Effect of different obturating techniques and sealers on the removal of filling materials during endodontic retreatment

Athkuri, Srividya; Mandava, Jyothi; Chalasani, Uma; Ravi, Ravichandra; Munagapati, Vamsi Krishna; Chennareddy, Anusha Reddy

doi:10.4103/jcd.jcd_241_19

Cited by 19 publications

(4 citation statements)

References 25 publications

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“…The ambiguity was resolved by discussion with a third reviewer and a total of 12 articles were selected for full-text reading. Out of these articles, 3 did not satisfy the inclusion criteria [72][73][74]. Reviewer agreement was absolute (k = 1).…”

Section: Identification Of Studiesmentioning

confidence: 99%

Complete Obturation—Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies

et al. 2021

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To prevent re-infection and provide a hermetic seal of the root canal system, an endodontist must aim to produce a void-free obturation. This review aimed to compare the completeness of root canal obturation between the two most prevalent methods—cold lateral condensation and warm gutta-percha techniques—using micro-CT (PROSPERO reg no. 249815). Materials and Methods: A search of Scopus, Embase, PubMed (Medline via PubMed), and Web of Science databases was done without any time restriction according to the PRISMA protocol. Articles that compared both techniques and were published in English were included. Data was extracted and the risk of bias was assessed using an adapted tool based on previous studies. Results: A total of 141 studies were identified by the search. Following the screening and selection of articles, 9 studies were included for review. Data was extracted manually and tabulated. Most studies had a moderate risk of bias. None determined operator skill in both methods before comparison. The data extracted from the included studies suggests that both techniques produce voids in the obturation. The thermoplasticized gutta-percha techniques may result in fewer voids compared to cold lateral condensation. Conclusion: Considering the limitations of the included studies, it was concluded that neither technique could completely obturate the root canal. Thermoplasticized gutta-percha techniques showed better outcomes despite a possible learning bias in favor of cold lateral condensation. Establishing operator skills before comparison may help reduce this bias.

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Section: Identification Of Studiesmentioning

confidence: 99%

Complete Obturation—Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies

et al. 2021

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“…[ 20 ] The results of the present study also correlate with findings of another recent study wherein WVC has provided the highest percentage of root-filled area compared to injectable GP and LC and techniques. [ 21 ] As there was a significant difference in sealer penetration depth and adaptation observed for all the three groups, the null hypothesis was rejected based on the results of the present study.…”

Section: Discussionmentioning

confidence: 77%

Influence of obturation technique on penetration depth and adaptation of a bioceramic root canal sealer

et al. 2020

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Aim: Evaluation of the impact of three different obturation techniques on the penetration depth and adaptation of a bioceramic root canal sealer(BioRoot RCS) to root dentin using scanning electron microscope and confocal laser scanning microscope. Materials and Methods: Recently extracted ninety mandibular premolar teeth of similar dimensions (±0.2 mm) with single canals and straight roots were segregated into three experimental groups ( n = 30 each) based on the method of obturation used, i.e., lateral compaction technique, warm vertical compaction technique, and injectable thermoplasticized technique. After obturation, half of the root samples ( n = 15) in each group were sectioned horizontally by hard tissue microtome at 3, 6, and 9 mm, respectively, from root apex for measuring sealer penetration depth with a confocal laser scanning microscope. Longitudinal sections of the samples ( n = 15) were used for measuring the adaptation of sealers to radicular dentin using a scanning electron microscope. Statistical Analysis: Intergroup comparison of sealer penetration depth and adaptation to root dentin was analyzed using one-way ANOVA, and pairwise comparisons were made using Tukey's post hoc test. Results: Warm vertical condensation technique showed deeper root dentin penetration of the sealer. Better adaptation of the sealer to apical root dentin with minimal voids ( P ≤ 0.05) was achieved with warm vertical condensation in comparison to the injectable gutta-percha method and lateral condensation obturating techniques. Conclusion: At all three root levels (coronal, middle, and apical), warm vertical condensation technique exhibited more sealer penetration with minimum gaps, whereas lateral condensation technique exhibited more gaps and less sealer penetration.

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“…[ 6 ] The findings of the present study revealed that no retreatment technique was found to be capable of completely removing the obturating material, which is in accordance with the previous studies. [ 7 8 9 10 ]…”

Section: Discussionmentioning

confidence: 99%

“…Regardless of the technique used, the present study recorded greater remnants in the apical which may be explicated by the fact that both PTUR and NeoEndo-R system has a large taper, which is responsible for cutting more of coronal dentin. Furthermore, due to greater anatomical variations in the apical third region,[ 10 20 ] considerable enlargement is required for effective cleaning and shaping.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of retreatability of bioceramic sealer (BioRoot RCS) and epoxy resin (AH Plus) sealer with two different retreatment files: An in vitro study

et al. 2021

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Aim: The aim of the study was to evaluate and compare the retreatability of BioRoot RCS and AH Plus sealer with two different retreatment file systems using cone-beam computed tomography (CBCT) for assessing the filling remnants. Materials and Methods: A total of sixty mandibular premolars with single and oval root canals were prepared till size F3 and obturated with GP/AH Plus (Group 1) and GP/BioRoot RCS (Group 2). Canals were then retreated using two different retreatment file systems – ProTaper Universal Retreatment (PTUR) system and NeoEndo Retreatment system. The ability to re-establish working length (WL) and apical patency was recorded, and the percentage volume of residual filling material was evaluated using CBCT at the coronal, middle, and apical thirds. Data from the study were analyzed using one-way analysis of variance with Pearson's Chi-squared analysis and the Kruskal–Wallis test. Results: No statistically significant difference was found in the amount of residual sealer (AH Plus and BioRoot RCS) after retreatment throughout the whole study ( P > 0.05) at various root canal levels. Furthermore, the BioRoot RCS group retreated with the PTUR system showed a higher frequency of failure in re-establishing WL and regaining apical patency than the other groups. Conclusion: Complete removal of root canal sealers could not be achieved regardless of the type of sealer used and the retreatment technique employed. Furthermore, in clinical settings, the retreatability of novel BioRoot RCS may be deemed feasible.

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Effect of different obturating techniques and sealers on the removal of filling materials during endodontic retreatment

Cited by 19 publications

References 25 publications

Complete Obturation—Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies

Complete Obturation—Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies

Influence of obturation technique on penetration depth and adaptation of a bioceramic root canal sealer

Comparative evaluation of retreatability of bioceramic sealer (BioRoot RCS) and epoxy resin (AH Plus) sealer with two different retreatment files: An in vitro study

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