Healing rate and post-obturation pain of single- versus multiple-visit endodontic treatment for infected root canals: a systematic review.

By Su Y, Wang C, Ye L.

Date: 11/2012
Journal: JOE

Summary: 

Purpose: to compare the healing rate and post-obturation pain of single- versus multiple-visit root canal treatment for teeth with infected root canals.

N=10 (RCTs or quasi-RCTs).

Methods/Materials:

The inclusion criteria:

Mature teeth undergoing endodontic treatment presented with infected root canals or radiographic evidence of apical periodontitis.

The outcome measures were in terms of the number of teeth showing radiographic evidence of healing and in terms of incidence of pain.

The observation period in studies was at least 1 year.

Most highlighted Results: 

1.Of the 10 studies, 6 compared the healing rate and 5 compared the prevalence of post-obturation pain in single- and multiple-visit root canal treatment on teeth with infected root canals.

2.No significant difference was observed in the healing rate between single- versus multiple-visit root canal treatment, as well as the incidence of medium-term post-obturation pain.

3.Short-term follow up showed the prevalence of post obturation pain was significantly lower in single-visit than in multiple-visit group.

Clinical significance:  

On the basis of current studies, the healing rate of single- and multiple-visit root canal treatment is similar. Patients experience less frequency of short-term post-obturation pain after single-visit than those having multiple-visit root canal treatment