Intermediate
Technical
In the Industry Vocabulary Test
Allograft
Pronunciation: AL-oh-graft
Bone graft material harvested from genetically different donors of the same species, processed to reduce immunogenic risk.
Full Definition
In oral surgery, an allograft refers to bone graft material obtained from human donors other than the patient, typically processed through freeze-drying, demineralization, or irradiation to minimize immune rejection. Allografts are commonly used in ridge augmentation and sinus floor elevation procedures when autogenous bone is insufficient or when avoiding a second surgical site is preferred. The material provides osteoconductive properties and gradually remodels into the patient's own bone tissue.
Usage
Usage note: Distinguish from autograft (patient's own bone) and xenograft (non-human origin).
In Context
- "The surgeon selected freeze-dried bone allograft to augment the posterior maxilla before implant placement." — Surgical procedure note
- "Contraindications for allograft use include active infection and patient refusal of donor tissue." — Treatment planning documentation
Also known as
allogenic graft
donor bone
Contrasted with
autograft
xenograft
Don't confuse with
autograft
xenograft