scholarly journals A Review Over Benefits and Drawbacks of Combining Sodium Hypochlorite with Other Endodontic Materials

2017 ◽  
Vol 11 (1) ◽  
pp. 661-669 ◽  
Author(s):  
Zahed Mohammadi ◽  
Sousan Shalavi ◽  
Amir Moeintaghavi ◽  
Hamid Jafarzadeh
Keyword(s):  
Antimicrobial Activity ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Smear Layer ◽  
Canal System ◽  
Root Canal Irrigants ◽  
Irrigation Solution ◽  
Root Canal System

Introduction:As the root canal system considered to be complex and unpredictable, using root canal irrigants and medicaments are essential in order to enhance the disinfection of the canal. Sodium hypochlorite is the most common irrigant in endodontics. Despite its excellent antimicrobial activity and tissue solubility, sodium hypochlorite lacks some important properties such as substantivity and smear layer removing ability.Objective:The aim of this review was to address benefits and drawbacks of combining sodium hypochlorite with other root canal irrigants and medicaments.Discussion:According to the reviewed articles, NaOCl is the most common irrigation solution in endodontics. However, it has some drawbacks such as inability to remove smear layer. One of the drawbacks of NaOCl is its inability to remove the smear layer and lack of substantivity.Conclusion:The adjunctive use of other materials has been suggested to improve NaOCl efficacy. Nevertheless, further studies are required in this field.

scholarly journals Endodontic Disinfection for Orthograde Root Canal Treatment in Veterinary Dentistry

2020 ◽  
Vol 37 (1) ◽  
pp. 35-40
Author(s):  
Laura Sasser
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Ethylenediaminetetraacetic Acid ◽  
Endodontic Treatment ◽  
Smear Layer ◽  
Canal System ◽  
Root Canal Therapy ◽  
Complex Anatomy ◽  
Root Canal System ◽  
Necrotic Debris

Pulp debridement and disinfection in the pulp cavity is a critical step in achieving a successful root canal therapy. Microorganisms remaining in the root canal system after endodontic treatment are a main cause of root canal failure. The challenges faced in endodontic disinfection include the complex anatomy of the root canal system, the existence of a biofilm within the root canal, and the creation of a problematic smear layer during instrumentation of the canal. Historically, sodium hypochlorite and ethylenediaminetetraacetic acid have been utilized as irrigants and still remain as the most effective disinfectants due to their synergistic abilities to eradicate microorganisms, dissolve necrotic debris, and remove the smear layer and biofilm. This article addresses challenges in endodontic disinfection, objectives of endodontic irrigants, properties of an ideal irrigant, currently used irrigants, and irrigant delivery systems utilized in veterinary dentistry.

Sodium Hypochlorite Extrusion Accidents: Management and Medico-Legal Considerations

2020 ◽  
Vol 9 (4) ◽  
pp. 59-63
Author(s):  
Shalini Kanagasingam ◽  
Igor R. Blum
Keyword(s):  
Antimicrobial Activity ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Preventive Measures ◽  
Canal System ◽  
Root Canal System

Sodium hypochlorite is considered the most widely used irrigant in endodontics as it exhibits effective antimicrobial activity and has potent tissue-dissolving ability. Whilst it is considered safe when used within the confines of the root canal system, it can cause serious complications when inadvertent periradicular extrusion occurs. This article outlines the complications of sodium hypochlorite extrusion and reviews the appropriate management based on the contemporary evidence. Preventive measures are suggested and the relevant medico-legal considerations are outlined.

scholarly journals Effectiveness of EDTA as the irrigation solution to remove smear layer in root canal

2009 ◽  
Vol 21 (2) ◽  
Author(s):  
Kurniasri Amas Achiar ◽  
Endang Sukartini
Keyword(s):  
Root Canal ◽  
Smear Layer ◽  
Layer Formation ◽  
Canal System ◽  
Pulp Tissue ◽  
Root Canal Filling ◽  
Irrigation Solution ◽  
Root Canal System ◽  
Effective Seal ◽  
Apical Leakage

One of the objectives of successful endodontic treatment is the hermetic obturation of the root canal system. To achieve this, the root canal filling must seal the canal space both apically and coronally to prevent the ingress of microorganisms or tissue fluids into the canal space. Apical leakage is reported a common reason for the clinical failure of endodontic therapy. Leakage through an obturated root canal is expected to take place at interfaces between sealer and dentin or sealer and gutta-percha, or through voids within the sealer. Hence, the sealing quality of root canal filling depends much on the sealing ability of the sealer. Therefore, anything that may influence the adaptation of the root filling to the canal wall is can determine the degree and the extent of leakage, and ultimately the prognosis of the endodontic therapy. In endodontic therapy, the smear layer formation results from root canal preparation and may influence the effective seal of the root canal system. The smear layer formation is mainly composed of inorganic components (dentin debris) and organic materials, such as pulp tissue remnant, bacteria, and blood cells. Removal of the smear layer from the root canal walls before the obturation can reduce the leakage of root canal sealer. To remove the smear layer use 10 ml 17% EDTA followed by 10 ml of 5.25% NaOCl as irrigating solution. This paper discribe about how the effectivity of EDTA as irigating solution to remove the smear layer especially in the apical root canal with many lateral canal to reduce the apical leakage.

scholarly journals Effect of a Surfactant on the Antimicrobial Activity of Sodium Hypochlorite Solutions

2014 ◽  
Vol 25 (5) ◽  
pp. 416-419 ◽  
Author(s):  
Marcos Rodolfo Bolfoni ◽  
Marcelo dos Santos Ferla ◽  
Otávio da Silva Sposito ◽  
Luciano Giardino ◽  
Rogério de Castilho Jacinto ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Root Canal Preparation ◽  
Human Teeth ◽  
Significance Level ◽  
Root Canals ◽  
Tukey Test ◽  
Irrigation Solution ◽  
Period Data

The objective of the present study was to evaluate the antimicrobial activity of sodium hypochlorite (NaOCl) associated with a surfactant. Seventy single-rooted extracted human teeth were inoculated with Enterococcus faecalis, and incubated for 21 days (37 °C). The groups were distributed according to the irrigation solution used during root canal preparation: 5%, 2.5% and 1% NaOCl; 5%, 2.5% and 1% Hypoclean(r), a solution containing a surfactant (cetrimide) associated with NaOCl. Three microbiological samples were collected from each tooth: S1 - before instrumentation; S2 - immediately after instrumentation; and S3 - after a seven-day period. Data were submitted to ANOVA and Tukey test with 5% significance level. The results showed that immediately after root canal preparation (S2), E. faecalis was eliminated in all the experimental groups. However, after 7 days (S3), only the groups in which Hypoclean was used, remained contamination-free, including Hypoclean associated with 1% NaOCl, while the root canals irrigated with 1% NaOCl only, presented the highest percentage of bacterial growth. In conclusion, the addition of surfactant increased the antimicrobial activity of 1% NaOCl to levels similar to 5% NaOCl.

scholarly journals Effect of QMix irrigant in removal of smear layer in root canal system: a systematic review of in vitro studies

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
Margaret Soo Yee Chia ◽  
Abhishek Parolia ◽  
Benjamin Syek Hur Lim ◽  
Jayakumar Jayaraman ◽  
Isabel Cristina Celerino de Moraes Porto
Keyword(s):  
Systematic Review ◽  
Root Canal ◽  
In Vitro Studies ◽  
Smear Layer ◽  
Canal System ◽  
System A ◽  
Root Canal System

scholarly journals The Efficacy of Selected Sodium Hypochlorite Heating Methods for Increasing and Maintaining Its Intracanal Temperature—An Ex Vivo Study

2022 ◽  
Vol 12 (2) ◽  
pp. 891
Author(s):  
Roberto De Santis ◽  
Flavia Iaculli ◽  
Vincenzo Lodato ◽  
Vito Gallicchio ◽  
Michele Simeone ◽  
...  
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Temperature Increase ◽  
Ex Vivo ◽  
Canal System ◽  
Heating Method ◽  
In Vitro Investigation ◽  
Significant Temperature ◽  
Root Canal System ◽  
Different Levels

Background: Enhancement of the temperature of sodium hypochlorite (NaOCl) solution would increase its cleaning potential and decontamination of the root canal system. Therefore, the aim of the present in vitro investigation was to compare the efficacy of different methods of NaOCl heating by evaluating the temperature profiles developed at different levels of the root canal system. Methods: Five thermocouples were applied at different levels of the root canal system of extracted human premolars. NaOCl solution was heated according to two methods: extraoral heating (50 °C, 60 °C, and 70 °C) using a magnetic hotplate heater and intracanal heating by F-06, XF-30/04, and ML-12 pluggers at 100 °C, 150 °C, and 180 °C. Results: The extraoral heating method was ineffective to produce a significant temperature increase at the root apex. Comparable results were obtained using the intracanal heating method through the ML-12 plugger that showed slightly better results only when set at 180 °C. On the other hand, negligible differences were observed in terms of temperature maintenance at several levels of the root between the F-06 and XF-30/04 pluggers, even though the time intervals were higher in case of XF-30/04. Conclusions: The intracanal heating method provided a better temperature persistence in the middle third of the root canal system. Conversely, extraoral heating was ineffective to produce a significant temperature increase at the apex of the root. Comparable results were obtained even using the ML-12 plugger.

scholarly journals Pulp Stone—An Endodontic Challenge: Successful Retrieval of Exceptionally Long Pulp Stones measuring 14 and 9.5 mm from the Palatal Roots of Maxillary Molars

2012 ◽  
Vol 13 (5) ◽  
pp. 719-722 ◽  
Author(s):  
Anand Patil ◽  
Lalita G Nanjannawar ◽  
Girish S Nanjannawar ◽  
Hemanth Vagarali ◽  
Bharath Prathasarathy
Keyword(s):  
Case Report ◽  
Synergistic Effect ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Canal System ◽  
Maxillary Molars ◽  
Root Canal System ◽  
Successful Retrieval ◽  
Pulp Stones

ABSTRACT Pulp stones are nodular, calcified masses commonly appearing in the coronal pulp and occasionally extending in radicular pulp. Retrieval of pulp stones remains a challenge for the endodontist as complete cleaning and shaping of root canal system is the bases for successful endodontic therapy. The aim of this case report is to show the retrieval of long pulp stones measuring 14 and 9.5 mm by utilizing synergistic effect of ultrasonics and sodium hypochlorite from the palatal roots of maxillary molars. Such case has not been reported in the literature so far. How to cite this article Nanjannawar GS, Vagarali H, Nanjannawar LG, Prathasarathy B, Patil A, Bhandi S. Pulp Stone—An Endodontic Challenge: Successful Retrieval of Exceptionally Long Pulp Stones measuring 14 and 9.5 mm from the Palatal Roots of Maxillary Molars. J Contemp Dent Pract 2012;13(5):719-722.

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