A comparison of two techniques for the removal of calcium hydroxide from root canals

Balvedi, Renata Pereira Alves; Versiani, Marco Aurélio; F, Manna; Biffi, João Carlos Gabrielli

doi:10.1111/j.1365-2591.2010.01718.x

Cited by 81 publications

(102 citation statements)

References 27 publications

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“…This is in agreement with results of the previous studies, which showed the presence of CH debris on the root canal walls, regardless of the removal technique (9,11,13,14).…”

Section: Discussionsupporting

confidence: 83%

“…Studies have showed that irrigation with sodium hypochlorite alone is not efficient to remove CH medication (11,12). Alternatively, irrigation with EDTA and recapitulation of the instrumentation with the last file used in the apical preparation (12,13) of rotary instrument or ultrasonic points in conjunction with irrigation has been recommended (11,14).…”

Section: Calcium Hydroxide Intracanal Dressing Removal With Differentmentioning

confidence: 99%

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Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study

et al. 2010

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This study evaluated the efficacy of 2 types of rotary instruments employed in association with sodium hypochlorite (NaOCl) or EDTA in removing calcium hydroxide (CH) residues from root canals dentin walls. Forty-two mandibular human incisors were instrumented with the ProTaper System up to F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA and filled with a CH intracanal dressing. After 7 days, the CH dressing was removed using 4 techniques: NiTi rotary instrument size 25, 0.06 taper (K3 Endo) and irrigation with 17% EDTA (Group 1), NiTi rotary F1 instrument (ProTaper) and irrigation with 17% EDTA (Group 2), NiTi rotary instrument size 25, 0.06 taper and irrigation with 2.5% NaOCl (Group 3) and NiTi rotary F1 instrument and irrigation with 2.5% NaOCl (Group 4). Two roots without intracanal dressing were used as negative controls. Teeth were evaluated by scanning electron microscopy, in the cervical and apical canal thirds. None of the techniques removed the CH dressing completely. In the apical and cervical thirds, F1 instrument was better than instrument size 25, 0.06 taper in removing CH residues (p<0.05), regardless of the final irrigating solution. No difference was found between the irrigating solutions in the groups of F1 instrument and of instrument size 25, 0.06 taper (p>0.05). The negative controls had no CH residues on the dentin walls. In conclusion, the ProTaper F1 instrument was better than K3 Endo instrument size 25, 0.06 taper in the removal of CH intracanal medication, regardless of irrigating solution used.

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“…This is in agreement with results of the previous studies, which showed the presence of CH debris on the root canal walls, regardless of the removal technique (9,11,13,14).…”

Section: Discussionsupporting

confidence: 83%

Section: Calcium Hydroxide Intracanal Dressing Removal With Differentmentioning

confidence: 99%

Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study

et al. 2010

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“…In line with findings reported by previous studies, we showed that PUI left less CH residue than CSI (22,24,30). In contrast to these results, Balvedi et al (31) found that there were no significant differences between PUI and syringe irrigation in terms of CH removal at the apical third.…”

Section: Discussioncontrasting

confidence: 56%

Effectiveness of Various Irrigation Protocols in Removing Calcium Hydroxide from Root Canals

Göktürk¹,

Ozkocak²,

Büyükgebiz³

et al. 2018

meandros

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Anah tarKe li me ler Öz AbstractObjective: The purpose of this study was to investigate the removal efficiency of calcium hydroxide (CH) by CanalBrush, Vibringe, laser-activated irrigation (LAI), conventional syringe irrigation (CSI), XP-endo Finisher, and passive ultrasonic irrigation (PUI) in the root canal walls. Materials and Methods: Ninety-eight human mandibular premolar teeth were prepared. Root canals were filled with CH. The roots were divided into six experimental groups (n=15/group) according to the irrigation protocol used: group 1 (CSI), group 2 (Vibringe), group 3 (CanalBrush), group 4 (XP-endo Finisher), group 5 (PUI), and group 6 (LAI). The amount of residual CH in the canal walls for each canal third was scored. Data were analysed by using Kruskal-Wallis and Bonferroni-correction Mann-Whitney U tests. Results: None of the investigated protocols renders the root canal walls free of CH remnants. Significant differences were found between tooth regions in terms of CH removal (p<0.05), and all groups except group 6 (LAI) showed more residual CH in the apical region. PUI and LAI eliminated significantly more CH than CSI from the middle and apical thirds of the root canal, respectively. Conclusion: The activation of sodium hypochlorite with various devices increased CH removal at the apical and middle part of the canal. LAI and PUI produce better results in the apical and middle thirds, respectively. Amaç: Bu çalışmanın amacı, XP-endo Finisher, Vibringe, lazerle aktive edilmiş irrigasyon (LAİ), geleneksel iğne irrigasyonu (Gİİ) ve pasif ultrasonik irrigasyonun (PUİ) kök kanal duvarlarından kalsiyum hidroksit (KH) uzaklaştırma etkinliğini araştırmaktır. Gereç ve Yöntemler: Doksan sekiz adet alt çene küçük azı dişinin kök kanalları prepare edildi ve KH ile dolduruldu. Kökler, irrigasyon protokolüne göre rastgele altı deney grubuna ayrıldı (n=15/grup): grup 1 (Gİİ), grup 2 (Vibringe), grup 3 (CanalBrush), grup 4 (XP-endo Finisher), grup 5 (PUİ) ve grup 6 (LAİ). Her bir kanal üçlüsü için kanal duvarlarında kalan KH miktarı skorlandı. Veriler, Kruskal-Wallis ve Bonferronidüzeltmeli Mann-Whitney U testleri kullanılarak analiz edildi.

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“…This finding agrees with those of previous studies showing residues on the root canal walls, regardless of the removal technique used. 6,15,16,[27][28][29] To date, few studies have evaluated the influence of rotary instruments on dressing removal. Kenee et al 16 evaluated the amount of calcium hydroxide 17 evaluated the efficacy of the F1 instrument of the ProTaper system, and instrument size 25, 0.06 taper of the K3 System, combined with NaOCl or EDTA, in removing calcium hydroxide from root canal dentin walls.…”

Section: Discussionmentioning

confidence: 99%

“…According to the related literature, the paste composition does not influence the efficiency of mechanical and/or chemical methods in removing residues from root canal walls. 13,28 The final irrigation with 2.5% NaOCl was chosen because 17% EDTA and NaOCl are equally effective for the removal of calcium hydroxide when rotary instruments are used. 6,17 Various methods have been used in endodontic research to investigate the amount of residues on the canal walls.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls

et al. 2012

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The aim of this study was to evaluate the efficacy of three rotary instrument systems (K3, ProTaper and Twisted File) in removing calcium hydroxide residues from root canal walls. Thirty-four human mandibular incisors were instrumented with the ProTaper System up to the F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA, and filled with a calcium hydroxide intracanal dressing. After 7 days, the calcium hydroxide dressing was removed using the following rotary instruments: G1 -NiTi size 25, 0.06 taper, of the K3 System; G2 -NiTi F2, of the ProTaper System; or G3 -NiTi size 25, 0.06 taper, of the Twisted File System. The teeth were longitudinally grooved on the buccal and lingual root surfaces, split along their long axis, and their apical and cervical canal thirds were evaluated by SEM (×1000). The images were scored and the data were statistically analyzed using the Kruskall Wallis test. None of the instruments removed the calcium hydroxide dressing completely, either in the apical or cervical thirds, and no significant differences were observed among the rotary instruments tested (p > 0.05).

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A comparison of two techniques for the removal of calcium hydroxide from root canals

Abstract: Neither syringe injection nor PUI methods were efficient in removing the inter-appointment root canal medicaments. Remnants of medicament were found in all experimental groups regardless of the vehicle used.

Cited by 81 publications

References 27 publications

Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study

Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study

Effectiveness of Various Irrigation Protocols in Removing Calcium Hydroxide from Root Canals

Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls

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