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All Journal Dental Journal (Majalah Kedokteran Gigi) U Karst Jurnal Material Kedokteran Gigi
Soebagio
Departemen Material Kedokteran Gigi Fakultas Kedokteran Gigi Universitas Airlangga
Civil Engineering, Building, Construction & Architecture Dentistry Materials Science & Nanotechnology

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Candida albicans adherence on acrylic resin plates immersed in black tea steeping Soebagio Soebagio
Dental Journal (Majalah Kedokteran Gigi) Vol. 43 No. 4 (2010): December 2010
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 (213.539 KB) | DOI: 10.20473/j.djmkg.v43.i4.p201-204

Abstract

Background: Black tea or Cournelia sinensis is one of known tea varieties in Indonesia. Actually, black tea is consumed daily as beverage that can function as antiseptics and fungicides. Black tea containing antibacterial and fungicide properties can reduce the number of Candida albicans (C. albicans) colony attachment on the surface of acrylic resin plates. Purpose: This study was done to determine the effective concentration of black tea steeping used as the immersion material of acrylic resin plates towards the number of Candida albicans colonies. Methods: In this study, acrylic resin plates with the size of 10 × 20 × 1 mm were immersed in black tea steeping with the following concentrations, 3.33%, 6.66%, and 13.33%, for one hour. The growth of C. albicans colonies were then detected by counting the number of colonies growing on Sabouraud’s dextrose medium. Data was analyzed by using both One-Way ANOVA with the significance level of 5%, and Tuckey’s multiple comparison tests (Tuckey’s HSD test). Results: There were significant differences in the number of C. albicans colonies in acrylic resin plates immersed in black tea with the concentration of 3.33%, 6.66%, and 13.33%. Conclusion: It can be concluded that the higher concentration of black tea (13.33%) used to immerse acrylic resin plates, the greater the decreased number of C. albicans colonies.Latar belakang: Teh hitam atau Cournelia sinensis adalah salah satu macam teh yang dikenal di Indonesia. Teh hitam seringkali dipakai sebagai minuman sehari- hari dan berkhasiat sebagai antiseptik maupun fungisid. Teh hitam yang mengandung sifat antibakteri dan fungisid dapat menurunkan jumlah koloni Candida albicans (C. albicans) yang melekat pada permukaan lempeng resin akrilik. Tujuan: Untuk mengetahui konsentrasi efektif seduhan teh hitam sebagai bahan perendam lempeng resin akrilik terhadap jumlah koloni C. albicans. Metode: Pada penelitian ini lempeng resin akrilik ukuran 10 × 20 × 1 mm direndam dalam seduhan teh hitam konsentrasi 3,33%, 6,66%, 13,33% selama 4 jam. Pertumbuhan jumlah koloni C. albicans dilakukan dengan cara menghitung jumlah koloni yang tumbuh pada media Sabouraud’s dextrose. Analisis data menggunakan uji anova satu arah dengan taraf kemaknaan 5%, uji pembanding ganda tuckey HSD. Hasil: Terdapat perbedaan yang bermakna jumlah koloni C. Albicans yang melekat pada lempeng resin akrilik yang direndam dalam seduhan teh hitam dengan konsentrasi 3,33%, 6,66% dan 13,33%. Kesimpulan: Konsentrasi 13,33% atau makin pekat seduhan teh hitam yang digunakan untuk merendam lempeng resin akrilik menyebabkan penurunan jumlah koloni C. albicans.
Vibragamator, Kombinasi Vibrator dengan Amalgamator Helal Soekartono; Mochamad Bayu Setiawan; Soebagio Soebagio
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.v9i1.359

Abstract

Amalgam mixing proccess should be completely homogeneous so that the amalgam toxicity is reduced. Untreated caries will result in some disadvantage, one of which is tooth loss and should be made a substitute for denture. Making artificial teeth requires a study model. The study model was made from the manufacture of gypsum that was manipulated with water. The preparation of gypsum dough should be minimal porusity in order for the study model to be strong and scratch resistant. Model study should be strong and minimal porusity. Stagnant and homogeneous stirring results in porousity. The porosity of the gypsum dough will affect its compression. Research purpose to Produce amalgam prints that have an initial set time faster and produce gypsum prints that have better compressive strokes. The study used a total sample of 28 specimens. The specimens were divided into 2 control groups and 2 treatment groups with each group consisting of 7 specimens. Manipulation of gypsum by using Vibragamator with ratio done and vibrator. Compare compressive strength test results using autograph. Manipulation of amalagam by using the vibrator and amalgamator together with record the time of manipulation. Result, gypsum with the aid of a vibragamator has a higher level of Compressive Strength than using a vibrator. Amalgam using amalgamator has a faster initial time set compared to using vibragamator. Conclusion, prototype Vibragamator can produce stronger and harder gypsum mold but less effective in shuffling amalgam.
Uji Stabilitas Mikrobiologis Pembersih Gigi Tiruan dengan Bahan Minyak Atsiri Kulit Batang Kayu Manis (Cinnamomum burmannii) Niken Pristianingrum; Soebagio Soebagio; Elly Munadziroh
Jurnal Material Kedokteran Gigi Vol 1 No 2 (2012): JMKG Vol 1 No 2 September 2012
Publisher : Ikatan Peminat Ilmu Material dan Alat Kedokteran Gigi (IPAMAGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.257 KB)

Abstract

Denture cleaners are products designed to clean stains, deposits, and debris from the surface of the denture, by soaking or brushing with tooth brush and toothpaste for dentures. Cinnamon is a tree with aromatic bark has a very strong odor. Cinnamon has the effect of antifungal, antiviral, bactericidal, and larvasidal. The aim of this research made denture cleaning preparations with ingredients of essential oil of cinnamon bark and microbiological stability test to be have done. In this research, microbiological stability test that includes total plate count test and pathogen microbial test denture cleaning with ingredients of essential oil cinnamon bark 2%, which is stored in a period of 1 week, 2 weeks, 3 weeks, 4 weeks, 2 months, and 3 months. In addition to supporting the results of the study, researchers conducted a preliminary test of the effectiveness of essentials oil of cinnamon bark against Candida albicans. Showed that there was no change in total plate count and the growth of microbial pathogens in denture cleaning preparations with the ingredients of essential oil of cinnamon bark up to 3 months. This shows that the stocks stable in storage at room temperature until the 3 months. Denture cleaning preparations was stable in storage up to 3 months. weeks
Evaluation of Seawater Intrusion and Impact on Infrastructure in the Coastal Area of ​​North Surabaya Soebagio; Kathulistiani, Utari; Pahing, Johan; Datom, Konstantinus
UKaRsT Vol. 9 No. 1 (2025): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v9i1.6590

Abstract

Several wells of coastal residents at North Surabaya experienced changes in odor, taste, and color indicating seawater intrusion. This phenomenon can cause an increase in groundwater salinity, which impacts clean water quality, public health, and infrastructure resilience. Therefore, it is important to evaluate seawater intrusion in the area. This study aims to evaluate the level of seawater intrusion, determine the distribution pattern of intrusion, and identify high-risk zones for seawater intrusion and the level of infrastructure vulnerability to corrosion. The methods used include analysis of physical and chemical parameters of groundwater, intrusion assessment using the Revelle Index and Electrical Conductivity (EC), and mapping based on Geographic Information System (GIS) to determine the distribution pattern of intrusion. The laboratory's well water sample testing showed an average EC score approaching 1500 μS/cm, and the R-value was far above 1. It meant that well water in North Surabaya has been facing seawater intrusion from medium to high levels. It also predicted the distance of seawater intrusion is about 2,5 km from the coastline and has the most significant risk of infrastructure degradation due to corrosion. Seawater intrusion in Surabaya is caused by geographical proximity to the sea, aquifers' hydrodynamic factors, and high groundwater exploitation. The results of this study contribute to providing a seawater intrusion risk map that can be a reference for the government and policymakers in developing mitigation strategies and groundwater management policies to reduce the impact of seawater intrusion.
Co-Authors Datom, Konstantinus Elly Munadziroh Kathulistiani, Utari Mochamad Bayu Setiawan Niken Pristianingrum Pahing, Johan R Helal Soekartono