Table 1. Bone integration classification of the impacted graft using the Exeter technique, as described by Coon et al ¹² and Azuma et al ¹³ .

Osteointegration classification	Conditions proposed for osteointegration classification
1 –Total graft osteointegration	Total formation of a continuous trabecular template at the interface between the bone graft and the recipient bone, denoting the appearance of a new trabecular pattern similar to a normal bone structure in all areas of the impacted graft, followed by bone tissue reorganization, disappearance of the sclerotic line at the graft–receptor interface, and identical radiodensity between the graft and the receptor bone.
2 –Partial graft osteointegration	Partial formation of a continuous trabecular template at the interface between the bone graft and the recipient bone, denoting the appearance of a new trabecular pattern similar to a normal bone structure in part of the impacted graft, followed by bone tissue reorganization, partial disappearance of the sclerotic line at the graft–receptor interface and partially identical radiodensity between the graft and the receptor bone.
3 –Absence of osteointegration	There was no graft osteointegration.
4 –Inability to evaluate osteointegration	Impossibility to visualize the grafts due to the presence of screens or other prosthetic devices.