Use of Narrow-Diameter Implants in Completely Edentulous Patients as a Prosthetic Option: A Systematic Review of the Literature

Table 5

Risk of bias.

Author	Design	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias
Abbas H. et al.	Prospective; Case series
Aunmeungtong W. et al.	Prospective RCT
El-Sheikh AM et al.	Prospective
Jawad S. et al.	Prospective RCT
Ma et al. a-b	Prospective RCT
Marcello-Machado et al.	Prospective
Morneburg	Retrospective; Cohort
Müller F. et al.	Prospective RCT
Zweers et al.	Retrospective; Cohort