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All Journal Dentika Dental Journal Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dental Researchers and Students Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) Cerdika: Jurnal Ilmiah Indonesia Cakradonya Dental Journal Jurnal of Syiah Kuala Dentistry Society
Eddy Dahar
Departemen Prostodonsia Fakultasi Kedokteran Gigi Universitas Sumatera Utara
Humanities Biochemistry, Genetics & Molecular Biology Dentistry Economics, Econometrics & Finance Education Health Professions Immunology & microbiology Medicine & Pharmacology Nursing Public Health Social Sciences

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Journal : Dentika Dental Journal

 1 
PERBAIKAN SIFAT FISIS DAN MEKANIS RESIN AKRILIK POLIMERISASI PANAS DENGAN PENAMBAHAN SERAT KACA: IMPROVEMENT OF PHYSICAL AND MECHANICAL PROPERTIES OF THE HOT POLYMERIC ACRYLIC RESIN BY ADDING GLASS FIBRE Zuriah Sitorus; Eddy Dahar
Dentika: Dental Journal Vol. 17 No. 1 (2012): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.254 KB) | DOI: 10.32734/dentika.v17i1.1768

Abstract

Resin akrilik polimerisasi panas (RAPP) banyak digunakan sebagai bahan pembuat basis gigi tiruan, karena memilikisejumlah keunggulan di antaranya bersifat biokompatibel, kualitas estetis yang cukup memuaskan, penyerapan air yangrendah, memiliki konduktivitas termal yang baik, mudah diproses dan direparasi tanpa membutuhkan tenaga ahlilaboratorium. RAPP masih memiliki kekurangan terutama dalam hal kekuatan dan kekerasan sehingga bahan ini tidakjarang mengalami retak atau fraktur akibat pemakaian. Beberapa literatur melaporkan bahwa penambahan serat karbon,serat metal, atau serat kaca dalam jumlah tertentu dapat memperbaiki sifat fisis dan mekanis bahan RAPP. Penelitian inibertujuan untuk membandingkan sifat fisis dan mekanis RAPP yang ditambah serat kaca dengan RAPP tanpapenambahan serat kaca. Serat kaca yang digunakan adalah produk Taiwan Glass berukuran 4 mm, 6 mm dan 8 mmsebanyak 1% dari total volume RAPP. Pengujian yang dilakukan meliputi : densitas, porositas, absorbsi air, kekuatantekan, kekerasan vickers, kekuatan tarik, modulus young’s, kekuatan impak dan kekuatan transversal, koordinat warnadan analisa mikrostruktur. Hasil penelitian menunjukkan bahwa RAPP dengan penambahan serat kaca ukuran 6 mmmerupakan kondisi optimum, diperoleh : densitas 1,25 g/cm3, porositas 0,46%, absorbsi air 0,36%, kekuatan tekan 88,89Mpa, kekerasan vickers 21,067kg/mm2, kekuatan tarik 70,43 Mpa, modulus young’s 3328,49 Mpa, kekuatan impak 6,70j/mm2, kekuatan tranversal 129 Mpa. Tidak terlihat adanya perubahan yang signifikan pada warna resin akrilik. Sebagaikesimpulan, penambahan serat kaca ukuran 6 mm sebanyak 1% dari total volume RAPP ternyata dapat menghasilkanpeningkatan kualitas fisis dan mekanis yang optimum dari RAPP.
GIGI TIRUAN JEMBATAN UNTUK GIGI MOLAR KEDUA RAHANG BAWAH YANG HILANG MELIBATKAN MOLAR KETIGA SEBAGAI GIGI PENYANGGA: FIXED PARTIAL DENTURE FOR THE MISSING MANDIBULAR SECOND MOLAR WITH THE VOLVEMENT OF THE THIRD MOLAR AS ABUTMENT Eddy Dahar
Dentika: Dental Journal Vol. 16 No. 1 (2011): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.677 KB) | DOI: 10.32734/dentika.v16i1.1907

Abstract

Making fixed partial denture to replace the missing mandibular second molar with the involvement of the third molar as abutment is rarely done, because the location of the 3rd molar is far behind and the narrow space for operator in making the tooth preparation. In addition, the shape and size of crown and root, and position of the 3rd molar in the dental arch does not often encounter the requirement to serve as an abutment. We have made fixed partial denture for a patient who had lost his second lower molar by using the first and third molar as an abutment. The 3rd molar is tilted to mesial along to the lingual aspect more than 25º, so we decided to make an intra coronal retainer to the teeth. In line with decreasing the chewing forces, the pontic occlusal surface area, had been made narrow by 20-30%. The result showed that there was no complaint from the patient after the insertion of the dentures. In conclusion, the manufacture of fixed partial denture to replace the missing mandibular second molar with the involvement of the third molar as abutment can be done by considering carefully the principles of biomechanical and preparation.
PENGARUH BAHAN PEMBERSIH GIGI TIRUAN TERHADAP JUMLAH CANDIDA ALBICANS PADA BAHAN BASIS GIGI TIRUAN RESIN AKRILIK POLIMERISASI PANAS YANG DIPOLES DAN TIDAK DIPOLES: EFFECT OF DENTURE CLEANSERS TOWARDS CANDIDA ALBICANS FROM POLISHED AND UNPOLISHED HEAT POLYMERIZED DENTURE ACRYLIC RESIN Eddy Dahar; David Chandra
Dentika: Dental Journal Vol. 18 No. 1 (2014): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dentika.v18i1.1953

Abstract

Pembersih gigi tiruan diperlukan untuk menjaga kebersihan gigi tiruan dan perbedaan kekasaran pada permukaan gigitiruan yang dipoles dan tidak dipoles dapat mempengaruhi perlekatan Candida albicans. Tujuan penelitian ini adalahuntuk mengetahui pengaruh bahan pembersih gigi tiruan terhadap jumlah Candida albicans pada bahan basis gigi tiruanresin akrilik polimerisasi panas yang dipoles dan tidak dipoles. Penelitian ini menggunakan 54 lempeng resin akrilikpolimerisasi panas dengan ukuran 10x10x1mm. Subjek penelitian diinkubasi dalam suspensi Candida albicansselama 24jam pada suhu 370C. Subjek penelitian dibagi menjadi 6 kelompok yang terbagi menjadi dua kelompok utama yaitupermukaan yang dipoles dan tidak dipoles. Setiap kelompok utama dibagi lagi berdasarkan kelompok yang direndamdalam sodium hipoklorit 0,5% selama 10 menit, alkali peroksida selama 5 menit dan tanpa perendaman sebagaikelompok kontrol. Tiap kelompok terdiri atas 9 lempeng resin akrilik. Setelah diberi perlakuan, lempeng tersebutdimasukkan ke dalam tabung reaksi yang beriisi NaCl 0,9% 10 ml dan digetarkan dengan vortex selama 30 detik,kemudian 0,1 ml dari larutan tersebut dibenihkan ke dalam Sabouraud Dextrose Agar. Jumlah Candida albicans dihitungdalam colony forming units per 1ml. Data dianalisis dengan menggunakan uji Kruskal-Wallis dan Mann-Whitney. Hasilpenelitian menunjukkan terdapat perbedaan yang signifikan akibat pengaruh penggunaan sodium hipoklorit 0,5% danalkali peroksida terhadap jumlah Candida albicans pada bahan basis gigi tiruan resin akrilik polimerisasi panas yangdipoles dan tidak dipoles (p< 0,05). Sebagai kesimpulan, perendaman bahan basis gigi tiruan resin akrilik polimerisasipanas pada larutan sodium hipoklorit 0,5% selama 10 menit dapat mengurangi hampir 100% perlekatan Candida albicans pada permukaan resin akrilik polimerisasi panas yang dipoles dan tidak dipoles.
Effect of Immersion Duration in Coffee Beverage on Colour Stability of Polymethyl Methacrylate Denture Base Reinforced with 1% Chitosan Nanogel (Laboratory Study) Rahmawati, Lutfi; Dahar, Eddy; Angelia, Veronica
Dentika: Dental Journal Vol. 26 No. 2 (2023): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dentika.v26i2.11719

Abstract

Hot polymerized acrylic resin (RAPP) denture bases have several weaknesses, so RAPP requires reinforcing materials, one of which is chitosan. Extrinsic factors cause color changes in RAPP. The aim of this research was to determine the effect of soaking time for RAPP denture base material after adding 1% chitosan nanogel in coffee solution on color stability. Laboratory experimental research, using 16 cylindrical plates, diameter 15 x 2 mm (n = 8 from each group). There are 2 groups, the water-soaked group and the coffee drink group. Color stability measurements were carried out before and after soaking for 1, 2, 3, 4, and 7 days. The color stability of the samples was tested using a colorimeter and color changes were analyzed using the Kruskall-Wallis and Mann-Withney tests. There is an effect of soaking time for RAPP denture base material on color stability with a value of p = 0.0001. Soaking the RAPP denture base material after adding 1% chitosan nanogel in a coffee solution for color stability for 4 days is still clinically acceptable.
The Effect of Immersion Duration in Cinnamon Extract on Color Stability of Heat-Polymerized Acrylic Resin Denture Base Veronica Angelia; Eddy Dahar; Satriawan Jodi
Dentika: Dental Journal Vol. 27 No. 2 (2024): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dentika.v27i2.11817

Abstract

Heat polymerized acrylic resin is a material that is often used as a denture base. Cinnamon extract (Cinnamomum burmannii) has the ability to inhibit the growth of Candida albicans. However, ideally, denture cleaning agents should not affect the color stability of heat polymerized acrylic resin. The aim of this study was to evaluated the effect of immersion duration in cinnamon extract simulating 1, 2, 3, 4, and 5 years of use on colour stability of heat-polymerized acrylic resin denture base. Thirty unit samples heat polymerized acrylic resin with measurment 20 x 3 mm divided into 2 groups, group A (Aquabidest) B (alkaline peroxide), and C (50% cinnamon extract). After measuring the pretest values, the samples were soaked for 5 minutes each day simulated 1, 2, 3, 4, and 5 years of use. Discoloration (∆E) was evaluated using a colorimeter according to CIELAB (Commision de l'ECLAIRAGE) standards. Data were analyzed using one-way ANOVA and LSD (Least Significant Difference) statistical tests. There is an effect of immersion duration of heat polymerized acrylic resin denture base in use for 1, 2, 3, 4, and 5 years in groups A and B on colour stability 0.0001 (p<0.05). The colour change in group B was greater than that in group A, the ∆E value of all samples in both groups continued to increase with the length of immersion duration. However, the colour change that occurred is still clinically acceptable.
Co-Authors Allya Nurul Laily Anita Ridaryanti Siregar Auliana, Amirah Najla david chandra david chandra Iyal Naidu, Sharmila Naidu A/P Monica Evithalia Manurung Nasution, Rizki Nurul Fadilah Pasaribu, Gabriel Gomgom Nicholas Rahmawati, Lutfi Raudhatul Husna Safira Maulida Suci Satriawan Jodi Sebayang, Sara Nabila Br. Sembiring, Rasbina Anggriani Sharmila Naidu A/P Iyal Naidu Siregar, Chintika Bernaditha Siti Wahyuni Sitompul, Rona Oktavia Sri Handayani Veronica Angelia Veronica Angelia Zuriah Sitorus