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All Journal MDJ (Makassar Dental Journal) Indonesian Journal of Prosthodontics
Aksani Taqwim
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Dentistry

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The influence of adding nanosilica diatom extract on the compressive and tensile strength of GIC luting material: Pengaruh penambahan nanosilika ekstrak diatom terhadap compressive dan tensile strength bahan luting GIC Anisah Nabilah Ferry; Aksani Taqwim; Mohammad Dharma Utama; Irfan Dammar
Makassar Dental Journal Vol. 14 No. 1 (2025): Volume 14 Issue 1 April 2025
Publisher : Makassar Dental Journal PDGI Makassar

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Abstract

Perawatan menggunakan gigi tiruan dapat berupa gigi tiruan cekat atau gigi tiruan lepasan. Silika secara alami terkandung dalam diatom, sponge, dan pasir laut. Silika memiliki sifat kekerasan yang tinggi. Penelitian ditujukan untuk mengetahui pengaruh penambahan nanosilika ekstrak diatom Thalassiosira Sp terhadap compressive strength dan tensile strength bahan luting glass ionomer cement (GIC). Penelitian eksperimen laboratorium ini dirancang secara the post-test only control group, melibatkan lima kelompok pelakuan yakin RMGIC, GIC tanpa nanosilika, penambahan nanosilika perbandingan 1%, 3%, 5% (rasio nanosilika dan GIC). Nilai compressive dan tensile strength pascapenambahan nanosilika diatom diukur dengan menggunakan Micro Vickers Hardness Tester. Nilai compressive strength paling rendah terdapat pada sampel GIC+nanosilika 1%, sedangkan nilai paling optimal pada sampel GIC+nanosilika 3%. Nilai tensile strength paling rendah terdapat pada sampel GIC+nanosilika 1%, sedangkan paling optimal pada sampel GIC+nanosilika 3%. Disimpulkan bahwa ada pengaruh penambahan nanosilika terhadap compressive strength dan tensile strength bahan luting GIC dengan penambahan nanosilika 3%.
Heat-Cured Acrylic Resin Plates on Surface Roughness in A 6.25% Siwak (Salvadora Persica) Effervescent Tablet Solution Mohammad Dharma Utama; Chusnul Chotimah; Rhezaldi Rusdi; Aksani Taqwim; Maqhfirah Amiruddin
Indonesian Journal of Prosthodontic Vol 7 No 1 (2026): June 2026
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v7i1.325

Abstract

Background: Heat-cured acrylic resin is widely used as a denture base material due to its favorable aesthetic and biocompatible properties; however, denture hygiene must be maintained using cleaning agents that do not adversely affect surface characteristics. Siwak (Salvadora persica) contains antibacterial and antifungal compounds and has demonstrated inhibitory effects against Candida albicans at a concentration of 6.25%, indicating its potential as a natural denture cleanser. Objective: This study aimed to evaluate the effect of immersing heat-cured acrylic resin plates in a 6.25% siwak effervescent tablet solution on surface roughness. Methods: A true experimental study was conducted using 27 heat-cured acrylic resin plates (65 × 10 × 3.3 mm), divided into three groups: alkaline peroxide solution, 6.25% siwak effervescent tablet solution, and effervescent tablet solution without siwak. Immersion was performed for 15 minutes daily over an 8-day period at 37°C. Surface roughness was measured using a Surface Roughness Tester, and data were analyzed using Welch ANOVA. Results: All groups exhibited an increase in surface roughness after immersion. However, statistical analysis showed no significant difference among the three groups (p > 0.05). Conclusion: Immersion in a 6.25% siwak effervescent tablet solution did not significantly affect the surface roughness of heat-cured acrylic resin and can be considered safe for use as a denture cleaning agent.
Co-Authors Anisah Nabilah Ferry Chusnul Chotimah Irfan Dammar Maqhfirah Amiruddin Mohammad Dharma Utama Rhezaldi Rusdi