Efficacy of different irrigation activation systems on bacterial extrusion

Aydın, Zeliha Uğur; Erdönmez, Demet; Ateş, Melis Oya; Doğan, Tülin

doi:10.1111/aej.12432

Cited by 7 publications

(5 citation statements)

References 30 publications

(48 reference statements)

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“…8 Note that root canals can be irrigated by insertion of solutions into the RCS by means of syringes and needles, 9 or ultrasonic inserts 10,11 and mechanized systems, in line with the concept of apical negative pressure. [12][13][14] Studies have demonstrated increased efficacy of irrigating solutions with the use of ultrasonic inserts. 11,12 Apical negative pressure has also shown promising outcomes when compared to conventional irrigation.…”

Section: Introductionmentioning

confidence: 99%

“…11,12 Apical negative pressure has also shown promising outcomes when compared to conventional irrigation. [12][13][14] The scientific literature highlights that the preparation of oval and flattened canals can be influenced by some characteristics of the instruments, such as design, composition, kinematics, and taper. 15 Heat-treatment of NiTi alloys gives the instruments greater resistance to cyclic fatigue and flexibility.…”

Section: Introductionmentioning

confidence: 99%

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Heat-treated NiTi instruments and final irrigation protocols for biomechanical preparation of flattened canals

et al. 2022

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This study evaluate shaping ability of heat-treated NiTi-alloy instruments associated with different final irrigation protocols in flattened root canals. Thirty human mandibular incisors with flattened root canals were divided into 5 groups (n = 10): (XP) Original Protocol XP-endo Shaper; (XP-WT) Original Protocol XP-endo Shaper with working time variation; (XP-K) XP-endo Shaper with kinematics variation; (XP-WTK) XP-endo Shaper with kinematics and working time variations; (Hyflex) Hyflex CM. For the variation in working time protocols the same sample of the XP-endo Shaper groups with and without kinematic variation were used. To evaluate final irrigation protocols, groups 1, 3 and 5 were submitted to 3 protocols: (NI) No irrigation (n = 2); (CI) conventional irrigation (n = 4), and (EndoVac) irrigation (n = 4). The samples were scanned by microcomputed tomography and prepared for scanning electron microscopy evaluation. Quantitative data were evaluated using the parametric ANOVA test, with statistical significance level set at 5%, and qualitative data obtained were compared to establish the agreement between examiners through the Kappa test. It was observed that in the analysis of XP-endo Shaper protocols, the additional working time did not cause difference in any of parameters evaluated (p > 0.05) in relation to time recommended by manufacturer. Compared to Hyflex, XP-K showed highest mean volume increase (p < 0.05) and lowest percentage of untouched walls (p < 0.05). In the qualitative evaluation, final irrigation protocol with EndoVac provided the best cleaning results when associated with XP-K and with Hyflex. Thus, supplementary techniques are effective tools to enhance cleaning and to promote higher touch of walls during root canal preparation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heat-treated NiTi instruments and final irrigation protocols for biomechanical preparation of flattened canals

et al. 2022

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“…EDDY was found to cause significantly more apical extrusion than ultrasonic, mechanical, and positive pressure agitation techniques [ 35 , 36 ]. Aydınet et al [ 37 ] reported that EDDY resulted in more bacterial extrusion, and there was no difference between EDDY, Standard Needle İrrigation (SNI) and EA in terms of bacterial extrusion. The efficacy of irrigation agents is enhanced by increasing the flow rate during dispersal into the complex root canal system in sonic activations [ 4 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of EDDY and manual dynamic activation techniques on postoperative pain in non-surgical retreatment: a randomized controlled trial

et al. 2023

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Background During non-surgical retreatment process, the products such as dentin debris, root canal fillings, irrigation solutions, microorganisms and remaining pulp tissues can extrude to the apical area and can cause the postoperative pain and flare-up. Thus, the aim of this study was to evaluatethe effect of EDDY and manual dynamic activation (MDA) techniques on postoperative pain (PP) associated with retreatment. Methods Ninety patients scheduled for retreatment were treated at a single visit. Non-vital mandibular premolar teeth diagnosed with asymptomatic apical periodontitis were included in this study. The patients were divided into two groups (n = 45) on the basis of the need for additional irrigation activation procedures (EDDY and MDA). The patients’ post-treatment pain levels were asked to rate the intensity of their pain on a 10-point numerical rating scale (NRS) at the 12th, 24th, 48th, and 72nd h and 7 days.The data were analyzed using the chi-square and Wilcoxon signed-rank test was used for within-group comparisons and Mann Whitney U test was used to compare the groups by time period. Results The difference in postoperative pain intensity between two groups was statistically significant at 12, 24, 48, and 72 h (p < 0.05). There was no significant difference at 7 days. Moreover, no statistically significant difference was found between the two groups in terms of gender and analgesic medication intake (p > 0.05). Pain intensity after the treatment was lesser in the MDA groupthanin the EDDY group at 12, 24, 48, and 72 h. Conclusion This study could lead us to conclude that the two activation systems can be used during endodontic retreatment with no difference at PP 7 days later. However, a comparison of the groups indicated that the EDDY resulted in significantly more PP at 12, 24, 48, and 72 h. Trial registration ClinicalTrials.gov Identifier: NCT04726670.

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“…According to them, the use of a negative pressure system reduced PEP. According to Aydın et al, 21 EndoVac is a reliable irrigation system in terms of bacterial extrusion, and according to Buldur et al, 22 EndoVac has a better performance in removing the smear layer from the apical-thirds of root canals compared to conventional needle irrigation.…”

Section: Discussion On Experimentsmentioning

confidence: 99%

In vitro Study of Temperature Changes on the Outer Root Surface of Extracted Human Teeth Under Different Parameters of Intracanal Cryotherapy

Todorova

Dimitrova

Zagorchev

2023

European Journal of General Dentistry

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Objectives The aim of the present study is to investigate the temperature changes on the outer root surface of extracted human teeth during irrigation with different volumes of solutions at different temperatures. Materials and Methods Thirty premolars extracted for orthodontic or periodontal indications were used for the first experiment and 12 for the second experiment. Root canals were instrumented using WaveOne Gold. Thermosensors were attached to the apical 5 mm and to the middle 5 mm of the outer root surface. Control irrigations with 0.9% NaCl, 2.5% NaOCl, and 17% EDTA at room temperature and experimental irrigations at 2.5°C with 0.9% NaCl, 2.5°C with 2.5% NaOCl, and 2.5°C with 17% EDTA were conducted. Results During the intracanal cryotherapy, a minimum temperature more than 10°C lower than the initial temperature value was reached. There was no significant difference between the lowest temperature values reached in the irrigations carried out with the three irrigation solutions studied. These results indicate that the effect of intracanal cryotherapy can be successfully achieved using all three types of irrigation solutions, i.e., NaOCl, 0.9% NaCl, EDTA. Intracanal cryotherapy needed to last more than 2 minutes to achieve more than 10°C difference with the initial temperature. Conclusions A total of 5 mL of irrigation solution for 5 min is insufficient to achieve a cryotherapeutic effect. A temperature difference of 10°C between initial and lowest temperatures recorded was reached fastest at a volume of 20 mL.

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Efficacy of different irrigation activation systems on bacterial extrusion

Cited by 7 publications

References 30 publications

Heat-treated NiTi instruments and final irrigation protocols for biomechanical preparation of flattened canals

Heat-treated NiTi instruments and final irrigation protocols for biomechanical preparation of flattened canals

Effect of EDDY and manual dynamic activation techniques on postoperative pain in non-surgical retreatment: a randomized controlled trial

In vitro Study of Temperature Changes on the Outer Root Surface of Extracted Human Teeth Under Different Parameters of Intracanal Cryotherapy

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