Fig. 2.

Management of the FD in the alveolar crest of the edentulous site. a, b The occlusal view of the lesion area. The FD in the alveolar crest, the fibrous tissue can be seen inside the bone tissue, and pathological biopsy tissue was obtained by piezoelectric osteotomy. c, d The occlusal view of soft fibrotic bone tissue and curettage of pathological bone tissue using piezoelectric osteotomy. e, f The occlusal and buccal view of the healed lesion area. Uneventful healing and the recovery of interocclusal space. g, h The occlusal view of the healed lesion area. Intact and normal cortical bone texture