graft [ 5 , 13 ]. To overcome these limitations, bone substitute materials such as allografts [ 8 ], xenografts [ 14 ], and synthetic bone grafts [ 3 , 10 , 15 ] have been introduced.…”