In vitro antimicrobial activity of 0.5%, 1%, and 2.5% sodium hypochlorite in root canals instrumented with the ProTaper Universal system

Câmara, Andréa Cruz; Albuquerque, Manoel Bandeira de; Aguiar, Carlos; Correia, Ana Cristina Regis de Barros

doi:10.1016/j.tripleo.2009.03.037

Cited by 23 publications

(27 citation statements)

References 37 publications

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“…Low-speed diamond burs were used to collect microorganisms in the biofilm adhering to the dentinal walls and inside the dentinal tubules. Consistent with the results reported by Câmara et al, 10 analysis of the dentine chips in the present study revealed the presence of microorganisms in the root canal system in all three groups.…”

Section: Discussionsupporting

confidence: 93%

“…7 To overcome the above-mentioned anatomical and microbial challenges, the disinfection abilities of different substances and procedures have been studied, especially through ex vivo experiments involving E. faecalis biofilm models. 4,6,10,11,12,13,14 In addition, various materials and techniques have been introduced to improve the shaping and disinfection of the root canal system. Since 2008, two innovations including a new type of nickel-titanium (NiTi) alloy and an instrument offering reciprocating movement 15,16,17 have been studied.…”

Section: Introductionmentioning

confidence: 99%

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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: Discussionsupporting

confidence: 93%

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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“…The NaOCl concentration used in this study was 1%, since previous research (17,21) indicates this as the optimal concentration for clinical use. Higher concentrations, according to this research, do not have better bactericidal capacity and lead to a higher degree of aggression to the periapical tissues.…”

Section: Discussionmentioning

confidence: 99%

“…Metodologiju korištenu u ovom istraživanju opisali su Câmara i suradnici (17). Za ovaj pokus upotrijebljene su prilagođene staklene posude s gumenim čepovima.…”

Section: Priprema Eksperimentaunclassified

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Evaluation of Microbial Reduction in Root Canals Instrumented with Reciprocating and Rotary Systems

Oliveira

Aguiar

Câmara

et al. 2015

Acta Stomatol Croat

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Research on Irrigation: Methods and Models

Shen

Gao

Lin

et al. 2015

Endodontic Irrigation

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Irrigation is regarded by many as being the most important part of root canal treatment. It has several different functions and goals depending on the type of the irrigant used: irrigation reduces friction between the instrument and dentin, improves the cutting effectiveness of the fi les, and dissolves organic and inorganic matter. It also cools the tooth and the fi le; it has a washing effect and removes loose debris and bacteria from the canal. Last but not least, irrigation acts against root canal biofi lms. Irrigation is also the only way to impact those areas of the root canal wall not touched by mechanical instrumentation. The factors that remain a challenge in the irrigation and disinfection of the root canal include biofi lm resistance, poor penetration of the irrigant, and exchange of irrigants in the highly complex root canal anatomy. Progress in the search for better irrigants and irrigant delivery is necessary. A variety of different study models have been used in endodontic research on irrigation. One of the issues is how to make a rational choice for a study model that is relevant for the question at hand. This article presents an overview of the methods and models that have been used in endodontic literature to study irrigation.

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In vitro antimicrobial activity of 0.5%, 1%, and 2.5% sodium hypochlorite in root canals instrumented with the ProTaper Universal system

Cited by 23 publications

References 37 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

Evaluation of Microbial Reduction in Root Canals Instrumented with Reciprocating and Rotary Systems

Research on Irrigation: Methods and Models

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