scholarly journals Evaluation of 0.5% peracetic acid and 2.5% sodium hypochlorite on smear layer removal of root canal instrumented by three rotary systems

2014 ◽  
Vol 17 (1) ◽  
pp. 62
Author(s):  
Ana Paula Martins Gomes ◽  
Lais Dos Santos Lissi ◽  
Marcella Batista Pavanello Coelho ◽  
Eduardo Galera Da Silva ◽  
Frederico Canato Martinho ◽  
...  
Keyword(s):  
Acid Solution ◽  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Root Canal ◽  
Smear Layer ◽  
Sodium Hypochlorite Solution ◽  
Font Size ◽  
Hypochlorite Solution ◽  
Layer Removal ◽  
Root Canal Irrigants

<p class="western" lang="en-US"><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"><strong>Objective: </strong></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US">The aim of this study was to evaluate the effect of 0.5% peracetic acid solution and 2.5% sodium hypochlorite solution on smear layer removal of root canal walls after rotary instrumentation. </span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"><strong>Material and methods:</strong></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"> Sixty single-rooted human teeth with standardized length had their canals instrumented by three rotary systems (Biorace, MTwo and Endowave), varying the irrigation solution, as follows (n=10): G1- Biorace System + 0.5% peracetic acid solution; G2- Biorace System + 2.5% sodium hypochlorite solution; G3- MTwo System + 0.5% peracetic acid solution; G4- MTwo System + 2.5% sodium hypochlorite solution; G5- Endowave System + 0.5% peracetic acid solution; G6- Endowave System + 2.5% sodium hypochlorite solution. After instrumentation, the roots were cleaved and the dentin walls were evaluated by SEM at x500 and x2000 magnification for assessing the cleaning of the root canals at the cervical, middle and apical thirds. The analyzed area was quantified according to the total number of tubules present and the percentage of open tubules at each region. Data were submitted to statistical analysis by ANOVA and Tukey tests, at the significance level of 5%. </span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"><strong>Results:</strong></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"> There were no statistical significant differences among the experimental groups. In all groups the smear layer removal at cervical and medium thirds was higher than that of apical third. </span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"><strong>Conclusion: </strong></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US">It was concluded that the cleaning obtained at the apical third was lower in all groups studied</span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US">and neither the instrumentation technique nor the irrigating solution was able to promote total smear layer removal from root canal walls.</span></span></span></p><p class="western" lang="en-US"> </p><p class="western" align="JUSTIFY"><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"><strong>KEYWORDS: </strong></span></span></span><span style="font-family: Arial, sans-serif;"><span style="font-size: medium;"><span lang="en-US"> Peracetic acid; Root canal irrigants; Scanning electron microscopy; Sodium hypochlorite.</span></span></span></p>

In vivo evaluation of chlorhexidine gluconate solution and sodium hypochlorite solution as root canal irrigants

1982 ◽  
Vol 8 (5) ◽  
pp. 200-204 ◽  
Author(s):  
A. Michael Ringel ◽  
Samuel S. Patterson ◽  
Carl W. Newton ◽  
Chris H. Miller ◽  
John M. Mulhern
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Chlorhexidine Gluconate ◽  
Sodium Hypochlorite Solution ◽  
In Vivo Evaluation ◽  
Hypochlorite Solution ◽  
Root Canal Irrigants

scholarly journals A Comparative Evaluation of Smear Layer Removal by Using Four Different Irrigation Solutions like Root Canal Irrigants: An In Vitro SEM Study

2021 ◽  
Vol 22 (5) ◽  
pp. 527-531
Author(s):  
Saurabh Mankeliya ◽  
Neha Jaiswal ◽  
Rajnish K Singhal ◽  
Anushri Gupta ◽  
Vivek K Pathak ◽  
...  
Keyword(s):  
Root Canal ◽  
Comparative Evaluation ◽  
Smear Layer ◽  
Layer Removal ◽  
Root Canal Irrigants ◽  
Sem Study

scholarly journals The effect of pH of the sodium hypochlorite on smear layer removal

2010 ◽  
Vol 57 (3) ◽  
pp. 134-140
Author(s):  
Branislav Karadzic ◽  
Nina Dimitrijevic ◽  
Dragica Manojlovic ◽  
Tomislav Trisovic
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Sem Analysis ◽  
Endodontic Treatment ◽  
Smear Layer ◽  
Effect Of Ph ◽  
Canal Irrigation ◽  
Layer Removal ◽  
Ph Values

Introduction. Canal irrigation is an important segment of endodontic treatment. The aim of this study was to assess the efficacy of 0.5% NaOCl solutions of different pH values on smear layer removal. Material and Methods. Thirty-two freshly extracted single rooted teeth with gangrenous pulp were used in the study. The samples were divided into four groups of eight teeth in each. Four solutions of 0.5% NaOCl having pH values 5, 7, 9 and 12 respectively, were used during chemomechanical instrumentation with hand instruments and using step back technique. SEM analysis was done to assess the quality of smear layer removal in apical, middle and coronal part of root canal. Presence and quantity of smear layer and detritus was quantified using the scale from 1 to 5. Results. SEM analysis results showed similar results for 0.5% NaOCl solutions of different pH values in root canal cleaning with no statistically significant differences. Conclusion. The most effective cleaning root canal was achieved with 0.5% NaOCl solution of pH 5.

Comparison of the Clinical Efficacy of 2.5% Non-Heated Sodium Hypochlorite and 2.5% Heated Sodium Hypochlorite as Irrigation to Control Postoperative Pain in Single Visit Root Canal Treatment

2021 ◽  
Vol 15 (8) ◽  
pp. 2220-2223
Author(s):  
Muhammad Waleed ◽  
Farah Tasleem ◽  
Sarwanand . ◽  
Noorullah Jagirani ◽  
Fozia Rajput ◽  
...  
Keyword(s):  
Postoperative Pain ◽  
Clinical Efficacy ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Sodium Hypochlorite Solution ◽  
Hypochlorite Solution ◽  
Single Visit ◽  
Significant Difference ◽  
Reduction Of Pain

Objective: To compare the clinical efficacy of 2.5% non-heated sodium hypochlorite and 2.5% heated sodium hypochlorite as irrigation to control postoperative pain in single visit root canal treatment. Study Design: Comparative analytical study Place and Duration: Operative dentistry department of Liaquat University of Medical and Health Sciences, Jamshoro for 6 months duration from March 2017 to September 2017. Material and Methods: A total of 60 patients with single rooted maxillary and mandibular permanent teeth were randomly allocated into two groups. 30 patients were in group A and treated with non heated sodium hypochlorite solution and 30 patients in group B were treated with 2.5% heated sodium hypochlorite solution. In both groups, the level of pain was measured postoperatively after 48 hours by using Heft Parker visual Analog Scale of 10 and information was collected on Performa. Results: The average age of the patients was 28.62±6.06 years. There were 40(66.7%) male and 20(33.3%) female. Pain was reduced in both groups but there were no significant difference in reduction of pain between groups (p=0.640). Conclusion: Severity of pain was not statistically significant between groups. At 48 hours, Pain was reduced in both groups but there were no significant difference in reduction of pain between groups. Heated sodium hypochlorite to relieve postoperative pain, it should be new trend for recommendation for treatment of irreversible pulpitis in single visit root canal treatment. Key Words: Root canal, Heated sodium hypochlorite, Postoperative pain.

AMINO ACIDS: IV. THE REACTION OF GLYCINE AND β-ALANINE WITH CARBON DISULPHIDE

1958 ◽  
Vol 36 (3) ◽  
pp. 496-506 ◽  
Author(s):  
E. J. Tarlton ◽  
A. F. McKay
Keyword(s):  
Amino Acids ◽  
Hydrogen Peroxide ◽  
Melting Point ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Sodium Hypochlorite ◽  
Carbon Disulphide ◽  
Condensation Product ◽  
Sodium Hypochlorite Solution ◽  
Hypochlorite Solution

Glycine and β-alanine on condensation with carbon disulphide gave the corresponding l,3-di-(carboxyalkyl) thioureas. l,3-Di-(carboxymethyl) thiourea is rearranged to 2-thio-3-(carboxymethyl) hydantoin by warming with hydrochloric acid solution or heating above its melting point. Evidence is presented for the reversible condensation of 2 mole equivalents of the sodium salt of 2-thio-3-(carboxymethyl) hydantoin by the elimination of water. This condensation product is obtained as well-defined pink crystals. l,3-Di-(β-carboxyethyl) thiourea was oxidized with an alkaline solution of hydrogen peroxide or sodium hypochlorite solution to l,3-di-(β-carboxyethyl) urea. l,3-Di-(β-carboxyethyl) thiourea and l,3-di-(β-carboxyethyl) urea have been cyclized by heating with p-toluenesulphonic acid. The products were 2-thio-3-(β-carboxyethyI) hydrouracil and 3-(β-carboxyethyl) hydrouracil respectively.

Effects of Washing and Sanitizing on the Bacterial Flora of Vacuum-Packaged Pork Loins

1983 ◽  
Vol 46 (3) ◽  
pp. 231-234 ◽  
Author(s):  
M. A. CACCIARELLI ◽  
W. C. STRINGER ◽  
M. E. ANDERSON ◽  
H. D. NAUMANN
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Sodium Hypochlorite ◽  
Bacterial Flora ◽  
Acetic Acid Solution ◽  
Storage Life ◽  
Sodium Hypochlorite Solution ◽  
Water Spray ◽  
Bacterial Counts ◽  
Hypochlorite Solution

The bacteriology of boneless pork loins that were either spray-washed (SW) with water, spray-washed and sanitized with a 200 ppm sodium hypochlorite solution (SSCL) or spray-washed with water and sanitized with a 2% acetic acid solution (SSAA) before being vacuum packaged and stored for up to 28 d at 4.0°C was studied. Aerobic, anaerobic and lactobacilli bacterial counts immediately after treatment and at 14, 21 and 28 d were significantly lower on loins receiving the SSAA treatment than loins receiving the SW and SSCL treatment. SSCL loins had lower bacterial counts than untreated controls during 14 d of storage. SW loins had significantly lower bacterial counts than control loins only immediately after treatment. The SSAA treatment resulted in some discoloration. If this discoloration can be prevented, this treatment should be useful in extending the storage life of fresh pork.

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.

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