scholarly journals The use of chelating agents with passive ultrasonic irrigation enhances root canal filling sealing ability

2021 ◽  
Vol 62 (2) ◽  
pp. 132-139
Author(s):  
Gisele Jung Franciscatto ◽  
Giampiero Rossi-Fedele ◽  
Manuela Favarin Santini ◽  
Mariana De Carlo Bello ◽  
Minéia Weber Blattes ◽  
...  
Keyword(s):  
Root Canal ◽  
Ethylenediaminetetraacetic Acid ◽  
Control Group ◽  
Root Canal Filling ◽  
Passive Ultrasonic Irrigation ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Ultrasonic Irrigation ◽  
And Control ◽  
Root Canal Instrumentation

The aim of this study was to compare the influence of a final rinse with and without passive ultrasonic irrigation (PUI), using 17% ethylenediaminetetraacetic acid (EDTA) or 10% citric acid (CA), with 2.5% sodium hypochlorite (NaOCl) with PUI, on the sealing ability of root canal fillings. Root canal instrumentation was performed in single-rooted premolars using NaOCl as the irrigant. Subsequently, the roots were randomly allocated into four experimental groups (n=23): EDTA+PUI, EDTA, CA+PUI, CA and control group: NaOCl+PUI. The specimens were root-filled using gutta-percha with a resin-based sealer and inserted into a device to measure glucose leakage at 7 and 30 days. Kruskal-Wallis and Mann- Whitney tests were used to evaluate the differences between the solutions and with or without PUI. Friedman’s ANOVA was used to compare time points (P<0.05). PUI groups showed lower infiltration values (EDTA+PUI 0.74±0.77 and CA+PUI 5.32±1.45) when compared to the groups on which PUI was not performed (EDTA 7.20±2.18 and CA 20.73±4.70), this difference was significant for EDTA (P<0.01) and CA (P=0.000). Also, EDTA showed less glucose infiltration than CA, with or without PUI (P<0.005). NaOCl+PUI showed a higher cumulative glucose infiltration (22.92±9.71). A final rinse using EDTA or CA with PUI enhances the sealing of root canal fillings. EDTA showed less infiltration.

scholarly journals Passive ultrasonic irrigation in calcium hydroxide removal from root canals: a sem/eds analysis

2015 ◽  
Vol 3 (3) ◽  
pp. 668
Author(s):  
Fernanda Hoffmann Busanello ◽  
Angela Longo Do Nascimento ◽  
Lilian Tietz ◽  
Mirela Sangoi Barreto ◽  
Ricardo Abreu Da Rosa ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Root Canal ◽  
Control Group ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Eds Analysis ◽  
Ultrasonic Irrigation ◽  
Calcium Hydroxide Removal ◽  
And Control ◽  
Elementary Chemical

AIM: The aim of this study was to evaluate the efficacy of different lengths of time of passive ultrasonic irrigation (PUI) in removing calcium hydroxide (CH) paste from root canal, using scanning electron microscopy and energy dispersive spectrometry (SEM/EDS). MATERIAL AND METHODS: Fifty-four human premolars were used. After coronal access, a size #15 K-file was used to obtain apical patency. Root canal preparation was performed using WaveOne 40.08 instruments. CH paste was placed into the root canal. Specimens were stored in a humid environment, and after seven days, they were divided into five groups (n=12) according to the irrigation protocols: Manual– a size #40 K-file; PUI/1– 1 min; PUI/2– 2 min; PUI/3– 3 min; and Control– without CH paste. An elementary chemical microanalysis (SEM/EDS) was performed to quantify the presence of calcium on the dentinal walls. RESULTS: The percentage of calcium was higher in all experimental groups when compared to the control group (P < 0.05); but no differences among them were found (P > 0.05). CONCLUSION: The amount of calcium hydroxide paste on the dentinal walls was not dependent on length of time of ultrasonic activation. SEM/EDS analysis seems to be a reliable method to assess CH paste removal from the root canals.

scholarly journals Comparison of different irrigation and agitation methods for the removal of two types of calcium hydroxide medicaments from the root canal wall: An in-vitro study

2017 ◽  
Vol 90 (3) ◽  
pp. 327-332 ◽  
Author(s):  
Deepak Singh Kirar ◽  
Pradeep Jain ◽  
Pallav Patni
Keyword(s):  
Calcium Hydroxide ◽  
Root Canal ◽  
Positive Control ◽  
Positive Control Group ◽  
Control Group ◽  
Passive Ultrasonic Irrigation ◽  
Ultrasonic Irrigation ◽  
Group 2 ◽  
Group 1

Background and aim: Comparison of different irrigation and agitation methods for the removal of two types of calcium hydroxide medicaments from the root canal walls.Methods: Fifty extracted single rooted teeth were selected for this study. After decoronation, the root canals of these teeth were prepared to the size F3 (30 no.) using rotary ProTaper file system. These samples were randomly divided into four groups. Group 1 (n=20) were filled completely with water based calcium hydroxide (CH), Group 2 (n=20) were filled with oil based CH using lentulo spiral, Group 3 (n=5) - the positive control group received the CH as intracanal medication, but no subsequent removal, Group 4 (n=5) - the negative control did not receive CH placement. Further on, Group 1 and Group 2 were divided into four sub-groups (n=5). In sub-group A we performed conventional syringe irrigation with side-vented needle sub-group B) manual dynamic agitation, sub-group C sonic agitation using endoactivator, sub-group D passive ultrasonic irrigation (PUI). Roots were split longitudinally into mesial and distal halves. Digital images of the root canal walls were acquired by a Dental Operating Microscope (DOM) and assessed by using a scoring criteria at different thirds (coronal, middle and apical) of the root canal as follows: score 1, score 2, score 3, and score 4. Data were analyzed applying one-way analysis of variance (ANOVA) and Tukey’s multiple comparison tests at a 95% confidence interval (P < 0.05).Results: Statistically significant differences were not found between the experimental groups and the negative group in any one third of the root canal (P>0.05). However, a difference did exist between the experimental groups and the positive control group (P<0.05). None of the experimental groups totally removed CH substances from root canal walls.Conclusion: Among all experimental groups, removal of CH was best achieved by sonic agitation using endoactivator followed by passive ultrasonic irrigation (PUI), manual dynamic agitation and conventional syringe irrigation with side-vented needle.

scholarly journals Sealing Ability of AH Plus and GuttaFlow Bioseal

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Soo-Hyuk Lee ◽  
Soram Oh ◽  
Adel Saeed Al-Ghamdi ◽  
Ayman Omar Mandorah ◽  
Kee-Yeon Kum ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Root Canal ◽  
Glass Ceramics ◽  
Filling Material ◽  
Root Canal Filling ◽  
Measuring Device ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Ah Plus ◽  
The Mean

The objective of root canal obturation is to achieve a fluid-tight seal. Recently, GuttaFlow bioseal (GB), a root canal sealer composed of polydimethylsiloxane, gutta-percha particles, and bioactive glass ceramics, has been developed, to enhance the sealing ability of root canal filling material. The objective of this study was to assess the sealing ability of GB using a subnanoliter-scaled fluid-flow measuring device and to compare with that of AH Plus (AH). The fluid flow in root canal-filled teeth using either gutta-percha cone (GP) with AH (GAR; n = 10) or GP with GB (GBR; n = 10) and in GP inserted in AH blocks (GA; n = 10) or GP inserted in GB blocks (GB; n = 10) was measured. In addition, fluid flow in sealer blocks of AH (A; n = 10) and GB (B; n = 10), which served as negative controls, was measured. Root canal-filled teeth using GP without any sealer (GR) acted as positive controls (n = 10). The leakage was obtained by calculating the volume of moved water by time (s), after stabilization of the fluid flow was achieved. Statistical analysis was performed using the Kruskal–Wallis test and Mann–Whitney U-test with Bonferroni correction. A p value less than 0.00238 (0.05/21) was considered significantly different. The mean leakages (nL/s) in the groups are as follows: GAR, 0.0958 ± 0.0543; GBR, 0.0223 ± 0.0246; GA, 0.0644 ± 0.0803; GB, 0.0267 ± 0.0182; A, 0.0055 ± 0.0057; B, 0.0052 ± 0.005; and GR, 0.2892 ± 0.3018. The mean leakage in the GBR group was lower than that in the GAR group (p = 0.001), while the mean leakages in the GA and GB groups were not significantly different. GuttaFlow bioseal can be useful in single-cone obturation technique.

scholarly journals Fracture Resistance of Immature Incisors Following Root Filling with Various Bioactive Endodontic Cements Using an Experimental Bovine Tooth Model

2019 ◽  
Vol 13 (02) ◽  
pp. 156-160 ◽  
Author(s):  
Pegah Sarraf ◽  
Mohammad Hossein Nekoofar ◽  
Mohammad Saeed Sheykhrezae ◽  
Paul M. H. Dummer
Keyword(s):  
Root Canal ◽  
Fracture Resistance ◽  
Acrylic Resin ◽  
Control Group ◽  
Control Groups ◽  
Cem Cement ◽  
Filling Materials ◽  
Gutta Percha ◽  
Significant Difference ◽  
And Control

Abstract Objective The aim of this study was to compare the fracture resistance of immature bovine roots when using ProRoot MTA, CEM Cement, and Biodentine as root filling materials. Materials and Methods An immature bovine tooth model was developed by removing the coronal and apical portions of 70 bovine incisors 8 mm above and 12 mm below the cementoenamel junction (CEJ). The specimens were then divided into five groups: ProRoot MTA, CEM Cement, Biodentine, gutta-percha/AH26 sealer, and control. All groups received a 5-mm apical plug with a temporary restorative material. Then, the remaining root canal space was filled with one of the afore-mentioned materials. After setting, the specimens were mounted in acrylic resin. Then, 3 mm coronal to the CEJ from the buccal side of the teeth and at a 135°angle to the long axis, the specimens were loaded until fracture. Results The specimens in the Biodentine (2196 N) and ProRoot MTA (2103 N) groups had significantly greater fracture resistance in comparison to the control group (p = 0.01). No significant difference was found between CEM Cement, gutta-percha and sealer AH26, and control groups. No significant differences occurred between the four experimental groups (p = 0.45). Conclusion Filling the root canal space with ProRoot MTA and Biodentine contributed to higher fracture resistance values.

scholarly journals Comparison of apical sealing ability of resected mineral trioxide aggregate, gutta-percha and a resin-based root canal filling material (resilon)

2011 ◽  
Vol 10 (51) ◽  
pp. 10516-10519
Author(s):  
Froughreyhani Mohammad ◽  
Salem Milani Amin ◽  
Rahimi Saeed ◽  
Shakouie Sahar ◽  
Fateh Somaieh
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Filling Material ◽  
Root Canal Filling ◽  
Gutta Percha ◽  
Sealing Ability

scholarly journals The Effectiveness of 2.5% NaOCl Irrigation and 17% EDTA against the Sealing Ability of Resin Paste

2020 ◽  
Vol 9 (2) ◽  
pp. 105
Author(s):  
Tamara Nitya A ◽  
Nanik Zubaidah ◽  
Moch Mudjiono
Keyword(s):  
Root Canal ◽  
Conventional Technique ◽  
Control Group ◽  
Canal Wall ◽  
Canal Irrigation ◽  
Gutta Percha ◽  
Root Canal Irrigation ◽  
Sealing Ability ◽  
The Mean ◽  
Apical Leakage

Background: Root canal irrigation seeks the elimination of bacteria and its products from the root canal. If debris is left in the root canal, it can prohibit adaptation between obturationmaterial and root canal wall. Therefore, it can decrease the sealing ability of obturation material. Purpose: To assess the effectiveness of 2.5% NaOCl and 17% EDTA on the apical sealing ability of resin obturation paste. Method: The roots of 18 human mandibular premolar teeth were selected and the root canal was prepared using a conventional technique. Samples were irrigated with 2.5% NaOCl, and17% EDTA, and sterile aquadest (Aqua Deastilata) as a control group. Samples were filled with gutta-percha and top seal. Samples were soaked in 2% methylene blue for 48 hours to measure the depth of microleakage. Result: The mean apical leakage after irrigation with 2.5% NaOCl; 17% EDTA; and sterile aquadest in the sequence were 0.92 mm; 3.6 mm; and 8.08 mm. Conclusion: 2.5% NaOClhas less depth of microleakage than 17% EDTA. However, the depth of microleakage cannot demonstrate the exact sealing ability of the resin paste due to some factors.

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 Efficacy of an Organic Solvent and Ultrasound for Filling Material Removal

2013 ◽  
Vol 24 (6) ◽  
pp. 585-590 ◽  
Author(s):  
Gabriela Guardiola Muller ◽  
Anielle Pinheiro Schonhofen ◽  
Patricia Maria Poli Kopper Mora ◽  
Fabiana Soares Grecca ◽  
Marcus Vinicius Reis So ◽  
...  
Keyword(s):  
Root Canal ◽  
Filling Material ◽  
Control Groups ◽  
Passive Ultrasonic Irrigation ◽  
Universal System ◽  
Gutta Percha ◽  
Ah Plus ◽  
Ultrasonic Irrigation ◽  
Post Hoc ◽  
Endodontic Retreatment

The aim of this study was to investigate whether a final rinse with Endosolv R® solvent and ultrasound resulted in cleaner root canal walls during endodontic retreatment. A total of 56 extracted premolar teeth were manually instrumented using a step-back flare technique and filled with gutta-percha and AH Plus sealer. After 9 months, the canals were retreated by removing the gutta-percha and sealer with ProTaper Universal Retreatment and rotary preparation with ProTaper Universal System up to an F5 file. As a final step, the teeth were randomly divided in 4 groups (n=14) and were subjected to passive ultrasonic irrigation (PUI) with either Endosolv R or distilled water. In the control groups, the irrigants were left undisturbed. Roots were cleaved and examined under scanning electron microscopy (SEM), and the amount of filling remnants on the canal walls was assessed by two calibrated examiners in a blinded fashion. Data were analyzed by the Kruskal-Wallis test and the Student-Newman-Keuls post hoc test (α=0.05). All groups presented filling debris in the three root canal thirds after retreatment. There were no significant differences between the groups or among the root canal thirds within each group (p>0.05). PUI with Endosolv R was not effective in the removal of filling debris from root canal walls.

scholarly journals Comparison of Anti-Bacterial Efficacy between Passive Ultrasonic Irrigation and 980 nm-GaAlAs Laser Application in Two Root Types

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 537
Author(s):  
Sung-Eun Yang ◽  
Yong-Min Kim
Keyword(s):  
Root Canal ◽  
Qpcr Assay ◽  
Control Group ◽  
Laser Application ◽  
Passive Ultrasonic Irrigation ◽  
Single Root ◽  
Bonferroni Adjustment ◽  
Canal Surfaces ◽  
Ultrasonic Irrigation ◽  
Group 1

Background and Objectives: The purpose of the present study was to investigate the anti-bacterial efficacy of passive ultrasonic irrigation (PUI) and a 980-nm-gallium-aluminum-arsenide (GaAlAs) laser using a real-time DNA-based quantitative polymerase chain reaction (qPCR) assay and scanning electron microscopy (SEM). Materials and Methods: Eighty-six extracted single- and double-rooted human teeth were used in the experiment. The following four experimental groups were evaluated, as well as a control group: group 1: single root + PUI (n = 20); group 2: single root + laser application (n = 20); group 3: double roots + PUI (n = 20); group 4: double roots + laser application (n =20); control group (n = 6): 3 single roots, 3 double roots. The qPCR assay was performed in three stages to evaluate the efficacy of the adjunctive method against Enterococcus faecalis. SEM analysis was also used to examine the microstructure of root canal surfaces. The data were statistically analyzed using the Friedman test and the Kruskal–Wallis test with Bonferroni adjustment. Results: The decrease in the DNA levels from S1 (before preparation) to S2 (just after preparation) was highly significant in all groups, and decreases in DNA levels from S2 to S3 (after incubation for 1 week) were found in all experimental groups except group 1. An inter-group analysis showed that PUI was significantly more effective in terms of antibacterial efficacy than GaAlAs laser irradiation in single root (p < 0.05). However, in double roots, experimental groups did not show significantly lower DNA levels than the control group (p > 0.05). SEM images showed that cleaning of the root canal surface and reduction of dentin debris were achieved only in single-rooted teeth when using PUI application. Conclusions: Two adjunctive methods were effective in reducing E. faecalis in single rooted tooth.

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