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All Journal Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dentistry B-Dent, Jurnal Kedokteran Gigi Universitas Baiturrahmah Padjadjaran Journal of Dental Researchers and Students Makara Journal of Science
Yanwar Faza
Faculty Of Dentistry Universitas Padjadjaran
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Journal : B-Dent, Jurnal Kedokteran Gigi Universitas Baiturrahmah

 1 
SYNTHESIS AND CHARACTERIZATION OF MULLITE-ZIRCONIA NANO PARTICLES BY SOL-GEL METHOD AS FILLER OF DENTAL COMPOSITE Faza, Yanwar; Febrida, Renny
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 11, No 1 (2024): Vol 11 No 1, Juni 2024
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v11i1.1611

Abstract

Background. Currently, researchers are working on the development of dental composite fillers that are composed of a combination of two or more inorganic materials. Objective. The study aims to synthesis mullite-zirconia using the sol-gel method and observe the influence of zirconia on the particle characteristics of the filler including the size of the diameter, distribution and charge of the filler. Methods. The design of this study is descriptive explorative. The study consisted of four sample groups: 100% mullite (M); 85% Muliite - 15% zirconia (MZ15); 80% Mullite - 20% circonia(MZ20); 75% mullites - 25% zirconía (MZ25). The mullite-zirconia filler synthesis was initiated by mixing the hydrolyzed-precursor after hydrolysis stage then were dried for 6 hours at 100 °C. The ZrO2 was mixed with the Mullite according to the prescribed ratio. The sample was then characterized using Particle size analysis and Zeta potential (HORIBA) Result. The results showed that the mullite-zirconia particle sizes decrease as the amount of zirconia added after the hydrolysis phase increases. Sample M, MZ15 and MZ20 showed polydisperse particle distribution while MZ25 showed monodispersed particle distribution. Mullite and mullite-zirconia particle loads in the range of 10-30 mV. This shows that the stability of the particle is incipient Conclusion. Nano-sized mullite-zirconia particles were successfully synthesized using sol-gel methods. Increased zirconium in the mullite-zirconia ratio decreased the diameter of the particle and particle load and resulted in a more homogeneous particle distribution
THE EFFECT OF PRECURSOR CONCENTRATION, pH OF THE SOLUTION AND CARBONATION DURATION ON CACO3 PARTICLE SIZE VIA CARBONATION METHOD Febrida, Renny; Faza, Yanwar
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 11, No 1 (2024): Vol 11 No 1, Juni 2024
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v11i1.1610

Abstract

Background. There are multiple techniques for generating CaCO3, one of which is the carbonation method. Currently, the particle size of CaCO3 is primarily determined by the combined influence of various variables. Objective. This study investigates the effect of precursor concentrations, pH of the solution, and carbonation duration on the size of CaCO3 particles Methods. The type of research in this study is experimental laboratory with a descriptive presentation of data. This study is divided into two stages: first, synthesis of CaCO3 with different concentration of precursors and carbonation duration. Second, it used different pH value of the solution and carbonation duration. The particle size of CaCO3 were characterized using the Particle Size Analyzer (PSA) (Horiba Scientific SZ-100 Nanopartica).  Result. The result show the smallest CaCO3 at first stage, 548 nm, obtained at concentration of 0.75 M with carbonation duration of 30 minutes. The largest CaCO3-size, 6194 nm, is seen at a 0.5 M concentration with a carbonation duration of 10 minutes. The second stage show the smallest particle size, 1165 nm, obtained at a pH value of 8 with a carbonation duration of 60 minutes. Meanwhile, the largest size, 5621 nm, is obtaining at a pH value of 9 with a carbonation duration of 90 minutes Conclusion. The concentration of precursors and the duration of carbonation have no effect on the size of CaCO3 particles, however the pH value of the solution may affect the particle size of CaCO3. It is directly proportional to the pH value of the solution
INFLUENCE OF HCL 0.02 M ON PHASE AND SIZE OF CaCO3 VIA FINE BUBBLE DIFFUSER METHOD AS DENTAL BIOMATERIAL Febrida, Renny; Setyanagari, Sekar Diva; Faza, Yanwar
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 10, No 2 (2023): Vol 10 No 2, Desember 2023
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v10i2.1512

Abstract

Background. Particles of calcium carbonate (CaCO3) have been applied in a number of fields, including as dental biomaterial. Because CaCO3 particles have three distinct polymorphs and complex crystallization behavior, it is difficult to systematically adjust their physical properties for desired applications. Objective. This investigation aims to examine the influence of the addition of the 0.02 M HCl additive on the phase and size of the CaCO3 particles synthesized with the fine bubble diffuser method. Methods. The type of research is descriptive explorative. There were two sample groups in this study, and each group had three replications (n = 3). Group 1 added 0.02 M of HCl as an addition to the as-prepared material, while Group 2 added no HCl at all. The phase of CaCO3 was evaluated by using the FTIR (Thermo Scientific Nicolet iS5), while the particle size was measured via DLS (Horiba Scientifica SZ-100 Nanopartica) Result. The results showed the sample of CaCO3 without any additive posesses Amorphous Calcium Carbonate (ACC) and calcite. Meanwhile, sample of CaCO3 with addition of HCL 0.02 M showed ACC, calcites and vaterite phase. Particle size of CaCO3 without additve is larger than another one. Conclusion. In this study, the addition of the additive HCl 0.02 resulted in a decrease in the pH of the solution resulting in a phase change from clacite to vaterite as well as decreasing the particle size of CaCO3.
SURFACE MODIFICATION OF ALUMINA-SILICA BY ADDITIVE AGENT USING SOL-GEL METHOD AS FILLER DENTAL COMPOSITE Faza, Yanwar; Takarini, Veni; Febrida, Renny; Karlina, Elin
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 10, No 2 (2023): Vol 10 No 2, Desember 2023
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v10i2.1506

Abstract

Background: Macro-sized and inhomogeneous distribution of ceramic filer particles make it difficult to obtain smooth surfaces of dental composite after polishing. Objective. This study aims to synthesize alumina silica (Al2O3-SiO2) fillers using sol gel method with the additives agent chitosan 5%, 10% and polyethylene glycol (PEG) 5% to produce micro particle size and evenly distributed particle as filler dental composite. Methods. The type of research is descriptive explorative. The sol-gel process was utilized to synthesize filler particles of Al2O3-SiO2. TEOS was dissolved in ethanol and mixed with acetic acid as catalyts. Al2(NO3)3 was added into the solution and mixed homogenously. Subsequently, the additive agents (Chitosan 5%, chitosan 10% and PEG) were mixed into the mixture for 30 minutes. Drying the samples for 48 hours at 60°C in the oven. The Dynamic light scattering (DLS) SZ-1 was used to evaluate the size, particle distribution and zeta potential. Result. The results showed that the addition of chitosan 10% produced a smaller size of Al2O3-SiO2 compared to other samples. A homogeneous particle distribution is shown in the sample with PEG 5%. Meanwhile, zeta potential values of the filler particles Al2O3-SiO2 with the addition of chitosan 10% shows the biggest value. Conclusion: The additive agent of chitosan 10% can modify the surface of filler Al2O3-SiO2 in order to inhibit particle growth more effectively but better particle distribution is shown in samples with PEG 5% due to the lower viscosity than chitosan thus it is easily homogenized in the solution
Co-Authors Alex Kesuma Andiesta, Niekla Survia Andri Hardiansyah Arief Cahyanto Azzahra, Fauziah Bambang Sunendar Cahyanto, Arief Eddy, Diana Rakhmawati Elin Karlina Elin Karlina Hakim, Muhammad Lukman Nur Hakim, Muhammad Lukman Nur Hardiansyah, Andri Kosterman Usri, Kosterman Muhammad Asrun Adi Saputra Syam Nabillah Salma, Dinda Jihan Nina Djustiana Nina Djustiana Nina Djustiana Renny Febrida Sanjaya, Arya Setyanagari, Sekar Diva Solihudin, Solihudin Veni Takarini Viona, Nona Wijaya, Dissa Kirana Wulanhapsari, Madeiva Zulia Hasratiningsih, Zulia