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Padjadjaran Journal of Dentistry
Published by Universitas Padjadjaran
ISSN : 19790201     EISSN : 25496212     DOI : -
Core Subject : Health, Science,
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health
Padjadjaran Journal of Dentistry or known as PJD, is an English-language scientific periodicals published by the Faculty of Dentistry Universitas Padjadjaran thrice a year on every March, July and November. The submission process of manuscript is open throughout the year. All submitted manuscripts will go through the double-blind peer review and editorial review before being granted with acceptance for publication. Designed as a medium of information and scientific knowledge, Padjadjaran Journal of Dentistry publishes numerous research articles, in the area of Oral Biology, Dental Material Science and Technology, Oral and Maxillofacial Surgery, Pedodontics, Dental Public Health and Community Dentistry, Conservative Dentistry, Periodontics, Prosthodontics, Orthodontics, Oral Medicine, Dental Radiology, as well as with their development through interdisciplinary and multidisciplinary approach. Initially published as Padjadjaran Journal of Dentistry (PJD) magazine ISSN 1979-0201(print) on 2007 in form of printed issues. In 2017, the magazine had its online published version under the same with ISSN 2549-6212 (online) in accordance with the policy of LIPI. Padjadjaran Journal of Dentistry has been using Open Journal System requiring all writers to register in advance before they are allowed to upload the manuscript they write online. Afterwards, the editors, peer reviewers, and writers can monitor the manuscript processing. Several other changes are informed in the Journal History.
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Articles 12 Documents
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Search results for , issue "Vol 34, No 2 (2022): July" : 12 Documents clear
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

Abstract

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
Effect of 3-methacryloxypropyltrimethoxysilane on diametral tensile strength of rice husk silica-based dental composite Febrida, Renny; Wulanhapsari, Madeiva; Faza, Yanwar; Karlina, Elin; Cahyanto, Arief; Solihudin, Solihudin; Eddy, Diana Rakhmawati
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.vol34no2.41242

Abstract

ABSTRACTIntroduction: Rice husk silica has been studied as a filler in dental composite, however, the mechanical properties of the resulting composites are below the commercial due to the poor surface modification between silica and resin matrix. 3-methacryloxyprpyltrimethoxysilane (MPTS) is one of the coupling agents that are effective to modify the silica surface. The purpose of this study to analyze the effect of MPTS on the diametral tensile strength (DTS) of the self-made composite using rice husk silica.  Methods: The research type of this study was an experimental research laboratory. The samples (26 samples) were divided into two groups, namely the test group (using MPTS-modified silica) and the control group (using non-modified silica). The samples were cylindrical in shape with a diameter of 6.0 ± 0.1 mm and a height of 3.0 ± 0.1 mm according to ANSI/ADAS No. 27, 1993 and ISO 4049, 1988. The Fourier Transform Infrared (FTIR), HORIBA, was used to characterize the MPTS grafting on the silica surface. The DTS value is measured by Universal Testing Machine (UTM), Lloyd LRX Plus. Results: FTIR presents the additional peak of carboxyl and methacryloyl group at 1716, 1555, and 1410 cm-1 wavenumber, respectively in MPTS-modified silica. The DTS value of the test group was 43.40 ± 4.43 MPa and the control group was 25.80 ± 2.63 MPa. The test group was significantly higher than the control group (p-value = 0.001). Conclusion: The MPTS is effective to enhance the DTS value of rice husk silica-based composite.Keywords: Rice husk silica; dental composite; diametral tensile strength; 3-methacryloxypropyltrimethoxysilane.

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