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Dina Ratnasari
Department of Conservative Dentistry, Faculty of Dentistry, Trisakti University, Indonesia
Dentistry

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The Effect of Resin and Bioceramic Sealer on Microleakage After Root Canal Obturation Yonathan Yonathan; Dina Ratnasari
Journal of Indonesian Dental Association Vol. 3 No. 2 (2020): October
Publisher : Indonesian Dental Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jida.v3i2.456

Abstract

Introduction: Microleakage is one of the factors which may cause failure in a root canal treatment by the inadequate obturation. There are two materials that are required to do obturation which are gutta-percha and sealer. Examination of microleakage by bacterial leakage method is more similar to clinical condition. On the other hand, bacteria are smaller than dye solution molecules, so that they will give more sensitive results. Objective: The purpose of this research is to determine the differences between the effect of resin and bioceramic sealer on microleakage. Methods: The subjects were 18 first mandibular premolars which were cut leaving 13 mm of root section and prepared with crown down technique to a size of 30/0.07, then the samples were divided into two groups and were obturated using resin and bioceramic sealer. The microleakage examination was carried out using bacterial leakage method using Enterococcus faecalis. All samples except controls were inoculated with Enterococcus faecalis bacteria on the coronal chamber. Results: Chi-square test showed no significant differences between each group (p> 0.05). The difference that occur is only "survival time" of the result of the resin sealer that leaked faster than bioceramic sealer. Conclusion: There is no difference between resin and bioceramic sealer on microleakage due to bacterial penetration.
The Effect of Immersion in Soda Containing Sucrose and Aspartame on The Compressive Strength of Bulk-fill Composite Resin Kevin Anthony Christiawan; Dina Ratnasari
Journal of Indonesian Dental Association Vol. 5 No. 1 (2022): April
Publisher : Indonesian Dental Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jida.v5i1.767

Abstract

Introduction: Soda is a popular drink and contains sucrose as natural sweetener, and aspartame as artificial sweetener, both of which have acidic properties that affect the restorative material. Bulk-fill composite resin is a type of composite resin that can be polymerized with a thickness of 4-5 mm as well as better physical and mechanical properties for chewing forces. Objective: To determine the effect of immersion in soda containing sucrose and aspartame on the compressive strength of bulk-fill composite resins. Methods: This study used 30 samples of bulk-fill composite resin in the form of a cylinder with a diameter of 4 mm and a height of 6 mm, divided into 3 groups. Group A was immersed in artificial saliva for 24 hours. Group B was immersed in soda containing sucrose for 6 hours and in artificial saliva for 18 hours. Group C was immersed in soda containing aspartame for 6 hours and in artificial saliva for 18 hours. The samples were immersed for 6 days in an incubator at 37°C. The compressive strength was measured and calculated using the Universal Testing Machine (UTM). Results: The result of compressive strength on artificial salive immersion was 318,65 ± 30,23, on soda containing sucrose immersion was 312,59 ± 33,10, on soda containing aspartame immersion was 316,80 ± 23,49. One-Way ANOVA test showed that the compressive strength value of bulk-fill composite resin was not significantly different among groups (p > 0.05). Conclusion: The effect of immersion in soda containing sucrose and aspartame showed no difference on the compressive strength of bulk-fill composite resins. ABSTRAK Pendahuluan: Minuman soda merupakan minuman yang populer dan mengandung pemanis alami yaitu sukrosa dan pemanis buatan yaitu aspartam, keduanya memiliki sifat asam yang berpengaruh terhadap bahan restorasi. Resin komposit bulk-fill merupakan jenis resin komposit yang dapat dipolimerisasi dengan ketebalan 4-5 mm serta memiliki sifat fisik dan mekanik yang lebih baik untuk kekuatan kunyah. Tujuan: Untuk mengetahui pengaruh perendaman minuman soda mengandung sukrosa dan aspartam terhadap kekuatan tekan resin komposit bulk-fill. Metode: Penelitian ini menggunakan sampel resin komposit bulk-fill berbentuk silinder dengan diameter 4 mm dan tinggi 6 mm sebanyak 30 sampel, sampel dibagi menjadi 3 kelompok. Kelompok A yang direndam dalam saliva buatan selama 24 jam, kelompok B yang direndam dalam soda mengandung sukrosa selama 6 jam dan 18 jam dalam saliva buatan, dan kelompok C yang direndam dalam soda mengandung aspartam 6 jam dan 18 jam dalam saliva buatan. Perendaman sampel dilakukan selama 6 hari dalam inkubator 37°C. Kekuatan tekan diuji dan dihitung menggunakan Universal Testing Machine (UTM). Hasil: Hasil kekuatan tekan pada saliva buatan 318,65 ± 30,23, pada soda mengandung sukrosa 312,59 ± 33,10, pada soda mengandung aspartam 316,80 ± 23,49. Uji dengan One-Way ANOVA menunjukkan nilai compressive strength resin komposit bulk-fill tidak berbeda signifikan antar tiap kelompok (p > 0,05). Kesimpulan: Tidak terdapat perbedaan pengaruh perendaman minuman soda mengandung sukrosa dan aspartam terhadap kekuatan tekan resin komposit bulk-fill.
Co-Authors Kevin Anthony Christiawan Yonathan Yonathan