Mechanical reduction of the bacterial population in the root canal by three instrumentation techniques

Siqueira, José F.; Lima, Kênio Costa de; Magalhães, Fernando Augusto Cintra; Lopes, Hélio Pereira; Uzeda, Milton de

doi:10.1016/s0099-2399(06)81166-0

Cited by 237 publications

(226 citation statements)

References 11 publications

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“…1 However, several authors have shown that oval shaped root canals can hinder proper debridement and disinfection of the dentinal walls. 2,3,4,5,6 The complex anatomy of this type of root canal system favors the persistence of bacteria cells 2 as several portions of the root canal walls remain untouched even after root canal preparation. These untouched Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

Section: Introductionmentioning

confidence: 99%

Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals

et al. 2015

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Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals Abstract: The objective of the present study was to assess the effectiveness of reciprocating instrumentation in disinfecting oval-shaped root canals infected with Enterococcus faecalis. Forty-five human lower premolars were infected with a culture of E. faecalis (ATCC 29212) for 28 days. Five other teeth that were neither contaminated nor instrumented were used as controls. The 45 specimens were divided into three experimental groups (n = 15) based on the root canal preparation technique used: manual (K-type, Dentsply Maillefer, Ballaigues, Switzerland); rotary (MTwo, VDW GmbH, Munich, Germany); and reciprocating (Reciproc R50, VDW GmbH, Munich, Germany) instruments. During chemomechanical preparation, 21 mL of 2.5% NaOCl was used as the irrigating solution. Microbiological sampling was performed before (S1) and immediately after (S2) the chemomechanical preparation using sterilized paper points. Specimens were then cleaved, and 0.02 g of dentine chips was collected from the root thirds to verify the presence of microorganisms in dentinal tubules. All three preparation techniques reduced the number of microorganisms in the root canal lumen and dentine chips from the root thirds, but no significant differences were observed between the three groups (p > 0.05). Reciprocating instrumentation with Reciproc R50 was effective in reducing the number of microorganisms within the root canal system. Although this technique involves the use of only one file to perform the root canal therapy, it is as effective as conventional rotary instrumentation in reducing the E. faecalis biofilm from the root canal system. However, further clinical investigations are warranted in order to ratify these results.

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Section: Introductionmentioning

confidence: 99%

Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals

et al. 2015

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“…Irrigation with sodium hypochlorite was found to be significantly more effective than saline in rendering canals free of bacteria [6]. It has been reported that the mechanical action of instrumentation and irrigation significantly reduced the number of bacterial cells in the root canal irrespective of the technique [7].…”

Section: Single Visit Root Canal Treatmentmentioning

confidence: 99%

Single Visit Root Canal Treatment

Londhe¹,

Garge²

2007

Medical Journal Armed Forces India

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“…Although chemo-mechanical preparation of the root canal system is able to reduce the number of bacteria, complete canal disinfection is difficult because of the internal complexity of root canal systems [1,2]. Thus root canal irrigation forms an integral part of the endodontic therapy to ensure bacterial elimination [3,4] and for the digestion of the organic tissue remnants as it allows for cleaning beyond what might be achieved by root canal instrumentation alone [5,6].…”

Section: Imentioning

confidence: 99%

A Comparison Of The Antibacterial Efficiency Of MTAD (Mixture Of Tetracycline, Citric Acid And Detergent), 2.5% Sodium Hypochlorite And 2% Chlorhexidine Root Canal Irrigants Against Enterococcus Faecalis In Root Canals Of Single Rooted Mandibular Premolars- An In Vitro Study

Bansal¹,

Jain²,

Mittal³

et al. 2013

IOSR-JDMS

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Mechanical reduction of the bacterial population in the root canal by three instrumentation techniques

Cited by 237 publications

References 11 publications

Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals

Ex vivo evaluation of three instrumentation techniques on E. faecalis biofilm within oval shaped root canals

Single Visit Root Canal Treatment

A Comparison Of The Antibacterial Efficiency Of MTAD (Mixture Of Tetracycline, Citric Acid And Detergent), 2.5% Sodium Hypochlorite And 2% Chlorhexidine Root Canal Irrigants Against Enterococcus Faecalis In Root Canals Of Single Rooted Mandibular Premolars- An In Vitro Study

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