Table 2 Excluded studies and rationale for exclusion.
Study | Reason for exclusion |
|---|---|
Kidd et al.34 | Colour not recorded |
Weerheijm et al.35 | Hidden caries, not gross occlusal caries |
Kidd et al.36 | Includes secondary caries |
Ayna et al.20 | No results correlating hardness and CFU |
Loesche et al.37 | Incipient caries |
Manji et al.38 | No CFU |
Bönecker et al.39 | No CFU |
Iwami et al.40 | No CFU |
Fusayama et al.41 | No CFU |
Iwami et al.42 | No CFU |
Torii et al.43 | No CFU |
Iwami et al.44 | No CFU |
Nyvad et al.45 | No CFU |
Milnes et al.46 | No CFU |
Nyvad et al.47 | No CFU |
Fejerskov et al.48 | Review Article |
Kidd et al.49 | Review Article |
Takashashi et al.50 | Review Article |
Kidd et al.51 | Secondary Caries |
