Fig. 2

The procedure of TC. A A bone window of appropriate size was opened in the area of the lesion. B The tumor tissues were scraped out and the residual cavity wall was polished with different types of scrapers in order. C Dental endoscopy was used to check the residual cavity and the visual-dead corners. D The residual cavity was soaked with anhydrous ethanol for 15 min. E An electric knife was used to cauterize the wall of the residual cavity inch by inch. F In the final rinse, we used gauze to fill the residual cavity and then injected water, so as to better take out the carbonized necrotic tissues on the wall. G Allogeneic bones were compactly inserted into the cavity. H The bone window was reset with plates and screws