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Table 2 Assessment of risk of bias according to The Cochrane Collaboration’s tool for RCTs, the ROBINS-I tool was applied for prospective cohorts, and the Checklist for Case Series from the Joanna Briggs Institute

From: Horizontal augmentation techniques in the mandible: a systematic review

  Random sequence generation Allocation concealment Blinding of participants and personnel Blinding of outcome assessment Incomplete outcome data Selective reporting Other bias
Amorfini et al. + + + + + + +
Nissan et al. ? ? ? ? + + +
Barbu et al. ? ? ? + + + +
Beitlitum et al. + + +
Di Stefano et. al. + + +
Schwartz-Arad et al. + + +
Silva et al. + + +
Urban et al. + + +
  1. +: low, −: high, and ?: unclear risk of bias