Infection Control in Retreatment Cases: In Vivo Antibacterial Effects of 2 Instrumentation Systems

Rodrigues, Renata Costa Val; Antunes, Henrique; Neves, Mônica A.S.; Siqueira, José F.; Rôças, Isabela N.

doi:10.1016/j.joen.2015.06.005

Cited by 47 publications

(41 citation statements)

References 43 publications

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“…Therefore, the second null hypothesis was accepted. Although no previous studies have evaluated the reduction/elimination of bacterial by-products by the SAF system, a recent study did not reveal superior results for SAF when compared with conventional rotary instruments in reducing intracanal bacterial counts (Rodrigues et al 2015). According to these authors, the lack of improved effects for the SAF system could be explained by the use of single-rooted and singlecanaled teeth which, from a clinical perspective, are teeth that did not have significant anatomic variations.…”

Section: Discussionmentioning

confidence: 99%

Influence of apical enlargement and complementary canal preparation with the Self‐Adjusting File on endotoxin reduction in retreatment cases

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Influence of apical enlargement and complementary canal preparation with the Self‐Adjusting File on endotoxin reduction in retreatment cases

et al. 2016

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“…This technique may reveal bacteriological conditions only in the main root canal as absorbent paper points do not reach microorganisms located in isthmuses, dentinal tubules, lateral canals and apical ramifications. Bacteria can pass unnoticed by the paper point sampling approach (39). The sampling collection method using paper points might not able to obtain samples that can really represent the bacterial population of the root canal system of infected teeth, which is crucial for the improvement of the treatment protocols (40)(41)(42)(43)(44).…”

Section: Discussionmentioning

confidence: 99%

The Effect of Sodium Hypochlorite and Chlorhexidine as Irrigant Solutions for Root Canal Disinfection: A Systematic Review of Clinical Trials

Gonçalves

Rodrigues

Andrade

et al. 2016

Journal of Endodontics

137

100

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Aims: This systematic review aimed to compare the effectiveness of sodium hypochlorite and chlorhexidine for root canal disinfection during root canal therapy. Methods:A literature search for clinical trials was made on the PUBMED (Medline), Web of Knowledge, SCOPUS, and Science Direct databases and in the reference lists of the identified articles up to January 2015. Quality assessment of the selected studies was carried out according to the CONSORT statement. Results:One clinical trial and four randomized clinical trials (RCTs) were selected from the 172 papers initially identified. There was heterogeneity in the laboratory methods used to assess the root canal disinfection as well as in the concentrations of the irrigants used. Therefore, meta-analysis was not performed. Two studies reported effective and similar reductions in bacterial levels for both irrigants. Sodium hypochlorite was more effective than chlorhexidine to reduce microorganisms in one study and another reported opposite findings. Both root irrigants were ineffective in eliminating endotoxins from necrotic pulp root canals in one study. Trial design and information regarding randomization procedures were not clearly described in the clinical trials. No study compared laboratory results with clinical outcomes. Conclusions:The available evidence on this topic is scarce and the findings of studies were not consistent. Additional RCTs using clinical outcomes to compare the use of sodium hypochlorite and chlorhexidine during root canal therapy are needed.

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“…119,120,121,122 Clinical trials reported no significant supplementary antibacterial effects of PUI. 123,124 Moreover, an outcome study found no superior results for treatment using PUI. 125 Clinical studies on the antibacterial benefits of a final rinse with CHX have also shown inconclusive results.…”

Section: Future Challenge -Reducing Unprepared Areas And/or Improvingmentioning

confidence: 99%

Unprepared root canal surface areas: causes, clinical implications, and therapeutic strategies

et al. 2018

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Chemomechanical preparation is intended to clean, disinfect, and shape the root canal. This step is of utmost importance during treatment of infected teeth with apical periodontitis, because treatment outcome depends on how effectively the clinician eliminates bacteria, their products, and necrotic tissue that would serve as substrate for bacterial regrowth. Nonetheless, curvatures and complex internal anatomical variations of the root canal system can pose a high degree of difficulty in reaching these goals. In infected teeth, bacteria may persist not only in difficult-to-reach areas such as isthmuses, ramifications, dentinal tubules, and recesses from C-shaped or oval/flattened canals, but also in areas of the main canal wall that remain untouched by instruments. If bacteria withstand chemomechanical procedures, there is an augmented risk for post-treatment apical periodontitis. This article discloses the reasons why some areas remain unprepared by instruments and discusses strategies to circumvent this issue and enhance infection control during endodontic treatment/retreatment of teeth with apical periodontitis.

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Infection Control in Retreatment Cases: In Vivo Antibacterial Effects of 2 Instrumentation Systems

Cited by 47 publications

References 43 publications

Influence of apical enlargement and complementary canal preparation with the Self‐Adjusting File on endotoxin reduction in retreatment cases

Influence of apical enlargement and complementary canal preparation with the Self‐Adjusting File on endotoxin reduction in retreatment cases

The Effect of Sodium Hypochlorite and Chlorhexidine as Irrigant Solutions for Root Canal Disinfection: A Systematic Review of Clinical Trials

Unprepared root canal surface areas: causes, clinical implications, and therapeutic strategies

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