Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

1.116

P-Index

This Author published in this journals

All Journal Cosmogov: Jurnal Ilmu Pemerintahan Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dentistry Padjadjaran Journal of Dental Researchers and Students Makara Journal of Science

Nina Djustiana

Department of Dental Materials, Faculty of Dentistry, Universitas Padjajaran, Bandung 40132, Jawa Barat

Author-ID : 255276

Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences

Published : 17 Documents Claim Missing Document

Claim Missing Document

Articles

1 2

Description of palatal rugae size and direction in children with gender difference Nur, Muhammad Arfianto; Djustiana, Nina; Malinda, Yuti
Padjadjaran Journal of Dentistry Vol 30, No 1 (2018): March 2018
Publisher : Universitas Padjadjaran

Introduction: Indonesia has a high number of children victims of disaster in the last five years, but the children do not have identity cards, causing difficulties in the identification process. Palatal rugae are considered unique in individuals, and their morphology remains stable throughout life. Data of palatal rugae pattern in children aimed to facilitate the process of identification of the child's gender. The purpose of this research was to discover the description of palatal rugae in children which can be used as a reference of gender identification in children. Method: A descriptive research design was performed with purposive sampling method. Samples were taken from 119 maxilla images consisted of 69 images of girls maxilla and 50 images of boys maxilla. The study was performed by taking individual maxilla images with intraoral mirror and observing towards the direction of the palatal rugae according to the Carrea classification, and the size of palatal rugae according the Lysell classification. Results: The type IV direction and secondary size of palatal rugae were found to be dominant on both sides of maxilla in boys and girls. Conclusion: Palatal rugae in boys and girls were having the same direction which was the type IV, and the size of secondary rugae was found to be dominant on both sides of the palate. Palatal rugae also proofed to be able to become the complementary method for determining unidentified gender in children.

Hardness evaluation of dental composites fabricated from the uniform size and well-distributed zirconia-alumina-silica fillers with sol-gel technique Hakim, Muhammad Lukman Nur; Faza, Yanwar; Hasratiningsih, Zulia; Djustiana, Nina; Sunendar, Bambang
Padjadjaran Journal of Dentistry Vol 30, No 2 (2018): July 2018
Publisher : Faculty of Dentistry Universitas Padjadjaran

Introduction: Several factor limits of services of dental composite have triggered further improvement. ZrO2-Al2O3-SiO2 system as filler of dental composite had been developed with sol-gel technique. Ultrasonic homogeniser were reported to change the particle size ditribution or shape. Unifom size and distribution of particle is believed to help define the behavior of hardness properties. Methods: The study was an laboratory experimental design. Filler ZrO2-Al2O3-SiO2 system were developed via sol-gel methods. Post calcination process, filler were immerse in ethanol and applied with ultrasonic homogeniser, with various amplitude i.e 50 rpm, 60 rpm and 80 rpm then named sample A, B, and C. XRD, SEM anda PSA were used to characterize of filler system. Subsequent filler were used to fabricate dental composite then evaluate the hardness value using micro-hardness tester. One–way ANOVA was used to analysis the statistical result of hardness value. Results: XRD pattern of three sample were similar in which tetragonal zirconia was prominent (57-61 %) followed by monoclinic zirconia (24-25%) and amorphous (15-17 %). While, SEM and PSA characterization showed amplitude 50 rpm (sample A) produce more uniform size and well-distributed particle filler than the others. In contrary, sample B and C showed higher peak in PSA results. It means there was dominating of filler with particular size. However, the hardness value did not show significant differences between those filler (p>0,05). Conclusion: Dental composite that contain of different uniformity and distribution of filler ZrO2-Al2O3-SiO2 system has no significantly differences of hardness value.

Flexural properties of electrospun polymethyl methacrylate microfiber-reinforced BisGMA for dental post prefabrication Djustiana, Nina; Faza, Yanwar; Cahyanto, Arief
Padjadjaran Journal of Dentistry Vol 33, No 3 (2021): November
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no3.36255

Introduction: A dental post is a restoration to preserve the remaining tooth structure thus can be functioned normally. Many researchers suggested a fiber dental post due to its biomechanical properties that are similar to dentin structure. This study aims to analyse the flexural properties of electrospun polymethyl methacrylate microfiber-reinforced BisGMA for dental post prefabrication. Methods: The sample used was following the ADA guideline, as well as for the number of samples. The sample size was 25×2×2mm, which is close to the average dental post size. PMMA microfibers were prepared by dissolving heat cure PMMA powder with 99% acetone, then electrospinning with a rotary collector. Acquired PMMA microfibers were immersed into the resin matrix containing BisGMA, camphorquinone, and 2-dimethylaminoethyl methacrylate (DMAEMA) as a monomer, initiator, and co-initiator, respectively, to prepare the dental posts. Results: PMMA microfibers structure and surface fracture of dental posts were confirmed by Scanning Electron Microscopy (SEM). PMMA microfibers show unaligned fiber morphology with an approximate diameter size of 1-5 µm. A universal testing machine was used to measure the dental post's flexural properties (flexural strength and flexural modulus). Dental posts with PMMA fibers showed higher flexural strength (83.5 ± 10.7 MPa) compared to the dental post without PMMA fibers (61.7 ± 3.03 MPa) with a p-value <0.05. On the other hand, PMMA fibers' addition did not significantly increase the dental post's flexural modulus. Conclusion: The PMMA microfibers can intimately adhere to the BisGMA mixture as the resin matrix. Therefore, the PMMA microfiber significantly improves the flexural strength of the BisGMA for dental post prefabrication.

Comparison of brittleness and flowability between Cipetir Gutta-Percha and commercial Gutta-Percha Usri, Kosterman; Faza, Yanwar; Sanjaya, Arya; Viona, Nona; Djustiana, Nina; Karlina, Elin; Febrida, Renny; Cahyanto, Arief
Padjadjaran Journal of Dentistry Vol 34, No 1 (2022): March
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol34no1.38869

Introduction: Gutta-Percha (GP) is a standard endodontic filling material found in pure form in the Cipetir area, Indonesia. However, a study comparing physical properties (brittleness and flowability) between pure GP and commercially used GP has not been found. Therefore, this study aims to test the brittleness and flowability of Cipetir GP compared to commercial GP. Methods: This study was quasi-experimental. Forty samples were prepared for each material and test, according to ANSI/ADA specification-GP cones-no 78 in 2006. The first step began by making a sample of Cipetir GP using moulds from a cuvette, commercial GP (Inline #80), and gypsum stone. The second step was to test the brittleness (Crease Recovery Tester) and flowability (according to ADA No. 78 of 2000) of Cipetir GP and commercial GP. Results: The brittleness test of Cipetir GP showed unbroken samples, and the commercial GP showed four broken samples. The Fisher's Exact test showed a p-value of 0.087, which means there was no significant difference in brittleness between Cipetir GP and commercial GP. At the same time, the average value of flowability of Cipetir GP and commercial GP were 6.46 mm and 0.19 mm, respectively. The unpaired t-test showed a p-value<0.05, which means there was a significant difference in the flowability between Cipetir GP and commercial GP. Conclusions: There is a brittleness similarity between Cipetir GP and commercial GP, while the flowability value of Cipetir GP is higher than commercial GP. Those initial findings showed that the Cipetir GP might become an excellent candidate to be an alternative endodontic filling.

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

The comparison of surface hardness between thermoplastic nylon resin and heat-cured acrylic resin Utami, Marina; Febrida, Renny; Djustiana, Nina
Padjadjaran Journal of Dentistry Vol 21, No 3 (2009): November 2009
Publisher : Universitas Padjadjaran

The surface hardness level of a denture base material is related to the resistance to abrasion, scratch, polishing and water sorption. Nowadays, thermoplastic nylon resins and heat-cured acrylic resins are used as denture base materials. Denture base must be immersed in water to maintain its humidity. The objective of this research was to compare the surface hardness level between thermoplastic nylon resins and heat-cured acrylic resins. Materials used for the research were thermoplastic nylon resins from Valplast and heat-cured acrylic resins QC-20, with a sample size of 64x(10±0.03)x(2.5±0.03) mm. Surface hardness is measured with Vickers Microhardness Tester and the data were analyzed by ANOVA method. The results showed that comparison ratio of surface hardness level between thermoplastic nylon resins and heat-cured acrylic resins before immersion is 3.2:7.3 VHN respectively, while the comparison value of both resins after immersion is 2.8:6.6 VHN. In conclusion, the surface hardness level of thermoplastic nylon resins is lower compared to heat-cured acrylic resins. This result is due to thermoplastic nylon resin’s higher porosity, its different polymer chains, and the plasticizers effect after immersion in water.

Tissue reaction against implantation of nanocomposite and giomers Vilvarajah, Anusha S; Djustiana, Nina; Widyaputra, S. Sunardhi
Padjadjaran Journal of Dentistry Vol 23, No 1 (2011): March 2011
Publisher : Universitas Padjadjaran

Dentistry today has inherited technological advancement from other Dental Material sciences, examples are Nanocomposite and Giomers. Nanocomposites and Giomers are common materials used in Dentistry. But what are the implications when these materials are used in practice? The aim for this the study shows the analysis of tissue reaction due to implantation of Nanocomposite and Giomers. The subcutaneous tissue of a mouse is substituted with the human gum tissues. In the experimental group, Nanocomposite and Giomers were implanted in the subcutaneous tissue abdomen region in mice. The slides were made from the surrounding of implantation for both experimental and control groups. The evaluation of the effects of the implant is done in a time interval. Evaluated time intervals are 24 hours, 7" day, 14th day, 21st day and 28th day respectively. The amounts of inflammatory cells formation in both groups were compared.Once the results of the inflammatory cells are evaluated in the given time interval for Nanocomposite, Giomer, and control group then they are statistically analyzed. The statistics used in the experiments is Mann-Whitney and Wilcoxon. The conclusion of this research showed that statistically significant differences on lymphocytes value between treatment and control group.

Co-Authors Amida, Aya Antik Bintari Anusha S Vilvarajah, Anusha S Asri, Lia Amelia Tresna Wulan Ayu Trisna Hayati, Ayu Trisna Bambang Sunendar Cahyanto, Arief Dudi Aripin Elin Karlina Fourier Dzar Eljabbar Latief Hadi, Bambang Kismono Hakim, Muhammad Lukman Nur Hakim, Muhammad Lukman Nur Hardiansyah, Andri I Made Joni Kosterman Usri, Kosterman Mardhian, Deby Fajar Marina Utami, Marina Marry Siti Mariam Nur, Muhammad Arfianto Nur, Muhammad Arfianto Renny Febrida S. Sunardhi Widyaputra, S. Sunardhi Sanjaya, Arya Sri Tjahajawati, Sri Sukotjo, Cortino Sunardhi Widyaputra Susra, Silmina Veni Takarini Viona, Nona Wijaya, Dissa Kirana Yanwar Faza Yohannes, Gabriel Yuti Malinda Zulia Hasratiningsih, Zulia

Title

Found 17 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 17 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 17 Documents
Search