Apical extrusion of sodium hypochlorite in immature teeth: comparison of three different cleaning protocols

2021 ◽  
Author(s):  
Brenda Ai Refosco Takagi ◽  
Patrícia Maria Poli Kopper ◽  
Luciana Luz ◽  
Simone Bonato Luisi ◽  
Roberta Kochenborger Scarparo
Keyword(s):  
Sodium Hypochlorite ◽  
Immature Teeth ◽  
Apical Extrusion

scholarly journals Apical Extrusion of Debris Produced during Continuous Rotating and Reciprocating Motion

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Giselle Nevares ◽  
Felipe Xavier ◽  
Luciana Gominho ◽  
Flávia Cavalcanti ◽  
Marcely Cassimiro ◽  
...  
Keyword(s):  
Cross Section ◽  
Sodium Hypochlorite ◽  
Reciprocating Motion ◽  
Continuous Motion ◽  
Analytical Balance ◽  
Root Canals ◽  
Apical Extrusion ◽  
Final Weight ◽  
The Difference

This study aimed to analyse and compare apical extrusion of debris in canals instrumented with systems used in reciprocating and continuous motion. Sixty mandibular premolars were randomly divided into 3 groups (n=20): the Reciproc (REC), WaveOne (WO), and HyFlex CM (HYF) groups. One Eppendorf tube per tooth was weighed in advance on an analytical balance. The root canals were instrumented according to the manufacturer’s instructions, and standardised irrigation with 2.5% sodium hypochlorite was performed to a total volume of 9 mL. After instrumentation, the teeth were removed from the Eppendorf tubes and incubated at 37°C for 15 days to evaporate the liquid. The tubes were weighed again, and the difference between the initial and final weight was calculated to determine the weight of the debris. The data were statistically analysed using the Shapiro-Wilk, Wilcoxon, and Mann-Whitney tests (α=5%). All systems resulted in the apical extrusion of debris. Reciproc produced significantly more debris than WaveOne (p<0.05), and both systems produced a greater apical extrusion of debris than HyFlex CM (p<0.001). Cross section and motion influenced the results, despite tip standardization.

scholarly journals Relationship between the size of patency file and apical extrusion of sodium hypochlorite

2009 ◽  
Vol 20 (4) ◽  
pp. 426 ◽  
Author(s):  
IzabelCG Camoes ◽  
MiltonR Salles ◽  
Mourao VieiraM Fernando ◽  
LilianF Freitas ◽  
CinthyaC Gomes
Keyword(s):  
Sodium Hypochlorite ◽  
Apical Extrusion

Evaluation of 4 Different Irrigating Systems for Apical Extrusion of Sodium Hypochlorite

2015 ◽  
Vol 41 (9) ◽  
pp. 1530-1534 ◽  
Author(s):  
Ross A. Yost ◽  
Brian E. Bergeron ◽  
Timothy C. Kirkpatrick ◽  
Mark D. Roberts ◽  
Howard W. Roberts ◽  
...  
Keyword(s):  
Sodium Hypochlorite ◽  
Apical Extrusion

scholarly journals Effect of Passive Ultrasonic Irrigation on Apical Extrusion of Irrigating Solution

2008 ◽  
Vol 02 (03) ◽  
pp. 198-203 ◽  
Author(s):  
Tamer Tasdemir ◽  
Kursat Er ◽  
Davut Celik ◽  
Tahsin Yildirim
Keyword(s):  
Stainless Steel ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Control Group ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Apical Extrusion ◽  
Ultrasonic Irrigation ◽  
The Mean ◽  
Mandibular Incisors

ABSTRACTObjectives: To determine the influence of passive ultrasonic irrigation (PUI) on apical extrusion of irrigating solution.Methods: Twenty freshly extracted maxillary and mandibular incisors with single straight root canals were instrumented with ProTaper rotary files. During final irrigation, the root canals were filled with 2.5% sodium hypochlorite (NaOCl) solution and PUI was performed with a piezoelectronic unit. A stainless steel instrument (size 15) was inserted into the root canal and the irrigant was ultrasonically activated for one minute. This sequence was repeated three times, resultingin a total PUI time of three minutes. The volume of extruded irrigant was measured by Pipetman pipettes. The data were statistically analyzed with the Mann-Whitney U test.Results: The mean volume of apical extruded irrigant was 2.15 �L for the PUI group and 14 �L forthe control group. The experimentalgroup extruded significantly smaller amounts of irrigant than the control group (P<.05).Conclusions: The PUI procedure as a final irrigation was associated with less apical extrusion of the irrigating solution. (Eur J Dent 2008;2:198-203)

scholarly journals Apical Extrusion of Debris and Irrigant using Novel Preparation Systems

2014 ◽  
Vol 15 (4) ◽  
pp. 423-427 ◽  
Author(s):  
Emel Uzunoglu ◽  
Melahat Görduysus
Keyword(s):  
Clinical Significance ◽  
Sodium Hypochlorite ◽  
Gravitational Force ◽  
Bonferroni Correction ◽  
Root Canals ◽  
Apical Extrusion ◽  
Significant Difference ◽  
The Mean

ABSTRACT Aim The aim of this in vitro study was to assess the amount of apically extruded debris and irrigant using Reciproc vs self-adjusting file (SAF) and to investigate the effect, if any, of gravitational force via mandibular and maxillary positioning of the teeth. Materials and methods Forty human mandibular premolars were randomly assigned to four groups of 10 teeth each. The root canals were instrumented according to the manufacturers’ instructions using the Reciproc and SAF. Sodium hypochlorite was used as the irrigant. The apically extruded debris was collected in pre-weighted glass vials using the Myers and Montgomery method, and teeth were placed in vials both in downward and upward positions. After drying, the mean weight of debris was assessed with a microbalance and statistically analyzed using two-way ANOVA with Bonferroni correction. Results All instrumentation techniques and positions caused measurable apical extrusion of debris. A significant difference was observed according to position and instrument used (p < 0.05). The Reciproc extruded significantly more debris than SAF and vial downward position extruded significantly more debris than upward position (p < 0.05). Conclusion Under the conditions of this study, all systems caused apical debris extrusion, especially in the downward position. Clinical significance According to results of this study, the SAF was associated with less debris extrusion compared to the Reciproc in both mandibular and maxillary positions. How to cite this article Uzunoglu E, Görduysus M. Apical Extrusion of Debris and Irrigant using Novel Preparation Systems. J Contemp Dent Pract 2014;15(4):423-427.

Comparison of Apical Extrusion of Sodium Hypochlorite Using 4 Different Root Canal Irrigation Techniques

2015 ◽  
Vol 41 (3) ◽  
pp. 380-384 ◽  
Author(s):  
Emre İriboz ◽  
Koral Bayraktar ◽  
Dilek Türkaydın ◽  
Bilge Tarçın
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Canal Irrigation ◽  
Root Canal Irrigation ◽  
Apical Extrusion

scholarly journals Apical Extrusion of Sodium Hypochlorite using Various Mechanical Activators

2016 ◽  
Vol 7 (3) ◽  
pp. 146-149
Author(s):  
Amulya Vangala ◽  
Saurabh R Doshi ◽  
Anisha Aparadh
Keyword(s):  
Sodium Hypochlorite ◽  
Absorption Spectrometry ◽  
Study Groups ◽  
Group Iv ◽  
Maximum Amount ◽  
Sodium Ion ◽  
Ion Concentration ◽  
Group Iii ◽  
Group I ◽  
Apical Extrusion

ABSTRACT Aim To evaluate the volume of sodium hypochlorite extruded from the apex on using various mechanical activators. Materials and methods Forty extracted single-rooted mandibular premolar teeth were taken. Standardized access opening with chemicomechanical preparation till protaper F3 was done with 2 mL of 5.25% sodium hypochlorite in between instrumentation of each file. The apical patency was checked with 10 K file. The teeth were then divided into four groups: Group I (n = 10) activation was done with #20 side-vented needle; group II (n = 10) activation was done with GP cones; group III (n = 10) activation was done with Irrisafe tips; group IV (n = 10) activation was done with endoactivator. As much as 10 mL of 5.25% sodium hypochlorite has been used with each group to activate the irrigant. The extruded sodium hypochlorite during activation with various systems was been collected in prepared apparatus. The obtained samples were analyzed for sodium ion concentration. Evaluation of the volume of sodium hypochlorite extruded from the apex was analyzed using absorption spectrometry. Then the above results were then statistically analyzed. Results Varying amount of apical extrusion was seen among the above study groups. Minimum amount of apical extrusion was seen with endoactivator. Maximum amount of apical extrusion was seen with needle irrigation followed by GP cones. How to cite this article Vangala A, Doshi SR, Aparadh A, Hegde V. Apical Extrusion of Sodium Hypochlorite using Various Mechanical Activators. World J Dent 2016;7(3):146-149.

scholarly journals Apical extrusion of sodium hypochlorite activated with two laser systems and ultrasonics: a spectrophotometric analysis

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Bağdagül Helvacıoğlu Kıvanç ◽  
Hacer Deniz Arısu ◽  
Nazlı Özge Yanar ◽  
Hülya Mercan Silah ◽  
Recai İnam ◽  
...  
Keyword(s):  
Sodium Hypochlorite ◽  
Spectrophotometric Analysis ◽  
Apical Extrusion ◽  
Laser Systems

scholarly journals Apical extrusion of sodium hypochlorite irrigation during root canal treatment using monoject or hypodermic irrigation needle

2016 ◽  
Vol 15 (4) ◽  
pp. 575-578
Author(s):  
Ahmad Fahmi Ariffin ◽  
Mohd Hafizal Harudin ◽  
S Kanagasingam ◽  
MM Rahman ◽  
WA Wan Noorina
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Medical Science ◽  
In Vitro Study ◽  
Root Canal Treatment ◽  
Hypodermic Needle ◽  
Anterior Teeth ◽  
Diffusion Technique ◽  
Apical Extrusion

Objective: Sodium hypochlorite has been routinely delivered into the pulp canal via irrigation needle. The study aimed at to determine the advantage and disadvantage of apical extrusion of sodium hypochloride using monoject or hypodermic irrigation needle in root canal treatment.Materials and Methods: Eighty single rooted teeth with closed apices were used in this in vitro study to determine apical extrusion of sodium hypochlorite using the gel diffusion technique. Extracted human anterior teeth were used as study samples. Monoject (size 27G) and hypodermic (27G× ½, 0.40×13mm, Terumo Needle) irrigation needle were used. The highest concentration of 5.25% hypochlorite solution was used for irrigation. To standardize the time diffusion of the dye, the gel was photographed at exactly 20 minutes after the initial irrigation with sodium hypochlorite.Results: A total of 36 out of 40 (90%) teeth in the hypodermic needle group showed positive apical extrusion compared to 14 of 40 teeth (35%) in the monoject group regardless of apical size. The discoloration of agar was clearly obtained after the sample tooth had been irrigated with sodium hypochlorite indicating the sign of apical extrusion. It is therefore; recommend that monoject irrigation needle should be used by students regardless of costs during root canal treatment in the polyclinic or dental clinic due to its safety in order to prevent sodium hypochlorite accident.Conclusion: Monoject needle showed significantly less sodium hypochlorite extrusion compared to hypodermic needleBangladesh Journal of Medical Science Vol.15(4) 2016 p.575-578

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