Background: Composite resins are made from anorganic filler (mainly glass). It has major disadvantages on the production process, such as its abrasive properties, pollutant, non-renewable materials and high energy consumption during manufacturing. Therefore, alternative filler material was needed, especially organic material. The most potential organic material is natural fiber such as sisal. This study has manufactured composite resins with sisal that sized nano as their filler and we called composite nanosisal. Objective: This study aimed to determine the influence of amount of filler on the fractur resistance of nanosisal composite resin. Methods: This research used 20 sample. Sample sized 2 mm x 2mm x 25 mm (ISO-4049). The samples were divided into four groups with five samples each.Group A used filler with volume 60%, group B 65%, group C 70% and group D used nanofiller composite (3M ESPE, Z350). The sample was tested for fracture resistance using a universal testing machine. Non-parametric test of Kruskal Wallis was used for statistical analysis.
ABSTRAKPandemi Covid-19 mengakibatkan anak terbatas beraktifitas terutama di sekolah, sehingga kesehatan gigi dan mulut tidak dapat dipantau oleh dokter gigi melalui program kunjungan usaha kesehatan gigi sekolah (UKGS). Kesehatan gigi dan mulut (kesgilut) sangat penting untuk pertumbuhan dan perkembangan anak sehingga perlu dilakukan upaya promotif dan preventif. Tujuan kegiatan ini adalah membentuk kader kesgilut sehingga dapat mandiri melakukan upaya promotif dan preventif yaitu dengan memotivasi anak untuk memiliki kebiasaan baik serta tidak takut ke dokter gigi. Metode kegiatan ini adalah penyuluhan luring dan pemutaran audio visual dalam rangka membentuk kader kesehatan yang diselenggarakan di Taman Kanak-Kanak Pemberdayaan Kesejahteraan Keluarga 22 (TK PKK 22) Jotawang. Peserta berasal dari guru dan pengurus PKK sebanyak 6 orang. Evaluasi dilakukan pada seluruh peserta untuk mengetahui apakah terdapat perbedaan pengetahuan mengenai kesgilut sebelum dan sesudah dilakukan penyuluhan dan pelatihan. Hasil uji post test menunjukkan bahwa terdapat peningkatan pengetahuan masyarakat terhadap kesehatan gigi dan mulut yaitu 100% dibandingkan hasil pre test yaitu 65%. Implikasi kegiatan ini adalah terdapat peningkatan pengetahuan dan keterampilan guru serta pengurus PKK dalam menjaga kesgilut dengan baik dan benar. Kesimpulan kegiatan ini adalah pengetahuan dan keterampilan peserta meningkat setelah dilakukan penyuluhan dan pelatihan sehingga dapat diharapkan menjadi kader kesgilut di masa pandemi Covid-19. Kata kunci: preventif; promotif; kader kesgilut; PKK ABSTRACTThe Covid-19 pandemic has resulted in children being limited in activities, especially at school, so dentists cannot monitor dental and oral health through the school dental health business visit program (UKGS). Dental and oral health is essential for the growth and development of children, so it is necessary to make promotive and preventive efforts. This program aims to form dental and oral health cadres so that they can independently carry out promotive and preventive steps by motivating children to have good habits and not be afraid to go to the dentist. The method of this activity is offline counseling and audio-visual screenings to form health cadres held at the Kindergarten for Family Welfare Empowerment 22 (TK PKK 22) Jotawang. Participants came from teachers and PKK administrators, as many as six people. Results were pre and post-test on all participants to determine whether there were differences in knowledge about mental health problems before and after counseling and training. This activity implies increasing teachers' and PKK administrators' knowledge and skills in maintaining excellent and correct dental health problems. The conclusion is that the knowledge and skills of the participants increased after counseling and training were carried out so that they could be expected to become cadres of dental and oral health during the Covid-19 pandemic. Keywords: preventive; promotive; dental and oral health cadre; PKK
Resin komposit adalah bahan restorasi yang sering digunakan karena bersifat estetis tinggi. Filler anorganik seperti glass silica sebagai salah satu komposisi penting dalam resin komposit memiliki kelemahan berupa nondegradable, proses energinya tergantung pada bahan bakar fosil, serta emulsi polutannya tinggi dan membahayakan kesehatan dan lingkungan membuat filler alami sebagai bahan pengisi alternatif diperlukan. Salah satu serat alami yang dapat digunakan adalah serat sisal (Agave sisalana). Penelitian ini bertujuan untuk mengetahui perbedaan kekuatan geser antara semen resin komposit nanosisal 60% Wt dan semen resin nanofiller komposit. Penelitian ini merupakan penelitian eksperimental laboratoris. Serat sisal selanjutnya diubah menjadi ukuran nano. Nanosisal dicampur dengan Bis-GMA, UDMA, TEGDMA, dan Champhorquinone. Semen resin nanofiller komposit (AllCem Core) sebagai kontrol. Sampel berjumlah 10 dibagi menjadi dua kelompok. Gigi premolar dipreparasi tumpatan kelas V lalu ditumpat menggunakan dua bahan tersebut. Kekuatan geser sampl diuji menggunakan Universal Testing Machine (UTM). Analisis data menggunakan uji Independent Sample T-Test. Hasil menunjukkan semen resin nanosisal komposit 60% memiliki rata-rata kekuatan geser 13,10 MPa, dan semen resin nanofiller komposit 4,92 MPa. Analisis data menunjukkan perbedaan yang signifikan (p=0,000). Kekuatan geser semen resin nanosisal komposit 60% lebih besar dibandingkan dengan semen resin nanofiller komposit.
Background: One of the composite resin composition is inorganic filler. The production of inorganic filler materials was highly dependent on non-degradable, and nonrenewable fossil fuels. Therefore, natural fibers can be used as substitute for inorganic fillers. One that can be developed is sisal. Purpose: This study aimed to determine the effects of nanosisal filler volume on compressive strength of composite resin. Methods: In this study, composite resins with nano-sized sisal as filler were manufactured and labeled as nanosisal composites. This research processed sisal fibers into nano size and mixed them with Bis-GMA, UDMA, TEGDMA, Champhorquinone (Sigma Aldrich). Nanofiller composite (Z350 XT, 3M, ESPE) was utilized as a control. The 20 samples utilized were divided into 4 groups (each group containing five samples): Group A contained nanosisal composite of 60% filler volume, group B, nanosisal composite of 65% filler volume, group C, nanosisal composite of 70% filler volume and group D, nanofiller composite (Z350 XT, 3M, ESPE). Samples were 2 mm in diameter and 6 mm in height. The sample was tested for compressive strength using a universal testing machine (UTM). Data was analyzed by means of a Kruskal Wallis procedure. Results: The mean of the compressive strength of the nanosisal composite 60% was 16.80 MPa; the nanosisal composite 65% was 10.80 MPa, the nanosisal composite 70% was 7.20 MPa and the nanofiller composite was 7.40 MPa. There was a significant difference in data analysis (p = 0.033; p < 0.05). Conclusion: In this study, the filler volume of nanosisal influenced the compressive strength of a composite resin and the nanosisal filler volume was recomended at 60%.
Background: Dental composite composed of natural filler is a trend nowadays. Silk fiber, Bombyx mori L., is one of the natural fibers that have good microhardness (66 VHN) and has a potency to become a renewable natural filler. This research aimed to determine microhardness differences of silk fiber composite B. mori L., and nanofiller composite resin as a gold standard. Method: A quasi-experimental laboratory using composite resin with silk fiber B. mori L., as a natural filler; nanofiller composite Z350 XT flowable (3M ESPE, USA) as a positive control and no-filler composite as a negative control. Four cylindrical specimens per group were made (d=3mm, h=6mm). Microhardness tests were done with Vickers hardness tester (Shimadzu, Japan). Indentation of 100 grams for 20 seconds. Result: There were significant differences in the natural filler, nanofiller group (positive) control and no-filler composite (negative control). Based on the Kruskal Wallis test result, there was a significant difference in microhardness (p=0.024). The highest microhardness was nanofiller (115,2 VHN), silk fiber filler (109,4 VHN), and no-filler composite (32,2 VHN). Conclusion: Silk fiber Bombyx mori L., has shown the good potential of being a renewable natural filler (109,4 VHN) however lower than nanofiller composites. PENDAHULUANResin komposit sebagai bahan restorasi gigi memiliki banyak kelebihan diantaranya adalah estetika yaitu warna yang serupa dengan gigi sehingga menguntungkan pada restorasi gigi anterior. Sifat lainnya yaitu memiliki kekerasan yang cukup untuk menahan beban pengunyahan sehingga cocok untuk bahan restorasi gigi posterior. 1 Resin komposit terdiri atas tiga bahan penyusun utama; yaitu monomer, filler, coupling agent. Ketiga bahan ini disempurnakan dengan penambahan bahan lainnya seperti akselerator-inisiator. 2,3,4,5 Komponen filler pada umumnya berasal dari bahan inorganik seperti glass (kaca) dan silika. Bahan filler ditambahkan bahan lain untuk mendapatkan warna radiopak. Bahan-bahan tersebut diantaranya barium, boron, zink dan senyawa logam lainnya. 2,5 Klasifikasi resin komposit pada umumnya dibagi berdasarkan ukuran filler yang digunakan, sehingga dapat dibagi sebagai resin komposit macrofill, midfiller, minifiller, microfill, dan nanofill.Resin komposit yang berukuran nanofill memiliki
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