Objective To observe the effect of bone regeneration guided by collagen membrane and evaluate the mechanism of autogenous bone marrow and membranous space in guided bone regeneration.

• 目的观察胶原膜引导骨再生的效果,探讨胶原膜的理化特性、自体骨髓、膜下空间的维持在引导性骨再生中的作用。