Table 4 Contamination of the dental environment by aerosol produced during scaling with ultrasonic scaler
Certainty assessment | Number of patients | Efect | Certainty | Importance | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of studies | Study design | Risk of bias | Inconsistency | Indirect evidence | Imprecision | Other considerations | Before ultrasonic scaling | During ultrasonic scaling | Relative (95% IC) | Absolute (95% IC) | ||
Distance less than or equal to 60 cm from the oral cavity | ||||||||||||
3 | Randomized clinical trials | not serious | not serious | not serious | seriousa | none | 49 | 49 | - | mean 1.06 lower (1.52 higher to 0.66 lower) | ⨁⨁⨁◯ Moderate | IMPORTANT |
Distance greater than or equal to 120 cm from the oral cavity | ||||||||||||
3 | Randomized clinical trials | not serious | not serious | not serious | seriousa | none | 37 | 37 | - | mean 0.87 lower (1.35 higher to 0.39 lower) | ⨁⨁⨁◯ Moderate | IMPORTANT |