Table 1.

Classification of biofunctional GBR materials.

Biofunctions of GBR materials	References
Facilitate space maintaining	[19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30]
Facilitate adhesion, migration, and proliferation of osteoblasts	[31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41], [42], [43]
Facilitate migration and differentiation of progenitor cells	,[44], [45], [46], [47], [48], [49], [50], [51], [52], [53], [54], [55], [56], [57], [58], [59], [60], [62], [63], [64], [65], [66], [68], [69], [70]
Induce mineralization	,[71], [72], [73], [74], [81], [82], [83], [86], [87], [88], [89]
Promote vascularization	[90], [91]
Regulate immune behavior to induce osteogenesis	[93], [94], [95]
Suppress infection	[97], [98], [99], [100]
Graded biomimetic membranes	[103], [104], [105], [106], [107]