Work is being done to make strong , fully dense nano crystalline hydroxyapatite ceramic materials for orthopedic weight bearing devices , replacing foreign metal and plastic orthopedic materials with a synthetic , but naturally occurring , bone mineral .

Work is being done to make strong , fully dense nano crystalline hydroxapatite ceramic materials for orthopedic weight bearing devices , replacing foreign metal and plastic orthopedic materials with a synthetic , but naturally occurring , bone mineral .
