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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.

Flexural strength comparison of self-synthesised porcelain with the sintering temperature of 1150 degree Celsius and 1200 degree Celsius Joseph Gunawan; Dede Taufik; Veni Takarini; Zulia Hasratiningsih
Padjadjaran Journal of Dentistry Vol 30, No 3 (2018): November 2018
Publisher : Faculty of Dentistry 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 Tommy Frahdian; Zulia Hasratiningsih; Elin Karlina; Diyan Herdiyantoro; Veni Takarini
Padjadjaran Journal of Dentistry Vol 30, No 1 (2018): March 2018
Publisher : Faculty of Dentistry 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.

Preliminary study on cells viability based on toxicity effect of varnish fluoride made from Indonesian de-waxed shellac Nina Djustiana; Veni Takarini; Zulia Hasratiningsih
Padjadjaran Journal of Dentistry Vol 31, No 2 (2019): July 2019
Publisher : Faculty of Dentistry Universitas Padjadjaran

Introduction: Varnish fluoride has the ability to prevent enamel demineralization. De-waxed shellac that mostly used for fruits coating, now is applied as varnish fluoride materials. This de-waxed shellac is quite potential since the product can be found from Indonesian sources. The research aims to describe the toxicity effect of varnish fluoride made of de-waxed shellac by measuring the viability of the fibroblast cells. Methods: The research method that was used in this study is in vitro experimental method, which using the tooth that had been smeared with varnish fluoride contacted with fibroblast cells REF (Rat Embryonic Fibroblast) for 4, 8, and 24 hours. The toxicity effect of varnish fluoride was then measured by cell viability. Results The results show that the average cells viability on 4 hours contacted tooth was 88%, while average cells viability on 8 hours contacted tooth was 74%, and lastly the average cells viability on 24 hours contacted tooth was 63%. Conclusion: The conclusion of this preliminary study on cells viability based on toxicity effect of varnish fluoride made from Indonesian de-waxed shellac are different based on contacted time.Keywords: Cell viability, toxicity effect, varnish fluoride, Indonesian de-waxed shellac

Fabrication of fluorapatite cement as an anti-caries agent based on calcium phosphate cement Annisatul Arrufaidhah Saidin; Arief Cahyanto; Veni Takarini
Padjadjaran Journal of Dentistry Vol 33, No 2 (2021): July 2021
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no2.34840

Introduction: Many research proves that fluorapatite cement is one of the materials in dentistry that can restore and treat severe carious lesions. The current research was aimed to study the chemical reaction of calcium phosphate cement (CPC), calcite, and calcium fluoride as a base in fabricating the fluorapatite cement as an anti-caries agent. Methods: The type of research is a descriptive method. The preparation of DCPA was initially performed by measuring 0.2g of DCPA powder which was prepared for 15 samples. Fluorapatite was fabricated using dicalcium phosphate anhydrous (DCPA), calcite (CaCO3) as the precursor to form carbonate apatite crystal, and calcium fluoride (CaF2). CaF2 will be mixed into sodium dihydrogen phosphate (NaH2PO4) with different percentages, 1%, 5%, and 10%. The samples were then incubated for 24 hours at 37˚C under 100% moisture condition. X-Ray Diffraction (XRD) characterization will be conducted to determine the phase composition and crystallinity of fluorapatite. In addition, the samples were analyzed with the Fourier Transform Infrared Spectroscopy (FTIR) examination to determine the crystal functional group. Results: All of the samples showed a satisfactory setting reaction. The XRD characterization results showed the formation of the crystal apatite phase at 32.43˚ and 32.83˚. The FTIR results indicated the stretching vibration of the fluoride compound at 1400 cm-1. The intensity formation of the apatite crystal phase at particular degrees was not as high as the standard hydroxyapatite data due to the incomplete formation of apatite crystal within 24 hours—the stretching vibration presence in the FTIR graph at 1400 cm-1 proven to be fluorapatite cement. Conclusions: Fluorapatite cement as an anti-caries agent can be fabricated through the mixing process of DCPA, CaCO3, and CaF2 powders with NaH2PO4 solution.

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.

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