•PICO: Does single-visit root canal treatment without calcium hydroxide dressing, compared to multiple-visit treatment with calcium hydroxide dressing for 1 week or more, result in a lower healing (success) rate (as measured by clinical and radiographic interpretation)?
•N= 3 RCT
•Included studies were randomized controlled clinical trials comparing healing rate of single- and multiple-visit root canal treatment in humans. The outcome measured was healing of radiographically detectable lesions.
- Subjects had a noncontributory medical history
- Subjects presented with mature teeth with infected necrotic root canals and radiographic evidence of periapical bone loss.
- All selected root canals had not received any endodontic treatment previously
- Subjects underwent nonsurgical root canal treatment during the study
- The outcome measure was the number of teeth that showed radiographic evidence of healing
Most highlighted Results:
1.No studies demonstrated a statistically significant difference in healing rate (therapeutic efficacy) between single- and multiple-visit treatment.
2.Combining all 3 studies yielded 77% vs 71% healing for single vs multiple visit endodontics, respectively.
The Current best available evidence failed to demonstrate a difference between the two treatment regimens.