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Article: Histologic Assessment of Debridement of the Root Canal Isthmus of Mandibular Molars by Irrigant Activation Techniques Ex Vivo
Title | Histologic Assessment of Debridement of the Root Canal Isthmus of Mandibular Molars by Irrigant Activation Techniques Ex Vivo |
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Authors | |
Keywords | ultrasonic Apical negative pressure cleaning efficacy sodium hypochlorite manual dynamic agitation tissue dissolution debridement histology |
Issue Date | 2016 |
Citation | Journal of Endodontics, 2016, v. 42, n. 8, p. 1268-1272 How to Cite? |
Abstract | © 2016 American Association of EndodontistsIntroduction This study aimed to evaluate the efficacy of a new irrigation system (EndoIrrigator Plus; Innovations Endo, Nasik, India) using a histologic method ex vivo. Methods Mandibular molars with a normal pulp extracted for periodontal reasons (N = 68) were assessed for the presence of an isthmus using cone-beam computed tomographic imaging. Root canals of the included molars (n = 40) were instrumented up to a ProTaper F2 instrument (Dentsply Maillefer, Baillagues, Switzerland) using 3% sodium hypochlorite as irrigant in a closed apical design. Final irrigation delivery/activation was performed as follows (n = 10): group 1, syringe irrigation; group 2, apical negative pressure delivery with continuous warm activated irrigation and evacuation system (CWAIS); group 3, manual dynamic agitation (MDA); and group 4, passive ultrasonic irrigation (PUI). Untreated teeth (n = 5) served as histologic controls. The isthmus regions (1, 3, and 5 mm from the apex) were analyzed by hematoxylin-eosin stain to calculate the percentage of remaining pulp tissue (RPT) relative to the area of the isthmus. Results were analyzed using the Mann-Whitney U test (P = .05). Results CWAIS showed significantly less RPT than the other groups at all 3 root levels (P < .05). MDA showed significantly less RPT at 1 and 3 mm from the apex compared with PUI and syringe irrigation (P < .05). There was no significant difference between PUI and MDA at the 5-mm level (P > .05). Conclusions None of the methods could completely clean the isthmus. CWAIS left behind the least amount of RPT. |
Persistent Identifier | http://hdl.handle.net/10722/235971 |
ISSN | 2023 Impact Factor: 3.5 2023 SCImago Journal Rankings: 1.356 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Neelakantan, Prasanna | - |
dc.contributor.author | Devaraj, Sharmila | - |
dc.contributor.author | Jagannathan, Nithya | - |
dc.date.accessioned | 2016-11-10T07:11:51Z | - |
dc.date.available | 2016-11-10T07:11:51Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Journal of Endodontics, 2016, v. 42, n. 8, p. 1268-1272 | - |
dc.identifier.issn | 0099-2399 | - |
dc.identifier.uri | http://hdl.handle.net/10722/235971 | - |
dc.description.abstract | © 2016 American Association of EndodontistsIntroduction This study aimed to evaluate the efficacy of a new irrigation system (EndoIrrigator Plus; Innovations Endo, Nasik, India) using a histologic method ex vivo. Methods Mandibular molars with a normal pulp extracted for periodontal reasons (N = 68) were assessed for the presence of an isthmus using cone-beam computed tomographic imaging. Root canals of the included molars (n = 40) were instrumented up to a ProTaper F2 instrument (Dentsply Maillefer, Baillagues, Switzerland) using 3% sodium hypochlorite as irrigant in a closed apical design. Final irrigation delivery/activation was performed as follows (n = 10): group 1, syringe irrigation; group 2, apical negative pressure delivery with continuous warm activated irrigation and evacuation system (CWAIS); group 3, manual dynamic agitation (MDA); and group 4, passive ultrasonic irrigation (PUI). Untreated teeth (n = 5) served as histologic controls. The isthmus regions (1, 3, and 5 mm from the apex) were analyzed by hematoxylin-eosin stain to calculate the percentage of remaining pulp tissue (RPT) relative to the area of the isthmus. Results were analyzed using the Mann-Whitney U test (P = .05). Results CWAIS showed significantly less RPT than the other groups at all 3 root levels (P < .05). MDA showed significantly less RPT at 1 and 3 mm from the apex compared with PUI and syringe irrigation (P < .05). There was no significant difference between PUI and MDA at the 5-mm level (P > .05). Conclusions None of the methods could completely clean the isthmus. CWAIS left behind the least amount of RPT. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Endodontics | - |
dc.subject | ultrasonic | - |
dc.subject | Apical negative pressure | - |
dc.subject | cleaning efficacy | - |
dc.subject | sodium hypochlorite | - |
dc.subject | manual dynamic agitation | - |
dc.subject | tissue dissolution | - |
dc.subject | debridement | - |
dc.subject | histology | - |
dc.title | Histologic Assessment of Debridement of the Root Canal Isthmus of Mandibular Molars by Irrigant Activation Techniques Ex Vivo | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.joen.2016.05.005 | - |
dc.identifier.scopus | eid_2-s2.0-84992365755 | - |
dc.identifier.volume | 42 | - |
dc.identifier.issue | 8 | - |
dc.identifier.spage | 1268 | - |
dc.identifier.epage | 1272 | - |
dc.identifier.isi | WOS:000381232200017 | - |
dc.identifier.issnl | 0099-2399 | - |