Effect of root canal irrigant (sodium hypochlorite &amp; saline) delivery at different temperatures and durations on pre-load and cyclic-loading surface-strain of anatomically different premolars

Gulabivala, K; Azam, I.; Mahdavi-Izadi, S.; Palmer, G.; Georgiou, George; Knowles, Jonathan C.; Ng, YL

doi:10.1016/j.jmbbm.2021.104640

Cited by 4 publications

(4 citation statements)

References 52 publications

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“…This is in accordance with a study by Li et al [ 7 ] and another study that reported a decrease, although not statistically significant, of the flexure modulus of dentin irrigated with saline compared to 2% NaOCl [ 20 ]. A possible explanation is that the introduction of saline into the root canal system during a single irrigation cycle might achieve the maximum specific tooth surface strain limit, which would lead to an adverse effect on the subsequent loading strain [ 21 ].…”

Section: Discussionmentioning

confidence: 99%

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Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Barakat,

Almohareb,

Alsuwaidan

et al. 2024

BMC Oral Health

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Background Sodium hypochlorite (NaOCl) is the most efficient root canal irrigant to date. The aim of this study was to compare the effect of NaOCl used at different temperatures and concentrations on the compressive strength of root dentin. Materials and methods Seventy-two extracted human single-canaled straight roots of comparable size and length were selected and randomly divided into six groups (n = 12): Group (A) served as a control with unprepared canals. The other groups were instrumented with rotary ProTaper Universal files up to size F3. Group (B) was irrigated with 1% NaOCl at room temperature, Group (C) with 1% NaOCl heated to 70 °C, Group (D) with 5.25% NaOCl at room temperature, and Group (E) with 5.25% NaOCl heated to 70 °C. Saline was used in Group (F). The roots were sectioned into 2-mm-thick disks that underwent compression testing using a universal testing machine. Data were analyzed using one-way ANOVA and post hoc Tukey tests. The significance level was set at p ≤ 0.05. Results A total of 255 disks were tested. The control group showed the highest compressive strength (p = 0.0112). However, this did not differ significantly from that of heated (p = 0.259) or unheated (p = 0.548) 1% NaOCl. There were no statistically significant differences between the groups of instrumented teeth. Conclusion Within the conditions of this study, irrigation with NaOCl at different concentrations and temperatures during root canal preparation did not affect the compressive strength of root dentin. Clinical Relevance: This study demonstrates that the use of NaOCl as a root canal irrigant is not associated with a clinically relevant decrease in root compressive strength, especially when compared to saline.

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Section: Discussionmentioning

confidence: 99%

“…Previous studies reported that heating NaOCl above room temperature had a negative impact on dentin elastic behavior [ 15 , 21 ]. These studies immersed dentin bars in heated NaOCl, guaranteeing a stable temperature over an extended period of time.…”

Section: Discussionmentioning

confidence: 99%

Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Barakat,

Almohareb,

Alsuwaidan

et al. 2024

BMC Oral Health

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“…When NaClO solution is used to irrigate the affected root canal, a reduction reaction can also take place to form an HClO oxidant network [ 23 ]. HClO is a strong oxidant that can remove anaerobic bacteria and microorganisms from the root canal.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, when irrigating the root canal, we should try our best to use anti-biofilm root canal irrigation solution for efficiently removing the internal and external bacterial biofilm. When NaClO solution is used to irrigate the affected root canal, a reduction reaction can also take place to form an HClO oxidant network [23]. HClO is a strong oxidant that can remove anaerobic bacteria and microorganisms from the root canal.…”

Section: Discussionmentioning

confidence: 99%

Comparison of antibacterial effect of plantaricin 149 suspension and traditional root canal irrigation solutions in root canal infections in vitro

2022

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Dental pulp and periapical diseases are common conditions in stomatology, caused by various pathogenic microorganisms. Antimicrobial peptides, as new antibiotics, offer promising applications in the irrigation and disinfection medicaments for root canals.One patient with chronic periapical periodontitis was selected to extract the clinical pathogenic bacteria. Porphyromonas gingivalis (Pg) (ATCC 33,277), Streptococcus mutans (Sm) (ATCC 25,175), and Prevotella intermedius (Pi) (ATCC 25,611) were used as test strains. The effects of plantaricin (Pln) 149 on the biofilm formation and growth in infected root canals were evaluated by RT-PCR, laser confocal scanning microscopy, and bacterial diversity analysis. In addition, the cytotoxicity of Pln 149 (100 µg/mL) to human dental pulp stem cells (hDPSCs) was assessed using an MTT assay. Pln 149 exhibited significant inhibitory effects on Pg Sm and Pi (P < 0.05), with significant differences in the biofilm images of the laser confocal scanning microscope (P < 0.05). There were no significant differences in hDPSCs viability or proliferation between the Pln 149 and control groups. Considering the excellent antimicrobial effects and low cytotoxicity, we suggest that Pln 149 might be a promising option for root canal irrigation solutions.

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Toxic potential of sodium hypochlorite in the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) Bg ⁹

et al. 2021

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Effect of root canal irrigant (sodium hypochlorite & saline) delivery at different temperatures and durations on pre-load and cyclic-loading surface-strain of anatomically different premolars

Cited by 4 publications

References 52 publications

Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Comparison of antibacterial effect of plantaricin 149 suspension and traditional root canal irrigation solutions in root canal infections in vitro

Toxic potential of sodium hypochlorite in the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) Bg ⁹

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Effect of root canal irrigant (sodium hypochlorite & saline) delivery at different temperatures and durations on pre-load and cyclic-loading surface-strain of anatomically different premolars

Cited by 4 publications

References 52 publications

Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Effect of sodium hypochlorite temperature and concentration on the fracture resistance of root dentin

Comparison of antibacterial effect of plantaricin 149 suspension and traditional root canal irrigation solutions in root canal infections in vitro

Toxic potential of sodium hypochlorite in the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) Bg 9

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Toxic potential of sodium hypochlorite in the third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) Bg ⁹