Garuda - Garba Rujukan Digital

Effect Of Led Exposure Time On The Temperature Rise, Depth Of Cure And Microhardness Of Nanohybrid Composite Resin Nauli Komala, Olivia; Budianto, Ednanisa; Kusuma Eriwati, Yosi; Triaminingsih, Siti
Insisiva Dental Journal Vol 1, No 1 (2012)
Publisher : Insisiva Dental Journal

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

It has been reported that depth of cure of composite resin can beachieved by prolonged light curing but causing temperature rise that could harmthe pulp and resulted uncomfortable condition to patient. Objectives: To evaluatethe effect of light-emitting-diode (LED) light curing unit on the temperature rise,depth of cure and microhardness of nanohybrid composite resin. Materials andMethods: Sixty specimens of nanohybrid composite resin (Tetric N Ceram,Ivoclar-Vivadent, Lichtenstein) with diameter of 5 mm, thickness of 5 mm weredivided into 3 groups: Group I (n=20) were light-cured for 15 seconds, Group II(n=20) for 20 seconds, Group III (n=20) for 40 seconds using LED light curingunit (Hilux/Ledmax, Japan). The temperature rise was measured using digitalthermometer at initial time to the highest temperature peak. The depth of cure wasmeasured by scraping method. Microhardness was determined using VickersMicrohardness Tester at each 1 mm depth of the composite resin. Data wereanalyzed using Kruskal-Wallis and Mann-Whitney tests. Results: There weresignificant differences on temperature rise, depth of cure and hardness ofnanohybrid composite resin at each 1 mm depth after light exposure time of 15,20, and 40 seconds. The highest depth of cure was achieved after curing for 40seconds but the highest microhardness was achieved after curing for 20 seconds at1 mm from the top of specimens. Conclusion: Exposure time of 20 secondsproduced low temperature rise, depth of cure and the highest VHN than the otherexposure time.

PENGARUH KONSENTRASI FLUOR DAN pH PASTA GIGI TERHADAP PELEPASAN ION LOGAM DARI PERMUKAAN LOGAM PADUAN: EFFECT OF FLUORIDE CONCENTRATIONS AND pH OF TOOTH PASTE ON METAL IONS RELEASED FROM ALLOYS SURFACE Subhaini Jakfar; Poppy Andriany; Bambang Irawan; Siti Triaminingsih
Dentika: Dental Journal Vol. 15 No. 2 (2010): Dentika Dental Journal
Publisher : TALENTA

It was reported that fluoride in prophylactic agents can be detriment the oxide layers of CoCr and NiCr alloys used as dental restorations. The aim of this study was to determine the effect of fluoride concentration and pH of some commercial toothpastes in Indonesia on the ions released from CoCr and NiCr alloys surface. 120 specimens of CoCr and NiCr alloys were used in this study (60 specimens for each alloy). All specimens were mounted in resin with one side opened. Each alloy divided into 4 groups, there were 15 specimens immersed into 3 kinds of each commercial tooth paste solution (ratio 1:3) and aquabides as control solution for 1, 6, and 13 days duration,. The metal ions released into tooth paste solutions and aquabides were analyzed by AAS tool. The result of study showed that metal ions released into 3 kinds of commercial toothpastes solutions and aquabides were nickel ions from NiCr alloy only, and it was significant (p<0,05) for each aging duration. Lower pH showed higher influence to ion release than fluoride concentrations, and CoCr alloy had a better passive layer than NiCr alloy.

Effect Of Led Exposure Time On The Temperature Rise, Depth Of Cure And Microhardness Of Nanohybrid Composite Resin Nauli Komala, Olivia; Budianto, Ednanisa; Kusuma Eriwati, Yosi; Triaminingsih, Siti
Insisiva Dental Journal: Majalah Kedokteran Gigi Insisiva Vol 1, No 1 (2012)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/di.v1i1.510

It has been reported that depth of cure of composite resin can beachieved by prolonged light curing but causing temperature rise that could harmthe pulp and resulted uncomfortable condition to patient. Objectives: To evaluatethe effect of light-emitting-diode (LED) light curing unit on the temperature rise,depth of cure and microhardness of nanohybrid composite resin. Materials andMethods: Sixty specimens of nanohybrid composite resin (Tetric N Ceram,Ivoclar-Vivadent, Lichtenstein) with diameter of 5 mm, thickness of 5 mm weredivided into 3 groups: Group I (n=20) were light-cured for 15 seconds, Group II(n=20) for 20 seconds, Group III (n=20) for 40 seconds using LED light curingunit (Hilux/Ledmax, Japan). The temperature rise was measured using digitalthermometer at initial time to the highest temperature peak. The depth of cure wasmeasured by scraping method. Microhardness was determined using VickersMicrohardness Tester at each 1 mm depth of the composite resin. Data wereanalyzed using Kruskal-Wallis and Mann-Whitney tests. Results: There weresignificant differences on temperature rise, depth of cure and hardness ofnanohybrid composite resin at each 1 mm depth after light exposure time of 15,20, and 40 seconds. The highest depth of cure was achieved after curing for 40seconds but the highest microhardness was achieved after curing for 20 seconds at1 mm from the top of specimens. Conclusion: Exposure time of 20 secondsproduced low temperature rise, depth of cure and the highest VHN than the otherexposure time.

PROPERTIES OF COMPOSITE RESIN ALKASIT AND ZIRCONIA-REINFORCED GLASS-IONOMER CEMENT IN DIFFERENT STORAGE Clarinda Vinindya; Cynthia Pratiwi; Yosi Kusuma Eriwati; Siti Triaminingsih; Decky J Indrani
ODONTO : Dental Journal Vol 7, No 1 (2020): July 2020
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.7.1.40-47

Background: The temperature and salivary pH in a person's mouth are highly dynamic (e.g., before, during, and after eating) and so restorations in a cavity must be resilient to these variable conditions. Temperature and immersion conditions affect the mechanical properties of a restoration. This study aimed to determine the effect of environmental conditions on diametral tensile strength (DTS) and surface microhardness of a resin composite with alkaline fillers or zirconia–reinforced glass ionomer cement (Zr-reinforced GIC). Method: Thirty specimens of a resin composite with alkaline fillers (Cention-N, Ivoclar-Vivadent, Lichtenstein) and 30 specimens with zirconia-reinforced GIC (Zirconomer, Shofu, Japan) were stored at different conditions (23°C and 37°C; with and without immersion in water) for 24 hours. DTS was tested with a Universal Testing Machine (AGS-X series, Shimadzu, Japan) and surface microhardness was tested with a Vickers Microhardness tester (HMV-G Series Micro Vickers Microhardness Tester, Shimadzu, Japan). Data were analyzed statistically using a one-way ANOVA test (and Shapiro-Wilk test. Result: The values of microhardness and DTS increased significantly both for the composite resin alkasite and zirconia-reinforced GIC with increasing temperature in the groups without immersion. However, there was a significant decrease in microhardness and DTS after immersion in distilled water at 37°C for both the composite resin alkasite and zirconia-reinforced GIC. Conclusion: It can be concluded that storage conditions affect the microhardness and DTS of resin composite Alkasite and Zirconia-reinforced GIC

FABRICATION OF POROUS CARBONATE APATITE BASED ON THE DISSOLUTION-PRECIPITATION OF CALCIUM SULFATE HEMIHYDRATE Dede Arsista; Yosi Kusuma Eriwati; Siti Triaminingsih; Sunarso Sunarso
Dentino : Jurnal Kedokteran Gigi Vol 4, No 2 (2019)
Publisher : FKG Unlam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/dentino.v4i2.7055

Background: Carbonate apatite (C-Ap) has been used as a bone replacement material because it has osteoconductive properties. The pores contained in C-Ap are useful so that cells can diffuse during new bone formation. Calcium sulfate hemihydrate (CaSO4.1/2H2O) precursor has been used as it possesses Ca2+ ions, while polymethylmetacrylate (PMMA) is chosen because it is easily burned out at low temperatures. Objectives: To fabricate porous carbonate apatite based on a calcium sulfate hemihydrate precursor using the dissolution-precipitation method and identify its phases by X-ray diffraction. Methods: The pores were made by crushing polymethyl methacrylate (PMMA) granules and sieving them to sizes of 300–500 µm. Specimens of porous carbonate apatite were prepared from a mixed calcium sulfate hemihydrate precursor with different quantities of porogen: 0 wt% PMMA (n = 60 ), 25 wt% PMMA ( n = 60 ), and 50 wt% PMMA ( n = 60 ). Calcium sulfate hemihydrate containing PMMA was mixed with distilled water at a water: powder ratio of 0.5 ml: 1g. Calcium sulfate dihydrate specimens were placed in an oven at 700˚C for 4 h to burn out the PMMA, resulting in porous calcium sulfate anhydrate. This was then immersed in phosphate mixed solution (Na3PO4) and carbonate solution (Na2CO3) for 1, 3, and 5 days to obtain carbonate apatite through a precipitation-dissolution process. An X-ray diffraction technique (X-Ray Diffractometer, PANalytical XPert PRO) was used to analyze each group of specimens to identify the phase formation of porous carbonate apatite. Results: The X-ray diffraction pattern showed peaks of carbonate apatite in all specimens with 0, 25, and 50 wt% PMMA in 1, 3, and 5 days of immersion, except in the 0 wt% specimens at 1 day. The carbonate apatite diffraction peaks were at 2q = 25.9°, 29.2°, 32°, and 34°. The earliest complete formation of the carbonate apatite phase was identified from the preparation of porous anhydrous CaSO4 with porogen of 50 wt% PMMA immersed for 1 day. Conclusion: Porous carbonate apatite can be produced from precursors of calcium sulfate hemihydrate and porogen of PMMA via a precipitation-dissolution method.

Shear bond strength of self-adhering flowable composite on dentin surface as a result of scrubbing pressure and duration Ferry Jaya; Siti Triaminingsih; Andi Soufyan S; Yosi Kusuma Eriwati
Dental Journal (Majalah Kedokteran Gigi) Vol. 45 No. 3 (2012): September 2012
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: Self-adhering flowable composite is a combination of composite resin and adhesive material. Its application needs scrubbing process on the dentin surface, but sometimes it is difficult to determine the pressure and duration of scrubbing. Purpose: This study was aimed to analyze the effect of scrubbing pressure and duration on shear bond strength of self-adhering flowable composite to dentin surface Methods: Fifty four mandibulary third molar were cut to get the dentin surface and divided into nine groups (n = 6). Dentin surface was scrubbed with 1, 2, and 3 grams of scrubbing pressure, each for 15, 20, and 25 seconds respectively. surface was scrubbed with 1, 2, and 3 grams of scrubbing pressure, each for 15, 20, and 25 seconds respectively. Composite resin was applied incrementally and polymerized for 20 seconds. All specimens were immersed in saline solution at 37º C for 24 hours. Shear bond strength was tested for all specimens by using Universal Testing Machine (Shimadzu AG-5000E, Japan) at a crosshead speed of 1 mm/minute and analyzed by ANOVA and Post Hoc Test Bonferonni. The interface between self-adhering flowable interface between self-adhering flowable composite and dentin was observed with a Scanning Electron Microscope (JEOL JSM 6510LA). Results: The highest shear bond strength was obtained by 3 grams scrubbing pressure for 25 seconds or equal to applying the brush applicator in 0º relative to dentin surface. Conclusion: Increasing the scrubbing pressure and duration will increase the shear bond strength of self adhering flowable composite resin to dentinal surface. The highest shear bond strength was obtained when the applicator in 0º relative to dentin surface. Latar belakang: Self-adhering flowable composite merupakan gabungan resin komposit dengan material adhesif yang dalam penggunaannya memerlukan teknik scrubbing pada permukaan dentin, namun sulit untuk menentukan besar tekanan yang tepat saat scrubbing. Tujuan: Tujuan dari penelitian ini adalah untuk menganalisa pengaruh tekanan dan lama scrubbing saat aplikasi selfadhering flowable composite terhadap shear bond strength pada permukaan dentin. Metode: 54 gigi molar-3 rahang bawah dipotong sampai permukaan dentin dan dibagi atas 9 kelompok (n = 6). Scrubbing pada permukaan dentin dilakukan dengan besar tekanan 1, 2, dan Scrubbing pada permukaan dentin dilakukan dengan besar tekanan 1, 2, dan 3 gram, masing-masing selama 15, 20, dan 25 detik. Resin komposit diaplikasikan secara inkremental dan dipolimerisasi dengan sinar selama 20 detik. Spesimen direndam dalam larutan salin dan disimpan dalam inkubator pada suhu 37º C selama 24 jam. Shear bond strength diuji menggunakan Universal Testing Machine. Analisa data melalui uji ANOVA diikuti Post Hoc Test Bonferonni. Antarmuka self-adhering flowable composite resin dan dentin diamati melalui Scanning Electron Microscope (SEM). Hasil: Shear bond strength tertinggi antara self-adhering flowable composite resin dan dentin diperoleh pada tekanan scrubbing 3 gram selama 25 detik atau kuas membentuk sudut 0º dengan permukaan dentin. Kesimpulan: Semakin besar tekanan dan lama waktu scrubbing akan meningkatkan shear bond strength material self-adhering flowable composite resin terhadap permukaan dentin. Kekuatan paling tinggi diperoleh bila kuas aplikator membentuk sudut 0º dengan permukaan dentin selama proses scrubbing.

KILAU PERMUKAAN MATERIAL RESTORATIF GLASS-HYBRID SETELAH PERENDAMAN PADA BERBAGAI pH SALIVA BUATAN Claudia Anggasaputra; Yosi Kusuma Eriwati; Siti Triaminingsih
Cakradonya Dental Journal Vol 12, No 1 (2020): Februari 2020
Publisher : FKG Unsyiah

Material restoratif glass-hybrid mengalami peningkatan kekasaran dalam larutan dengan pH rendah namun belum banyak diteliti nilai sifat kilau permukaannya dalam saliva pH rendah. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai pH saliva buatan terhadap sifat kilau permukaan material restoratif glass-hybrid. Spesimen restorasif glass-hybrid (EQUIA® Forte Glass-Hybrid Restorative System, GC Japan) (90 buah) dibagi dalam 9 kelompok (n=10) perlakuan perendaman dalam saliva buatan dengan pH 4,5; 5,5; 7, dan waktu perendaman 1 jam, 24 jam, dan 72 jam. Uji kilau permukaan menggunakan Glossmeter (Novo-Curve Rhopoint Instrument, UK) dengan sudut 60o. Data dianalisa statistik dengan One-way ANOVA untuk mengetahui kemaknaan nilai kilau permukaan antar kelompok spesimen. Nilai kilau permukaan pada kelompok perendaman dalam saliva buatan pH 4,5 selama 1 jam, 24 jam dan 72 jam menghasilkan nilai 35,8±2,77 GU; 37,07±2,03 GU, dan 41,3±4,09 GU. Kelompok dalam saliva buatan pH 5,5: 1 jam, 24 jam, dan 72 jam mengalami kenaikan nilai kilau permukaan menjadi 33,68±3,23 GU; 34,145±2,6 GU, dan 37,73±1,81 GU. Nilai surface gloss pada perendaman saliva buatan pH 7: 1 jam, 24 jam, dan 72 jam adalah 32,93±3,23 GU; 32,77±2,42 GU, dan 32,98±2,34 GU. Disimpulkan pada pH saliva buatan lebih rendah dan peningkatan lama perendaman terjadi peningkatan sifat kilau permukaan material restoratif glass-hybrid.

PROPERTIES OF COMPOSITE RESIN ALKASIT AND ZIRCONIA-REINFORCED GLASS-IONOMER CEMENT IN DIFFERENT STORAGE Clarinda Vinindya; Cynthia Pratiwi; Yosi Kusuma Eriwati; Siti Triaminingsih; Decky J Indrani
Odonto : Dental Journal Vol 7, No 1 (2020): July 2020
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Background: The temperature and salivary pH in a person's mouth are highly dynamic (e.g., before, during, and after eating) and so restorations in a cavity must be resilient to these variable conditions. Temperature and immersion conditions affect the mechanical properties of a restoration. This study aimed to determine the effect of environmental conditions on diametral tensile strength (DTS) and surface microhardness of a resin composite with alkaline fillers or zirconia–reinforced glass ionomer cement (Zr-reinforced GIC). Method: Thirty specimens of a resin composite with alkaline fillers (Cention-N, Ivoclar-Vivadent, Lichtenstein) and 30 specimens with zirconia-reinforced GIC (Zirconomer, Shofu, Japan) were stored at different conditions (23°C and 37°C; with and without immersion in water) for 24 hours. DTS was tested with a Universal Testing Machine (AGS-X series, Shimadzu, Japan) and surface microhardness was tested with a Vickers Microhardness tester (HMV-G Series Micro Vickers Microhardness Tester, Shimadzu, Japan). Data were analyzed statistically using a one-way ANOVA test (and Shapiro-Wilk test. Result: The values of microhardness and DTS increased significantly both for the composite resin alkasite and zirconia-reinforced GIC with increasing temperature in the groups without immersion. However, there was a significant decrease in microhardness and DTS after immersion in distilled water at 37°C for both the composite resin alkasite and zirconia-reinforced GIC. Conclusion: It can be concluded that storage conditions affect the microhardness and DTS of resin composite Alkasite and Zirconia-reinforced GIC

KILAU PERMUKAAN MATERIAL RESTORATIF GLASS-HYBRID SETELAH PERENDAMAN PADA BERBAGAI pH SALIVA BUATAN Claudia Anggasaputra; Yosi Kusuma Eriwati; Siti Triaminingsih
Cakradonya Dental Journal Vol 12, No 1 (2020): Februari 2020
Publisher : FKG Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/cdj.v12i1.17066

Material restoratif glass-hybrid mengalami peningkatan kekasaran dalam larutan dengan pH rendah namun belum banyak diteliti nilai sifat kilau permukaannya dalam saliva pH rendah. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai pH saliva buatan terhadap sifat kilau permukaan material restoratif glass-hybrid. Spesimen restorasif glass-hybrid (EQUIA Forte Glass-Hybrid Restorative System, GC Japan) (90 buah) dibagi dalam 9 kelompok (n=10) perlakuan perendaman dalam saliva buatan dengan pH 4,5; 5,5; 7, dan waktu perendaman 1 jam, 24 jam, dan 72 jam. Uji kilau permukaan menggunakan Glossmeter (Novo-Curve Rhopoint Instrument, UK) dengan sudut 60o. Data dianalisa statistik dengan One-way ANOVA untuk mengetahui kemaknaan nilai kilau permukaan antar kelompok spesimen. Nilai kilau permukaan pada kelompok perendaman dalam saliva buatan pH 4,5 selama 1 jam, 24 jam dan 72 jam menghasilkan nilai 35,82,77 GU; 37,072,03 GU, dan 41,34,09 GU. Kelompok dalam saliva buatan pH 5,5: 1 jam, 24 jam, dan 72 jam mengalami kenaikan nilai kilau permukaan menjadi 33,683,23 GU; 34,1452,6 GU, dan 37,731,81 GU. Nilai surface gloss pada perendaman saliva buatan pH 7: 1 jam, 24 jam, dan 72 jam adalah 32,933,23 GU; 32,772,42 GU, dan 32,982,34 GU. Disimpulkan pada pH saliva buatan lebih rendah dan peningkatan lama perendaman terjadi peningkatan sifat kilau permukaan material restoratif glass-hybrid.

KILAU PERMUKAAN MATERIAL RESTORATIF GLASS-HYBRID SETELAH PERENDAMAN PADA BERBAGAI pH SALIVA BUATAN Anggasaputra, Claudia; Eriwati, Yosi Kusuma; Triaminingsih, Siti
Cakradonya Dental Journal Vol 12, No 1 (2020): Februari 2020
Publisher : FKG Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/cdj.v12i1.17824

Material restoratif glass-hybrid mengalami peningkatan kekasaran dalam larutan dengan pH rendah namun belum banyak diteliti nilai sifat kilau permukaannya dalam saliva pH rendah. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai pH saliva buatan terhadap sifat kilau permukaan material restoratif glass-hybrid. Spesimen restorasif glass-hybrid (EQUIA Forte Glass-Hybrid Restorative System, GC Japan) (90 buah) dibagi dalam 9 kelompok (n=10) perlakuan perendaman dalam saliva buatan dengan pH 4,5; 5,5; 7, dan waktu perendaman 1 jam, 24 jam, dan 72 jam. Uji kilau permukaan menggunakan Glossmeter (Novo-Curve Rhopoint Instrument, UK) dengan sudut 60o. Data dianalisa statistik dengan One-way ANOVA untuk mengetahui kemaknaan nilai kilau permukaan antar kelompok spesimen. Nilai kilau permukaan pada kelompok perendaman dalam saliva buatan pH 4,5 selama 1 jam, 24 jam dan 72 jam menghasilkan nilai 35,82,77 GU; 37,072,03 GU, dan 41,34,09 GU. Kelompok dalam saliva buatan pH 5,5: 1 jam, 24 jam, dan 72 jam mengalami kenaikan nilai kilau permukaan menjadi 33,683,23 GU; 34,1452,6 GU, dan 37,731,81 GU. Nilai surface gloss pada perendaman saliva buatan pH 7: 1 jam, 24 jam, dan 72 jam adalah 32,933,23 GU; 32,772,42 GU, dan 32,982,34 GU. Disimpulkan pada pH saliva buatan lebih rendah dan peningkatan lama perendaman terjadi peningkatan sifat kilau permukaan material restoratif glass-hybrid.

Title

Found 10 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search