Provision of Endodontic Treatment in Dentistry amid COVID-19: A Systematic Review and Clinical Recommendations

Table 1

Quality assessment of included studies (risk of bias).

Risks of bias items	Patel et al. (2020)	Ates et al. (2020)
Was the study’s target population a close representation of the national population in relation to relevant variables, e.g., age, sex, and occupation?	1	1
Was the sampling frame a true or close representation of the target population?	1	1
Was some form of random selection used to select the sample?	0	1
Was the likelihood of nonresponse bias minimal?	1	1
Were data collected directly from the subjects (as opposed to a proxy)?	1	1
Was an acceptable case definition used in the study?	1	1
Was the study instrument that measured the parameter of interest shown to have reliability and validity	1	0
Were the numerator(s) and denominator(s) for the parameter of interest appropriate	0	0
Was the same mode of data collection used for all subjects?	1	1
Total points	7; High	7; High

Summary on the overall risk of study bias: -3, -6, and -9. 0 = yes, low risk; 1 = no, high risk.