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Publisher: Peytchinski Publishing Ltd.
ISSN: 1312-773X (Online)
Issue: 2026, vol. 32, issue3
Subject Area: Dental Medicine
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DOI: 10.5272/jimab.2026323.7031
Published online: 12 August 2026
Original article
J of IMAB. 2026 Jul-Sep;32(3):7031-7038
MORPHOLOGICAL ANALYSIS OF THE DENTIN-ADHESIVE INTERFACE IN PRIMARY TEETH USING SEM
Viktoriya Gateva
, Natalia Gateva-Grancharova,
Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria.
ABSTRACT:
Purpose: This study aimed to perform a morphological analysis of the adhesive interface between three composite restorative systems and the dentin of primary teeth.
Materials and Methods: The study included 30 extracted primary teeth, divided into three groups according to the restorative material used. The materials investigated were: the giomer Beautifil II with the adhesive system Clearfil SE Protect, the compomer Dyract with the adhesive system Evetric, the nanofilled composite Estelite Sigma Quick with the adhesive system Bond Force II. After dentin surface preparation and material application, the teeth were stored for 24 hours at 37°C, subjected to thermocycling, and prepared for morphological analysis.
Results: All materials showed the presence of adhesive and hybrid layers with varying thickness and structure. The thickest adhesive layer was observed in the specimens restored with Beautifil II in combination with Clearfil SE Protect. The most pronounced hybrid layer was formed in the Dyract XP compomer combined with Evetric adhesive. A thin but continuous hybrid layer was found in Estelite Sigma Quick and Bond Force II.
Keywords: primary teeth, bioactive restorative materials, adhesive layer, hybrid layer, scanning electron microscopy,
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Please cite this article as: Gateva V, Gateva-Grancharova N, Morphological Analysis of the Dentin-Adhesive Interface in Primary Teeth Using SEM. J of IMAB. 2026 Jul-Sep;32(3):7031-7038. [Crossref - 10.5272/jimab.2026323.7031]
Correspondence to: Viktoriya Velizarova Gateva, Department of Pediatric dentistry, Faculty of Dental medicine, Medical University Sofia; 1, Georgi Sofiyski Str., Sofia, Bulgaria. E-mail: v.gateva@fdm.mu-sofia.bg
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Received: 06 October 2025
Published online: 12 August 2026