scholarly journals Calcium Hydroxide Removal Using Four Different Irrigation Systems: A Quantitative Evaluation by Scanning Electron Microscopy

2021 ◽  
Vol 12 (1) ◽  
pp. 271
Author(s):  
Luigi Generali ◽  
Francesco Cavani ◽  
Federico Franceschetti ◽  
Paolo Sassatelli ◽  
Luciano Giardino ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Positive Control ◽  
Negative Control ◽  
Irrigation Systems ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Ultrasonic Irrigation ◽  
Backscattered Electron ◽  
Calcium Hydroxide Removal ◽  
Scanning Electron

This study compares conventional endodontic needle irrigation, passive ultrasonic irrigation, apical negative pressure irrigation, and mechanical activation to remove calcium hydroxide from single straight root canals. Eighty-four mandibular premolars were prepared in a crown-down manner up to size #40. Two teeth represented a negative control, and another two served as a positive control. Calcium hydroxide paste was placed inside root canals. The remaining eighty samples were analyzed based on the activation techniques, and the cleanliness of the canals was quantified using Fiji’s software on 500× magnified SEM backscattered electron micrographs. Considering the whole canal, all instruments showed better performance than conventional endodontic needle irrigation in removing calcium hydroxide (p < 0.05). Irrisafe and XP-endo Finisher could remove a significantly higher amount of calcium hydroxide than Endovac (p < 0.05). Irrisafe and XP-endo Finisher have been able to remove more calcium hydroxide than EndoVac.

scholarly journals Effect of Various Irrigating Devices on the Removal of Two Different Forms of Calcium Hydroxide from Internal Resorption Cavities

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Nima Mousavi Nasab Mobarakeh ◽  
Afsaneh Taheri ◽  
Hadi Rahmanian ◽  
Dana Jafarpour ◽  
Sareh Rahmanian
Keyword(s):  
Calcium Hydroxide ◽  
Root Resorption ◽  
Positive Control ◽  
Negative Control ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Significant Difference ◽  
Ultrasonic Irrigation ◽  
Analyze Data

The present study aimed to investigate the efficiency of passive ultrasonic irrigation (PUI), EndoActivator (EA), standard needle irrigation (SNI), and XP-endo Finisher files in removing pure calcium hydroxide (pCH) and injectable CH from in vitro root resorption cavities. Using a rotary system, the root canals of 116 extracted single rooted teeth were prepared. Imitated internal resorption cavities were then created in root halves. The specimens were divided into two groups according to the form of CH (n = 58): (I) pCH; (II) injectable CH. The teeth of each group were randomly divided into six subgroups: negative control (n = 5), positive control (n = 5), PUI (n = 12), XP-endo Finisher (n = 12), EA (n = 12), and SNI (n = 12). The root canals were irrigated using NaOCl and EDTA and split longitudinally, and both halves were evaluated with a stereomicroscope. Kruskal–Wallis and Mann–Whitney U tests were used to analyze data. The present results revealed that PUI completely removed pCH in 79% and injectable CH in 70.8% of the internal resorption cavities which was significantly higher than other methods (p<0.05). There was no statically significant difference between different forms of CH in terms of CH removal (p=0.918). The PUI technique was observed as the most efficient method of P-CH and injectable CH removal from a replicated internal resorption cavity. Finally, according to the findings, different forms of CH were comparable in terms of CH removal.

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 In vitro Assessment of Calcium Hydroxide Removal from Endo Blocks by Simple Irrigation with NaOCl and the Passive Ultrasonic Irrigation Technique

2017 ◽  
Vol 54 (1) ◽  
pp. 122-124
Author(s):  
Alexandru Vlasa ◽  
Carmen Biris ◽  
Luminita Lazar ◽  
Anamaria Bud ◽  
Eugen Bud ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Canal System ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Incomplete Removal ◽  
Ultrasonic Irrigation ◽  
Root Canal System ◽  
In Vitro Assessment ◽  
Calcium Hydroxide Removal

Because endodontic pathology is caused due to bacterial contamination of the root canal system, endodontic treatment should focus on eliminating microorganisms in root canals. For more than 70 years Calcium Hydroxide has an important role in antimicrobial endodontic therapy. The use of calcium hydroxide is limited by the incomplete removal thereof, a residue covering 20% to 45% of the ductal wall, even after irrigation with NaOCl or EDTA. This study aims to evaluate the removal of calcium hydroxide in root canals using two different techniques.

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 Efficacy of self-adjusting file and passive ultrasonic irrigation on removing calcium hydroxide from root canals

2013 ◽  
Vol 32 (6) ◽  
pp. 1005-1010 ◽  
Author(s):  
Fuat AHMETOĞLU ◽  
Neslihan ŞİMŞEK ◽  
Ali KELEŞ ◽  
Mevlüt Sinan OCAK ◽  
Kürşat ER
Keyword(s):  
Calcium Hydroxide ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Ultrasonic Irrigation

Does the Use of Use of Continuous or Passive Ultrasonic Irrigation Protocols Improve the Removal of Smear Layer? A Scanning Electron Microscopic Study

2021 ◽  
Author(s):  
Ramón Miguéns-Vila ◽  
Pablo Castelo-Baz ◽  
Saleta Aboy-Pazos ◽  
David Uroz-Torres ◽  
Pablo Álvarez-Nóvoa ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Root Canal ◽  
Smear Layer ◽  
Electron Microscopic ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Scanning Electron Microscopic Study ◽  
Ultrasonic Irrigation ◽  
Conventional Irrigation ◽  
Scanning Electron

Abstract The aim of this study was to evaluate the effectiveness of smear layer removal after the use of different irrigation methods (passive ultrasonic irrigation [PUI], continuous ultrasonic irrigation [CUI], apical negative pressure irrigation and conventional irrigation) using the scanning electron microscopy (SEM) as an analytical tool. A total of 100 single-canal teeth were decoronated and randomly divided into five groups (n = 20) according to the irrigation method used: conventional irrigation with front outlet syringe, conventional irrigation with lateral outlet syringe, apical negative pressure irrigation (EndoVac), PUI with Irrisafe, and CUI with ProUltra PiezoFlow ultrasonic irrigation needle. Root canal preparation was performed with the ProTaper Gold system up to the F4 instrument and 5.25% NaOCl was used as an irrigant. After chemical-mechanical preparation, the roots were split longitudinally, and the coronal, middle and apical thirds examined. SEM digital photomicrographs were taken at ×1000 magnification to evaluate the amount of smear layer in each root canal third. CUI was more effective in removing the smear layer than the other irrigation protocols. However, none of the irrigation protocols were able to produce root canals completely free from smear layer.

scholarly journals Efficacy of different irrigation techniques on calcium hydroxide removal from the root canal

2018 ◽  
Vol 65 (3) ◽  
pp. 148-155
Author(s):  
Vanja Opačić Galić ◽  
Jovana N. Stašić
Keyword(s):  
Calcium Hydroxide ◽  
Root Canal ◽  
Clinical Success ◽  
Negative Control ◽  
Efficient System ◽  
Dentinal Tubules ◽  
Ultrasonic Irrigation ◽  
Calcium Hydroxide Removal ◽  
Post Hoc ◽  
Apical Leakage

Summary Introduction Calcium hydroxide (CH) is a medicament widely used in endodontic treatment due to its antibacterial, regenerative and biocompatible properties. Studies have shown that remaining CH on root canal walls and dentinal tubules can compromise sealer penetration, leading to its weak adhesion, volume change and, consequently, apical leakage. The aim of this study was to compare the efficacy of four different techniques in removing calcium hydroxide from the root canal. Material and Methods 32 extracted single-rooted teeth with one canal were used in this study. The canals were prepared using BioRaCe system (FKG Dentaire, Swiss) BR5 40/.04 with sodium hypochlorite irrigation after each instrument. Longitudinal grooves were formed on the proximal root surfaces. All canals (except negative control) were filled with aqueous CH suspension. After seven days of incubation, the teeth were allocated into the four groups (n=7), plus positive and negative control. Four techniques (systems) for CH removal were tested: conventional syringe irrigation (CSI), passive ultrasonic irrigation (PUI), XP-endo Finisher (FKG Dentaire, Swiss) and Canal Brush (Roeko, Coltene) with irrigation of 5 ml 2% NaOCl and 5 ml 10% citric acid. All the roots were then split into the two halves with chisel and observed under the stereomicroscope (Boeco, Germany) at magnification of 20x. The area with remaining CH on the root canal wall surface was then divided with the total root canal surface area (%). The obtained results were statistically processed using One-way ANOVA and Tukey post-hoc test (p<0.05). Results The most efficient system was XP-endo Finisher with 91.33% of clean surface, followed by PUI 88.36%, Canal Brush 87.83%, and CSI with 66.92%. Conclusion None of the systems completely removed the traces of the medicament from the root canal. For optimal clinical success, it is necessary to combine various systems with copious irrigation.

scholarly journals Evaluation of the efficacy of XP-endo Finisher, Easy Clean, Passive ultrasonic irrigation, and conventional irrigation in the removal of calcium hydroxide in simulated internal root resorption cavities

2021 ◽  
Vol 10 (3) ◽  
pp. e1510313023
Author(s):  
Gabriela Jorge Campos ◽  
Carlos Eduardo da Silveira Bueno ◽  
Rina Andrea Pelegrine ◽  
Ana Grasiela da Silva Limoeiro ◽  
Carlos Eduardo Fontana ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Root Resorption ◽  
Human Teeth ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Continuous Rotation ◽  
Ultrasonic Irrigation ◽  
Belo Horizonte ◽  
Reciprocating Movement ◽  
Conventional Irrigation

This study aimed to evaluate the efficacy of 5 irrigation protocols in removing calcium hydroxide in simulated internal root resorption cavities. Eighteen extracted human teeth, upper anterior and uniradicular, were prepared up to size 50. The teeth were divided longitudinally, and internal root resorption cavities were made by acid demineralization using nitric acid. The same sample was submitted to the five irrigation protocols. The cavities and root canals were filled with Ultracal XS (Ultradent, South Jordan, UT, USA) and stored in an incubator at 37ºC for one week. Afterward, the irrigation protocols were carried out: XP-endo Finisher (XPF; FKG, La Chaux-de-Fonds, Switzerland), passive ultrasonic irrigation (PUI), Easy Clean (Bassi/Easy Equipamentos Odontológicos, Belo Horizonte, Brazil) with reciprocating movement (ECR), Easy Clean with continuous rotation (ECC) and conventional irrigation with a syringe (CI). The solutions used, 2.5% NaOCl, and 17% EDTA, were warmed. The total volume of irrigant used for each sample was 20 mL (10 mL of 2.5% NaOCl, 5 mL of 17% EDTA and 5 mL of distilled water). The amount of calcium hydroxide remaining in the internal resorption after irrigation was assessed using scores. The data were analyzed using the Pearson and Kruskal-Wallis (Dunn) tests. Significantly more calcium hydroxide was removed in the XPF group than all other sample groups (P < 0.0001). XPF was superior to the other methods tested to remove calcium hydroxide in teeth with simulated internal resorptions.

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