Fig. 2
From: Retrospective comparative clinical study for silk mat application into extraction socket
Measurement of the bony defect. Bony defect is the distance between the cement–enamel junction and the bottom of the bony defect on the distal surface of the second molar. The amount of a bony defect is indicated as a red bar on the panoramic view. a No membrane group before extraction. b No membrane group at 6 months after extraction. c Membrane group before extraction. The patient had bilaterally impacted third molar. In this patient, silk mat was applied to the right side and dPTFE to the left side. d Membrane group at 6 months after extraction