International Journal of Clinical Pediatric Dentistry

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VOLUME 15 , ISSUE 2 ( March-April, 2022 ) > List of Articles


Shear Bond Strength of Glass Ionomer Cement to Er, Cr:YSGG Laser-irradiated Dentin in Primary Teeth: An In Vitro Study

Nagarathna Chikkanarasaiah, P Hrishida

Keywords : GIC, LASER, Shear bond strength

Citation Information : Chikkanarasaiah N, Hrishida P. Shear Bond Strength of Glass Ionomer Cement to Er, Cr:YSGG Laser-irradiated Dentin in Primary Teeth: An In Vitro Study. Int J Clin Pediatr Dent 2022; 15 (2):199-203.

DOI: 10.5005/jp-journals-10005-2369

License: CC BY-NC 4.0

Published Online: 01-04-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Background: The clinical success of restorative materials depends upon a good adhesion with the dentinal surface to resist various dislodging forces acting within the oral cavity. Shear bond strength is the resistance to forces that slides restorative material past tooth structure. The Er, Cr:YSGG pulsed laser irradiation may be used to prepare enamel, dentin, cementum, and bone effectively and cleanly without leaving a smear layer. Aim: To compare the shear bond strength of GIC to dentin treated with conventional cavity conditioning and laser irradiation methods. Methodology: Thirty samples of noncarious human primary molars which get exfoliated either due to physiologic reasons or extracted due to any therapeutic reasons were collected for the study. Occlusal enamel was removed and teeth were then embedded in self-cured acrylic mold. All the prepared specimens were disinfected with Chloramine T solution and stored in distilled water for 24 hours at room temperature and teeth were randomly divided into the following groups; group 1: conventional cavity conditioning and type IX GIC restoration, group 2: Er, Cr:YSGG conditioning and type IX GIC restoration. Specimens were then subjected to thermocycling and shear bond strength was evaluated using the Lloyd testing machine. Statistical analysis: One-way ANOVA test followed by Tukey\'s HSD post hoc analysis was used to compare mean shear bond strength between two study groups. The level of significance [p-value] were set at p < 0.05. Result: Conditioning the dentin surface with Er, Cr:YSGG laser can increase the shear bond strength of glass ionomer restoration than conventional cavity conditioning.

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  1. Somani R, Jaidka S, Singh DJ, et al. Comparative evaluation of shear bond strength of various glass ionomer cements to dentin of primary teeth: an in vitro study. Int J Clin Pediatr Dent 2016;9(3):192-196. DOI: 10.5005/jp-journals-10005-1362
  2. Van Landuyt K, De Munck J, Coutinho E, et al. Bonding to dentin: smear layer and the process of hybridization. In Dental Hard Tissues and Bonding 2005.
  3. Alves FB, Hesse D, Lenzi TL, et al. The bonding of glass ionomer cements to caries-affected primary tooth dentin. Pediatric dentistry 2013;35(4):320–324.
  4. Hoshing UA, Patil S, Medha A, et al. Comparison of shear bond strength of composite resin to enamel surface with laser etching versus acid etching: an in vitro evaluation. J Conserv Dent 2014;17(4):320–324. DOI: 10.4103/0972-0707.136438
  5. Dilber E, Malkoc MA, Ozturk AN, et al. Effect of various laser irradiations on the mineral content of dentin. Eur J Dent 2013;7(1):74–80.
  6. Obeidi A, Liu PR, Ramp LC, et al. Acid-etch interval and shear bond strength of Er,Cr:YSGG laser-prepared enamel and dentin. Lasers Med Sci 2010;25(3):363–369. DOI: 10.1007/s10103-009-0652-9
  7. Jordehi AY, Ghasemi A, Zadeh MM, et al. Evaluation of microtensile bond strength of glass ionomer cements to dentin after conditioning with the Er, Cr: YSGG laser. Photomed Laser Surg 2007;25(5):402–406. DOI: 10.1089/pho.2006.2074
  8. Garbui BU, de Azevedo CS, Zezell DM, et al. Er, Cr: YSGG laser dentine conditioning improves adhesion of a glass ionomer cement. Photomed Laser Surg 2013;31(9):453–460. DOI: 10.1089/pho.2013.3546
  9. Navimipour EJ, Oskoee SS, Oskoee PA, et al. Effect of acid and laser etching on shear bond strength of conventional and resin-modified glass-ionomer cements to composite resin. Lasers Med Sci 2012;27(2):305–311. DOI: 10.1007/s10103-010-0868-8
  10. Ekworapoj P, Sidhu SK, McCabe JF. Effect of surface conditioning on adhesion of glass ionomer cement to Er, Cr: YSGG laser-irradiated human dentin. Photomed Laser Surg 2007;25(2):118–123. DOI: 10.1089/pho.2006.2004
  11. Powis DR, Follerås T, Merson SA, et al. Materials science: improved adhesion of a glass ionomer cement to dentin and enamel. J Dent Res 1982;61(12):1416–1422. DOI: 10.1177/00220345820610120801
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