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Optimising single-visit disinfection with supplementary approaches: a quest for predictability
José F Siqueira1, Isabela N Rôças
1Department of Endodontics and Molecular Microbiology Laboratory, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil. jf_siqueira@yahoo.com
Summary
Optimized single-visit disinfection (OSD) aims to reduce bacteria in root canals. Current supplementary OSD methods show potential but lack consistent clinical evidence for predictable bacterial reduction beyond standard procedures.
Area of Science:
- Endodontics
- Microbiology
- Dental Therapeutics
Background:
- Apical periodontitis requires reducing bacterial populations for tissue healing.
- Conventional chemomechanical procedures are standard for root canal disinfection.
- New systems aim to enhance root canal disinfection efficacy.
Purpose of the Study:
- To review supplementary approaches for optimized single-visit disinfection (OSD).
- To evaluate the clinical effectiveness of OSD strategies in endodontic treatment.
Main Methods:
- Review of literature on OSD strategies.
- Focus on final rinses (chlorhexidine, MTAD, iodine potassium iodide), sonic/ultrasonic activation of sodium hypochlorite (NaOCl), and photodynamic therapy.
Main Results:
- Some OSD approaches show potential for improved single-visit disinfection.
- Most current evidence for OSD is of low quality.
- No OSD method consistently reduces bacterial bioburden below conventional procedures.
Conclusions:
- OSD strategies may enhance disinfection but require further clinical validation.
- Current evidence does not support OSD eliminating the need for inter-appointment medication.
- More research is needed to establish predictable OSD protocols for endodontic treatment.
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