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Dental alginate impression waste as additional fertiliser for plant yields and soil quality Frahdian, Tommy; Hasratiningsih, Zulia; Karlina, Elin; Herdiyantoro, Diyan; Takarini, Veni
Padjadjaran Journal of Dentistry Vol 30, No 1 (2018): March
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Introduction: Dental alginate impression material is the most common material used in dentistry. However, dental alginate waste (DAW) is one of the causes of the increasing number of dentistry and medicinal wastes. This research was aimed to discover the effect of dental alginate impression waste as additional fertiliser on the plant yields by determining the weight of cauliflower crop, and towards the quality of soil by determining the soil pH (UltisolÂ® Jatinangor). Methods: The experiment was using a randomised block design with 4 treatments and 7 times replications. The treatment consisted of A0 (0% DAW as control), A1 (0.01% DAW), A2 (0.1% DAW), and A3 (1% DAW). Results: The weight of cauliflower after addition of DAW in group A0 was 72.78; A1 was 139.82); A2 was 130.69; and A3 was 60.72). While the pH soil in group A0 was 5.92; A1 was 6.07; A2 was 6.02; and A3 was 6.26. The treatment in the A1 and A2 groups were found as the significant doses that able to increase the cauliflower weight for consecutively 1.92 times and 1.80 times compared to the control group, while on the soil quality improvement (soil pH), the addition of DAW was not significantly affected. Conclusion: It can be concluded that the addition of dental alginate waste at the dose of 0.01% and 0.1% increased the weight of cauliflower, but has no significant effect on the soil quality.

Porselen fusi logam dan porselen penuh: Performa yang lebih baik? Gunawan, Joseph; Takarini, Veni; Hasratiningsih, Zulia
Jurnal Kedokteran Gigi Universitas Padjadjaran Vol 29, No 3 (2017): Desember
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Pendahuluan: Permintaan porselen sebagai salah satu bahan restorasi kedokteran gigi semakin meningkat. Secara umum, praktisi mengetahui bahwa terdapat dua jenis porselen yang dapat dipesan dari laboratorium kedokteran gigi yaitu porselen fusi logam dan porselen penuh. Namun, praktisi sering bingung dalam memilih restorasi yang tepat sesuai kasus. Studi literatur ini bertujuan untuk memberikan pengetahuan untuk membantu praktisi dalam memilih penggunaan porselen fusi logam atau porselen penuh. Metode: Literatur review ini dilakukan dengan cara mengumpulkan artikel dari jurnal-jurnal dan buku-buku yang berhubungan dengan Porselen fusi logam dan porselen penuh. Kemudian dianalisis dan dipaparkan Telaah Pustaka: Porselen fusi logam memiliki kekuatan dan kekerasan yang lebih tinggi daripada beberapa jenis porselen penuh. Namun, porselen fusi logam memerlukan ruang yang lebih tebal dan kandungan logamnya mengurangi estetik. Porselen fusi logam juga bertentangan dengan konsep metal-free dentistry. Harga logam yang lebih murah menyebabkan harga restorasi porselen fusi logam juga lebih murah dibanding porselen penuh. Pembahasan. Dalam menentukan performa yang lebih baik, evaluasi dapat dilakukan hanya dengan melihat bahan yang digunakan pada suatu restorasi. Evaluasi holistik dan struktural juga perlu dilakukan untuk mengetahui performa pada kesatuan restorasi. Kelebihan dan kekurangan porselen fusi logam dan porselen penuh perlu dijadikan pertimbangan dalam pemilihan dan penempatan restorasi yang akan digunakan. Simpulan: Performa yang lebih baik akan ditunjukkan apabila jenis porselen disesuaikan dengan karakteristik gigi asli dan keadaan mukosa oral yang digantikan serta sesuai dengan keinginan dan kemampuan pasien.Introduction: Demand for porcelain as the restorative materials in dentistry is increasing. Dental practitioners know that there are two types of porcelain that can ordered from dental laboratory, which are metal fusion and full porcelain. However, dental practitioners often confused in choosing which restoration is appropriate for certain cases. This literature study was aimed to provide knowledge to help dental practitioners in the proper selection in the usage of metal fusion or full porcelain. Methods: This literature review was conducted by collecting articles from journals and books related to metal fusion and full porcelain, then analysed and presented in the manuscript. Literature Review: Metal fusion porcelain had higher strength and hardness than the full porcelain types. However, metal fusion porcelain required a thicker space, and its metal content reducing the aesthetical aspect. Metal fusion porcelain also contradicted the concept of metal-free dentistry. The lower price of the metal compound had caused the low price of the metal fusion porcelain compared to the full porcelain. Discussion: In determining better performance, evaluation can be performed simply by looking at the materials used in restoration. A holistic and structural evaluation was also necessary to determine the performance of the restoration unit. The advantages and disadvantages of metal fusion and full porcelain should be taken into account in the selection and placement of the restoration used. Conclusion: Better performance will be shown if the porcelain type was managed to adapting with the original teeth characteristics and the oral mucosal state replaced, and also in accordance with the wishes and abilities of the patient.

Perbandingan porselen kedokteran gigi swa-sintesis berbahan baku pasir felspar Pangaribuan dan Sukabumi Joseph Gunawan; Dede Taufik; Veni Takarini; Zulia Hasratiningsih
Majalah Kedokteran Gigi Indonesia Vol 3, No 3 (2017): December
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Comparison self-synthesized dental porcelain between feldspar from Pangaribuan and Sukabumi. Dental porcelain material as one of the esthetic indirect restorations in Indonesia is mostly imported. In fact, Indonesia is really rich of natural raw materials, including feldspar, silica, and kaolinite. The aim of this study is to synthesize the dental porcelain made from Indonesia’s two different originates, which are Pangaribuan and Sukabumi. This study was prepared by fritting and sintering the mixture of 65% wt feldspar (from Sukabumi and Pangaribuan), 25% wt silica, 5% wt kaolinite, and 5% wt potassium salt. The porcelains obtained were evaluated using X-Ray Diffraction (XRD). The results revealed that quartz and leucite were found in the composition of Pangaribuan sand that successfully showed more translucencies compared to Sukabumi sand which only imparted quartz on its component. This study shows that dental porcelain from Pangaribuan sand is successfully self-synthesized, on the other hand Sukabumi sand has not been successfully synthesized. These findings develop on a good prospect of esthetic dental porcelain made from Indonesian natural sand. ABSTRAKBahan porselen kedokteran gigi sebagai salah satu restorasi indirek estetik di Indonesia kebanyakan didatangkan dari luar negeri. Indonesia sebenarnya sangat kaya dengan bahan baku porselen kedokteran gigi seperti felspar, silika, dan kaolin. Tujuan penelitian ini adalah melakukan sintesis porselen kedokteran gigi dari 2 jenis pasir alam Indonesia yaitu Pangaribuan dan Sukabumi. Komposisi yang digunakan yaitu 65% wt felspar, 25% wt silika, 5% wt kaolin, dan 5% wt garam kalium, dicampur kemudian dilakukan fritting serta sintering. Dua komposisi porselen dibuat dengan bahan dasar berbeda yaitu felspar dari Pangaribuan dan Sukabumi. Kedua porselen yang telah disintering kemudian dievaluasi menggunakan X-Ray Diffraction (XRD). Hasilnya adalah kuarsa dan leusit ditemukan pada porselen dengan komposisi pasir Pangaribuan yang juga memberikan hasil lebih translusen secara visual dibandingkan dengan porselen dengan komposisi pasir Sukabumi yang hanya memperlihatkan hasil kuarsa. Hal ini menunjukkan bahwa porselen dengan komposisi bahan dasar pasir Pangaribuan berhasil disintesis dibandingkan komposisi bahan dasar pasir Sukabumi.Penemuan ini dapat memberikan peluang yang baik dalam pembuatan porselen kedokteran gigi yang berasal dari pasir alam Indonesia.

Performa porselen fusi logam dan porselen penuhPerformance of metal fusion and pure porcelain Joseph Gunawan; Veni Takarini; Zulia Hasratiningsih
Jurnal Kedokteran Gigi Universitas Padjadjaran Vol 29, No 3 (2017): Desember
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Pendahuluan: Permintaan porselen sebagai salah satu bahan restorasi kedokteran gigi semakin meningkat. Secara umum, praktisi mengetahui bahwa terdapat dua jenis porselen yang dapat dipesan dari laboratorium kedokteran gigi yaitu porselen fusi logam dan porselen penuh. Namun, praktisi sering bingung dalam memilih restorasi yang tepat sesuai kasus. Studi pustaka ini bertujuan untuk memberikan pengetahuan untuk membantu praktisi dalam memilih penggunaan porselen fusi logam atau porselen penuh. Studi Pustaka: Porselen fusi logam memiliki kekuatan dan kekerasan yang lebih tinggi daripada beberapa jenis porselen penuh. Namun, porselen fusi logam memerlukan ruang yang lebih tebal dan kandungan logamnya mengurangi estetik. Porselen fusi logam juga bertentangan dengan konsep metal-free dentistry. Harga logam yang lebih murah menyebabkan harga restorasi porselen fusi logam juga lebih murah dibanding porselen penuh. Penentuan performa yang lebih baik, dapat dilakukan melalui evaluasi dengan melihat bahan yang digunakan pada suatu restorasi. Evaluasi holistik dan struktural juga perlu dilakukan untuk mengetahui performa pada kesatuan restorasi. Kelebihan dan kekurangan porselen fusi logam dan porselen penuh perlu dijadikan pertimbangan dalam pemilihan dan penempatan restorasi yang akan digunakan. Simpulan: Performa yang lebih baik akan ditunjukkan apabila jenis porselen disesuaikan dengan karakteristik gigi asli dan keadaan mukosa oral yang digantikan serta sesuai dengan keinginan dan kemampuan pasien.Kata kunci: Porselen fusi logam, porselen penuh. ABSTRACTIntroduction: The demand for porcelain as one of the restorative materials for dentistry is increasing. Generally, practitioners know that there are two types of porcelain can be ordered from dental laboratories, namely metal fusion porcelain and pure porcelain. However, practitioners often confused in choosing the right restoration for a case. This literature study was aimed to provide the knowledge to help practitioners choose the proper porcelain. Literature Review: Metal fusion porcelain had higher strength and hardness than some full porcelain types. However, metal fusion porcelain required thicker space and reduced metal content. Metal fusion porcelain also contradicted with the concept of metal-free dentistry. Lower metal prices caused the price of metal fusion porcelain restorations to be having the lower cost than pure porcelain. Determination of better performance can be done through evaluation by looking at the materials used in restoration. The holistic and structural evaluation also needs to be done to determine the performance of the restoration unit. The advantages and disadvantages of metal fusion porcelain and full porcelain need to be taken into consideration in the selection and placement of the restoration to be used. Conclusion: Better performance will be shown if the type of porcelain adapted to the characteristics of the original tooth and the oral mucosal conditions replaced as well as by the patient’s wishes.Keywords: Metal fusion porcelain, pure porcelain.

Pengaruh partikel filler terhadap modulus elastisitas resin komposit Effect of filler particles on the elastic moduli of resin composites Veni Takarini; Nina Djustiana; Renny Febrida
Journal of Dentomaxillofacial Science Vol. 11 No. 1 (2012): Formerly Jurnal Dentofasial ISSN 1412-8926
Publisher : DiscoverSys Inc.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15562/jdmfs.v11i1.292

Modulus of elasticity is one of the mechanical properties of composite resins affects the resistance to deformation,the strength of bonding with tooth structure and wear resistance. Modulus of elasticity is determined by the volumefraction of filler particles as the inorganic phase composite resin. This literature study aims to evaluate the size,shape and type of filler particles that affect the modulus of elasticity for composite resin. In a constant volumefraction, the larger size of filler material tends to make more rigid while irregular shape of particles produceshigher modulus of elasticity than spherical form of particles. In addition, the type of filler particles also determinesthe modulus of elasticity for resin composite, such as silica as the main type of filler particles will enhance themodulus of elasticity whereas zirconium can result in a higher stiffness. In order to get composite resin restorationwith appropriate modulus of elasticity the necessary knowledge about the effect of different filler particle isrequired.

Potensi Damar Indonesia Sebagai Bahan Baku Material Kedokteran Gigi Kosterman Usri; Elin Karlina; Veni Takarini
Jurnal Material Kedokteran Gigi Vol 9 No 1 (2020): JMKG Vol 9 No 1 Maret 2020
Publisher : Ikatan Peminat Ilmu Material dan Alat Kedokteran Gigi (IPAMAGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jmkg.v9i1.557

One of the natural resins in the world market which is dominated by production from Indonesia is damar. Damar is a resin produced by the Shorea javanica tree. This resin is known to have the best quality compared to other types of resin. In Indonesia, this plant grows well in Sumatra, Kalimantan, Sulawesi, and Maluku, but is mainly produced in the Krui Coastal area of Lampung in an agroforest system known as Repong Damar. From the Shorea javanica tree, two types of resin are produced, namely damar mata kucing and damar batu. Damar mata kucing is obtained by tapping while rock resin is obtained by picking up resin which drips naturally onto the ground. The resin quality standard is stipulated in the Standar Nasional Indonesia (SNI) 2900.1:2012 for visual test and SNI 2900.2:2013 for for laboratory tests. Resin has properties in accordance with the requirements of dental materials, such as white to yellow colour, non-volatile, and insoluble in water. But it also has unsuitable properties such as brittle, sticky at room temperature, not heat resistant, flammable, and will change color when stored for a long time. It is concluded that resin modification has the potential to be used as raw material for dentistry, but it needs to be modified and its mechanical properties need to be tested.

Berbagai pertimbangan dokter gigi dalam memilih produk bahan tambal: studi observasional Harlinton, Andrian Jonathan; Usri, Kosterman; Takarini, Veni
Padjadjaran Journal of Dental Researchers and Students Vol 7, No 2 (2023): Juni 2023
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjdrs.v7i2.41086

ABSTRAKPendahuluan: Dokter gigi sebagai pengguna dan pembeli produk bahan tambal tentunya memiliki berbagai pertimbangan dalam memilih produk bahan tambal yang akan digunakan dalam merawat pasien. Terdapat beberapa pertimbangan yang dipikirkan oleh dokter gigi saat memilih suatu produk material bahan tambal, diantaranya yaitu pertimbangan kualitas, pertimbangan harga dan pertimbangan-pertimbangan lainnya. Penelitian ini bertujuan untuk melihat gambaran dari berbagai pertimbangan dokter gigi dalam memilih produk bahan tambal. Metode: Jenis penelitian ini merupakan penelitian deskriptif yang menggunakan teknik sampel insidental. Populasi penelitian ini adalah seluruh dokter gigi yang terdaftar pada organisasi PDGI Kota Bandung, dengan sampel berjumlah 315 dokter gigi. Penelitian ini menggunakan kuesioner daring yang berisi 10 butir pertanyaan mengenai berbagai pertimbangan dari dokter gigi dalam memilih suatu produk bahan tambal, yang menggunakan skala Likert dengan skor 1-5. Uji validitas dari penelitian ini menggunakan uji bivariate pearson, sedangkan untuk uji reliabilitas menggunakan uji test-retest. Hasil: Setelah kuesioner dibagikan ke seluruh sampel, skor Likert yang didapatkan dihitung reratanya menggunakan microsoft excel. Secara berurutan berbagai pertimbangan dan skor Likert reratanya adalah: kualitas bahan tambal (4,83), kemudahan aplikasi (4,58), biokompatibilitas (4,56), ketersediaan (4,28), harga (4,18), pilihan personal (4,03), ulasan (4,00), diskon (3,60), merek (3,58), kemasan (2,97). Simpulan: pada penelitian kali ini penulis menyimpulkan pertimbangan kualitas, biokompatibilitas dan kemudahan aplikasi dari bahan tambal, merupakan 3 pertimbangan utama yang mempengaruhi dokter gigi dalam memilih suatu produk bahan tambal gigi. Sedangkan pertimbangan kemasan produk merupakan pertimbangan yang kurang diperhatikan oleh dokter gigi saat memilih suatu produk bahan tambal.KATA KUNCI: bahan tambal gigi, pertimbangan, pemilihan produkDentists' Considerations in Choosing Dental Filling Material Products: observational StudyABSTRACTIntroduction: Dentists as users and buyers of filling material products have various considerations in choosing filling material products to treat their patients. Several considerations are made by dentists when selecting and purchasing a filling material product, including quality considerations, price considerations, and other considerations. This research intends to see the overview of various considerations used by dentists in choosing dental fillings product. Methods: The type of this research is descriptive research using incidental sampling techniques. The population of this study were all dentists registered within the organization of PDGI in the City of Bandung, with a sample of 315 dentists. This research used an online questionnaire containing 10 Likert scale questions regarding various considerations from dentists in choosing a filling material product, with a score of 1-5. The validity test of this research used bivariate pearson, while the reliability test used test-retest Results: After the questionnaires were distributed to all samples, the Likert scores obtained were averaged using Microsoft Excel. Sequentially the various considerations and their average Likert score are: quality of filling material (4.83), ease of application (4.58), biocompatibility (4.56), availability (4.28), price (4.18), personal preference (4.03), product reviews (4.00), discounts (3.60), brands (3.58), and packaging (2.97). Conclusion: in this research the authors conclude that considerations of quality, biocompatibility, and ease of application in dental filling material products are the 3 main considerations that influence dentists in choosing a dental filling product. Meanwhile, consideration of product packaging is a consideration that dentists pay little attention to when choosing a product for dental filling materials.KEY WORDS: dental filling material, choosing product, considerations

Centrifugation effect on size distribution of organic dental filler made from glutinous rice flour Takarini, Veni; Asri, Lia Amelia Tresna Wulan; Djustiana, Nina; Hadi, Bambang Kismono
Padjadjaran Journal of Dentistry Vol 34, No 2 (2022): July
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol34no2.40711

ABSTRACTIntroduction: Organic fillers made from the green-synthesis process can be utilized in dental treatment due to their non-toxic characteristic of the oral environment. Dental fillers must be smaller to improve their mechanical, physical, and biological properties. Material processing and centrifugation contribute to the size of processed materials. This study evaluates the effect of different centrifugation speeds on the size and distribution of glutinous rice flour as organic dental filler. Methods: This experimental study uses glutinous rice flour suspended in water and then centrifuged at different speeds of 3000 and 6000 rpm compared to untreated glutinous rice flour as control. The particle size was examined using Scanning Electron Microscope (SEM) and Dynamic Light Scattering (DLS). Next, Fourier Transform Infra Spectroscopy (FTIR) and X-ray Diffraction (XRD) were performed to evaluate whether there were structure and crystallinity changes. Finally, the cytocompatibility of fillers was examined by a cell viability test. Results: Centrifugation of glutinous rice flour at 3000 rpm resulted in smaller average size particles, evenly distributed, and higher crystallinity than other groups. There were no changes in functional groups, as shown by FTIR spectra. However, the processed samples were more amorphous compared to the control. Importantly, the processed samples appeared to be non-toxic, with a range of cell viability of 82.75-86.67% after 24 h incubation. Conclusion: Centrifugation speed of 3000 rpm has decreased in size, and a more homogenous particle size of organic filler made from glutinous rice flour. Importantly, it improved the cytocompatibility of particles compared to untreated control. Altogether, we proposed this organic material as a new potential material in the dental application that can be further investigated. Keywords: centrifugation speed; size distribution; organic dental filler; glutinous rice flour

Flexural strength comparison of self-synthesised porcelain with the sintering temperature of 1150 degree Celsius and 1200 degree Celsius Gunawan, Joseph; Taufik, Dede; Takarini, Veni; Hasratiningsih, Zulia
Padjadjaran Journal of Dentistry Vol 30, No 3 (2018): November 2018
Publisher : Universitas Padjadjaran

Introduction: Porcelain must have sufficient flexural strength to withstand mastication forces. The flexural strength of porcelain can be influenced by the maturity level of porcelain related to the temperature and sintering time. The purpose of this study was to compare the flexural strength of Indonesian natural sand self-synthesised porcelain with different sintering temperatures. Methods: Self-synthesised porcelain powder, with the composition of 65% Pangaribuan felspar, 25% Belitung silica, 5% Sukabumi kaolin, and 5% potassium salt, were condensed into 10 samples with the size of 7cm x 2cm x 0.4cm. A total of 5 samples were each burned at the temperature of 1150°C and 1200°C. Flexural strength test was performed using the Universal Testing Machine (Netzsch™) with the lowest load of 7.5 kg, and the data obtained was calculated using the bending strength formula. Result: The average flexural strength of self-synthesised porcelain at the sintering temperature of 1150°C was 26.678 MPa, while at the temperature of 1200°C was 39.038 MPa. Conclusion: This study concluded that Indonesian natural sand self-synthesised porcelain had a lower flexural strength at the sintering temperature of 1150°C than at the temperature of 1200°C.Keywords: Flexural strength, self-synthesised porcelain, sintering temperature.

Dental alginate impression waste as additional fertiliser for plant yields and soil quality Frahdian, Tommy; Hasratiningsih, Zulia; Karlina, Elin; Herdiyantoro, Diyan; Takarini, Veni
Padjadjaran Journal of Dentistry Vol 30, No 1 (2018): March 2018
Publisher : Universitas Padjadjaran

Introduction: Dental alginate impression material is the most common material used in dentistry. However, dental alginate waste (DAW) is one of the causes of the increasing number of dentistry and medicinal wastes. This research was aimed to discover the effect of dental alginate impression waste as additional fertiliser on the plant yields by determining the weight of cauliflower crop, and towards the quality of soil by determining the soil pH (Ultisol® Jatinangor). Methods: The experiment was using a randomised block design with 4 treatments and 7 times replications. The treatment consisted of A0 (0% DAW as control), A1 (0.01% DAW), A2 (0.1% DAW), and A3 (1% DAW). Results: The weight of cauliflower after addition of DAW in group A0 was 72.78; A1 was 139.82); A2 was 130.69; and A3 was 60.72). While the pH soil in group A0 was 5.92; A1 was 6.07; A2 was 6.02; and A3 was 6.26. The treatment in the A1 and A2 groups were found as the significant doses that able to increase the cauliflower weight for consecutively 1.92 times and 1.80 times compared to the control group, while on the soil quality improvement (soil pH), the addition of DAW was not significantly affected. Conclusion: It can be concluded that the addition of dental alginate waste at the dose of 0.01% and 0.1% increased the weight of cauliflower, but has no significant effect on the soil quality.

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