MICROLEAKAGE OF COMPOSITE RESTORATIONS UNDER DIFFERENT PROTOCOLS OF PREPARATION, ADHESIVE PREPARATION AND CARIOUS CAVITIES DEPTH
DOI:
https://doi.org/10.21272/eumj.2026;14(1);145-152Keywords:
dental, caries. acid etching, adhesive, cavity preparation, air abrasionAbstract
Aim: To assess the microflow of composite restorations in teeth prepared according to various protocols of preparation (traditional with rotary instruments and air abrasion), adhesive preparation (tissue etching and without etching) and the depth of carious lesions.
Material and methods: The study was carried ouconducted on 180 pre-prepared extracted teeth, divided into 4 groups of 45 samples each: GI, GII, GIIII, GIV. On the occlusal surface of the teeth, cavities of different depths were formed. In groups GI, GII according to the technique of traditional preparation with the use of rotary tools, in GIII, GIV – according to the technique of air abrasion. In GI and GIII groups, tissue etching was not performed, in the GII and GIV groups, 37 % phosphoric acid gel was used for etching. A one-component light-curing adhesive Charisma GLUMA® Bond 5 was put into the prepared cavities GI, GII, GIII, GІV, which then were filled with a light-hardening hybrid composite Charisma “SMART”. All samples were subjected to thermal cycling, varnished, immersed in a 1% aqueous solution of methylene blue for 24 hours, separated along the axis, and studied the penetration of the dye through a microscope.
Results: Data comparisons within groups with different cavity preparation protocols showed a difference in the mean values of the depth of dye penetration in each group, but it is not always statistically significant. Differences were recorded when comparing groups according to adhesive preparation protocols. The use of air abrasion in GIII reduced the restorations microleakage rates compared to GI (p ˂ 0.05). In GIV there was a similar situation in comparison with GІI, but not significant (p ˃ 0.05).
Conclusions: The state of microleakage of restorations is influenced by both the cavities depth and the protocols of preparation and adhesive preparation, with the latter having a stronger effect. Mutually, these factors do not affect microleakage. Lower microleakage rates are recorded during preparation with the air abrasion technique.
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References
Siqueira FSF, Wendlinger M, Araújo LCR, et al. Bonding performance of universal adhesives to eroded dentine: a 6-year evaluation. J Dent. 2023;136:104633. https://doi.org/10.1016/j.jdent.2023.104633.
Figundio N, Lopes P, Tedesco TK et al. Deep Carious Lesions Management with Stepwise, Selective, or Non-Selective Removal in Permanent Dentition: A Systematic Review of Randomized Clinical Trials. Healthcare. 2023;11(16):2338. https://doi.org/10.3390/healthcare11162338.
Ferracane JL, Lawson NC. Probing the hierarchy of evidence to identify the best strategy for placing class II dental composite restorations using current materials. J Esthet Restor Dent. 2021;33(1):39–50. https://doi.org/10.1111/jerd.12686.
Noenko I, Pavlenko O, Mochalov I. Comparative study of polymerization depth of three photocomposite dental filling materials for bulk fill restoration. Eastern Ukrainian Medical Journal. 2023;11(2):205–213. https://doi.org/10.21272/eumj.2023;11(2):205-213.
Kui A, Buduru S, Labuneț A et al. Air Particle Abrasion in Dentistry: An Overview of Effects on Dentin Adhesion and Bond Strength. Dent J (Basel). 2024;13(1):16. https://doi.org/10.3390/dj13010016.
Ayla Y, Pişkin B, Şen BH. In Vitro Evaluation of Microleakage Properties of Etched/Non-Etched Air- Abraded and Conventionally Prepared Cavities: A Scanning Electron Microscopy Study. 2021;1(1):52–67. https://doi.org/10.54995/ASC.1.1.5.
Saikaew P, Sattabanasuk V, Harnirattisai C et al. Role of the smear layer in adhesive dentistry and the clinical applications to improve bonding performance. Jpn Dent Sci Rev. 2022;58:59–66. https://doi.org/10.1016/j.jdsr.2021.12.001.
Desai H, Stewart CA, Finer Y. Minimally Invasive Therapies for the Management of Dental Caries—A Literature Review. Dentistry Journal. 2021;9(12):147. https://doi.org/10.3390/dj9120147.
Banerjee A, Frencken JE, Schwendicke F, Innes NPT. Contemporary operative caries management: Consensus recommendations on minimally invasive caries removal. Br. Dent. J. 2017;223:215–222. https://doi.org/10.1038/sj.bdj.2017.672.
Majeed MM, Al-Taee LA. Microinvasive treatment modalities in operative Dentistry. University of Baghdad College of Dentistry. 2023. https://codental.uobaghdad.edu.iq/wp-content/uploads/sites/14/2023/12/Maha-Maaroof.pdf. [Accessed 14 March 2025].
Graeber JJ. Microinvasive dentistry clinical strategies and tools. London: Jaypee brothers medical publisher; 2021. https://surl.li/nfahwj [Accessed 08 April 2025].
Rifane TO, Hirata R, Araújo-Neto VG et al. Effect of phosphoric acid etching and blasting with aluminum oxide on the enamel topography and adhesion of resin composite to intact or abraded enamel. Dent Mater. 2024;40(11):e102–e111. https://doi.org/10.1016/j.dental.2024.08.003.
Cheng L, Zhang L, Yue L et al. Expert consensus on dental caries management. International journal of oral science. 2022;14(1):35. https://doi.org/10.1038/s41368-022-00167-3.
Umer F, Naz F, Khan FR. An in vitro evaluation of microleakage in class V preparations restored with Hybrid versus Silorane composites. J Conserv Dent. 2011;14:103–107. https://doi.org/10.4103/0972-0707.82600.
Radhika M, Sajjan GS, Kumaraswamy BN, Mittal N. Effect of different placement techniques on marginal microleakage of deep class-II cavities restored with two composite resin formulations. J Conserv Dent. 2010;13(1):9–15. https://doi.org/10.4103/0972-0707.62633.
Alharbi EA, Elmarakby AM, Alshammari MH, Alharbi TS. Evaluation of micro leakage of two direct esthetic restorations with different preparation techniques. The Saudi Dental Journal, 2019;31:6–7. https://doi.org/10.1016/j.sdentj.2019.01.015.
Nihalani H, Borkar AC, Shetty SS et al. Comparative evaluation of different surface pretreatment methods on the ].depth of penetration of adhesive resin in sandwich technique: A confocal laser scanning microscopy study. Journal of Conservative Dentistry and Endodontics. 2024;27(6):644–648. https://doi.org/10.4103/jcde.jcde_329_23.
Lima VP, Soares K, Caldeira VS et al. Airborne-Particle Abrasion and Dentin Bonding: Systematic Review and Meta-Analysis. Oper. Dent. 2021;46:E21–E33. https://doi.org/10.2341/19-216-L.
Singh A, Patil V, Juyal M et al. Comparative Evaluation of Occlusal Pits and Fissures Morphology Modification Techniques before Application of Sealants: An In Vitro Study. Indian Journal of Dental Research. 2020;31(2):247–251. https://doi.org/10.4103/ijdr.ijdr_956_19.
Tjäderhane L, Carrilho MR, Breschi L et al. Dentin basic structure and composition—an overview. Endodontic Topics. 2009;20(1):3–29. https://doi.org/10.1111/j.1601-1546.2012.00269.x.
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