Calcium hydroxide paste removal strategies and bond strengths of epoxy‐ and silicate‐based sealers

Silva, Nathalia Cristina Tavella E; Gibin, Janaina Tosta; Rivera, Izabela Cristina Maurício Moris; Rached-Junior, Fuad Jacob Abi; Leoni, Graziela Bianchi; Raucci-Neto, Walter

doi:10.1111/aej.12460

Cited by 14 publications

(5 citation statements)

References 29 publications

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“… 1 Moreover, Ca(OH) 2 resides might prevent the penetration of sealers into dentinal tubules and provide a reduction in bond strength values of epoxy resin AH Plus (Dentsply Sirona, Konstanz, Germany). 2 , 3 …”

Section: Introductionmentioning

confidence: 99%

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Efficacy of five irrigation techniques in removing calcium hydroxide from simulated S-shaped root canals

Shi

Yang

et al. 2022

Journal of Dental Sciences

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Background/purpose Calcium hydroxide [Ca(OH) 2 ], a wildly used intracanal medicament, should be completely removed from the root canal before obturation to avoid negative effects on the treatment. This study evaluated the effectiveness of conventional needle irrigation (CNI), passive ultrasonic activation (PUI), photon-induced photoacoustic streaming (PIPS), XP-endo Finisher (XP) and EDDY for the removal of Ca(OH) 2 from S-shaped root canal. Materials and methods Eighty-four S-shaped root canals in resin blocks were prepared using Protaper Gold up to size #25/0.08 and filled with Ca(OH) 2 . Five groups were established according to the removal techniques (n = 16): CNI, PUI, PIPS, XP and EDDY group. The positive and negative control group (n = 2) were also established. Sodium hypochlorite 3% was used as the irrigant. Digital radiographs were used to measure the remaining Ca(OH) 2 . Statistical analysis of the data was performed by using the Kruskal–Wallis test, followed by Dunn's post hoc test with Bonferroni correction ( α = 0.05). Results All the tested techniques completely removed Ca(OH) 2 from the straight portion and coronal curve of the S-shaped root canal in 100% of cases. Regarding the apical curve, PUI, EDDY, PIPS and XP removed significantly more Ca(OH) 2 than CNI ( P < 0.05), with no significant differences among these four groups ( P > 0.05). The complete clearance of Ca(OH) 2 from the apical curve was observed in 75%, 62.5%, 56.3%, 43.8% and 0% of cases of PUI, EDDY, PIPS, XP and CNI group, respectively. Conclusion Irrigant activation enhanced Ca(OH) 2 removal from the apical region of the S-shaped root canal. CNI was significantly less effective than all activation techniques.

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Section: Introductionmentioning

confidence: 99%

“…The effectiveness of XP-endo Finisher in the removal of Ca(OH) 2 intracanal medicament have been investigated in premolar teeth, simulated internal resorption cavities, and artificial standardized groove. 3 , 10 , 11 …”

Section: Introductionmentioning

confidence: 99%

Efficacy of five irrigation techniques in removing calcium hydroxide from simulated S-shaped root canals

Shi

Yang

et al. 2022

Journal of Dental Sciences

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“…There have been many studies evaluating the removal of calcium hydroxide from root canal irregularities. These studies have shown that irrigation agitation techniques remove more calcium hydroxide than CSI [22][23][24]. However, few studies have evaluated the removal of AH plus and CSBS from root canals by using irrigation agitation systems [12,13].…”

Section: Discussionmentioning

confidence: 99%

Efficacy of different irrigation agitation systems in the removal of root canal sealers from artificial standardised grooves

et al. 2023

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The present study aims to assess the efficacy of different irrigation agitation systems in removing calcium silicate‐based sealers from artificial standardised apical grooves. After the root canal instrumentation of 96 teeth, artificial apical grooves were created in half of each root. The samples were divided into two main groups according to the sealer type (AH Plus Jet [APJ] and Sure‐Seal Root™ [SSR]) (n = 48). The root halves were then reassembled and divided into four experimental groups based on the final irrigation technique used: Conventional Syringe Irrigation (CSI), Ultrasonic Irrigant Agitation (UIA), Sonic Agitation (SA) and Manual Dynamic Agitation (MDA). The roots were then dissembled to assess the amount of root canal sealer. UIA significantly removed more of SSR sealer than CSI, MDA and SA while there was no statistical difference between CSI, MDA, SA and UIA groups in the APJ group. None of the irrigation agitation systems used had completely removed the APJ and SSR sealers. However, UIA was more effective in removing SSR sealer from the standardised apical groove than were CSI, MDA and SA.

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“…Due to different setups and study designs it is not easy to compare certain results between studies. Most studies, however, have in common that they observed difficulties in removing all remnants of CH from root canals [18,19,[25][26][27][28]. Only few studies showed a complete removal [29].…”

Section: Discussionmentioning

confidence: 99%

“…resolution of a sinus tract) or during specific endodontic procedures, such as apexification [12][13][14][15]. Prior to final root canal obturation, however, CH should be fully removed again, because remnants can prevent sealer penetration into dentinal tubules and negatively influence sealing ability and bond strength [16][17][18]. It has been shown, that even in straight single rooted teeth, a standard Syringe Irrigation (SI) technique is not capable of removing CH completely [19].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Different Manual and Sonic Agitation Procedures to Remove Calcium Hydroxide from A 3D Printed Root Canal Model with Artificial Spherical Extensions

Tchorz

2023

JDHOR

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The aim of this study was to evaluate and compare the efficacy of two different needle types and three agitation methods to remove Calcium Hydroxide (CH) from root canals. A total of 75 3D printed root canal models with artificial spherical extensions were produced, filled with CH and radiographs were taken from two directions. Five groups were established (n=15) according to the removal techniques: group 1, Syringe Irrigation (SI); group 2, Eddy Flex Cannula (EFC); group 3, Manual Dynamic Agitation (MDA); group 4, Endo Activator (EA); and group 5, SmartLite Pro Endo Activator (PEA). Sodium hypochlorite (2.5 mL, 5%) served as an irrigant and was agitated for 30 seconds in groups 3-5. After the procedure, additional radiographs were taken and CH remnants were measured. Best results in terms of total CH reduction were observed in the PEA group, followed by EA, MDA, EFC and SI. EA and PEA were significantly more effective than SI and EFC. No technique could achieve complete CH removal.

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Calcium hydroxide paste removal strategies and bond strengths of epoxy‐ and silicate‐based sealers

Cited by 14 publications

References 29 publications

Efficacy of five irrigation techniques in removing calcium hydroxide from simulated S-shaped root canals

Efficacy of five irrigation techniques in removing calcium hydroxide from simulated S-shaped root canals

Efficacy of different irrigation agitation systems in the removal of root canal sealers from artificial standardised grooves

Efficacy of Different Manual and Sonic Agitation Procedures to Remove Calcium Hydroxide from A 3D Printed Root Canal Model with Artificial Spherical Extensions

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