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PERBEDAAN RESISTENSI CYCLIC FATIGUE FRACTURE DUA JENIS HEAT TREATED ROTARY FILES Iskandar, Mochammad Marshalldanard A.; Melaniwati; Pratiwi, Deviyanti
E-Prodenta Journal of Dentistry Vol 9 No 1 (2025)
Publisher : Fakultas Kedokteran Gigi UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.eprodenta.2025.009.01.3

Abstract

Background: NiTi rotary file is an instrument that famous for its flexible and strong properties. Instrument fracture during preparation due to cyclic fatigue is one of the main causes of rotary file fracture. The geometric shape of a rotary file will determine its resistance properties because it is in direct contact with the root canal wall and will determine its resistance to cyclic fatigue. Objective: This study aims to determine the difference in cyclic fatigue fracture resistance of two heat treated rotary files that have different geometric shape. Methods: The research inserted rotary files with an endomotor operating at 400 rpm and 2.0 torque into artificial stainless steel root canals with a 90-degree curvature and 2 mm diameter, treated with 5.25% NaOCl. It included two groups (flat design and S-Shape), each with 5 samples, and measured the duration of each sample using a stopwatch. Results: This research show that there is a significant difference in time (p<0.05). Conclusion: The flat design rotary file shows stronger resistance to cyclic fatigue fracture compared to the S-Shape rotary file.
The Effect of Rhinoceros Beetle Nanochitosan on Compressive Strength of Glass Ionomer Cement Pratiwi, Deviyanti; Salim, Richentya Feiby; Komariah, Komariah
Journal of Indonesian Dental Association Vol 4 No 2 (2021): October
Publisher : Indonesian Dental Association

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Abstract

Introduction: : Glass Ionomer Cement (GIC) is a dental restorative material that is widely modified to improve mechanical properties, such as compressive strength. Biomaterial that can be used to modify GIC is nanochitosan, a material that has been studied to improve the mechanical properties of GIC. Nanochitosan from Xylotrupes gideon can increase enamel hardness on home bleaching application. Objective: To investigate the effect of nanochitosan from Xylotrupes gideon on compressive strength of GIC. Methods: The research type conducted was an experimental laboratory. Samples of 6 mm (height) × 4 mm (diameter) GIC divided into 10 groups (n=5) that was modified with 10% v/v nanochitosan solution, 5% v/v nanochitosan solution, 10% w/w nanochitosan powder, and with 5% w/w nanochitosan powder. Samples were stored in an incubator at 37°C for 1 hour and 24 hours before testing. Compressive strength was tested using Universal Testing Machine. Result: Nanochitosan modified GIC decreased in compressive strength. The result of Two-Way ANOVA statistical analysis showed that there was no significant difference (p >0.05) between all test groups, while there was a significant difference between the 1 hour and 24 hours test groups (p <0.05). Conclusion: Nanochitosan from Xylotrupes gideon has no significant effect on the compressive strength of GIC.
The Effect of Horn Beetle Nanochitosan (Xylotrupes gideon) Addition on The Hardness of Glass-ionomer Cement Kurniawan, Florencia Livia; Tjandrawinata, Rosalina; Marpaung, Carolina; Pratiwi, Deviyanti; Komariah, Komariah
Journal of Indonesian Dental Association Vol 5 No 1 (2022): April
Publisher : Indonesian Dental Association

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Abstract

Introduction: Glass ionomer cement (GIC) is a tooth-colored restorative material that is often used by clinical practitioners because it can release fluoride, is easy to apply to teeth and has minimal preparation techniques. The erosion and moisture-sensitive nature of GIC becomes a problem for a long-lasting aesthetic restoration. Therefore, modifications were made to improve its mechanical properties by adding nanochitosan (NCH) from horn beetle (Xylotrupes gideon). Objective: This study aimed to evaluate the effect of adding horn beetle nanochitosan to GIC liquid on the surface hardness and compared with conventional GIC. Methods: Forty cylindrical samples of GIC (GC Fuji® IX Extra, Tokyo-Japan, Lot 1912201) with a diameter of 4 mm and a thickness of 6 mm were divided into 4 groups, namely the GIC control group, GIC modified with 0.5wt%, 1wt%, 2 wt% nanochitosan. Each sample was immersed in artificial saliva for 24 hours and 7 days. Surface hardness before and after immersion was tested using a Vickers Microhardness tester (Shimadzu, Japan). The data were analyzed using the Kruskal Wallis test to determine the effect of horn beetle nanochitosan addition and the Wilcoxon Signed-Ranked test to determine the effect of immersion time on GIC surface hardness. Results: The Kruskal Wallis statistical test showed significant difference (p<0.05) between the control group and the 24 hours treatment group with the addition of 2wt% nanochitosan, which was the highest surface hardness value (133.1 ± 49.0 HV), followed by 1wt% (127.4 ± 25.5 HV) and 0.5wt% (117.7 ± 22.5 HV). The Wilcoxon Signed-Ranked test statistic also showed a significant difference (p<0.05) between the 24-hour and 7-day immersion time with the surface hardness value at 24 hours immersion greater than 7 days. Conclusion: The addition of 0.5wt%, 1wt% and 2wt% horn beetle nanochitosan can increase the GIC surface hardness value. ABSTRAK Pendahuluan: Glass ionomer cement (GIC) merupakan bahan restorasi sewarna gigi yang sering digunakan oleh praktisi klinis karena dapat melepaskan fluor, mudah diaplikasikan pada gigi, dan memiliki teknik preparasi yang minimal. Erosi dan sifat sensitif kelembaban dari GIC menjadi masalah untuk restorasi estetika yang tahan lama. Oleh karena itu, dilakukan modifikasi untuk meningkatkan sifat mekaniknya dengan menambahkan nanokitosan (NCH) dari kumbang tanduk (Xylotrupes gideon). Tujuan: Penelitian ini bertujuan untuk mengevaluasi pengaruh penambahan nanokitosan kumbang tanduk ke dalam cairan GIC terhadap kekerasan permukaan dan dibandingkan dengan Semen Ionomer Kaca (SIK) konvensional. Metode: Empat puluh sampel silinder GIC (GC Fuji® IX Extra, Tokyo-Japan, Lot 1912201) dengan diameter 4 mm dan ketebalan 6 mm dibagi menjadi 4 kelompok, yaitu kelompok kontrol GIC, GIC dimodifikasi dengan nanokitosan 0,5wt%, 1 wt%, 2wt%. Setiap sampel direndam dalam saliva buatan selama 24 jam dan 7 hari. Kekerasan permukaan sebelum dan sesudah perendaman diuji menggunakan Vickers Microhardness tester. Data dianalisis menggunakan uji Kruskal Wallis untuk mengetahui pengaruh penambahan nanokitosan kumbang tanduk dan uji Wilcoxon Signed-Ranked untuk mengetahui pengaruh waktu perendaman terhadap kekerasan permukaan GIC. Hasil: Uji statistik Kruskal Wallis menunjukkan perbedaan bermakna (p<0,05) antara kelompok kontrol dan kelompok perlakuan perendaman 24 jam dengan penambahan nanokitosan 2wt% yang merupakan nilai kekerasan permukaan tertinggi (133,1 ± 49,0 HV), diikuti sebesar 1wt% (127,4 ± 25,5 HV) dan 0,5% (117,7 ± 22,5 HV). Statistik uji Wilcoxon Signed-Ranked juga menunjukkan perbedaan yang nyata (p<0,05) antara lama perendaman 24 jam dan 7 hari dengan nilai kekerasan permukaan pada perendaman 24 jam lebih besar dari 7 hari. Kesimpulan: Penambahan nanokitosan kumbang tanduk 0,5wt%, 1% , dan 2wt% dapat meningkatkan nilai kekerasan permukaan GIC.
Water Temperature’s Effects towards Setting Time of Normal Type Alginate Impression Material Pratiwi, Deviyanti; Sutrisno, Juanita Andriani
Journal of Indonesian Dental Association Vol 3 No 2 (2020): October
Publisher : Indonesian Dental Association

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Abstract

Introduction: Alginate impression material is widely used in dentistry. There are two types of alginate impression based on the setting time: fast setting (type I) and normal setting (type II). Setting time of alginate impression is affected by the ratio of powder and water, water temperature, also types of the alginate impression. In some dental treatments, dentists need to make modifications of alginate impression materials in the normal setting type to speed up the setting time and prevent maintenance delays. Objective: The objective of this study is to determine the effect of water temperature on the setting time of normal type alginate impression material. Methods: This laboratory experimental study were carried out on alginate impression materials of normal type which were tested in three temperature groups (±15°C, ±24°C, and ±40°C). The setting time is measured using a penetrometer in accordance with ANSI/ADA No. 18 equipped with a glass plate and a metal ring mold with a diameter of 30 mm and a height of 16 mm. Results: The results of statistical tests indicate the influence of water temperature on the setting time of the normal type of impression material carried out in all three temperature groups (p<0.05). Mann Whitney Test Results with p<0.05 showed a difference in the average setting time of each temperature group, in which the three groups are ±24°C to ±15°C, ±24°C to ±40°C, and ±15°C to ±40°C. The fastest setting time occurs in the test group with a temperature of ±40°C and the longest occurring in the testing group is ±15°C. Conclusion: There is an increase in the setting time of alginate impression materials in the normal setting type due to the influence of water temperature. Increased setting time by 23,2% faster at the temperature of ±40°C than the normal water temperature.
The Effect Of Mouthwashes On Color Change In Universal Composite Resin Pratiwi, Deviyanti; Natanael, Christian; Liliany Margaretta, Dewi; Tjandrawinata, Rosalina; Suwandi, Trijani
Jurnal Kesehatan Gigi Vol. 11 No. 1 (2024): juni 2024
Publisher : Jurusan Kesehatan Gigi, Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jkg.v11i1.9820

Abstract

Background: The use of mouthwash has increased and become a habit since the Covid-19 pandemic. The use of mouthwash is recommended for prevention. The mouthwashes that American Dental Association (ADA) and Center for Disease Control and Prevention (CDC) recommended are chlorhexidine gluconate (CHX), hydrogen peroxide (H2O2), cetilpyridinium chloride (CPC), povidone iodine (PVP-I), dan chlorine dioxide (ClO₂). Universal composite resin is used for every tooth color requirement and has a chameleon effect that can disguise, eliminate, minimize, and neutralize mismatched colors. This study aims to determine various mouthwashes’ effects on the discoloration of universal composite resin. Method: This research is an experimental laboratory by comparing the color changes before and after treatment. Thirty samples of universal composite resin with a width of 10 mm and a height of 2 mm were divided into 5 mouthwash test groups and 1 control group. Color test using a Vita Easy Shade V spectrophotometer and the data were shown in DE assessment. Result: Data were analyzed with One Way ANOVA on DE assessment with the significance level p<0.05 on 5 test groups. Conclusion: The 5 groups of mouthwashes showed there was a color change in the DE assessment of universal composite resin
Pengaruh Suhu Ruangan Terhadap Distorsi Perubahan Dimensi Wax Selama 24 Jam Kurniawan, Florencia Livia; Tjandrawinata, Rosalina; Pratiwi, Deviyanti; Margaretta, Dewi Liliany; Octarina, Octarina; Eddy, Eddy; Putri, Tansza Setiana
Jurnal Material Kedokteran Gigi Vol 11 No 2 (2022): JMKG Vol 11 No 2 September 2022
Publisher : Ikatan Peminat Ilmu Material dan Alat Kedokteran Gigi (IPAMAGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jmkg.v11i2.1038

Abstract

Wax is a soft and flexible material obtained from plants and insects or made synthetically and composed of high molecular weight organic molecules. One of the properties of dental wax or wax is the property of distortion, namely the return of the modified form of dental wax or wax to its original shape. Wax patterns or wax models are used as wax patterns in the manufacture of orthodontic appliances, complete dentures, and other prostheses that use plastic construction. Base plate wax is a dental wax for denture patterns based on acrylic resin. To evaluate wax distortion that occurs at room temperature for 24 hours. Testing of 141 wax samples placed at room temperature 25°C for 24 hours. One-way ANOVA test revealed a significant difference (p<0.05) in storage of wax at room temperature for 24 hours. There is an effect of temperature and storage time on the amount of wax distortion that occurs.
The Effect of Adding Patchouli Essential Oil (Pogostemon Cablin Benth.) on Setting Time Of GIC Prawira, William; Pratiwi, Deviyanti; Puspitawati, Ria; Elline, Elline; Binartha, Cipthadi Tri Oka
Jurnal Kesehatan Gigi Vol. 12 No. 1 (2025): December 2025
Publisher : Jurusan Kesehatan Gigi, Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jkg.v12i1.12391

Abstract

Essential oils are widely incorporated into dental materials to enhance their antibacterial properties, including patchouli essential oil (PEO) derived from Pogostemon cablin Benth. PEO contains bioactive compounds such as Patchouli Alcohol (PA), phenols, steroids, and terpenoids, which contribute to its antimicrobial activity. This study aimed to evaluate the effect of PEO addition on the setting time of glass ionomer cement (GIC). Twenty cylindrical GIC specimens (2 mm × 10 mm) were tested using Vicat’s needle and divided into four groups based on the powder:PEO:liquid ratios: Group A (control), Group B (2:1:1), Group C (3:1:2), and Group D (3:2:1). Data were analysed using One-Way ANOVA and Tukey’s test (p < 0.05). The addition of PEO to GIC’s liquid is significant (p < 0,05)  decreased the setting time of group B, C, and D. Modifying GIC with PEO showed a significant decrease in setting time in group B with a comparison ratio (2 : 1 : 1). All results remained within ISO 9917-1:2007 limits. Further studies are needed to assess long-term stability and mechanical performance.
THE EFFECT OF NANOCHITOSAN FROM RHINOCEROS BEETLE (Xylotrupes gideon) TOWARDS GIC SURFACE ROUGHNESS ON CRITICAL pH OF THE SALIVA Pratiwi, Deviyanti; Genesis, Gabriel Rainheart; Komariah, Komariah; Tjandrawinata, Rosalina
Odonto : Dental Journal Vol 8, No 1 (2021): July 2021
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.122 KB) | DOI: 10.30659/odj.8.1.73-79

Abstract

Background: Xylotrupes gideon is a harmful insect because it damages the shoots of coconut trees. Xylotrupes gideon has begun to be used in the form of nanochitosan as an alternative in dentistry. The addition of nanochitosan to Glass Ionomer Cement (GIC) material is a modification to improve the properties of GIC, such as surface roughness caused by acidic conditions (critical saliva pH). Nano-sized chitosan is able to increase stability and better absorption, thus inhibit demineralization and increase tooth hardness. This research aimed to investigate the effect of nanochitosan from Xylotrupes gideon on the surface roughness of GIC at critical saliva pH.Method: This research type conducted is an experimental laboratory. Samples of 10 mm (height) x 2 mm (diameter) divided into 2 groups, (A) Unmodified GIC (control group), (B) GIC modified with 10% nanochitosan solution. Samples of the treatment and control group are stored in the incubator at 370C for 1 hour before early surface roughness testing and continued in critical saliva pH (5,5) for 7 days in the incubator before the final test. The surface roughness tester using sutrotonic s-100 series.Result: There was an increase in the surface roughness of conventional GIC by 0.133 µm and GIC nanochitosan by 0.122 µm. The results of the paired t-test before and after immersion in the two groups showed that there was a significant difference (p <0.05) between conventional GIC and nanochitosan GIC. The independent t-test results showed that there was no significant difference (p> 0.05) between the nanochitosan GIC and conventional GIC.Conclusion: Nanochitosan can reduce the surface roughness value of GIC at critical saliva pH, although there is no significant difference to conventional GIC.
Evaluation of Titanium Alloy Surface Roughness After Phosphoric Acid Etching Wijaya, Livia; Suwandi, Trijani; Eddy, Eddy; Tjandrawinata, Rosalina; Erawati, Jeti; Pratiwi, Deviyanti
Odonto : Dental Journal Vol 12, No 3 (2025): December 2025
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.12.3.280-291

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ABSTRACT Background: Tooth loss can be caused by periodontal disease, caries, and other factors. Dental implants made of titanium are a common solution to replace tooth loss. Titanium grade 5 (Ti-6Al-4V) is often chosen for an implant. Modern commercial implant surface roughness (Ra) ranges from 1 to 2 μm. Surface roughness has an important role in osseointegration. The acid etching method can be used to improve surface roughness. This study evaluates titanium alloy surface roughness after etching with varying concentrations of H3PO4 acid.Method: A laboratory experiment with a pre-test and post-test group design. 25 titanium alloy samples were divided into 5 groups (n=5) and treated with saline, HCl 37%, and H3PO4 acid 38%, 48%, and 58%. Surface roughness was measured using a surface roughness tester, while EDS and SEM tests analyzed titanium composition and surface characteristics.Result: The titanium used in this study is a titanium alloy. Surface roughness modification using acid had a higher roughness compare to saline with significant different (p<0.05). Surface roughness in the group H3PO4 48% and 58% had a lower roughness compared to HCl 37% but no significant different (p>0.05). Referring to the SEM results, each acid showed morphological changes on the surface and for saline there were no morphological changes.Conclusion: Varying concentrations of H3PO4 acid can effectively improve the surface roughness of titanium alloys, with solutions at 48% and 58% demonstrating similar effectiveness to 37% HCl acid.
The effect of trigona spp. Propolis extract to saliva substitute ph as xerostomia therapy Cokro, Ingrid Aurelia Genacia; Priandini, Dewi; Pratiwi, Deviyanti; Hasan, Akhmad Endang Zainal
Odonto : Dental Journal Vol 10, No 1 (2023): July 2023
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.10.1.117-124

Abstract

Background: Patients with xerostomia generally have an acidic salivary pH. Low oral pH increases the occurrence of tooth caries and development of oral lesions such as recurrent aphthous stomatitis (RAS) which are prone to occur in patients with xerostomia. Trigona spp. propolis extract with antimicrobial compounds was used as an additional natural ingredient in saliva substitute to inhibit the growth of Streptococcus mutans and prevent the decrease of salivary pH in patients with xerostomia. This study aimed to determine the effect of Trigona spp. propolis extract to saliva substitute pH as therapy for xerostomia with antimicrobial activity. Method: This study was experimental laboratory, namely Post-test only Control Group Design. The propolis Trigona spp. extract used in this study was extracted using maceration method with 70% ethanol as solvent which was then diluted into 5 concentrations 1,25%, 2,5%, 5%, 10%, 20%. This study used Streptococcus mutans (ATCC 25175) and saliva substitute with pH of 6.8. The research includes phytochemical test, absorbance measurement and pH test. Result: There is a significant difference in the pH value between saliva substitute induced with Streptococcus mutans with Trigona spp. propolis extract and the control group. Data analysis using One-way ANOVA test showed a significant value of
Co-Authors Abdul Gani Soulisa Abdul Gani Soulisa Abdul Gani Soulissa Achmad E. Z. Hasan Ade Prijanti Dwisaptarini Advita Azalia Akhmad Endang Zainal Hasan Andrian Nova Fitri Andy Wirahadikusumah Anisa, Syafira Annisa Kesumaningrum Annisa Putri Ariyani Arianne Dwimega Ariesanti, Yessy Ariyani, Annisa Putri Armelia Sari Bernard Ongki Iskandar Binartha, Cipthadi Tri Oka Carolina Marpaung, Carolina Caroline Caroline Citra Puspandari Handayaningrum Cokro, Ingrid Aurelia Genacia Dewi Liliany Margaretta, Dewi Liliany Dewi Priandini Dewi Priandini, Dewi Dhyani Widhianingsih Dody Prayitno Eddy Eddy Eddy Eddy, Eddy Elline Elline, Elline Elsa Prahasti, Anastasia Erawati, Jeti Esa Bella Ferry Sandra Fibryanto, Eko Florencia Livia Kurniawan Gabriel Rainheart Genesis Genesis, Gabriel Rainheart Harryanto Wijaya Harryanto Wijaya Helen Cyntya Andany Ingrid Aurelia Genacia Cokro Intan Farizka Iskandar, Mochammad Marshalldanard A. Izah, Nurul Janti Sudiono Jeddy Jeddy Kesumaningrum, Annisa Komariah Komariah Komariah Komariah Komariah Komariah Komariah Komariah Komariah Liliany Margaretta, Dewi Meidianti, Dwi Harini Endah Melaniwati Mikha Sundjojo Najla Nadiah Natanael, Christian Niko Falatehan Nuroh Arifah Octarina Octarina Octarina Prawira, William Putri Rejeki Ratnasari, Dina Ria Puspitawati Richentya Feiby Salim Richentya Feiby Salim Riko Nofrizal Rosalina Tjandrawinata Rosita Stefani Salim, Richentya Feiby Santosa, Didi Nugroho Sari, Armelia Saristi, Salsabila Shafa Sastra Kusuma Widjaya Shafira Prana, Indira Shariff, Khairul Anuar Soulisa, Abdul Gani Sri Ratna Laksmiastuti Sutrisno, Juanita Andriani Syifa Annisa Tanaya, Namyera Tansza Setiana Putri Taufiq Ariwibowo Teguh, Sharren Thomas Aurelius Dharma Tiffany Hartono Tri Erri Astoeti Trijani Suwandi Trisfilha, Pretty Wijaya, Livia Wita Anggraini Yenny Pragustine Yoana Winardi