Table 4 Risk of bias of included studies
Author | Sample Size Calculation | Control Group | Cavity Dimensions | Age of patients | Teeth Randomization | Manufacturers Instruction | Single Operator | Blinding of the observer | Thermocycling | Cyclic Loading | Axial Loading Direction | Periodontal Ligament Simulation | Mode of Fracture | ROB Score | ROB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cobankara et al. 2008 [40] | N | Y | Y | N | Y | Y | Y | N | Y | Y | Y | Y | Y | 17 | Low |
Srirekha et al. 2012 [21] | N | Y | Y | N | Y | Y | N | N | Y | N | Y | Y | N | 12 | Moderate |
Khan et al., 2013 [50] | N | Y | Y | N | Y | N | N | N | N | N | Y | N | N | 6 | High |
Kalburge et al., 2013 [23] | N | Y | Y | N | Y | N | N | N | Y | N | Y | N | N | 9 | High |
Costa et al., 2014 [51] | N | Y | Y | N | Y | Y | Y | N | Y | Y | N | Y | Y | 15 | Low |
Kemaloglu et al. 2015 [52] | N | N | Y | N | Y | Y | N | N | Y | N | Y | Y | Y | 13 | Moderate |
Atalay et al. 2016 [26] | N | Y | Y | N | Y | N | Y | N | Y | N | Y | Y | Y | 13 | Moderate |
Bilgi et al. 2016 [44] | N | Y | Y | N | Y | Y | N | N | Y | N | N | Y | N | 10 | Moderate |
Gürel et al. 2016 [45] | N | N | Y | N | Y | N | N | N | N | N | Y | N | Y | 7 | High |
Yasa et al. 2016 [46] | N | Y | Y | N | N | Y | Y | N | N | N | N | N | Y | 8 | High |
Ozsevik et al. 2016 [30] | Y | Y | Y | N | Y | Y | N | N | Y | N | Y | N | N | 11 | Moderate |
Eapen et al. 2017 [53] | Y | Y | Y | N | Y | Y | N | N | N | N | Y | N | Y | 11 | Moderate |
T.G. Garlapati et al. 2017 [48] | N | Y | Y | N | Y | Y | Y | N | Y | N | Y | Y | Y | 15 | Low |
Özyürek et al. 2018 [33] | Y | Y | Y | N | Y | Y | N | N | N | N | Y | Y | Y | 14 | Moderate |
Shah et al. 2020 [34] | N | Y | Y | N | Y | Y | N | N | Y | N | Y | Y | Y | 14 | Moderate |
Donova et al. 2019 [49] | N | Y | Y | N | Y | Y | N | Y | Y | Y | Y | N | Y | 17 | Low |
Frankenberger et al. 2021 [54] | Y | Y | N | N | Y | Y | N | Y | Y | Y | Y | N | Y | 14 | Moderate |
Volom et al. 2023 [35] | Y | Y | Y | Y | N | Y | Y | Y | Y | N | N | Y | N | 16 | Low |