Journal of South Asian Association of Pediatric Dentistry

Register      Login

VOLUME 4 , ISSUE 2 ( July-September, 2021 ) > List of Articles

ORIGINAL RESEARCH

Effect of Endodontic Irrigating Agents on Microhardness of Radicular Dentin in Primary Teeth: An In Vitro Study

Tanya Agarwal, Nidhi Agarwal

Keywords : Citric acid, Ethylene diamine tetraacetic acid, Irrigation, Microhardness, Sodium Hypochlorite, Vickers test

Citation Information : Agarwal T, Agarwal N. Effect of Endodontic Irrigating Agents on Microhardness of Radicular Dentin in Primary Teeth: An In Vitro Study. J South Asian Assoc Pediatr Dent 2021; 4 (2):86-89.

DOI: 10.5005/jp-journals-10077-3084

License: CC BY-NC 4.0

Published Online: 26-08-2021

Copyright Statement:  Copyright © 2021; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Introduction: Biochemical debridement with an irrigating solution is indispensable to remove microorganisms, debris flushing, and smear layer from a passage of the root canal, thus involving the use of many irrigants. Along with the desirable effects, these agents may have some detrimental effects on dental hard tissues. Aim and objective: To evaluate the effect of different irrigating solutions on the microhardness of radicular dentin of primary teeth. Materials and methods: Thirty buccolingual sections of roots of primary teeth (decoronated using a diamond disk mounted in acrylic) were indiscriminately distributed among three groups of 10 specimens, respectively, in accordance with the irrigants used, i.e., group I [1% sodium hypochlorite with 10% ethylene diamine tetraacetic acid (EDTA)], group II [6% citric acid (CA)], and group III (normal saline). Dentin microhardness was measured before and after irrigation at apical, middle, cervical levels of the roots with a Vickers indenter machine. Data so collected were analyzed using SPSS software version 24. Results: There was a statistically significant difference in the microhardness values of radicular dentin before and after irrigation with the different agents. More reduction was seen with the CA (24.62 ± 6.43) group when compared with 1% sodium hypochlorite with 10% EDTA group (33.09 ± 6.93) (p = 0.001). Conclusion: Citric acid, although an acid belonging to the organic category, acts as a chelating agent like that of EDTA, thus bringing about a significant reduction in microhardness of radicular dentin in primary teeth.


PDF Share
  1. Grossman LI, Oliet S, Rio CED. Endodontic practice. 11th ed., India: Varghese Publishing House; 1991. pp. 187–189.
  2. Kandil HE, Labib AH, Alhadainy HA. Effect of different irrigating solutions on microhardness and smear layer removal of root canal dentin. Tanta Dent J 2014;11(1):1–11. DOI: 10.1016/j.tdj.2014.03.001.
  3. Botton G, Pires CW, Cadoná FC, et al. Toxicity of irrigating solutions and pharmacological associations used in pulpectomy of primary teeth. Int Endod J 2016;49(8):746–754. DOI: 10.1111/iej.12509.
  4. Demirel A, Yüksel BN, Gümüş MZH, et al. The effect of different irrigation protocols on smear layer removal in root canals of primary teeth: a SEM study. Acta Odontol Scand 2019;77(5):380–385. DOI: 10.1080/00016357.2019.1577491.
  5. Yüksel BN, Demirel A, Ziya M, et al. The effects of various irrigation protocols on root canal wall adaptation and apical microleakage in primary teeth. Acta Odontolo Scand 2020;78(5):321–326. DOI: 10.1080/00016357.2019.1709890.
  6. Buldur B, Kapdan A. Comparison of the EndoVac system and conventional needle irrigation on removal of the smear layer in primary molar root canals. Niger J Clin Pract 2017;20(9):1168–1174. DOI: 10.4103/1119-3077.181351.
  7. Angker L, Swain MV, Kilpatrick N. Micromechanical characterization of the properties of primary tooth dentine. J Dent 2013;31(4):261–267. DOI: 10.1016/S0300-5712(03)00045-9.
  8. Hariharan VS, Nandlal B, Srilatha KT. Efficacy of various root canal irrigants on removal of smear layer in the primary root canals after hand instrumentation: a scanning electron microscopy study. J Indian Soc Pedod Prev Dent 2010;28(4):271–277. DOI: 10.4103/0970-4388.76157.
  9. Kaur R, Singh R, Sethi K, et al. Irrigating solutions in pediatric dentistry: literature review and update. J Adv Med Dent Sci Res 2014;2: 104–115.
  10. Saleh AA, Ettman WM. Effect of endodontic solutions on micro hardness of root canal dentine. J Dent 1999;27(1):43–46. DOI: 10.1016/s0300-5712(98)00018-9.
  11. Salama FS, Abdelmegid FY. Six percent citric acid better than hydrogen peroxide in removing smear layer: an in vitro pilot study. Pediatr Dent 1994;16(6):424–426.
  12. Götze GR, Cunha CBCS, Primo LSSG, et al. Effect of the sodium hypochlorite and citric acid association on smear layer removal of primary molars. Braz Oral Res 2005;19(4):261–266. DOI: 10.1590/S1806-83242005000400005.
  13. Chibber N, Kumar A, Deepmala. In vitro study to assess the impact of chelating agents on microhardness of primary radicular dentin. Indian J Public Health Res Develop 2020;11(7):522–524.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.