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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Ternak Jurnal Sains dan Teknologi Dentika Dental Journal Sainteknol : Jurnal Sains dan Teknologi Teknobuga : Jurnal Teknologi Busana dan Boga Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan ITEj (Information Technology Engineering Journals) Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dentistry Al-Wijdan : Journal of Islamic Education Studies MODELING: Jurnal Program Studi PGMI Biblio Couns : Jurnal Kajian Konseling dan Pendidikan Jurnal Agrotek Tropika Jurnal Agrotech Khairun Law Journal Tribakti: jurnal pemikiran keIslaman JURNAL PENDIDIKAN TAMBUSAI SJME (Supremum Journal of Mathematics Education) QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT UPEJ Unnes Physics Education Journal Journal of Innovative Science Education Jurnal Keperawatan dan Fisioterapi (JKF) Jurnal Kesmas dan Gizi (JKG) JURNAL FARMASIMED (JFM) Jurnal Teori dan Aplikasi Fisika Padjadjaran Journal of Dental Researchers and Students Majalah Farmasetika JIMEK : Jurnal Ilmiah Mahasiswa Ekonomi Islamika: Jurnal Keislaman dan Ilmu Pendidikan Majalah Ilmiah Warta Dharmawangsa RESEARCH AND DEVELOPMENT JOURNAL OF EDUCATION (RDJE) Jurnal Bakti Masyarakat Indonesia Jurnal Mu'allim Jurnal Al-Irsyad: Jurnal Bimbingan Konseling Islam Aksara: Jurnal Ilmiah Pendidikan Bahasa dan Sastra Indonesia Agroswagati : Jurnal Agronomi Edu Dharma Journal: Jurnal penelitian dan pengabdian masyarakat Agricultural Science Bestari: Jurnal Studi Pendidikan Islam Rekayasa: Jurnal Teknik Sipil KHAIRUN LAW JOURNAL Jurnal Iso DEVELOPMENT : Journal of Community Engagement Pedagogy : Jurnal Pendidikan Matematika Education and Counseling Journal Formosa Journal of Sustainable Research (FJSR) NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Takuana: Jurnal Pendidikan, Sains, dan Humaniora Jurnal Pengabdian Sains dan Humaniora Jurnal Ilmiah Sistem Informasi dan Ilmu Komputer Jurnal Natural e_Jurnal Ilmiah Riset Akuntansi Jurnal Pengmas Kestra (JPK) Kartika: Jurnal Studi Keislaman Indonesian Journal of Advanced Research (IJAR) Madani: Multidisciplinary Scientific Journal Syakhshiyyah Jurnal Hukum Keluarga Islam HIKMAH: Jurnal Ilmu Dakwah dan Komunikasi Islam Jurnal Serambi Ekonomi dan Bisnis Lontar Physics Today Jurnal Akselerasi Merdeka Belajar dalam Pengabdian Orientasi Masyarakat (Jurnal AMPOEN) Bagimu Negeri : Jurnal Pengabdian Kepada Masyarakat Journal of Economic, Management and Entrepreneurship Jurnal Pengabdian Kepada Masyarakat Bangun Cipta, Rasa, & Karsa (Jurnal PKM BATASA) Jurnal Nakula: Pusat Ilmu Pendidikan, Bahasa Dan Ilmu Sosial Prosiding Seminar Nasional PPG Universitas Mulawarman Jurnal Dirosah Islamiyah Gudang Jurnal Pengabdian Masyarakat Journal of Innovative and Creativity Algebra Revorma: Jurnal Pendidikan dan Pemikiran Prosiding Seminar Nasional Unimus Journal Of Agriculture Sciences (Agrosci) Jurnal Pengabdian Masyarakat Ilmu Kesehatan Tribakti: Jurnal Pemikiran Keislaman Jurnal Pengabdian Masyarakat Profesi Guru UPEJ : Unnes Physics Education Journal Jurnal Dharma Indonesia Jurnal Pendidikan Guru Profesional Ar-Rasyid: Jurnal Publikasi Penelitian Ilmiah EDUKASI : Jurnal Penelitian dan Artikel Pendidikan SJME (Supremum Journal of Mathematics Education) Sosaintek: Jurnal Ilmu Sosial Sains dan Teknologi
Siti Wahyuni
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Analisis dan Perancangan Sistem Informasi Jasa Titip Berbasis Web: TitipGo Dwi Resty Kartika; Sinta Febriyanti; Siti Wahyuni
Jurnal ilmiah Sistem Informasi dan Ilmu Komputer Vol. 5 No. 1 (2025): Jurnal ilmiah Sistem Informasi dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juisik.v5i1.1419

Abstract

The design of a web-based information system addresses issues in proxy shopping services (jastip), which are often conducted manually via social media and prone to fraud. This study introduces Titipgo, a platform enabling secure, efficient, and structured transactions. The methodology includes PIECES analysis to identify system weaknesses and UML modeling (use case and activity diagrams) for design. The system supports four roles: admin, proxy shopper (jastiper), buyer, and owner, with core features like account management, product catalog, order tracking, payment processing, and reviews. A responsive UI was prototyped in Figma, tailored for each user role. Results confirm Titipgo enhances professionalism and trust in proxy shopping operations. This system sets a foundation for improving security and efficiency in collaborative e-business.
The effect of virgin nylon addition into recycled nylon on the fatigue strength of thermoplastic nylon denture base Wahyuni, Siti; Ravichanthiran, Jeewena
Padjadjaran Journal of Dentistry Vol 32, No 1 (2020): March 2020
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol32no1.23903

Abstract

Introduction: Thermoplastic nylon denture base is processed through injection molding process. This manipulation technique produces non-biodegradable nylon wastes which have to be recycled. Recycling of nylon wastes is feasible due to the linear molecular structure of thermoplastic nylon. This study aimed to know the effect of adding virgin nylon into recycled nylon on the fatigue strength of thermoplastic nylon denture base. Methods: This research was experimental laboratory research using 27 samples of thermoplastic nylon with three different groups (100% virgin nylon, 100% recycled nylon and combination of 60% of virgin nylon with 40% of recycled nylon) using injection molding technique. The test results were analyzed using one-way ANOVA test to know the differences in the mean value of the fatigue strength of each group and LSD test to know the effect of adding 60% of virgin nylon into 40% of recycled nylon. Resuts: Results showed significant results (p < 0,05), as well as LSD test that showed there is effect of adding 60% of virgin nylon into 40% of recycled nylon on the fatigue strength of thermoplastic nylon denture base. Conclusion: The combination of 60% of virgin nylon with 40% of recycled nylon showed higher fatigue strength than the recycled nylon.
Pengembangan Media Pembelajaran Fisika Mobile Learning Berbasis STEM-PBL untuk Meningkatkan Keterampilan Berpikir Kritis dan Kolaborasi Wahyuningsih, Diana Arin; Marwoto, Putut; Wahyuni, Siti
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23639

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran fisika berbasis mobile learning dengan pendekatan STEM-PBL guna meningkatkan kemampuan berpikir kritis dan kolaborasi siswa kelas XI pada pokok bahasan termodinamika. Penelitian ini menggunakan metode pengembangan yang diadaptasi dari model ADDIE, yang terdiri dari lima tahap, yaitu Analisis, Desain, Pengembangan, Implementasi, dan Evaluasi. Proses pengembangan dilakukan untuk menghasilkan dan mengevaluasi kelayakan dan efektivitas media pembelajaran. Uji coba dilakukan dalam dua tahap, yaitu uji coba skala kecil dan uji coba skala besar. Hasil validasi menunjukkan bahwa media tersebut masuk dalam kategori sangat layak. Efektivitas produk dianalisis menggunakan uji N-Gain, dengan hasil perolehan skor gain sebesar 0,59 pada uji coba skala kecil dan 0,62 pada uji coba skala besar, keduanya tergolong efektifitas sedang. Selain itu, aktivitas pembelajaran kolaboratif menunjukkan peningkatan dalam pengambilan keputusan bersama, penyelesaian tugas, menghargai pendapat orang lain, dan berbagi ide. Berdasarkan hasil tersebut, media pembelajaran fisika mobile yang dikembangkan dengan pendekatan STEM (Science, Technology, Engineering, and Mathematics) dinilai layak digunakan.Kata kunci: STEM-PBL, Keterampilan Berpikir Kritis, Kolaborasi Abstract. This study aims to develop a mobile learning-based physics instructional media using the STEM-PBL approach to enhance the critical thinking and collaboration skills of Grade XI students on the topic of thermodynamics. The research employed a development method adapted from the ADDIE model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The development process was carried out to produce and evaluate the feasibility and effectiveness of the learning media. The trial was conducted in two stages: small-scale and large-scale testing. The validation results indicated that the media is categorized as highly feasible. The product's effectiveness was analyzed using the N-Gain test, with results showing a gain score of 0.59 in the small-scale trial and 0.62 in the large-scale trial, both classified as moderate effectiveness. Furthermore, collaborative learning activities showed improvements in joint decision-making, task completion, respecting others’ opinions, and sharing ideas. Based on the results, the mobile physics learning media developed with the STEM (Science, Technology, Engineering, and Mathematics) approach is considered feasible and suitable for classroom use.Keywords: STEM-PBL, Critical Thinking, Collaboration
Studi Korelasi Konsep Diri Dengan Keenderungan Perilaku Bullying Wahyuni, Siti
Biblio Couns : Jurnal Kajian Konseling dan Pendidikan Vol 8, No 2 (2025): Juli 2025
Publisher : Program Studi Bimbingan dan Konseling FKIP UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/bibliocouns.v8i2.24281

Abstract

his study aims to determine the relationship between self-concept and the tendencyof bullying behavior in SMP Negeri 46 Palembang. This study uses quantitative methods withcorrelational methods. The population in this study were all VIII grade students of SMP Negeri 46Palembang, totaling 385 students, with a research sample of 100 samples. Data collection wastaken using simple random sampling technique. The data collection instrument was aquestionnaire that measured self-concept and bullying behavior tendencies. Data analysis wascarried out using the Pearson Product-Moment correlation test. The results showed that the levelof self-concept of students was in the moderate category with a percentage of 44% 44 students,while the level of bullying behavior tendencies was in the moderate category with a percentageof 36% 36 students. The correlation coefficient obtained shows a significant value of 0.267 0.05and a calculated r value of 0.112 r table 0.194, so it is concluded that there is no significantrelationship between self-concept and the tendency of bullying behavior.
Pengawasan Penertiban Tiang Tumpu Fiber Optic Oleh Satuan Polisi Pamong Praja Kota Pekanbaru Wahyuni, Siti; Ananda, Fajriani
Algebra : Jurnal Pendidikan, Sosial dan Sains Vol 5 No 3 (2025): ALGEBRA : JURNAL PENDIDIKAN, SOSIAL DAN SAINS
Publisher : Yayasan Amanah Nur Aman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58432/algebra.v5i3.1453

Abstract

The unauthorized installation of fiber optic poles in the city of Pekanbaru has had a negative impact on safety, aesthetics, and urban order. Enforcement by the Pekanbaru Municipal Police, which is responsible for addressing these violations, has not been optimal. This study aims to analyze the implementation of enforcement by the Satpol PP in the context of monitoring violations related to the installation of fiber optic support poles. Using a qualitative approach with a phenomenological method, this study identifies four monitoring indicators, as outlined by Jones and George: setting standards and targets, measuring performance, comparing results with these standards, and taking corrective actions. The results show that the establishment of standards and targets is not yet specific, performance measurement is not yet measurable, comparison of results is not systematic, and corrective actions are sporadic. Enforcement remains reactive and dependent on community reports, rather than being based on a structured work plan. The recommendation of this study is the need for a more structured, data-driven, and consistent enforcement system to create equitable public order.
Hubungan antara Penguasaan Mufradat dengan Kemampuan Menerjemah Pada Mata Pelajaran Bahasa Arab Siswa MTs Darul Ulum Rembang Pasuruan Nurrokhmatulloh; Wahyuni, Siti; Syaifullah
Mu'allim Vol 7 No 2 (2025): JULI 2025
Publisher : Fakultas Agama Islam Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/muallim.v7i2.6157

Abstract

Arabic Vocabulary Ability is part of the ability to master a language component that aims to form sentences in Arabic. The purpose of the problem in this study is to determine whether there is a correlation between Vocabulary mastery and translation ability in Arabic subjects for class VIII students of MTs Darul Ulum Rembang Pasuruan. From the mastery of Vocabulary and the ability to translate are interrelated to the achievement of Arabic language learning. Based on the conceptual framework, both have indicators and outcomes that affect Arabic language learning. So there is a significant influence between Vocabulary mastery and translation ability in Arabic subjects. This type of research uses quantitative research with a pre-experimental method. The sampling technique is nonprobability with a purposive sampling technique. The population in this study were all class VIII students totaling 20 people. Based on the results of the research that has been conducted, there is a significant correlation between vocabulary mastery and translation ability with a significance value of 0.000 <0.05, so the hypothesis is that Ho is rejected and Ha is accepted, meaning that there is a correlation between vocabulary mastery and translation ability in the Arabic language subject of class VIII students of MTs Darul Ulum Rembang Pasuruan
The Effect of Nitrogen Fertilizer Dosage on The Growth and Yield of Balsam (Impatiens balsamina L.) Tri Diana; Riski Nurfadillah; Helda Valentinadia; Siti Wahyuni
Agricultural Science Vol. 9 No. 1 (2025): September
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v9i1.175

Abstract

This study aims to determine the effect of various doses of nitrogen fertilizer on the growth and yield of impatiens (Impatiens balsamina L.). The study was conducted in Bandorasa Village, Cilimus District, Kuningan Regency, using a randomized block design (RBD) with seven treatments of nitrogen fertilizer doses, ranging from 1 g to 4 g of urea per polybag. The parameters observed included root length, plant height, number of leaves, leaf area, net assimilation rate, plant growth rate, chlorophyll content, number of flowers, fresh flower weight, and anthocyanin and carotenoid content. The results showed that nitrogen fertilizer application had a significant effect on several parameters, particularly plant height, number and area of leaves, plant growth rate, and number and weight of flowers. The 2.5 g/polybag dose treatment yielded the best results for most parameters, while excessively high doses tended to reduce growth and flowering efficiency. This study concluded that applying nitrogen fertilizer at the appropriate dose is crucial for optimizing the growth and yield of Impatiens balsamina L.
Response of Sansevieria trifasciata cuttings On the Soaking Time of Vigna radiata Sprouts Extract Irawati Utami, Inayah; Siti Wahyuni
Agricultural Science Vol. 9 No. 1 (2025): September
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v9i1.176

Abstract

This study aimed to determine the effect of soaking time of mung bean (Vigna radiata) sprout extract on the growth of snake plant (Sansevieria trifasciata) leaf cuttings. The study was conducted at the Faculty of Agriculture's screen house, UGJ Cirebon used a Completely Randomized Design (CRD) with five treatments of immersion duration (10, 20, 30, 40, and 50 minutes) each repeated five times. The parameters observed included root length, time to shoot emergence, number of shoots, leaf thickness, chlorophyll content, and plant growth rate. The analysis results showed that the immersion duration significantly affected root length, initial shoot emergence, and number of shoots, especially at 40 and 60 days after planting. The best treatment was obtained at 30 minutes of immersion which consistently produced the most optimal root and shoot growth. Meanwhile, there was no significant effect on leaf thickness, chlorophyll content, and plant growth rate in all treatments. The phytohormone content in mung bean sprout extract such as auxin, cytokinin, and gibberellin is thought to play a role in stimulating root and shoot growth in the early phase of snake plant cutting propagation. This study proves that natural PGR from mung bean sprouts has the potential as an environmentally friendly alternative in supporting the vegetative propagation of ornamental plants.
Perbedaan arah sudut dan jarak penyinaran pada ketepatan marginal mahkota sementara resin komposit Urethane Dimethacryla: Studi eksperimental Rafi, Mohamad Afifuddin; Andryas, Ika; Wahyuni, Siti
Padjadjaran Journal of Dental Researchers and Students Vol 9, No 2 (2025): Juni 2025
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjdrs.v9i2.61936

Abstract

ABSTRAKPendahuluan: Seiring dengan perkembangan teknologi, bahan mahkota sementara berbasis resin komposit dapat dipolimerisasi dengan aktivasi sinar. Aktivasi dengan arah sudut dan jarak penyinaran yang tidak tepat dapat meningkatkan terjadinya celah dan ketidaktepatan marginal. Hal ini memegang peranan penting dalam penyinaran bahan mahkota sementara sehingga diperoleh ketepatan marginal yang baik. Penelitian ini bertujuan untuk menganalisis perbedaan arah sudut dan jarak penyinaran terhadap ketepatan marginal bahan mahkota sementara resin komposit urethane dimethacrylate (UDMA) polimerisasi sinar. Metode: 40 sampel resin komposit light-cured disebar pada 4 kelompok (10 sampel per kelompok). Kelompok A disinari dengan LED light cure unit (B.G Light®, Bluedent, Bulgaria.)) pada jarak 1 mm dan arah sinar 45°. Kelompok B disinari pada jarak 3 mm dan arah sinar 45°. Kelompok C disinari dengan jarak 1 mm dan arah sinar 90°. Kelompok D disinari dengan jarak 3 mm dan arah sinar 90°. Sampel direndam dalam air destilasi selama 7 hari agar sesuai dengan kondisi pH rongga mulut dan dilakukan pengukuran celah marginal menggunakan stereomikroskop (Zeiss Stereo Discovery®. V12, Germany). Analisis univariat dilakukan untuk mengetahui nilai  rerata dan standar deviasi ketepatan marginal. Uji Anova satu arah dilakukan untuk menganalisis perbedaan arah sudut dan jarak penyinaran terhadap ketepatan marginal mahkota sementara resin komposit Urethane Dimethacrylate. Hasil:  Hasil uji anova menunjukkan bahwa pada seluruh kelompok yang di uji,  terdapat perbedaan celah marginal yang signifikan pada pada sisi bukal dengan nilai p = 0,026. Uji Post Hoc menunjukkan perbedaan celah marginal yang bermakna pada kelompok C dengan kelompok D dengan nilai p = 0,005. Simpulan: Berdasarkan uji Post Hoc menunjukkan bahwa kelompok A (arah sudut penyinaran 45° dan jarak 1 mm) hanya menunjukkan perbedaan terhadap kelompok D (arah sudut penyinaran 90° dan jarak 3 mm) dengan nilai p=0,019 dan kelompok C (arah sudut penyinaran 90° dan jarak 1 mm) memiliki perbedaan celah marginal yang signifikan dengan kelompok D (arah sudut penyinaran 90° dan jarak 3 mm) dengan nilai p=0,005. Arah sudut penyinaran  90° dan jarak 1 mm  lebih direkomendasikan untuk mendapatkan penyinaran maksimal agar mahkota sementara dapat terpolimerisasi dengan baik.KATA KUNCI: Arah Sudut, Jarak, Ketepatan Marginal, Mahkota Sementara, Urethane DimethacrylateEffect of irradiation direction and distance on marginal fit of provisional crown material: Study experimentalABSTRACTIntroduction: With the advancement of technology, provisional crown materials based on composite resin can be polymerized through light activation. Inaccurate angulation and distance of light irradiation may increase the occurrence of gaps and marginal discrepancies. This factor plays an important role in ensuring optimal marginal accuracy during the curing of provisional crowns. This study aimed to analyze the effect of different irradiation angles and distances on the marginal accuracy of light-cured urethane dimethacrylate (UDMA) composite resin provisional crowns. Methods: Forty light-cured composite resin samples were divided into four groups (10 samples each). Group A was irradiated with an LED light-curing unit (B.G Light®, Bluedent, Bulgaria) at a distance of 1 mm and a 45° angle. Group B was irradiated at a distance of 3 mm and a 45° angle. Group C was irradiated at a distance of 1 mm and a 90° angle. Group D was irradiated at a distance of 3 mm and a 90° angle. Samples were immersed in distilled water for 7 days to simulate the oral cavity’s pH conditions, followed by marginal gap measurement using a stereomicroscope (Zeiss Stereo Discovery® V12, Germany). Univariate analysis was used to determine the mean and standard deviation of marginal accuracy, and one-way ANOVA was applied to evaluate differences between irradiation angles and distances. Results: One-way ANOVA revealed significant differences in marginal gaps on the buccal side among all tested groups (p = 0.026). Post Hoc analysis indicated a significant difference between Group C and Group D (p = 0.005). Conclusion: Post Hoc testing showed that Group A (45° angle, 1 mm distance) differed only from Group D (90° angle, 3 mm distance) (p = 0.019), while Group C (90° angle, 1 mm distance) showed a significant difference from Group D (p = 0.005). An irradiation angle of 90° at a distance of 1 mm is recommended to achieve optimal polymerization and marginal adaptation of provisional crowns.KEYWORDS: Irradiation angle, Distance, Marginal accuracy, Provisional crown, Urethane dimethacrylate
Perbedaan efek penambahan silika dari abu cangkang kelapa sawit terhadap kekasaran permukaan basis gigi tiruan resin akrilik polimerisasi panas: Studi eksperimental Nainggolan, Rahel Stevani; Wahyuni, Siti
Padjadjaran Journal of Dental Researchers and Students Vol 9, No 2 (2025): Juni 2025
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjdrs.v9i2.63268

Abstract

ABSTRAKPendahuluan: Resin akrilik polimerisasi panas merupakan bahan basis gigi tiruan yang sering digunakan karena memiliki sifat estetis yang baik, mudah direparasi dan tidak toksik. Namun, juga memiliki sifat mekanis yang rendah adalah kekasaran permukaan, sehingga diperlukan penambahan bahan penguat pada resin akrilik polimerisasi panas, yaitu silika dari abu cangkang kelapa sawit. Penelitian ini bertujuan untuk menganalisis perbedaan efek penambahan silika 2% dan 5% dari abu cangkang kelapa sawit pada basis gigi tiruan resin akrilik polimerisasi panas terhadap kekasaran permukaan. Metode: Jenis penelitian ini adalah eksperimental laboratorium yang dilakukan pada sampel basis gigi tiruan resin akrilik polimerisasi panas yang ditambahkan bahan penguat silika 2% dan 5%. Dengan sampel (65x10x2,5) mm berdasarkan ISO 1567. Total sampel sebanyak 30 buah dibagi menjadi 3 kelompok, kelompok tanpa silika dan kelompok B, C; kelompok dengan penambahan silika konsentrasi 2% dan 5%. Uji kekasaran permukaan sampel dilakukan menggunakan Profilometer (Mitutoyo SURFTEST SJ-210, Japan). Sampel dianalisis dengan uji one way Anova dan LSD. Hasil: uji ANOVA menunjukkan adanya pengaruh penambahan silika 2% dan 5% pada kekasaran permukaan basis gigi tiruan resin akrilik polimerisasi panas, dengan nilai p=0,001 (p<0,05). Uji LSD menunjukkan adanya  perbedaan bermakna antara kelompok kontrol dengan kelompok  penambahan silika 2%, antara kelompok kontrol dengan kelompok penambahan silika 5%, serta antara kelompok penambahan silika 2% dan 5%, dengan nilai p=0,001 (p<0,005).  Simpulan: Terdapat perbedaan nilai kekasaran permukaan pada bahan basis gigi tiruan RAPP tanpa atau dengan penambahan silika 2% dan 5%KATA KUNCI: resin akrilik polimerisasi panas, abu cangkang kelapa sawit, silika, kekasaran permukaanThe Effect of the Addition of Silica from Palm Shell Ash to the surface roughness of heat-polymerized acrylic resin Denture Base: Study experimentalABSTRACTIntroduction: Heat polymerized acrylic resin is one of the most frequently used for denture base materials because it has good aesthetic properties, easy to repair and  non-toxic. However, it also has low mechanical properties such as surface roughness, so modification is needed by adding a reinforcing material to the heat polymerized acrylic resin in the form of silica from palm shell ash. This aims of this study is to analyze the effect of adding 2% and 5% silica from palm shell ash to the heat polymerized acrylic resin denture base on its surface roughness. Methods: This type of research is a laboratory study with a sample’s size of 65x10x2.5 mm; based on ISO 1567. A total of 30 samples were divided into 3 groups, i.e.  group A (without reinforcing materials) as a control group and group B and C were group silica addition with concentrations of 2% and 5%. Surface roughness tests on the samples were conducted using  a Profilometer (Mitutoyo SURFTEST SJ-210, Japan) The samples were analyzed by one way Anova and LSD tests. Results: ANOVA test results that there is an effect of adding 2% and 5% silica from palm shell ash on the surface roughness of heat polymerized acrylic resin dentures; with a value of p = 0.001 (p <0.05). The results of the LSD test  showed a significant difference between group control (without the addition of silica) and 2% silica, between control group with the addition of 5% silica, and between group adding 2% and 5% silica; with a value of p = 0.001 (p <0.005). Conclusion: There is a difference in surface roughness values in the denture base material RAPP with or without the addition of 2% and 5% silica.KEY WORDS: heat-polymerized acrylic resin, silica, palm shell ash, surface roughness
Co-Authors Abrori, Abrori Adillah, Afif Aditya Marianti Agustiar, Riza Dwi Ahmad Joeffrey, Iffa Iessyahura Ahmad, Arief Rosyidan Ajeng Zulfa Salsabila Akbar Dafi Isworo Putra Al Hakim, M. Faris Aldan Nugraha Alghifari, Jerico Rizky Almasdi Syahza Alsya Yulkha Putri Alya Karima Amalia, Safitri Nurul Amanda, Belia Putri Amesta, Venna Restuesa Anggraeni, Milka Annista, Ranti Apriani, Chairunnisa Aprilia Naumi, Sandra Ari Wibowo, Prasetio Ariadi Santoso Arief Budhiman Aritonang, Halimatutsahdia AROFATUL HIDAYAH Asmaroni, Dedy Asrianda Asrianda Auliana, Amirah Najla Aulya, Stevy Puspa Bagas Hamdanirahman Baharuddin, Muhammad Rusli Bambang Eko Susilo Baskoro Wicaksono, Baskoro Basriannor, Agus Benny Prasetiya Br Sitepu, Elisha Angela Br Situmorang, Novidawati Budiawan, Raden Yusuf Sidiq Budirokhman , Dodi Budirokhman, Dodi Cahyo, Ismail Dwi Christiyanti Aprinastuti, Christiyanti Dahlia Fisher Dalimunthe, Juliana Darsono, Teguh Deden Defitasari, Wahyu Desnaranti, Laila Devi Tri Herlanda Dian Herdiana Dwi Resty Kartika Eddy Dahar Effendi, Bella Astria Elin Agni Nurul Qolbi Ellianawati, Ellianawati Endang Sujana Engol, Selviana Fajriani Ananda Faradisa, Irsya Faridha, Ghina Fathoni, Muhammad Arif Fathoni, Muhammad Nur Fitriyati, Devi Ghaziyah Rukhiyah Shofa Gunawan, Ayu Sabrina Gunawan, Elvira Tiara Gurum Ahmad Pauzi Hafit Nuroswandi Handayani, Santy Handi Burhanuddin Hapsari, Fadjriah Hapsari, Fadjriah Harry Agusnar Hasanah Fitria Hayatun Sabariah Helda Valentinadia Herawati, Mirna Hidayanti, Dina Ulfa Hidayat, Nandang Hidayat, Rais Hilmanul Hamdi Muhammad Ika Andryas Ika Septiana Indraswari, Anisa Wulan Iramdan, Iramdan Irawati Utami, Inayah Irnawati Irnawati Isa Akhlis Isrok’atun, Isrok’atun Isti Mulyawati Istifadah, Shovi Yatul jaka rukmana Jati, Utami Joko Saefan Jumarniati, Jumarniati Juniawaty, Rudeva Juriah, Siti Karimah, Zianatul Karmayanti Kartika Dwi Arisanti Khuzairi, Hafidz Al Kodasi, Cintya Lambang Subagiyo Lubis, Basyariah M, Magdalena M. Cholid Mawardi M. Fachri Adnan M. Rasya Anugrah Putra Rafa M. Rizky Ferdiansyah Mahfuddin, Muhammad Fiqhi Mala, Pingki Hidayatul Mamudah, Amelia Husnul Manurung, Lengsi Marbun, Romauli Anna marlia, rina Maulana Maulana, Maulana Maulana, Faith Miftah Maulidiyah, Nur Laila Mayashofa Rhoyachin Melga Syam, Anni'mah Agpabratasino Mirna Herawati Mubarak , Adham Muh. Akhsan Akib, Muh. Akhsan Muhammad Rafi Akmal Muhammad Zulkarnain Muhammd Iqbal Mulana Muqoyyanah Nainggolan, Hotdoriska Nainggolan, Rahel Stevani Nasution, Assajdah Nasution, Aulia Nadhira Rayendra Nava Prasetya Nawia, Femy Nazahah Ulin Nuha Niasari Silaen, Ayu Renta Noor Shodiq Askandar Novia Fadilah Akbar Nuni Widiarti Nurdiyanto Nurdiyanto, Nurdiyanto Nuriawati, Ellyta Nurisman, Husain Nurrokhmatulloh, Nurrokhmatulloh Parinduri, Anggi Isnani Prabowo, Hanggono Arie Pradana, Benny Prasetyo, Meilina Pratiwi, Fadilla Cikal puspitasari, feny Putra, Ferdy Pratama Putradavi, Muhammad Farhans Putri Aulia Azahra Putri, Novita Delima Putut Marwoto Rafi, Mohamad Afifuddin Rafly, Muhammad Rahayu, Susi Afrianti Rahayu, Winarni Rahim Nasution, Filza Annisa Rahma, Amalia Nur Rakhmawati Rakhmawati Ravichanthiran, Jeewena Restu Ayu Eka Pustika Dewi Retno Prayudyaningsih Rifa Alfiatu Rohmatin Rifky Rangga Arnawa Rini, Nur Widya Riski Nurfadillah Ritonga, Saidah Riyono, Bado Rodhiyah, Afsika Rofi'ah, Siti Hidayatur Rofingah, Dwi Kurniati Salma Aulia Rahmatillah Sari, Dian Wulan Sari, Virgania satria wiguna Selawati, Selawati Setiyanda, Karista Gadis Shauti, Fadhil Ramadhan Sianipar, Sinta Sihombing, Yanna Sihombing, Yanna Rotua Simorangkir, Zefanya Cornelia Sinambela, Pretty Novia Sinta Febriyanti Situmorang, Novidawati Br Sri Sukaesih Suarman Suarman Suci Wulandari Suhada, Hadisfied Rama Suhendra Suhendra Sujacka Retno Sulhadi Sulis Setiawati Syaifullah Syamsiar Zamzam Syatrawati Tamin, Haslinda Z Tarigan, Slamat Tarsis, Joanna Tania Teguh Sarwo Aji Titis Dwi Nurhannisa Tri Diana Trida Ridho Fariz Umi Trisnaningsih Veronica Angelia W Warsito Wachdijono Wachdijono Wachdijono, Wachdijono Wahyu Hardyanto Wahyuningsih, Diana Arin Wardatun, Putri Alfia Wijaya Wijaya Wildani, Andi Amalia Winarni Rahayu Wiyandika, Reza Yuanita, Dianis Izzatul Zaenal Arifin Zakia Adillah, Arwa Ghina Zeinora Zeinora, Zeinora Zidni Ilman, Nida Rezkia