Yongki Hadinata Wijaya
Department Of Conservative Dentistry, Faculty Of Dentistry, Universitas Hang Tuah

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Analisis perbedaan radiopasitas antara sealer berbahan dasar resin epoksi, mineral trioxide aggregate (MTA), dan biokeramik dengan menggunakan densitometer pada radiografi periapikalAnalysis of radiopacity differences between sealers based on epoxy resin, mineral trioxide aggregate (MTA), and bioceramics on periapical radiographs using a densitometer Ghaisani Khansa; Sarianoferni Sarianoferni; Yongki Hadinata Wijaya
Jurnal Kedokteran Gigi Universitas Padjadjaran Vol 33, No 2 (2021): Agustus 2021
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jkg.v33i2.33154

Abstract

Pendahuluan: Bahan pengisi saluran akar yang digunakan hingga saat ini adalah gutta percha yang dalam aplikasinya harus dikombinasikan dengan sealer saluran akar. Sealer yang baik harus memiliki skala radiopasitas yang tinggi sehingga dapat dibedakan densitasnya dengan jaringan disekitarnya, tujuannya supaya sealer dapat diidentifikasi maupun di monitor bila terjadi kerusakan pada gigi setelah dilakukan perawatan. Tujuan penelitian ini menganalisis perbedaan radiopasitas antara sealer berbahan dasar resin epoksi, sealer berbahan MTA, dan sealer berbahan dasar biokeramik pada teknik radiografi periapikal dengan menggunakan densitometer. Metode: Jenis penelitian observasional analitik dengan pendekatan cross sectional. Dua puluh tujuh sampel penelitian dibagi menjadi tiga kelompok. Kelompok I sealer berbahan dasar resin epoksi. Kelompok II sealer berbahan dasar MTA. Kelompok III sealer berbahan dasar biokeramik. Ketiga kelompok dimasukkan ke dalam cincin plastik berukuran 10 x 1 mm, kemudian dilakukan pengambilan gambar dengan teknik radiografi periapikal digital menggunakan dental x-ray yang beroperasi di 70 KVp dan 8 mA dengan jarak fokus ke jarak 30 cm dan eksposur distandarisasi untuk 0,25 detik. Pengamatan dilakukan dengan menggunakan densitometer, data yang dihasilkan kemudian dianalisis menggunakan uji One Way ANOVA. Hasil: Hasil penelitian menunjukan bahwa dari ketiga kelompok terdapat perbedaan radiopasitas secara signifikan (p<0,05). Sealer berbahan dasar resin epoksi (12,9 mmAl) secara signifikan lebih radiopak daripada sealer berbahan dasar biokeramik (8,04 mmAl) dan sealer berbahan dasar MTA (6,90 mmAl). Radiopasitas dipengaruhi oleh komposisi bahan kimia, media kontras anorganik, nomor atom, komposisi radiopacifier dan densitas pada sealer. Simpulan: Sealer berbahan dasar resin epoksi memiliki radiopasitas tertinggi dibandingkan dengan yang berbahan dasar MTA dan biokeramik. ABSTRACTIntroduction: Nowadays, gutta-percha is widely used as the root canal filling material. However, in its application, it must be combined with a root canal sealer. A good sealer must have a high radiopacity scale value to distinguish its density from the surrounding tissue. In addition, the sealer must be able to be identified and monitored concerning the damage to the teeth after treatment. The purpose of this study was to analyse the radiopacity differences between sealers based on epoxy resin, mineral trioxide aggregate (MTA), and bioceramics on periapical radiographs using a densitometer. Methods: This research was analytic observational with a cross-sectional method. Twenty-seven study samples were divided into three groups. Group I consisted of an epoxy resin-based resin. Group II consisted of an MTA-based sealer. Group III consisted of a bioceramic-based sealer. The three groups were put in a 10 x 1 mm plastic ring. The radiographic images were taken using digital periapical radiography using dental x-rays operating at 70 KVp and 8 mA with a focal distance of 30 cm and exposure standardised to 0.25 seconds. Observations were performed using a densitometer, and the resulting data were then analysed using the One-Way ANOVA test. Results: The results showed that there was a significant difference in radiopacity (p<0.05). Epoxy resin-based sealers (12.9 mmAl) were significantly more radiopaque than bioceramic-based sealers (8.04 mmAl) and MTA-based sealers (6.90 mmAl). Radiopacity is influenced by chemical composition, inorganic contrast medium, atomic number, radiopacifier composition and sealer density. Conclusions: Epoxy resin-based sealers have the highest radiopacity compared to MTA and bioceramic-based sealers.
The Comparison of Microleakage between Bioactive Composite Resin and Compomer Fani Pangabdian; Yongki Hadinata Wijaya; Dwi Acti Widyanita
Denta Journal Kedokteran Gigi Vol 15 No 2 (2021): Agustus
Publisher : Fakultas Kedokteran Gigi Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/denta.v15i2.5

Abstract

Background: The ideal restoration material should have endurance, compatible with tooth structure and visible surrounding tissues and must be able to restore the lost tissue. There are various restoration materials such as Compomer and Bioactive Composite Resin. Microleakage is one of the failure in surface sealent, and this may increase the risk of secondary caries. Purpose: The aim of this study was to prove and compare the differences of microleakage between Compomer and Bioactive Composite Resin in class I restoration. Material and Method: Maxilla’s first premolar teeth with class I cavities (diameter: 3mm, depth: 3mm) divided into two groups with 10 samples each group. Group I: Compomer (Dentsply), Group II: Bioactive Composite Resin (Activa Pulpdent USA). All group were immersed in 1% methylene blue solution for 24 hours, rinsed in running water, and section mesial-distal using carborundum disc. Afterward, section were assessed for dye penetration that represent the mickroleakage using scoring method under digital microscope. Finally data were collected and statistically analyzed. Result: There were significant differences between each group (p<0.05). Microleakage in restoration with Bioactive Composite Resin (1.7) shows smaller values than Compomer restoration (4.4). Conclusion: This research show that there is differentiation of microleakage between Compomer and Bioactive Composite Resin. In Bioactive Composite Resin found the smallest microleakage.
Sitotoksisitas komposit serat selulosa sabut kelapa sebagai kandidat novelty basis pada material kedokteran gigi: studi eksperimental Twi agnita cevanti; Diana Soesilo; Fani Pangabdian; Yongki Hadinata Wijaya; Sinta Puspita; Ghita Hadi Hollanda
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.v7i2.46092

Abstract

ABSTRAKPendahuluan: Teknologi Fiber-reinforced composite (FRC) sedang dikembangkan sebagai bahan inovatif dalam kedokteran gigi. Menipisnya sumber daya fosil merupakan masalah kritis untuk resin komposit serat saat ini. Sabut kelapa Cocos nucifera L.(coir) memiliki potensi tinggi untuk menggantikan bahan penguat serat sintetis sebagai bahan baru yang akan dikembangkan. Tujuan penelitian mengetahui toksisitas komposit serat selulosa coir sebagai material basis. Metode: Jenis penelitian eksperimental post-test only control group. Selulosa dari coir disintesis menggunakan organosolvent, di bleaching dengan peroxide dalam larutan alkali, serta di nukleasi dengan etanol absolut. Dilakukan uji viabilitas sel fibroblas GT1 untuk serat selulosa kemudian pembuatan komposit selulosa coir dengan fraksi berat 70% filler serat selulosa, dan 30% matriks BisGMA, TEGDMA dan DGEBA. Selanjutnya komposit selulosa coir dilakukan uji toksisitas dari hasil rendaman komposit pada saliva buatan selama 7,14, dan 21 hari menggunakan sel fibroblas BHK-21. Hasil: Hasil uji Post Hoc LSD memberikan kesimpulan bahwa kelompok P-21 didapatkan perbedaan yang signifikan antara kelompok perlakuan K.Sel, P-7, P-14 dengan nilai p<0,05. Dosis paling aman serat selulosa coir sebesar 12,5mg/ml; hasil uji Kruskal-wallis dari lama perendaman komposit terdapat perbedaan yang bermakna antar kelompok dengan nilai signifikansi p<0,05 (p=0,001). Simpulan: Serat selulosa coir tidak toksik sehingga dapat menjadi filler komposit sebagai salah satu prasyarat untuk menjadi kandidat novelty basis pada material komposit kedokteran gigi.KATA KUNCI: coir, komposit, toksistas, basis kedokteran gigiCytotoxicity of cellulose fiber from coconut coir as a novelty base candidate on dental materials: experimental studyABSTRACTIntroduction: Fiber-reinforced composite (FRC) technology is being developed as an innovative material in dentistry. The depletion of fossil resources is a critical issue for current fiber composite resins. Cocos nucifera L. coconut fiber (coir) has high potential to replace synthetic fiber reinforcement as a new material to be developed. The aim of the study was to determine the toxicity of coir cellulose fiber composites as a base material. Methods: This was a post-test only control group experimental study. Cellulose from coir was synthesized using organosolvent, bleached with peroxide in alkaline solution, and nucleated with absolute ethanol. GT1 fibroblast cell viability test was conducted for cellulose fibers and then coir cellulose composites were made with a weight fraction of 70% cellulose fiber filler, and 30% BisGMA, TEGDMA and DGEBA matrix. Furthermore, cellulose coir composites were tested for toxicity from the results of composite immersion in artificial saliva for 7, 14, and 21 days using BHK-21 fibroblast cells. Results: The results of the Post Hoc LSD test concluded that the P-21 group had a significant difference between the K.Sel, P-7, P-14 treatment groups with a value of p<0.05.The safest dose of coir cellulose fiber is 12.5mg/ml; the results of the Kruskal-wallis test of the composite soaking time have significant differences between groups with a significance value of p<0.05 (p=0.001). Conclusion: Coir cellulose fiber is non-toxic so it can be a composite filler as one of the prerequisites to be a novelty base candidate in dental composite materials.KEY WORDS: coir, composite, toxicity, dental base
The effect of low viscous coir fiber resin composite immersion time on composition dissolution Yongki Hadinata Wijaya; Twi Agnita Cevanti; Diana Soesilo; Linda Rochyani
Odonto : Dental Journal Vol 10, No 1 (2023): July 2023
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.10.1.82-89

Abstract

Background: E glass fiber dental is a fiber that is often used in dentistry. The availability of E glass fiber in Indonesia is still very limited. Various types of non-dental glass fiber materials are found in the market as engineering materials with relatively cheap prices so that they are expected to be used as an alternative to E glass fiber dental, which one of is coconut fiber. The composition of non-dental glass fiber is almost the same as that of dental E glass fiber. The composition affects the mechanical properties and chemical properties of the fiber. Glass fiber compositions such as Na2O and K2O will increase water resistance. Method: This study was conducted using a post test only control group design. The material used in this study was a composite of coconut coir fiber. The subjects of the coco fiber composite were divided into 4 groups for solubility test based on ISO 4049. The results obtained were analyzed using one-way ANOVA (p = 0.000). The results showed the lowest mean component solubility (%) was in the coconut fiber composite group A (0.476±0.03) and the highest yield was in the coco coir fiber composite D (0.6±0.01). Results: The results of the one-way ANOVA test showed a significant difference in the coco fiber composite in the solubility of the components (p