Influence of Volume of Endodontic Irrigants used in Different Irrigation Techniques on Root Canal Dentin Microhardness

Arul, Buvaneshwari; Suresh, Nandini; Sivarajan, Ranjithkumar; Velmurugan, Natanasabapathy

doi:10.4103/ijdr.ijdr_709_18

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…Solutions present in the root canal lumen can affect not only the intended targets, such as microorganisms and components of the smear layer, but also the components of the dentin wall. Aggressive impact on dentin can compromise its physical and mechanical properties, leading to undesirable consequences such as root fracture [19][20][21]. Incorrect and excessive instrumentation of the root canal can increase the likelihood of this complication [22].…”

Section: Discussionmentioning

confidence: 99%

The effect of the irrigation solutions on dentin organic components: Pilot study

Khabadze,

Generalova,

Taptun

et al. 2024

Èndodontiâ today

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INTRODUCTION. Tooth decay and its complications are prevalent dental issues among adults. Endodontic treatment is the standard of care for complicated caries, specifically pulpitis and periodontitis. Endodontic irrigants, which are placed in the root canal lumen for a specific duration, can affect the intracanal dentin structure (organic and inorganic substances) in various ways. The use of polyhexanide-based antiseptic products in endodontics is a promising idea to overcome microbial resistance and minimize microbial-related endodontic treatment failures.AIM. The aim of this study is to investigate the qualitative impact of standard irrigation solutions and a polyhexanide-based composition on the collagen matrix of dentin.MATERIALS AND METHODS. The study investigated the effect of nine solutions on the dentin of the tooth root. Twelve intact maxillary third molars extracted for orthodontic reasons were taken for the study. The teeth were fixed in a 10% neutral formalin solution for at least one day and were decalcinated. 5–10 μm thick sample sections were made and stained with picrosirius (Picrosirius Red, Biovitrum, Russia) before being examined under polarized light. The histological slice was analyzed using a Carl Zeiss (Germany) software and hardware complex based on ZEN v3.0 and light microscope Axioimager M.1. All microphotos were loaded into the Fiji distribution program of ImageJ for microscopy pixel classification.RESULTS. Upon analysis of the diagrams, it appears that there is a lower amount and density of stained dentin collagen array after exposure to sodium hypochlorite solutions of 3% and 1.5%, as well as polyhexanide.CONCLUSIONS. The data obtained from the histogram analyzer of samples stained with picrosirius suggests that polyhexanide may have a qualitative effect on the organic structure of hard tissues, particularly collagen.

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Section: Discussionmentioning

confidence: 99%

The effect of the irrigation solutions on dentin organic components: Pilot study

Khabadze,

Generalova,

Taptun

et al. 2024

Èndodontiâ today

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“…Ultrasonic activation of NaOCl leads to its increased breakdown into highly reactive radicals, which have antimicrobial effects (Wang et al, 2016). Furthermore, UI accompanied by increased irrigation time and higher NaOCl concentrations had a negative effect on the mechanical properties of root dentin (Arul et al, 2021; Elnaggar et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium hypochlorite and ethylenediaminotetraacetic acid activated by laser and ultrasonic energy on surface morphology and chemical composition of intracanal dentin

Katunarić,

Grgac,

Gabrić

et al. 2023

Microscopy Res & Technique

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The aim of the study was to evaluate the structural and chemical changes in intracanal dentin after root canal irrigation with sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid (EDTA) using additional activation with a novel Er:YAG Shock Wave‐Enhanced Emission Photoacoustic Streaming (SWEEPS), ultrasonic irrigation (UI), and Nd:YAG irradiation. Root canals of extracted human premolars were instrumented with distilled water and distributed into groups according to the irrigation protocol used: Group 1: conventional needle irrigation (CI) with 3% NaOCl; group 2: CI with 15% EDTA; and group 3: CI with NaOCl+EDTA. In group 4, root canals were irrigated with NaOCl+EDTA+NaOCl using the following techniques: CI (group 4A), SWEEPS (group 4B), UI (group 4C). In group 4D, root canals were finally irradiated with Nd:YAG laser. After the irrigation, the intracanal dentin sample was collected and analyzed using spectroscope with a Fourier transformation of infrared spectrum in Attenuated total reflection technique (FTIR‐ATR) to calculate apatite/collagen ratio. Scanning electron microscopy (SEM) and energy dispersive x‐ray spectrometry (EDS) were used to determine its chemical composition. FTIR‐ATR showed no significant difference in the phosphate/amid I ratio between the control and the experimental groups (p > 0.05). SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P (p < 0.05) value compared to CI and control group, and canal wall erosion. SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P value and significant canal wall erosion. However, no difference in phosphate/amide ratio was reported among groups.Research Highlights SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P values and significant canal wall erosion. There was no difference in phosphate/amide ratio among the irrigation protocols.

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In vitro analysis of two irrigation activation systems for cleaning mesial canals in lower molars

Gálvez-Saavedra,

Lavalle-Vidal,

Nima

2024

Rev Fac Odontol Univ Antioq

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Introducción: este estudio buscó comparar la eficacia de dos diferentes sistemas de activación endodóntica en la eliminación de detritus de conductos mesiales de molares inferiores por tercios radiculares. Métodos: se prepararon los conductos mesiales de quince primeros molares inferiores humanas con limas, irrigadas con hipoclorito de sodio 2,5 % y EDTA 17 %, y divididas en 3 grupos (n=5) de acuerdo con el tipo de activación: Control: Activación con cono maestro, Ultrasonido: Irrigación ultrasónica (UI) y Ultra X: Irrigación ultrasónica pasiva (PIU). Las raíces fueron seccionadas en tercios (cervical, medio y apical), los conductos radiculares expuestos y preparados para microscopía electrónica de barrido. Se obtuvieron 135 microfotografías (3 microfotografías por cada nivel radicular). Para determinar qué sistema de activación fue más efectivo, todas las imágenes fueron evaluadas por 3 especialistas en endodoncia, previamente calibrados. Los datos fueron analizados con la prueba de Kuskall-Wallis (95 %). Resultados: el sistema PUI fue el más efectivo, seguido por UI y el control que fue el menos eficiente (p<0,001). Se encontraron diferencias significativas entre PUI y los otros sistemas en cada nivel radicular: coronal (p=0,013), medio (p=0,038) y apical (p=0,009). La limpieza de los conductos radiculares disminuyo de cervical a apical en todos los grupos, siendo el grupo UI el mostro un patrón de limpieza más regular en todos los niveles. Conclusión: el sistema PUI fue más eficaz, seguido del UI. La eficacia de los sistemas de activación utilizados disminuye conforme se incrementa la profundidad de trabajo.

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Influence of Volume of Endodontic Irrigants used in Different Irrigation Techniques on Root Canal Dentin Microhardness

Cited by 7 publications

References 28 publications

The effect of the irrigation solutions on dentin organic components: Pilot study

The effect of the irrigation solutions on dentin organic components: Pilot study

Effect of sodium hypochlorite and ethylenediaminotetraacetic acid activated by laser and ultrasonic energy on surface morphology and chemical composition of intracanal dentin

In vitro analysis of two irrigation activation systems for cleaning mesial canals in lower molars

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