Objective : The aim of this study was to investigate the effect of modified polyhydroxybutyrate membranes and polyhydroxybutyrate membranes ( PHBm ) on guided bone regeneration of fresh extract tooth sockets .

目的：探讨采用改性和单聚聚羟基丁酸酯膜（ PHBm）引导拔牙窝骨修复和改建的效果。