Strategies to reduce the risk of reinfection and cross-contamination in endodontics

Giovarruscio, Massimo; Sauro, Salvatore; Makeeva, Irina; Foschi, Federico

doi:10.1007/s41894-019-0047-7

Cited by 8 publications

(8 citation statements)

References 4 publications

(4 reference statements)

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“…Removal of infected debris from the flutes of files to prevent cross-contamination between root canals if treating a multirooted tooth or simultaneously treating multiple teeth 37…”

Section: Iatrogenic (Nosocomial) Infectionsmentioning

confidence: 99%

Contemporary Cleaning of the Root Canal System

Barnes¹,

Blum

2020

Prim Dent J

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“…Removal of infected debris from the flutes of files to prevent cross-contamination between root canals if treating a multirooted tooth or simultaneously treating multiple teeth 37…”

Section: Iatrogenic (Nosocomial) Infectionsmentioning

confidence: 99%

Contemporary Cleaning of the Root Canal System

Barnes¹,

Blum

2020

Prim Dent J

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“…Prevention of the possibility of irritation of periapical tissues, cross-infections between patients and avoidance of additional introduction of foreign microorganisms into the endodontic space is achieved by sterilization of used, contaminated endodontic instruments before their reuse 10 . About 700 species of microorganisms persist in the oral cavity and reuse of endodontic instruments potentially carries the risk of transmitting bacterial and viral diseases (Fusobacterium nucleatum, Porphiromonas Gingivalis and Streptococcus mutans are the most common bacteria isolated from infected root canals) [10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

“…To be reused, endodontic instruments must undergo a process of cleaning and disinfection because the presence of organic material and debris on the surface can compromise their sterilization 10 . A strict treatment protocol for the instruments used should be followed to eliminate or reduce the risk of cross-contamination between patients as efficiently as possible 5 .…”

Section: Introductionmentioning

confidence: 99%

Comparison of the efficiency of cleaning and disinfection protocols for hand endodontic instruments

et al. 2023

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Background/Aim. There is no standard protocol for cleaning and desinfection of used endodontic instruments before their sterilization and reuse. The aim of this study wss to check the efficiency of the different methods of removing biological debris from different type of used hand stainless steel endodontic instruments. Methods. A total of 120 instruments (forty Kerr-Reamers, Kerr-Files and Hedstr?m-Files) (Shenzhen Denco Medical Co., Ltd. Guangdong, China) ISO 25 were analyzed. The instruments used for root canal treatment on extracted teeth were divided into 4 groups based on different decontamination protocols. The evaluation of the efficiency of the cleaning methods was based on the evaluation of the amount of stained organic residues (Van Gieson staining). Samples were analyzed by stereomicroscopy (X40). Statistical analysis was performed by Mann-Whitney and ANOVAOneWay/Bonfferoni test at a significance level of 5% (? = 0.05). Results. Residual biological debris was observed on 93.33% of all the samples taken. The thermal disinfectant cleaning method showed the lowest contamination values for all types of instruments. The method of mechanical cleaning showed the mean value of Maximum Biologic Contamination (MBC) of the Kerr-Reamers (58.54 %) and Kerr-Files (56.25%) and for Hedstr?m-Files the highest MBC was shown by the ultrasonic method contamination (50.21 %). Conclusion. The use of a thermal disinfectant was the most efficient cleaning method for all three types of hand endodontic instruments.

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“…There is acidic dissolution of dental hard tissues due to breach of microorganisms [ 1 ] through exposed dentinal tubules and cracks in teeth reaching the pulp space, leading to dental infections [ 2 ]. Poor disinfection procedures result in bacterial penetration within the root canal system leading to endodontic failures [ 3 ]. The use of voluminous irrigating solutions is considered pivotal for root canal therapy [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Quaternary ammonium silane (k21) based intracanal medicament triggers biofilm destruction

et al. 2021

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Background Compare antimicrobial efficacy of a quarternary ammonium silane (QAS)/k21 as an intracanal medicament against E. faecalis and C. albicans biofilms formed on root dentin. Methodology Dentin blocks were sterilized and E. faecalis and C. albicans microbial colonies were counted for colony-forming-units against 2%k21, 2%CHX and Ca(OH)2 medicaments. Biofilm colonies after 7 days on dentin were analysed using confocal laser scanning microscopy with live/dead bacterial viability staining. TEM was done to study dentin collagen matrix. Dentin discs from 3rd day and 7th day well plate was used for Raman spectra and observed under fluorescent-microscope. Docking studies were carried out on MMP-2 S1 binding-domain with k21. Results There was reduction of E. faecalis/C. albicans when k21, chlorhexidine and calcium hydroxide were used with highest percentage in 2%k21 treated specimens. 2%k21 showed dense and regular collagen network with intact cross-banding and decreased Raman intensity for 2%k21 on 3rd day. NaOCl + k21 showed least adherence, whereas saline groups showed highest adherence of E. faecalis and C. albicans to root-canal dentin. Alizarin red staining of hDPSCs revealed calcium deposition in all groups with significant difference seen amongst 2%k21 groups. MMP-2 ligand binding was seen accurately indicating possible target sites for k21 intervention. Conclusion 2%k21 can be considered as alternative intracanal medicament.

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Strategies to reduce the risk of reinfection and cross-contamination in endodontics

Abstract: Operative procedures should be carried out to the best practice level to reduce the risk of failure of endodontic treatment. Several operative strategies for eradicating endodontic infection and decreasing the risk of endodontic reinfection are indicated.

Cited by 8 publications

References 4 publications

Contemporary Cleaning of the Root Canal System

Contemporary Cleaning of the Root Canal System

Comparison of the efficiency of cleaning and disinfection protocols for hand endodontic instruments

Quaternary ammonium silane (k21) based intracanal medicament triggers biofilm destruction

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