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All Journal Journal Of Vocational Health Studies Denta: Jurnal Kedokteran Gigi
Arwin Diva Nafida
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Dentistry Health Professions

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THE EFFECT OF PREHEATING AT 39o AND 60o ON COMPRESSION STRENGTH OF BULK-FILL COMPOSITE RESIN Rinawati Satrio; Ryana Budi Purnama; Arwin Diva Nafida
Journal of Vocational Health Studies Vol. 9 No. 2 (2025): November 2025 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V9.I2.2025.117-122

Abstract

Background: The incremental placement technique for composite resin may lead to bond failures and air entrapment between resin layers. Bulk-fill composite resin, which can be applied to cavities depths of up to 4 - 5 mm, is expected to have good compressive strength so that it can resemble natural tooth structures. Purpose: This study aimed to evaluate the effect of preheating on the compression strength of bulk-fill composite resins at 39oC and 60oC. Method: This research type was a laboratory experiment employing a post-test control group design. A total of 27 cylindrical bulk-fill composite resin specimens were divided into three groups: group 1 was preheated at 39oC, group 2 at 60oC, and group 3 served as the control group. The samples were then immersed in distilled water and stored in an incubator at 37oC for 48 hours. Compressive strength test was measured using a Universal Testing Machine. Result: One-way ANOVA statistical test showed that there were significant differences in the three groups (p-value < 0.05). A post-hoc Bonferroni test was carried out to compare between groups and indicated a significant difference between the 600 preheated group and the control group. Conclusion: Preheating at 39oC and 60oC affects the compression strength of bulk-fill composite resin.
the Perbedaan Kekerasan Permukaan Resin Komposit Setelah Paparan Asap Rokok Filter dan Rokok Elektrik Alvi Rizqi Amaliyah; Arwin Diva Nafida; Berta Ivana Priladiantika; Bambang Tri Hartomo
Denta Journal Kedokteran Gigi Vol 16 No 2 (2022): Agustus
Publisher : Fakultas Kedokteran Gigi Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/denta.v16i2.2

Abstract

Background: Composite resin is a dental filling material that has several mechanical properties, one of which is surface hardness. Surface hardness can increase due to several factors such as smoking habits. Filter cigarette is the second most common type of cigarette in Indonesia and electric cigaretteis the third most common type of cigarette in Indonesia. Both types of cigarettes can affect the surface hardness of the composite resin due to a decrease in the pH of saliva produced from cigarette smoke. Objective: This study aimed to determine the difference in surface hardness of thecomposite resin after exposure to filter cigarette smoke and electric cigarette. Methods: 27 samples of nanohybrid composite resin were divided into three groups. Group 1 as a control group was immersed in artificial saliva and was not exposed to cigarette smoke, group 2 wasthe group that was treated with filter cigarette smoke and group 3 was the group that was treated with electric cigarette. Furthermore, the groups were tested for surface hardness using a Vickers hardness tester. Results: The surface hardness test of the composite resin showed an increase in the control group and a decrease in the treatment group, with the highest decrease in the filter cigarette smoke treatment group. The results of the paired t-test and one-way ANOVA test showed that the p-value was >0.00 so there was no difference between the pre-test and post-test mean differences in each group and there was no difference between the mean of each group Conclusion: There was no difference before and after exposure to filter cigarette or electric cigarette smoke.
Co-Authors Alvi Rizqi Amaliyah Bambang Tri Hartomo Berta Ivana Priladiantika Rinawati Satrio Ryana Budi Purnama