Effect of endodontic irrigating solutions on the microhardness and roughness of root canal dentin: An in vitro study

Patil, C. S.; Uppin, Veerendra M

doi:10.4103/0970-9290.79969

Cited by 34 publications

(40 citation statements)

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“…However, these results are in contrast to those of other studies 1,12,20 , most likely due to the standardization of the initial polishing used here; this procedure was not reported in the other studies. Initial roughness standardization is recommended in studies of chemical conditioning because it offers a controlled reference point for the correct and unambiguous assessment of the morphological effects induced by subsequent chemical treatments 9 .…”

Section: Discussioncontrasting

confidence: 99%

Etidronate from Medicine to Endodontics: effects of different irrigation regimes on root dentin roughness

et al. 2013

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An increase in dentin roughness, associated with surface composition, contributes to bacterial adherence in recontaminations. Surface roughness is also important for micromechanical interlocking of dental materials to dentin, and understanding the characteristics of the surface is essential to obtain the adhesion of root canal sealers that have different physico-chemical characteristics.ObjectivesTo evaluate the effects of sodium hypochlorite (NaOCl), ethylenediaminetetraacetic (EDTA), etidronic (HEBP), and citric acid (CA) associated with different irrigation regimens on root dentin roughness.Material and MethodsForty-five root halves of anterior teeth were used. The root parts were sectioned in thirds, embedded in acrylic resin and polished to a standard surface roughness. Initially, the samples of each third were randomly assigned into 3 groups and treated as follows: G1 - saline solution (control); G2 - 5% NaOCl+18% HEBP mixed in equal parts; and G3 - 2.5% NaOCl. After initial measuments, the G3 samples were distributed into subgroups G4, G5 and G6, which were subjected to 17% EDTA, 10% CA and 9% HEBP, respectively. Following the new measuments, these groups received a final flush with 2.5% NaOCl, producing G7, G8 and G9. The dentin surface roughness (Ra) was determined before and after treatments using a profilometer. The Wilcoxon test (α<0.05) was used to compare the values before and after treatments, and the Friedman test (α<0.05) to detect any differences among root thirds. Results(i) NaOCl did not affect the surface roughness; (ii) there was a significant increase in roughness after the use of chelating agents (P<0.01); and (iii) only the G3 group showed a difference in surface roughness between apical third and other thirds of the teeth (P<0.0043).ConclusionOnly the irrigation regimens that used chelating agents altered the roughness of root dentin.

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Section: Discussioncontrasting

confidence: 99%

Etidronate from Medicine to Endodontics: effects of different irrigation regimes on root dentin roughness

et al. 2013

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“…The results showed that NaOCl is able to significantly decrease the dentin microhardness, even when used alone (G3), which agrees with previous research [8–10]. When used in the final rinsing for only 3 minutes, this solution does not significantly change the microhardness compared with the values in the groups that did not have a final flush with NaOCl, confirming that its effect is time dependent [8].…”

Section: Discussionsupporting

confidence: 89%

“…These changes can also affect the sealing ability and adhesion of root canal sealers [6, 7]. Studies indicated that sodium hypochlorite (NaOCl), the most commonly used irrigating agent, decreases the microhardness of dentin at all concentrations [8–10]. With regard to chelating agents, the decalcification effects depend heavily on the irrigant used, the application time, and the solution pH and concentration [11, 12].…”

Section: Introductionmentioning

confidence: 99%

A New Weak Chelator in Endodontics: Effects of Different Irrigation Regimens with Etidronate on Root Dentin Microhardness

Tartari

Rodrigues

Almeida

et al. 2013

International Journal of Dentistry

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This study investigated the effect of sodium hypochlorite (NaOCl), ethylenediaminetetraacetic (EDTA), etidronic (HEBP), and citric acid (CA) associated in different irrigation regimens on root dentin microhardness. Forty-five root halves of single-rooted teeth were sectioned into thirds that were embedded in acrylic resin, polished, randomly assigned into 3 groups, and treated as follows: G1: saline solution; G2: 5% NaOCl + 18% HEBP, mixed in equal parts; and G3: 2.5% NaOCl. After measurements, the G3 samples were distributed into subgroups G4, G5, and G6, which were submitted to 17% EDTA, 10% CA and 9% HEBP, respectively. Following the new measurements, these groups received a final flush with 2.5% NaOCl, producing G7, G8, and G9. Microhardness was measured with Knoop indenter under a 25 g load for 15 seconds, before and after treatments. The data were statistically analyzed using paired Student's t-test (α<0.05) to compare values before and after treatments and analysis of variance (ANOVA) (α<0.05) to detect any differences among thirds. Except G1, all tested irrigation regimens significantly decreased the microhardness. There were no differences between root thirds before treatments, and all root thirds exhibited equal responses to same treatment. Except saline, all tested irrigation regimens reduced the root dentin microhardness.

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“…Although CHX was used as a final irrigant in G6 (NaOCl + EDTA + CHX), G7 (NaOCl + PAA + CHX) and G8 (NaOCl + HEDP + CHX), the comparison with the counterpart other groups without the use of CHX solution (G3, G4 and G5) allows the conclusion that this irrigant does not alter the surface roughness as has been shown previously (Ari et al . , Patil & Uppin ).…”

Section: Discussionmentioning

confidence: 99%

Effect of the combination of several irrigants on dentine surface properties, adsorption of chlorhexidine and adhesion of microorganisms to dentine

et al. 2018

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Effect of endodontic irrigating solutions on the microhardness and roughness of root canal dentin: An in vitro study

Abstract: Within the limitation of this study, it is concluded that 0.2% chlorhexidine gluconate seems to be an appropriate irrigation solution, because of its harmless effect on the microhardness and surface roughness of root canal dentin.

Cited by 34 publications

References 0 publications

Etidronate from Medicine to Endodontics: effects of different irrigation regimes on root dentin roughness

Etidronate from Medicine to Endodontics: effects of different irrigation regimes on root dentin roughness

A New Weak Chelator in Endodontics: Effects of Different Irrigation Regimens with Etidronate on Root Dentin Microhardness

Effect of the combination of several irrigants on dentine surface properties, adsorption of chlorhexidine and adhesion of microorganisms to dentine

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