Andi Triawan
Department Of Orthodontics, Faculty Of Dentistry, Universitas Gadjah Mada, Yogyakarta

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

Pengaruh Sel Galvanik Kawat Busur Ortodontik Cekat Australia dan Nikel Titanium dengan Amalgam terhadap Pelepasan Ion Nickel: Studi Laboratoris pada Lingkungan Saliva Tiruan dengan pH Normal Andi Triawan
Mutiara Medika: Jurnal Kedokteran dan Kesehatan Vol 7, No 2 (2007)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/mmjkk.v7i2.1670

Abstract

In the oral environment, orthodontic appliances can potentially release metal elements; it is influenced by temperature change, oral microbe, oral enzymes, change of saliva pH and galvanic coupling of dissimilar metal alloy. At present, most orthodontic patients have amalgam fillings on their teeth. The aim of this study was to identify nickel ion release caused by Australian and nickel titanium orthodontic arch wires galvanic cells with amalgam. Subjects were divided into 4 groups i.e. group 1 consisting of 8 Australian wires, group 2 consisting of 8 Australian wires and 8 amalgams, group 3 consisting of 8 NiT wires, and group 4 consisting of 8 NiTi wires and 8 amalgams. Each group was immersed in 20 ml artificial saliva with normal pH and temperature 37C. On the third, fifth and seventh day, the artificial saliva was changed with fresh artificial saliva. The quantity of nickel ions released was measuredfrom the artificial saliva immerse of the four groups using Atomic Absorption Spectrophotometer (AAS). The data collected was analyzed statistically using 2-ways Analysis of Variance and t-test. The result of the study showed that the average release of nickel ions from Australian wires andNiTi wires coupled with amalgam was greater than Australian wires andNiTi wires themselves (p0,01), and the quantity of nickel ions released from Australian wires was greater than NiTi wires (p0,01). In conclusion, galvanic cells Australian and Nickel Titanium orthodontic arch wires with amalgam affect the release of nickel ions significantly.Pada lingkungan mulut, peralatan ortodontik berpotensi melepaskan elemen-elemen logam, yang dipengaruhi oleh perubahan suhu, mikroba mulut, enzim mulut, perubahan pH ludah dan pasangan galvanik logam paduan yang berbeda. Saat ini pada sebagian besar pasien ortodontik cekat digunakan amalgam sebagai bahan tambalan pada giginya. Penelitian ini bertujuan mengetahui pengaruh sel galvanik kawat busur ortodontik cekat australia dan nikel titanium dengan amalgam terhadap pelepasan ion nickel pelepasan ion nikel yang disebabkan oleh kawat busur ortodontik cekat australia dan nikel titanium. Subyek penelitian dibagi menjadi 4 kelompok yaitu kelompok 1 terdiri atas 8 kawat Australia; kleompok 2 terdiri atas 8 kawat Australia dan 8 amalgam, kelompok 3 terdri atas 8 kawat NiTi, dan kelompok 4 terdiri atas 8 kawat NiTi dan 8 amalgam. Tiap kelompok direndam dalam 20 ml saliva tiruan dengan pH normal dan suhu 37C. Saat perendaman hari ke-3, hari ke-5 dan ke-7, saliva tiruan diganti dengan saliva tiruan yang baru. Jumlah pelepasan ion nikel dianalisis dari saliva tiruan hasil perendaman ke-4 kelompok pada hari ke-3, hari ke-5 dan ke-7 dengan Atomic Absorption Spectrophotometer (AAS). Analisis statistik yang digunakan adalah varians 2 jalur dilanjutkan dengan uji t. Hasil penelitian menunjukkan rerata jumlah pelepasan ion nikel pada kawat Australia dan kawat NiTi yang berpasangan dengan amalgam lebih besar daripada kawat Australia dan kawat NiTi itu sendiri (p0,01) dan jumlah pelepasan ion nikel pada kawatAustralia lebih besar dari pada kawat NiTi (p0,01). Kesimpulannya adalah sel galvanik kawat busur ortodontik cekat australia dan nikel titanium dengan amalgam meningkatkanjumlah pelepasan ion nikel kawat busur ortodontik cekat Australia dan Nikel Titanium.
The effect of nanochitosan hydrogel membrane on absorbtion of nickel, inhibition of Streptococcus mutans and Candida albicans Andi Triawan; Pinandi Sri Pudyani; Soesatyo Marsetyawan HNE; Sismindari -
Dental Journal (Majalah Kedokteran Gigi) Vol. 48 No. 1 (2015): March 2015
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.037 KB) | DOI: 10.20473/j.djmkg.v48.i1.p26-30

Abstract

Background: The use of fixed orthodontic appliance for a long time can potentially cause nickel ion release, increase in the growth of Streptococcus mutans (S. mutans) and Candida albicans (C. albicans). Chitosan has the ability to bind metal, antibacterial and antifungal. Physical modification of chitosan into the nanoparticles size will expand the surface of the chitosan so that the absorption of nickel ions and the inhibition of growth bacteria and fungi can be increased. Purpose: The purpose of the study was to determine the effect of nanochitosan hydrogel membrane to the absorption of nickel ions, and the inhibition of S. mutans and C. albicans growth. Methods: Nanochitosan hydrogel membrane with chitosan weight variation of 0.6; 0.8 and 1 g immersed in artificial saliva containing nickel 0.075 mg / L for 15, 30 and 45 minutes. The nanochitosan hydrogel membrane was tested for nickel ion absorption by Atomic Absorption Spectrophotometry, whereas the antibacterial and antifungal tests were done by exposing the nanochitosan hydrogel membrane - nickel on S. mutans and C. albicans in the wells of plate. Results: Demonstrated that absorption of nickel ions was related with the increase in weight of chitosan and soaking time. Inhibition of growth of S. mutans and C. albicans showed a positive correlation with the increase in weight of chitosan. Conclusion: Variation on chitosan weight on hydrogel membrane and variation on immersion time have effect on nickel ion absorption, inhibition of S. mutans and C. albicans growth.
The effect of aerosol suction distance during brushing brackets of orthodontic patients on the presence of Streptococcus and Staphylococcus Andi Triawan; Belladina Yusi Lasara
Majalah Kedokteran Gigi Indonesia Vol 8, No 2 (2022): August
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.77444

Abstract

Dentists are one of the professions most at risk of infection transmission because dental care potentially produces many infectious aerosols for bacterial transmission. Using personal protective equipment and aerosol suction that meets the standards for dentists is vital to prevent cross-infection in patients in practice. This study aims to determine the effect of aerosol suction distance on the orthodontic patient bracket brushing process on total plate number and the presence of Streptococcus and Staphylococcus on the dentist’s face shield. The method used is the swab method on the face shield used by dentists after brushing orthodontic patient brackets with variations in the distance of aerosol suction to the oral cavity of 10 cm, 15 cm, and 20 cm. After 2 x 24 hours of incubation, the total plate count was calculated, and Streptococcus and Staphylococcus were identified by analyzing the characteristics of the growing colonies and executing the catalase test. The results showed that the lowest total plate number found on a face shield with aerosol suction distance of 10 cm from the oral cavity, 1.23 ± 0.01 CFU/cm2. The one-way ANOVA test obtained a significance value of p < 0.05, concluding that the variation of the aerosol suction distance affects the total face shield plate number. The presence of bacteria on the face shield was negative for Streptococcus and positive for Staphylococcus.