(b)  

Author, year	Type of testing	Type of histology	Histological parameters analyzed	μ-CT parameters analyzed	Mechanical testing
Cao and Kuboyama, 2010 [46]	μ-CT, bone mineral density (new bone quantity), histology, and biodegradation	Decalcified histology	Area of material in defect, new bone volume/total volume percent material biodegradation	Bone reformation	No
Chu et al., 2007 [72]	Radiograph, μ-CT, and histology	MMC histology	New bone formation	Callus and scaffold volumetric bone mineral density	Four-point bending
Jegoux et al., 2008 [73]	Polarized Light; μ-CT, SEM	Glycol methacrylate	Used thick histology sections for observation under poler	Bioceramic, newly formed bone at the center, and superior and inferior quarter of the implant	No
Guda et al., 2011 [74]	Radiograph, μ-CT, histology	MMC histology	Mineralized bone, fibrous tissue	Bone regeneration patterns, bone density, bone growth profiles, and overall bone volume	Four-point bending
Ignatius et al., 2001 [75]	Mechanical, histology	Undecalcified histology	New bone formation, new soft tissue formation, remaining implant components	No	Compression of 5 × 5 × 3 mm cubes
Jayabalan et al., 2010 [76]	Histology	Resin histology	Foreign body giant cell, bone growth	No	No
Lickorish et al., 2007 [77]	Histology	Decalcified histology	Fibrous tissue formation, bone ingrowth, foreign body reaction	No	No
Rai et al., 2010 [78]	Radiograph, μ-CT, histology	Decalcified histology	Presence of fibroblasts, chondrocytes, woven bone	New bone formation	No
Xu et al., 2011 [25]	Histology; radiography	Decalcified histology	Inflammatory reaction, new bone formation, scaffold resorption	No	No