Investigation of the effects of different chelating solutions on the microhardness and surface roughness of root canal dentin

Introduction: The purpose of this study is to examine the effect of different chelating solutions on microhardness and surface roughness of root canal dentin. Methodology: The crowns of sixty recently extracted maxillary central incisors were separated by diamond burs from the cemento-enamel junction. Roots are divided longitudinally into two pieces with diamond saw. The obtained samples were embedded in autopolymeric-acrylic and the dentin-surfaces of the teeth were grounded. Micro-hardness and surface-roughness measurements were carried out before the chelating processes. First group, the specimens were treated with gel-formed 17% Ethylenediaminetetraacetic acid [EDTA] (JE), second group, specimens were treated with 17% Liquid-formed EDTA (LE), third group, specimens were treated with 20% Citric acid (CA), and the last group specimens were treated with 7% Maleic acid (MA) for 120 seconds. After application of the chelating agents, micro-hardness and surface-roughness measurements of all samples were performed again. The difference between the initial and final measurements was calculated and statistically analyzed. One Way Analysis of Variance ANOVA was used for statistical-analysis and statistically significant difference was observed between the groups (p <0.05). Results: According to the test results, the microhardness of LE was statistically equal to that of JE and caused the least decrease in micro-hardness, SA decreased micro-hardness more than LE and JE, and MA decreased dentin micro-hardness more than all other solutions. And surface-roughness results are: MA increased surface-roughness more than other groups, SA and JE less roughened the dentin surface than MA, and there was no significant difference between the two solutions, LE caused less increase in dentin surface roughness compared to all solutions. Conclusions: Besides the use of EDTA and SA, the clinical use of MA can be considered, and it should also be noted that EDTA differs in terms of surface roughness between liquid and gel forms. How to cite this article: Topbaş C, Adıgüzel Ö, Çölgeçen Ö. Investigation of the effects of different chelating solutions on the microhardness and surface roughness of root canal dentin. Int Dent Res 2019;9(1):22-9. Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Evaluation of the Effect of Maleic Acid and Ethylenediaminetetraacetic Acid on the Microhardness and Surface Roughness of Human Root Canal Dentin

Journal of Endodontics ◽

10.1016/j.joen.2010.04.002 ◽

2010 ◽

Vol 36 (8) ◽

pp. 1385-1388 ◽

Cited By ~ 28

Author(s):

Nidambur Vasudev Ballal ◽

Kundabala Mala ◽

Kadengodlu Seetharama Bhat

Keyword(s):

Surface Roughness ◽

Maleic Acid ◽

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Root Canal Dentin

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The effects of different irrigation agents on root canal dentine micro-hardness and surface roughness

International Dental Research ◽

10.5577/intdentres.2019.vol9.no1.3 ◽

2019 ◽

Vol 9 (1) ◽

pp. 16-21

Author(s):

Faruk Öztekin ◽

Özkan Adıgüzel

Keyword(s):

Surface Roughness ◽

Root Canal ◽

Native Speakers ◽

Three Dimensional ◽

Micro Hardness ◽

Mechanical Preparation ◽

Significant Difference ◽

Group A ◽

Native Speakers Of English ◽

Dentine Surface

Aim: Successful endodontic treatments rely on sufficient mechanical preparation and irrigation of the root canal followed by an adequate three-dimensional filling. This study investigated the changes in root dentine micro-hardness and surface roughness upon treatment with different irrigating agents. Methodology: A total of 60 human maxillary incisors and canine teeth were used in this study. The crowns of all teeth were decoronated and roots were divided longitudinally. The samples were separated into three groups prior to irrigation. A 5% NaOCl irrigation agent was applied to the first group, a QMix agent was used for the second group, and a 2% CHX agent was used for the third group. All irrigations were performed for 15 minutes. Following irrigation, microstructural and surface-roughness measurements were taken again from all samples. Results: Micro-hardness was not significantly different between QMix or 5% NaOCl (p>0.05). A significant difference was observed between the QMix- and 2% CHX-treated groups, and between the 5% NaOCl- and QMix-treated groups (p<0.05). A significant difference in surface roughness was observed between the QMix and 2% CHX, and between the 5% NaOCl and QMix (p<0.05). No difference in surface roughness was observed between 5% NaOCl or 2% CHX. The 5% NaOCl and QMix agents reduced the dentine micro-hardness equal to or more than that of the 2% CHX agent. The QMix agent also increased the dentine surface roughness significantly more than the other agents. The 5% NaOCl and 2% CHX agents increased surface roughness equally. Conclusions: It was seen that all of the irrigation agents used in our study affected dentin microhardness and surface roughness at different rates. How to cite this article: Öztekin F, Adıgüzel Ö. The effects of different irrigation agents on root canal dentine micro-hardness and surface roughness. Int Dent Res 2019;9(1):16-21. Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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The Effect of Chitosan Nanoparticle as A Final Irrigation Solution on The Smear Layer Removal, Micro-hardness and Surface Roughness of Root Canal Dentin

The Open Dentistry Journal ◽

10.2174/1874210602014010019 ◽

2020 ◽

Vol 14 (1) ◽

pp. 19-26

Author(s):

Diatri Nari Ratih ◽

Raras Ajeng Enggardipta ◽

Aqilla Tiara Kartikaningtyas

Keyword(s):

Surface Roughness ◽

Root Canal ◽

Chitosan Nanoparticles ◽

Lower Surface ◽

Smear Layer ◽

Micro Hardness ◽

Canal Irrigation ◽

Layer Removal ◽

Root Canal Irrigation ◽

Root Canal Dentin

Background: Root canal irrigation is one of the most important stages during root canal treatment. One of the requirements of root canal irrigation material is that it can eradicate the smear layer but does not alter the physical properties of the root canal dentin. Objective: To investigate the effect of chitosan nanoparticle as a final irrigation solution on the smear layer removal, micro-hardness and surface roughness of root canal dentin. Methods: Seventy-two premolars used in this study and divided by three evaluations, namely smear layer removal, micro-hardness and surface roughness. Each study used 24 teeth and was assigned randomly into three groups of eight teeth. Group-1, final irrigation with 17% EDTA; group-2, with 0.2% chitosan nanoparticles; group-3, with 2.5% NaOCl. Specimens were evaluated for smear layer removal, micro-hardness and surface roughness using a Scanning Electron Microscope, Vickers hardness tester and surface roughness measuring instrument, respectively. Data obtained from smear layer removal evaluation were statically analyzed using Kruskal-Wallis and Mann-Whitney U and data from micro-hardness and surface roughness were analyzed using one-way ANOVA and Tukey’s test. Results: Final irrigation using 0.2% chitosan nanoparticles produced similar smear layer removal than 17% EDTA (P>0.05), but it was greater than 2.5% NaOCl (P<0.05). Chitosan had higher micro-hardness and lower surface roughness than EDTA (P<0.05), but it was the same as 2.5% NaOCl (P>0.05). Conclusion: Final irrigation using 0.2% chitosan nanoparticles had the same effect on smear layer removal compared to 17% EDTA; however, 0.2% chitosan produced higher micro-hardness and lower surface roughness of root canal dentin than 17% EDTA.

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Effect of Root Dentin Pretreatment on Micro-Push-Out Bond Strength of Fiber Posts to Root Canal Dentin: Cold Atmospheric Argon Plasma (CAAP) and Ethylenediaminetetraacetic Acid (EDTA)

International Journal of Dentistry ◽

10.1155/2021/5571480 ◽

2021 ◽

Vol 2021 ◽

pp. 1-6

Author(s):

Farzaneh Sadeghi Mahounak ◽

Mahdi Abbasi ◽

Ladan Ranjbar Omrani ◽

Naghmeh Meraji ◽

Maryam Rezazadeh Sefideh ◽

...

Keyword(s):

Bond Strength ◽

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Argon Plasma ◽

Fiber Posts ◽

Significant Difference ◽

Mode Of Failure ◽

Atmospheric Argon ◽

Root Canal Dentin ◽

Push Out

Purpose. Debonding from the root canal dentin is the most common failure mode of fiber posts. This study aimed to assess the effects of cold atmospheric argon plasma (CAAP) and ethylenediaminetetraacetic acid (EDTA) on micro-push-out bond strength of fiber posts to root canal dentin. Materials and Methods. Forty maxillary canine teeth were decoronated, underwent endodontic treatment, and were stored in an incubator for 7 days. After post space preparation, the teeth were randomly divided into four groups for different surface treatments: (I) saline, (II) 17% EDTA, (III) CAAP, and (IV) 17% EDTA + CAAP. Fiber posts (Whitepost no. 2, FGM) were cemented into the root canals using Panavia F2.0 resin cement, and 1 mm-thick sections were made at the coronal, middle, and apical thirds of the roots. The samples underwent micro-push-out bond strength test. The mode of failure was also determined under a stereomicroscope. Data were analyzed using three-way ANOVA and Tukey’s post hoc test (α = 0.05). The mode of failure data were analyzed using the chi-square test. Results. The mean micro-push-out bond strength of fiber posts was not significantly different in the four groups ( P > 0.05 ). However, the bond strength values in the coronal third were significantly higher than the corresponding values in the apical third ( P = 0.01 ). There was no significant difference in the modes of failure between the groups ( P > 0.05 ). Conclusion. Application of CAAP alone or in combination with 17% EDTA could not successfully increase the bond strength of fiber posts to root canal dentin.

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Effect of QMix 2 in 1, BioPure MTAD and 17% Ethylenediaminetetraacetic Acid on Microhardness of Root Canal Dentin: An in vitro Study

International Journal of Prosthodontics and Restorative Dentistry ◽

10.5005/jp-journals-10019-1169 ◽

2017 ◽

Vol 7 (1) ◽

pp. 17-20

Author(s):

Gautam Singh ◽

Charul Gupta ◽

Mahesh P Singh ◽

Kunwar S Singh ◽

Abhishek Mishra

Keyword(s):

Vickers Hardness ◽

Normal Saline ◽

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Antibacterial Properties ◽

Control Group ◽

Group I ◽

Significant Difference ◽

Root Canal Dentin

ABSTRACT Aim To compare the effect of QMix, a mixture of tetracycline, citric acid, and detergent (MTAD), and ethylenediaminetetracetic acid (EDTA) on the microhardness of the root canal dentin. Materials and methods A total of 30 single-rooted teeth were decoronated at 15 mm from the root apex. Root canal instrumen- tation using step back technique was done and the specimens were split into two halves using diamond disc. These were embedded in acrylic blocks and sent for testing by Vickers hard- ness test. The other half of the specimens was divided into four groups. Control group: In this, normal saline was used. Group I: MTAD was used. Group II: 17% EDTA was used. Group IV: QMix 2 in 1 (DENTSPLY) was used. The specimens were immersed in test irrigant for 5 minutes in closed glass plates. The tested specimens were sent for Vickers hardness test under 100 gm load for 15 seconds. The post Vickers hardness number readings were recorded and sent for statistical analysis. Results Data were analyzed using one-way analysis of variance and least significant difference post hoc test was applied for pairwise comparison. QMix showed significantly less reduction in microhardness than EDTA and QMix: Normal saline > QMix>EDTA>MTAD. Conclusion QMix as a root canal irrigant is efficient as it caused least reduction of microhardness of dentin. It has antibacterial properties and is also efficient for smear layer removal. How to cite this article Gupta C, Singh G, Singh MP, Agarwal M, Singh KS, Mishra A. Effect of QMix 2 in 1, BioPure MTAD and 17% Ethylenediaminetetraacetic Acid on Microhardness of Root Canal Dentin: An in vitro Study. Int J Prosthodont Restor Dent 2017;7(1):17-20.

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Comparison of Medicaments Used in Regenerative Endodontics in Terms of Dentin Microhardness and Adhesion of Mineral in Terms of Dentin Microhardness and Adhesion of Mineral Trioxide Aggregate Trioxide Aggregat

Journal of Dentistry Indonesia ◽

10.14693/jdi.v27i3.1127 ◽

2020 ◽

Vol 27 (3) ◽

Author(s):

Esma Saricam ◽

◽

Neslihan Bulak ◽

Esra Özyurt ◽

Suat Özcan ◽

...

Keyword(s):

Bond Strength ◽

Clavulanic Acid ◽

Root Canal ◽

Mineral Trioxide Aggregate ◽

Significance Level ◽

Regenerative Endodontics ◽

Significant Difference ◽

Amoxicillin Clavulanic Acid ◽

Root Canal Dentin ◽

Push Out

Eliminating microorganisms in the root canal system is important for the success of regenerative endodontics. Objective: This study evaluated the effects of different antibiotic pastes used for regenerative endodontic procedures on dentin microhardness and the push-out bond strength of mineral trioxide aggregate (MTA) to root canal dentin. Methods: Sixty-four maxillary central incisors were instrumented and randomly divided into the following four groups (n = 16) for medicament treatment: triple antibiotic paste, amoxicillin+clavulanic acid, cefaclor, and control (no dressing). After 21 days, two root segments were obtained by sectioning the roots horizontally for push-out and microhardness evaluations. MTA was placed into the root canal of the sectioned segment for the push-out test. In the microhardness evaluation, three indentations were made at 500 and 1,000 μm from the canal lumen. The arithmetic mean was then calculated for each distance. ANOVA with post hoc Scheffe test and t test were used for the statistical analyses. The significance level was set at p < 0.05. Results: No significant difference was found between the groups in terms of push-out bond strength (p > 0.05). Cefaclor and amoxicillin+clavulanic acid reduced the microhardness values of the dentin at 500 μm (p < 0.05) while cefaclor had the lowest value at 1,000 μm (p < 0.05). Conclusion: Cefaclor reduced the microhardness value more than the other medicaments did at a depth of 1,000 μm. The pastes provided similar adhesion of MTA.

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COMPARATIVE EVALUATION OF THE DISSOLVING EFFECT OF RC SOLVE, EUCALYPTUS OIL AND G-SOL ON AH PLUS ROOT CANAL SEALER - AN INVITRO STUDY

International Journal of Advanced Research ◽

10.21474/ijar01/12379 ◽

2021 ◽

Vol 9 (01) ◽

pp. 984-990

Author(s):

Malavika Mohan ◽

◽

Meenakshi R. Verma ◽

Ashish K. Jain ◽

Rahul D. Rao ◽

...

Keyword(s):

Root Canal ◽

P Value ◽

Root Canal Sealer ◽

Initial Weight ◽

Eucalyptus Oil ◽

Significant Difference ◽

Final Weight ◽

Ah Plus ◽

The Difference ◽

Endodontic Retreatment

Context: Use of root canal solvents has increased the success rate of endodontic retreatment and it has made the procedure faster and simpler. Aims: During retreatment, a solvent facilitates the removal of obturation material and root canal sealer by softening it, so as to obtain a root canal free of debris and microorganisms. Hence an invitro study was done to evaluate and compare the dissolving effect of RC Solve, Eucalyptus oil and G-sol on AH Plus Root Canal Sealer. Methods and Material: Thirty standardized stainless-steel rings filled with AH Plus sealer manipulated according to manufacturers instructions were prepared and placed ten minutes for complete setting in an incubator at 37Ã‚Â°C for 48 hours and weighed to obtain the initial weight. The samples were divided into three equal groups of 10 each and immersed in RC Solve, Eucalyptus oil and G-sol for 10 minutes and dried in an incubator at 37Ã‚Â°C for 24 hours and weighed again for final weight. The amount of sealer lost was determined by calculating the difference between initial and final weight. Results: The dissolving effect of AH Plus sealer on all three solvents showed a marked amount of weight loss (p<0.05). The best dissolving capability on AH Plus sealer was exhibited by Eucalyptus oil followed by RC Solve and least for G-Sol. The result of the ANOVA with a p-value of 0.004 indicated a significant difference of weight change of AH Plus sealer after immersion into RC Solve, Eucalyptus Oil and G-Sol. Conclusions: Based on the findings of this study, it was concluded that Eucalyptus oil has a slightly better solvent effect.

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Effect of Different Irrigation Solutions on the Diffusion of MTA Cement into the Root Canal Dentin

Materials ◽

10.3390/ma13235472 ◽

2020 ◽

Vol 13 (23) ◽

pp. 5472

Author(s):

José Pedro Martinho ◽

Sara França ◽

Siri Paulo ◽

Anabela Baptista Paula ◽

Ana Sofia Coelho ◽

...

Keyword(s):

Root Canal ◽

Ethylenediaminetetraacetic Acid ◽

Treatment Success ◽

Confocal Laser ◽

Control Group ◽

Middle Section ◽

Group 2 ◽

Root Canal Dentin ◽

Group 1

(1) Aim: This study aims to analyze the in vitro infiltration of a silicate root canal sealer into dentinal tubules after using different endodontic irrigating solutions. (2) Methods: Twenty-nine teeth with single roots were separated into three groups according to the final irrigation protocol: G1 n = 10) = 17% EDTA (ethylenediaminetetraacetic acid) + 3.0% sodium hypochlorite (NaOCl), G2 (n = 10) = 17% EDTA + 2.0% chlorhexidine and G3 (Control group, n = 9) = 17% EDTA + saline solution. Root canals were filled using cold lateral compaction technique with MTA Fillapex sealer and gutta-percha. The sealer was labeled with rhodamine B. The teeth were segmented at the middle and third apical sections, which were visualized using 10× confocal laser microscopy to determine the sealer penetration percentage. (3) Results: In the apical section, no statistically significant differences were found between the groups regarding sealer penetration. In the middle section, Group 1 obtained the highest percentage, and Group 2 the lowest (p = 0.004). Group 1 also presented statistically significant differences in the Control Group (p = 0.031) and had close sealer penetration values. Meanwhile, the Control Group (p = 0.023) and Group 2 (p = 0.029) revealed a significant decrease of sealer penetration between the apical and middle sections. (4) Conclusion: The obtained results support that final irrigation with NaOCl promoted similar sealer penetration in the apical and middle sections. On the other hand, a significant decrease in the sealer penetration of the middle section was observed for the chlorhexidine and saline groups. Compared to other irrigant solutions, NaOCl promotes more uniform sealer penetration, which can correlate with better sealing and, consequently, higher endodontic treatment success.

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