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All Journal Padjadjaran Journal of Dentistry PREPOTIF : Jurnal Kesehatan Masyarakat Jurnal Material Kedokteran Gigi Journal of Innovation Research and Knowledge Joong-Ki
Gema Gempita
Fakultas Kedokteran Gigi Universitas Padjadjaran
Religion Humanities Biochemistry, Genetics & Molecular Biology Dentistry Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences

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Synthesis of mesh-shaped calcia partially stabilized zirconia using eggshell membrane template as filler composite Gempita, Gema; Hasratiningsih, Zulia; Subrata, Gantini; Purwasasmita, Bambang Sunendar
Padjadjaran Journal of Dentistry Vol 29, No 2 (2017): July
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.837 KB) | DOI: 10.24198/pjd.vol29no2.13603

Abstract

Introduction: This experiment was conducted experimentally to synthesize Calcia Partially Stabilized Zirconia (Ca-PSZ) by sol-gel method using eggshell membrane template as a composite filler. The eggshell membrane was used to produce a mesh shaped structure, which hopefully can improve the mechanical properties of the composite. Method: Ca-PSZ filler was synthesized from ZrOCl2 precursor and Ca(NO3)2 stabilizer with a 24 hours immersion time. Ca-PSZ of synthesis then mixed with the resin matrix to test its composite hardness. Result: The EDS characterization results suggested that the sample contained elements of zirconia, calcium, and oxygen. Whereas, the XRD characterization identified that crystal structures that formed in the sample were nano scale tetragonal. Characterization of SEM showed Ca-PSZ with mesh structured. The average composite hardness value was 15.79 VHN. Conclusion: The composites with Ca-PSZ-synthesized filler could be prepared and its hardness value was higher than the composite with Ca-PSZ filler in spherical particles, but the hardness was still below the composite on the market.
Benang Jahit Operasi dalam Bidang Kedokteran Gigi Gema Gempita; Nina Djustiana
Jurnal Material Kedokteran Gigi Vol 10 No 2 (2021): JMKG Vol 10 No 2 September 2021
Publisher : Ikatan Peminat Ilmu Material dan Alat Kedokteran Gigi (IPAMAGI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jmkg.v10i2.984

Abstract

The surgical sutures is one of the main techniques used for wound closure. In the oral cavity, suture are often used after procedures such as tooth extraction, implant surgery, and various oral and periodontal treatment procedures. The purpose of this article is to provide knowledge to readers, especially dentists and academics regarding the function of sutures, general characteristics, as well as various materials of sutures. Suture which are used in dentistry are different from suture used in other areas of the body due to saliva, high vascularity, and other functions in oral cavity such as, speaking, chewing and swallowing. The ideal surgical suture depends on the type of surgery, the location of the wound, and the general condition of the patient. Suture threads that do not match the conditions of the surgical wound and the patient's condition will prolong the healing process and can cause infection. By improving the knowledge about surgical suture, dentists are expected to be able to choose the most appropriate surgical suture based on the patient's condition. In academic terms, by knowing the various choices of surgical suture materials, academics are expected to be able to know the advantages and disadvantages of the sutures which can also inspire them to improve the quality of existing sutures.
Synthesis of mesh-shaped calcia partially stabilized zirconia using eggshell membrane template as filler composite Gempita, Gema; Hasratiningsih, Zulia; Subrata, Gantini; Purwasasmita, Bambang Sunendar
Padjadjaran Journal of Dentistry Vol 29, No 2 (2017): July 2017
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.837 KB) | DOI: 10.24198/pjd.vol29no2.13603

Abstract

Introduction: This experiment was conducted experimentally to synthesize Calcia Partially Stabilized Zirconia (Ca-PSZ) by sol-gel method using eggshell membrane template as a composite filler. The eggshell membrane was used to produce a mesh shaped structure, which hopefully can improve the mechanical properties of the composite. Method: Ca-PSZ filler was synthesized from ZrOCl2 precursor and Ca(NO3)2 stabilizer with a 24 hours immersion time. Ca-PSZ of synthesis then mixed with the resin matrix to test its composite hardness. Result: The EDS characterization results suggested that the sample contained elements of zirconia, calcium, and oxygen. Whereas, the XRD characterization identified that crystal structures that formed in the sample were nano scale tetragonal. Characterization of SEM showed Ca-PSZ with mesh structured. The average composite hardness value was 15.79 VHN. Conclusion: The composites with Ca-PSZ-synthesized filler could be prepared and its hardness value was higher than the composite with Ca-PSZ filler in spherical particles, but the hardness was still below the composite on the market.
PENDEKATAN BIOMIMETIK PADA BIDANG KEDOKTERAN GIGI: TINJAUAN PUSTAKA Gempita, Gema; Febrida, Renny
PREPOTIF : JURNAL KESEHATAN MASYARAKAT Vol. 9 No. 2 (2025): AGUSTUS 2025
Publisher : Universitas Pahlawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/prepotif.v9i2.47522

Abstract

Tinjauan pustaka ini membahas pendekatan biomimetik dalam bidang kedokteran gigi yang bertujuan untuk meniru dan menggantikan struktur alami pada area kraniofasial. Penelitian yang intensif selama beberapa dekade telah menghasilkan pengembangan biomaterial dan teknik inovatif untuk mendukung proses tersebut. Temuan menunjukkan bahwa material berbasis alami atau yang menyerupai struktur biologis memiliki hasil klinis yang lebih baik dan potensi lebih tinggi untuk aplikasi klinis. Oleh karena itu, pengembangan biomaterial biomimetik memerlukan pendekatan interdisipliner yang melibatkan kedokteran, bioteknologi, dan ilmu komputasi. Di masa depan, pengembangan jaringan gigi yang sepenuhnya diregenerasi, seperti enamel, dentin, pulpa, dan sementum, dengan karakteristik nanostruktur yang menyerupai jaringan gigi alami, menjadi salah satu harapan utama dalam kemajuan bidang ini.
Gambaran Pengetahuan Kader Tentang Stunting di Wilayah Kerja Puskesmas Rusunawa Renny Febrida; Muhammad Kevin Ardhiwilaga; Faza Nadzry Putri Latuconsina; Haydar Alfarabi Sumadinata; Marsha Afifah Yusuf; Natha Nuel Silalahi; Gema Gempita
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 5 No. 1: November 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v5i1.11837

Abstract

Penelitian ini bertujuan untuk mengevaluasi efektivitas kegiatan penyuluhan dalam meningkatkan pemahaman kader posyandu mengenai stunting dan Perilaku Hidup Bersih dan Sehat (PHBS). Hasil penelitian menunjukkan adanya peningkatan signifikan pada nilai rata-rata pre-test sebesar 8,68 menjadi 9,5 pada post-test dari total 10 poin. Peningkatan ini membuktikan bahwa penyuluhan mampu memperluas pengetahuan kader, yang berdampak positif terhadap kinerja posyandu dalam penanganan stunting. Dengan demikian, peran kader posyandu sangat krusial dalam mendukung upaya pencegahan stunting dan peningkatan kesehatan masyarakat.
BULK METALLIC GLASS: KARAKTERISTIK MATERIAL DAN POTENSINYA SEBAGAI BIOMATERIAL: LITERATUR REVIEW Steffiola Hiandy; Elin Karlina; Gema Gempita
Journal of Innovation Research and Knowledge Vol. 5 No. 12 (2026): Mei 2026
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract: Bulk Metallic Glass (BMG) merupakan material logam inovatif dengan struktur atom amorf tanpa batas butir dan dislokasi kristal. Struktur ini memberikan kombinasi sifat mekanik unggul, seperti kekuatan luluh tinggi, batas regangan elastis, ketahanan fraktur yang baik, serta resistensi korosi melalui pembentukan lapisan oksida pasif yang stabil dalam lingkungan fisiologis. Literatur review ini bertujuan untuk mengevaluasi karakteristik material BMG serta potensinya sebagai biomaterial, khususnya dalam bidang kedokteran gigi. Metode penelitian dilakukan melalui studi literatur terhadap jurnal ilmiah yang dipublikasikan pada rentang tahun 2015–2026 yang diperoleh melalui Google Scholar. Hasil kajian menunjukkan bahwa BMG memiliki biokompatibilitas yang baik, ditandai dengan kemampuan adhesi dan proliferasi sel, rendahnya pelepasan ion logam, serta respon inflamasi yang minimal dibandingkan logam konvensional. Beberapa jenis BMG berbasis Zr, Ti, Mg, dan Fe juga memiliki modulus elastisitas yang lebih mendekati tulang. Meskipun sebagian besar penelitian masih berada pada tahap preklinis, BMG menunjukkan prospek yang signifikan sebagai biomaterial modern di masa depan.
Co-Authors Bambang Sunendar Purwasasmita, Bambang Sunendar Elin Karlina Faza Nadzry Putri Latuconsina Gantini Subrata, Gantini Haydar Alfarabi Sumadinata Marsha Afifah Yusuf Muhammad Kevin Ardhiwilaga Natha Nuel Silalahi Nina Djustiana Renny Febrida Steffiola Hiandy Zulia Hasratiningsih, Zulia