<unk>  is a surgical procedure that replaces missing<unk>  with material from the patient's own body, an artificial, synthetic, or natural substitute.<unk>  is used to repair<unk>  fractures that are extremely complex, pose a significant health risk to the patient, or fail to heal properly.
Bone grafting
Guided bone regeneration
Chondroplasty
Osteo-Odonto-Keratoprosthesis
Wrist drop surgery
Etidronate
Risedronate
Crown lengthening