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All Journal Dentika Dental Journal ODONTO Dental Journal Journal Of Syiah Kuala Dentistry Society Cakradonya Dental Journal Odonto dental journal
Diana Setya Ningsih
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Dentistry Health Professions Medicine & Pharmacology Public Health

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Journal : Dentika Dental Journal

 1 
APLIKASI BAHAN ABRASIF TERHADAP KEKASARAN PERMUKAAN RESIN KOMPOSIT: APPLICATION OF ABRASIVE MATERIALS ON SURFACE ROUGHNESS OF COMPOSITES RESIN Diana Setya Ningsih; Decky Jusiana Indrani
Dentika: Dental Journal Vol. 15 No. 1 (2010): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.543 KB) | DOI: 10.32734/dentika.v15i1.1694

Abstract

Composites resin restoration should be smooth and glossy to improve aesthetic and prevent food retention. Therefore, polishing procedure is needed to reduce surface roughness in order to achieve smooth surface using abrasive materials. The purpose of this article was to discuss the influence of abrasive materials on surface roughness of resin composites. The ability of abrasive materials to reduce surface roughness depends on the three main factors. Grit size and particle orientation give a significant effect on the degree of abrasion of resin composites surface. Mean while, the sharp edge particle has a greater contact point which has an ability to cut more resin composite on the surface rather than round shape particle. Surface roughness of abrasive materials also plays a role for reducing the surface roughness of filler resin composites, therefore alumina oxide is more suitable to make smooth surface of resin composites. In addition, duration application and pressure of abrasive bahan can influence the abrasion rate of surface roughness of resin composites. Therefore, it can be concluded that particle shape and size of abrasive materials, hardness of abrasive materials and duration of application and pressure when application abrasive materials play important role in reducing surface roughness and abrasion rate of resin composites. All of those factors must be concerned in polishing, therefore, the smooth and glossy surface can be obtained.
PENGARUH LAMA PAPARAN CUKA APEL TERHADAP PERUBAHAN DIMENSI AKRILIK HEAT CURED: EFFECT OF IMMERSED TIMES OF APPLE VINEGAR ON DIMENSIONAL CHANGES OF HEAT CURED ACRYLIC RESIN Diana Setya Ningsih; Sri Fitriany; Herwanda; Agnesvida Respratidina
Dentika: Dental Journal Vol. 18 No. 1 (2014): Dentika Dental Journal
Publisher : TALENTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (119.753 KB) | DOI: 10.32734/dentika.v18i1.1943

Abstract

Cuka apel adalah minuman kesehatan yang terdiri atas fenol, asam dan komponen lainnya. Komposisi ini dapatmempengaruhi sifat resin akrilik heat cured. Resin akrilik heat cured secara klinis dapat digunakan sebagaibahan gigi tiruan. Resin akrilik dapat menyerap air sehingga menyebabkan ketidakstabilan dimensi basis gigitiruan. Penyerapan air dipengaruhi oleh jenis larutan dan lama perendaman. Tujuan penelitian ini adalah untukmengetahui efek lama perendaman resin akrilik heat cured dalam cuka apel terhadap perubahan dimensi.Sepuluh spesimen penelitian berbentuk disc dengan diameter 50 ± 1 mm dan ketebalan 0,5 ± 0,1 mmdikeringkan dalam desikator pada temperatur 37oC kemudian berat awal spesimen (W1) diukur menggunakankaliper (L) dan neraca analitik. Spesimen kemudian direndam dalam cuka apel pada 37oC selama 1, 3, 5 dan 7hari. Spesimen dikeringkan selama 15 detik dan berat spesimen tercatat (W2). Data dianalisis denganmenggunakan repeated Anova dan post hoc pairwaise comparisons. Hasil penelitian menunjukkan lamaperendaman di dalam cuka apel dapat menyebabkan perubahan dimensi resin akrilik heat cured secara bermakna(p< 0,05). Ada perbedaan yang bermakna antara perubahan dimensi setelah 1 hari dengan 3, 5, 7 hari (p< 0,05),tetapi tidak ada perbedaan yang bermakna antara 5 hari dengan 7 hari (p< 0,05). Sebagai kesimpulan, lamaperendaman dan jenis larutan (cuka apel) dapat menyebabkan perubahan dimensi pada resin akrilik heat cured.
Co-Authors Agnesvida Respratidina Cindy Moulinda Citra Feriana PUTRI Decky Jusiana Indrani Dewi Saputri Hafra AMINI Herwanda Iin Sundari Liana Rahmayani M Ridha Siregar Maya Putri Sinda Misra Hanum Nanda Elvira Soraya Prabowo Bomazdicahyo Ridha Rosmarna Dewi Siti Fadhilla Ananda Sri Fitriany Syarifah Masyithah Rizka Teuku Alfian Arbie Viona Dian Sari Viona Diansari Zulfan M ALIBASYAH Zulfan M. Alibasyah