Figure 2.

Surgical procedure for guided bone regeneration using a dentin-derived-barrier membrane (DDB). (A) Implants (3.8 mm in diameter, 13 mm in length, Dio, Busan, Korea) were placed with good primary stability. There was a buccal wall defect about 4 mm around the implant. (B) The defect around the implant was filled with autogenous bone graft materials (AutoBT powder, Korea Tooth Bank, Seoul, Korea). (C) The DDB covered the whole defect. The DDB showed a color change after soaking with the patient’s own blood due to the major collagenous nature. (D) The DDB had completely disappeared and was homogeneously incorporated at the graft site by re-entry at 14 weeks for a prosthetic procedure.