Comparison of the Efficiency of Two Novel Guided Bone Regeneration Devices in the Rabbit Calvarial Model

Figure 4

Longitudinal microradiograph section of activated expansible guided bone regeneration (EGBR) and smart guided bone regeneration (SGBR) devices at the 2- and 4-month time points. (a) The EGBR device at the 2-month time point where one side is elevated, and new bone is formed in the space below, atop of the original bone surface. (b) The EGBR device at the 4-month time point shows almost the same microradiographical picture as at the 2-month time point; however, the bone is more abundant. (c) The SGBR device at the 2-month time point where a new layer of bone is formed above the original bone below the silicone sheet. (d) The SGBR device at the 4-month time point shows a similar picture with more abundant bone formation. Scale bar = 4 mm.

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