Dian Noviyanti Agus Imam
Jenderal Soedirman University

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PENGARUH PREHEATING DAN HEAT TREATMENT TERHADAP KEKUATAN KOMPRESI RESIN KOMPOSIT NANOHIBRIDA Agus Imam, Dian Noviyanti; Dwiandhono, Irfan; Kurniawan, Aris Aji
E-Prodenta Journal of Dentistry Vol 4, No 2 (2020)
Publisher : Fakultas Kedokteran Gigi UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.eprodenta.2020.004.02.4

Abstract

Latar Belakang : Resin komposit nanohibrida merupakan bahan restorasi gigi yang dikembangkan untuk memperoleh sifat fisik dan mekanik yang lebih baik. Polimerisasi material tersebut akan menyisakan sejumlah monomer yang tidak bereaksi. Peningkatan jumlah monomer yang tidak bereaksi dapat menurunkan kekuatan mekanik bahan restorasi gigi. Tujuan : Untuk mengetahui pengaruh preheating dan heat treatment terhadap kekuatan kompresi resin komposit nanohibrida. Metode : Eksperimental murni dengan rancangan penelitian post test only control group design. Empat puluh delapan sampel resin komposit berbentuk silinder dengan diameter 5 mm dan tebal 2 mm dibagi menjadi 6 kelompok yaitu, kelompok preheating 37ºC, 60ºC, kelompok heat treatment 120ºC, 170ºC, kelompok kontrol negatif dan kontrol positif. Seluruh kelompok dilakukan uji kekuatan kompresi menggunakan Universal Testing Machine. Hasil : uji one way ANOVA menunjukkan perbedaan yang signifikan dengan nilai p>0,05 (0,000) pada sebagian besar kelompok hasil. Kesimpulan : penelitian ini adalah kelompok heat treatment dengan suhu 170ºC memiliki nilai kekuatan kompresi tertinggi, sedangkan nilai yang paling rendah adalah kelompok kontrol negatif.
Penambahan Nanoselulosa Sekam Padi (Oryza Sativa L) Terhadap Kekuatan Fleksural Basis Gigitiruan Resin Akrilik Polimerisasi Panas Riyadi, Wisnu; Purwasasmita, Bambang Sunendar; Imam, Dian Noviyanti Agus
E-Prodenta Journal of Dentistry Vol 4, No 2 (2020)
Publisher : Fakultas Kedokteran Gigi UB

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Latar Belakang : Basis gigitiruan berfungsi untuk tempat anasir gigi dan sebagai pengganti tulang alveolar yang hilang. Resin akrilik polimerisasi panas merupakan bahan basis gigitiruan yang sering digunakan. Penambahan bahan alam pada bahan resin digunakan untuk memperbaiki kekuatan fleksuralnya, seperti nanoselulosa sekam padi. Tujuan : untuk mengetahui kekuatan fleksural dan karakteristik morfologi permukaan dari basis gigitiruan resin akrilik polimerisasi panas yang ditambahkan nanoselulosa sekam padi (Oryza sativa L). Metode : Penelitian eksperimental laboratoris murni dengan post test only control group design. Sampel terdiri dari empat puluh delapan sampel yang dibagi 6 kelompok, yaitu resin akrilik polimerisasi panas yang ditambahkan nanoselulosa 1%, 2%, 3%, 4%, 5%, dan resin akrilik polimerisasi panas tanpa penambahan nanoselulosa. Uji kekuatan fleksural dilakukan menggunakan metode three point bending dan pengamatan karakteristik permukaan dilakukan menggunakan SEM. Hasil : Kelompok resin akrilik dengan penambahan nanoselulosa 5% memiliki kekuatan fleksural tertinggi (79,62 MPa), sedangkan kelompok resin akrilik tanpa penambahan nanoselulosa memiliki kekuaran fleksural terendah (60,55 MPa). Terdapat perbedaan bermakna hasil uji kekuatan fleksural masing-masing kelompok perlakuan dan kontrol (p<0,05). Hasil uji SEM pada setiap kelompok sudah menunjukkan gambaran yang homogen namun masih memiliki sedikit aglomerasi dan porositas. Kesimpulan : nanoselulosa sekam padi dapat meningkatkan kekuatan fleksural basis gigitiruan resin akrilik polimerisasi panas.  Katakunci : Nanoselulosa, kekuatan fleksural, gigituran, resin akrilik polimerisasi panas, sekam padi.
Pengaruh Komposisi Glass Fiber Non Dental dan Penambahan Silane terhadap Kekuatan Geser Fiber Reinforced Composite sebagai Retainer Ortodonsi Dian Noviyanti Agus Imam; Siti Sunarintyas; Nuryono Nuryono
Majalah Kedokteran Gigi Indonesia Vol 1, No 1 (2015): August
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.437 KB) | DOI: 10.22146/majkedgiind.8966

Abstract

Retainer dibutuhkan untuk membantu menstabilkan posisi gigi geligi selama proses reorganisasi jaringan periodontal berlangsung. Retainer FRC ortodonsi dikembangkan sebagai alternatif material estetika serta aman bagi pasien alergi terhadap nikel. E-glass fiber lebih sering digunakan sebagai retainer ortodonsi. Penelitian ini bertujuan untuk mengkaji pengaruh komposisi glass fiber non dental dan penambahan silane terhadap kekuatan geser FRC sebagai retainer ortodonsi. Subjek penelitian terdiri dari 9 kelompok perlakuan dengan 3 jenis glass fiber yang berbeda yaitu glass fiber non dental A (LT, Cina), B (CMAX, Cina) dan C (HJ, Cina). Masing-masing glass fiber diberi perlakuan yang bervariasi yaitu tanpa penambahan silane, penambahan silane 1x dan 2x. Subjek penelitian direndam dalam akuades dan disimpan pada suhu 37ºC selama 24 jam sebelum dilakukan uji kekuatan geser dengan menggunakan alat Universal Testing Machine. Hasil penelitian dianalisis variansi dua jalur dan post hoc Tukey untuk mengetahui perbedaan statistik masing-masing kelompok. Hasil penelitian menunjukkan bahwa glass fiber non dental A dengan penambahan 2x silane memiliki rerata kekuatan geser tertinggi (12,72±2,02 MPa) sedangkan glass fiber non dental B tanpa penambahan silane memiliki rerata kekuatan geser terendah (6,96±1,69 MPa). Terdapat perbedaan bermakna antara komposisi fiber maupun penambahan silane terhadap kekuatan geser FRC (p<0,05). Tidak terdapat perbedaan bermakna pada letak kegagalan FRC (p>0,05). Berdasarkan hasil penelitian dapat disimpulkan bahwa komposisi SiO2 dan Al2O3 yang tinggi pada glass fiber non dental serta penambahan silane dapat meningkatkan kekuatan geser FRC. The Effect of Non Dental Glass Fiber Composition and Silane Addition on The Shear Bond Strength of Fiber Reinforced Composite as An Orthodontic Retainer. Retainers are required to stabilize the position of the teeth to permit reorganization of periodontal tissue. FRC orthodontic retainer was developed as an alternative material aesthetic and safe for nickel allergic patients. E-glass fiber is commonly used as an orthodontic retainer. The purpose of this study was to assess the effect of non dental glass fiber composition and silanes addition on the shear bond strength of the FRC as an orthodontic retainer. This study consisted of 9 treatment groups with three different types of non dental glass fiber, namely non dental glass fiber A (LT, China), B (CMAX, China) and C (HJ, China). Each glass fiber was given a variation treatment, without silanes, one time and two times of silanes addition. All the samples were stored in distilled water at 37ºC for 24 hours and subsequently tested for shear strength by using Universal Testing Machine.The groups were submitted to two way ANOVA analysis of variance with Tukey post test to verify the statictical difference between groups. The results showed that a non dental glass fiber A with two times of silanes addition has the highest shear bond strength (12,72±2,02 MPa), meanwhile a non dental glass fiber B without silane addition has the lowest shear bond strength (6,96±1,69 MPa). There were significant differences between the composition of glass fiber and the addition of silane toward the shear bond strength of FRC (p<0,05). No significant differences in debonded locations of FRC (p>0,05). Based on the results of this study concluded that the composition of the high SiO2 and Al2O3 in the non dental glass fiber  and the silanes addition can increase the shear bond strength FRC.
Differences in surface roughness of enamel after whey-extract application and CPP-ACP in post extracoronal-tooth bleaching Afiatul Mukarromah; Irfan Dwiandhono; Dian Noviyanti Agus Imam
Majalah Kedokteran Gigi Indonesia Vol 4, No 1 (2018): April
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.542 KB) | DOI: 10.22146/majkedgiind.26859

Abstract

Demineralization is a process of partial or full tooth mineral loss which caused by acidic environment, for example the side effect of extracoronal bleaching treatment. Demineralization increases enamel surface roughness which leads plaque accumulation. Whey extract and calcium phosphopeptide-amorphous calcium phophate (CPP-ACP) contain calcium and phosphate that can stop the demineralization through remineralization process. This study aimed to determine the differences of enamel surface roughness after whey extract and CPP-ACP application post- extracoronal bleaching. Experimental laboratory with pre- and post-test control group design was performed on 24 first maxillary premolars which devided into 3 groups. On group I, specimens were immersed in artificial saliva. Specimens in group II were immersed in whey extract meanwhile specimens were immersed in CPP-ACP on group III. Whey extract and CPP-ACP immersions were conducted 10 minutes every 12 hours for 15 days. The enamel surface roughness test was performed twice, after extracoronal bleaching treatment and after 15 days remineralization agent application. This study result indicated significant differences between group I and group II and between group I and group III (p<0.05), but there was no significant difference between group II and group III (p>0.05). This study showed whey extract decreased more enamel surface roughness than CPP-ACP but the difference was not significant statistically. So, whey extract and CPP-ACP showed similar remineralization potential.
Applications of Whey Extract and Cpp-Acp in Email Surface Towards Enamel Surface Hardness After Extracoronal Bleaching Irfan Dwiandhono; Dian Noviyanti Agus Imam; Afiatul Mukaromah
Jurnal Kesehatan Gigi Vol 6, No 2 (2019): Desember 2019
Publisher : Jurusan Keperawatan Gigi, Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jkg.v6i2.5481

Abstract

Teeth have an aesthetic value because teeth which are clean, neat and white can increase self confidence. Staining or dental discoloration can disrupt the appearance and cause discomfort. The most common type of discoloration is extrinsic discoloration. Treatment that can be done to overcome extrinsic discoloration is extracoronal bleaching. One way to avoid the extracoronal bleaching side effects is application of remineralization materials. The recommended remineralization materials for post-bleaching are fluoride and phospho peptide-amorphous calcium phosphate (CPP-ACP). This research aims to know the effect of whey extract application and CPP-ACP on tooth enamel hardness after extracoronal bleaching. Experimental laboratory with pre- and post-test control design was performed on 24 first maxillary premolar which devided into 3 groups. On group I, specimens were immersed in artificial saliva. Specimen in group II were immersed in whey extract meanwhile specimens were immersed in CPP-ACP on group III. Whey extract and CPP-ACP immersions were conducted 10 minutes every 12 hours for 15 days. The enamel surface roughness test was performed twice, after extracoronal bleaching treatment and after 15 days remineralization agent application. This study result indicated significant differences between group I and group II and group III (p0,05), but there was no significant difference between group II and group III (p0,05). This study showed the enamel surface hardness after whey extract application is higher than CPP-ACP but difference was not significant statistically
Laporan Kasus: Xerostomia pada Penderita Diabetes Mellitus Tipe 2 Aris Aji Kurniawan; Meitika Wahyu Wedhawati; Maulina Triani; Dian Noviyanti Agus Imam; Anindita Laksitasari
STOMATOGNATIC - Jurnal Kedokteran Gigi Vol 17 No 1 (2020)
Publisher : Fakultas Kedokteran Gigi Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/stoma.v17i1.23615

Abstract

Diabetes mellitus (DM) is a multifactorial disease that usually caused by disorders of the endocrine system and marked by an increase in blood glucose levels. Diabetes Melitus can cause changes in oral conditions such as xerostomia. The aim of this journal is to report case of xerostomia in DM Tipe II patient who consume Metformin routinely. A 47 years old female patient presented dry mouth and chapped lips. The patient diagnosed with xerostomia. The treatment given to patient is dental health education to maintain oral hygiene, routine dental checks up and consumption of xylitol gum.
Perbedaan Kekuatan Fleksural Plat Ortodonti Resin Akrilik Self-Cure dengan Modifikasi Motif Bulat dan Persegi Nadya Ayustia; Setiadi Warata Logamarta; Dian Noviyanti Agus Imam
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.v9i1.457

Abstract

Orthodontic baseplate generally don’t have any motive. However, these baseplate has a less attractive esthetic value especially for the treatment of children and teenagers. Orthodontic baseplate that modified by motive are currently being developed to motivate the patient to be more cooperative in using these appliance so it can increase the success of the treatment. Motive that generally applied were round and square. Aim, to analyze the flexural strength difference of self-cure acrylic resin orthodontic baseplate with spray-on method with or without modified by round and square motive. 27 plates (n=9) of self-cured acrylic resin with size 65x10x2,5 mm were divided into 3 groups. Group I (orthodontic baseplate modified by round motive), group II (orthodontic baseplate modified by square motive), and group III (orthodontic baseplate without giving any motive) as control group. Flexural strength test was carried out using Universal Testing Machine. Mean value of all groups were 46,06 MPa (Group I), 35,59 MPa (Grup II), and 77,11 MPa (Group III). Data analyzed using One-Way ANOVA and Post-Hoc LSD. Results, there were significant differences in the flexural strength among all groups (p<0,05). Conclusion, modification by giving round and square motive can decrease the flexural strength of self-cure acrylic resin orthodontic baseplate. Orthodontic baseplate modified by round motive was far superior than square motive.
SINTESIS DAN KARAKTERISASI NANOSELULOSA SEKAM PADI SEBAGAI BAHAN PENGUAT MATERIAL KEDOKTERAN GIGI Agus Imam, Dian Noviyanti; Ryana Budi Purnama; Bambang Sunendar Purwasasmita
E-Prodenta Journal of Dentistry Vol 7 No 2 (2023)
Publisher : Fakultas Kedokteran Gigi UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.eprodenta.2023.007.02.2

Abstract

Latar belakang: Tanaman padi merupakan tanaman pangan pokok yang banyak tumbuh di Indonesia. Limbah pertanian seperti sekam padi dapat dimanfaatkan untuk mendapatkan selulosa. Selulosa berukuran nano atau yang disebut nanoselulosa memiliki beberapa keunggulan diantaranya berskala nano, high surface area dan sifat optis yang baik sehingga partikel nanoselulosa dapat berpotensi digunakan sebagai penguat polimer dan aditif produk yang biodegradabel. Tujuan: untuk mensintesis dan mengkarakterisasi nanoselulosa berbahan sekam padi dengan menggunakan Fourier Transform Infrared (FTIR) dan Transmission Electron Microscopy (TEM). Metode: eksperimental kualitatif. Sampel penelitian berupa gel hasil sintesis nanoselulosa berbahan sekam padi yang diuji dengan menggunakan Transmission Electron Microscopy (TEM) untuk melihat morfologi mikrostruktur dan serbuk nanoselulosa diuji menggunakan Fourier Transform Infrared (FTIR) untuk melihat gugus fungsi yang terkandung dalam nanoselulosa sekam padi. Hasil: Hasil karakterisasi menggunakan Fourier Transform Infrared (FTIR) menunjukkan terbentuk selulosa dari olahan sekam padi, sedangkan hasil Transmission Electron Microscope (TEM) menunjukkan ukuran partikel selulosa dalam skala nanometer dan morfologi partikel yang berbentuk nano-whisker. Kesimpulan: Sintesis nanoselulosa berbahan sekam padi dengan metode hidrolisis asam berhasil dilakukan dan diharapkan mampu memberikan potensi untuk meningkatkan sifat mekanis material kedokteran gigi.
ADDITION OF RICE HUSK NANOCELLULOSE TO THE IMPACT STRENGTH OF RESIN BASE HEAT CURED Hasran, Muhammad Aditya Ramadhan; Imam, Dian Noviyanti Agus; Sunendar, Bambang
Journal of Vocational Health Studies Vol. 4 No. 3 (2021): March 2021 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V4.I3.2021.119-124

Abstract

Background: One of the materials for denture bases is heat-cured acrylic resin (PMMA). This material still lacks impact strength as a mechanical strength property. The addition of reinforcing material is known to increase the mechanical strength of PMMA. One of the reinforcing materials added to PMMA is nano cellulose from rice husks, one of the wastes from agricultural products. Purpose: This study aims to determine rice husk nano cellulose's addition to the PMMA denture base's impact strength. Method:  The research sample consisted of six groups, each group consisting of 8 samples selected by simple random. The PI, P2, P3, P4, P5, and K groups were PMMA with 1%, 2%, 3%, 4%, 5% nano cellulose, and without nano cellulose. Result: Mean impact strength test results were 41.50 x 10-3 ± 3.891 J / mm2 for P1, 44.13 x 10-3 ± 3,980 J / mm2 for P2, 45.63 x 10-3 ± 4,438 J / mm2 for P3, 46.87 x 10-3 ± 4,824 J / mm2 for P4, 49.12 x 10-3 ± 4.016 J / mm2 for P5 and 36.25 x 10-3 ± 1.982 J / mm2 for K. One way Anova test results with p-value of 0.000 indicates differences in the six groups (p<0.05). Conclusion: This study concludes that the impact strength value of PMMA with the addition of rice husk nano cellulose has increased compared to the control group without the addition of rice husk nano cellulose.
PEMERIKSAAN KOMPOSISI GLASS FIBER KOMERSIAL DENGAN TEKNIK X-RAY FLUORESCENCE SPECTROMETER (XRF) Sari, Widya Puspita; Sumantri, Dedi; Imam, Dian Noviyanti Agus; Sunarintyas, Siti
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Volume 1, Nomor 2, Desember 2014
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.551 KB) | DOI: 10.33854/JBDjbd.30

Abstract

Glass fiber lebih sering digunakan daripada polyethylene fiber sebagai komponen FRC dalam dunia kedokteran gigi. Glass fiber dental di Indonesia tersedia dalam jumlah terbatas dan memiliki harga yang relatif mahal. Tujuan dari penelitian ini adalah untuk memeriksa komposisi dari E-glass fiber dental dan glass fiber non dental menggunakan teknik XRF sehingga dapat ditentukan tipe dari masing-masing glass fiber non dental. Sampel terdiri dari 10 g E-glass fiber dental, 10 g fiberglass mats, 10 g fiberglass roving dan 10 g woven roving. Masing-masing sampel dihaluskan, selanjutnya dianalisa dengan dengan menggunakan X-Ray Fluorescence Spectrometer (XRF). Hasil analisa XRF sampel menunjukkan kandungan oksida terbesar pada E-glass fiber dental adalah SiO2 (45,47%), CaO (38,49%) dan Al2O3 (12,11%). Kandungan oksida terbesar pada fiberglass mats adalah SiO2 (56,88%), CaO (16,24%) dan Na2O (12,91%) demikian pula dengan woven roving yaitu SiO2 (55,86%), CaO (18,71%) dan Na2O (11,80%). Sedangkan fiberglass roving menunjukkan kandungan oksida terbesar antara lain SiO2 (52,56%), ZrO2 (14,64%) dan CaO (10,03%). Hal tersebut menunjukkan bahwa komposisi kandungan oksida pada sampel memiliki kemiripan dengan persentase yang berbeda. Berdasarkan pada analisis XRF disimpulkan bahwa glass fiber non dental jenis fiberglass mats dan woven roving mengarah ke tipe C-glass dan fiberglass roving mengarah ke tipe AR-glass.