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All Journal Dental Journal (Majalah Kedokteran Gigi)
Rosalina Tjandrawinata
Department of Dental Material, Faculty of Dentistry, Universitas Trisakti, Jakarta
Dentistry

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Reinforcing three-dimensional self-reinforcing self-etch adhesive and surface conditioning in immediate dentin sealing of composite resin–dentin Poppy Andriani; Ade Prijanti Dwisaptarini; Eko Fibryanto; Rosalina Tjandrawinata; Siriwan Suebnukarn
Dental Journal (Majalah Kedokteran Gigi) Vol. 59 No. 2 (2026): June
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v59.i2.p141-147

Abstract

Background: Exposed dentin must be sealed with a dentin bonding agent immediately after tooth preparation, described as immediate dentin sealing (IDS). The purpose of IDS is to prevent dentin contamination during temporary restorations, reduce dentin hypersensitivity, and improve bond strength. Self-etch (SE) adhesive can be easily removed during surface treatment before cementation in the IDS technique. Reinforced SE adhesive with an additional layer of flowable composite significantly increases bond strength. Purpose: This study aimed to determine the effects of reinforcing one-bottle SE adhesive with a three-dimensional self-reinforcing monomer and surface conditioning with air abrasion and pumice on the bonding of composite resin to dentin in the IDS technique. Methods: Thirty-six human premolars were selected and randomly divided into three groups. Each group was divided into two sub-groups (n = 6) according to the adhesive system and surface conditioning. All samples were restored with 3 × 3 × 3 mm composite resin before being tested for shear bond strength. The data were analyzed with two-way ANOVA and Sidak’s multiple comparison test (p < 0.05). Results: There were significant differences between groups. Total-etch with pumice showed a higher mean value of shear bond strength than SE with air abrasion. Conclusion: The use of air abrasion in the IDS technique with SE adhesive affects the shear bond strength of dentin. Surface conditioning with air abrasion or pumice with SE adhesive showed the lowest mean values compared with SE adhesive with an additional layer of flowable composite resin.
The effect of hydroxyapatite and Salacca zalacca skin extract combination on antioxidant activity, pH, and cytotoxicity Elline; Anastasia Elsa Prahasti; Winny Moniaga; Rosalina Tjandrawinata; Syuwari Azhar Azman
Dental Journal (Majalah Kedokteran Gigi) Vol. 59 No. 3 (2026): September
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v59.i3.p225-231

Abstract

Background: Conservative treatment to maintain tooth vitality can be done with pulp capping. The gold standard pulp capping material is calcium hydroxide (Ca(OH)2), which can result in tunnel defects. Hydroxyapatite (HAP) is a biocompatible material synthesized from eggshells that can produce a continuous dentinal bridge without a tunnel defect. Flavonoids are compounds with antioxidant properties found in many natural materials, such as Salacca zalacca skin. Combining HAP with S. zalacca skin extract (SAL) is expected to support reparative dentin formation without causing excessive inflammation. Purpose: This study aims to analyze the effect of different ratios of nanohydroxyapatite (nHA) and SAL on antioxidant activity, pH, and cytotoxicity. Methods: In an experimental study using a posttest control group design, 4% nHA was combined with SAL at varying ratios (25:75, 50:50, and 75:25). These combinations were tested for antioxidant assay, pH, and cytotoxicity. Antioxidant assay was measured using the DPPH method, while cytotoxicity was assessed in human dental pulp cells (hDPSC) for 24 hours. Results: The highest antioxidant activity was found in the 25 nHA: 75 SAL group, with a significant antioxidant difference (p < 0.05) compared to other groups. The pH value showed that all test groups had significant differences with Ca(OH)2 (p < 0.05). All test groups showed nontoxic effects on hDPSC. The 25 nHA: 75 SAL group had the highest viability and a significant difference from Ca(OH)2. Conclusion: The combination of nHA and SAL affects antioxidant activity, pH, and cytotoxicity of hDPSC in different ratios.
Co-Authors Ade Prijanti Dwisaptarini Anastasia Elsa Prahasti Eko Fibryanto Elline Poppy Andriani Siriwan Suebnukarn Syuwari Azhar Azman Winny Moniaga