Assertion: skull's bone | /r/HasProperty | harvested
Facets:
value: from non-essential bones
type: OTHER
Source sentences:
text: Bone can be harvested from non-essential bones, such as from the iliac crest, or more commonly in oral and maxillofacial surgery, from the mandibular symphysis (chin area) or anterior mandibular ramus (the coronoid process); this is particularly true for block grafts, in which a small block of bone is placed whole in the area being grafted.