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All Journal Journal of Dentistry Indonesia Padjadjaran Journal of Dentistry B-Dent, Jurnal Kedokteran Gigi Universitas Baiturrahmah
Rakhmatia, Yunia Dwi
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Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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PENGGUNAAN MEMBRAN POLY(LACTIC-CO-GLYCOLIC) ACID (PLGA) YANG DIPERKUAT OLEH NANOSELULOSA UNTUK PROSEDUR GUIDED BONE REGENERATION (GBR) Kurniawati, Nathasya; Rakhmatia, Yunia Dwi; Damayanti, Lisda
B-Dent: Jurnal Kedokteran Gigi Universitas Baiturrahmah Vol 11, No 1 (2024): Vol 11 No 1, Juni 2024
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/jbd.v11i1.1542

Abstract

Introduction: Poly (lactic-co-glycolic acid) (PLGA) was developed as a bone regeneration membrane due to its biocompatibility and biodegradability, despite its inherent lack of mechanical strength. One method of enhancing the mechanical strength of PLGA is through its combination with nanocellulose, which possesses high mechanical strength. Nevertheless, nanocellulose exhibits rigidity that renders it challenging to manage in a clinical setting. Aim: The objective of this study was to ascertain the potential of PLGA membranes reinforced by nanocellulose as a bone regeneration material. Method: A review of the literature was conducted through online databases PubMed, Science Direct, SCOPUS, and MDPI for the past 10 years. Result: The results of the search yielded four articles discussing the use of synthetic polymers, particularly PLGA reinforced by nanocellulose as a membrane. Of the four articles identified, two solely addressed the biological properties of the membrane, one solely the mechanical properties, and one reported both. The articles found support the theory regarding the advantages and disadvantages of PLGA and nanocellulose as membranes. Conclusion: The utilisation of PLGA membranes reinforced by nanocellulose merits further investigation, as these membranes demonstrate the potential to satisfy the design criteria for a mechanical barrier membrane in bone regeneration.
Selection of Commercially Available Membrane between Resorbable and Nonresorbable Materials for Guided Bone Regeneration Rakhmatia, Yunia Dwi; Ayukawa, Yasunori; Furuhashi, Akihiro; Koyano, Kiyoshi
Journal of Dentistry Indonesia Vol. 29, No. 2
Publisher : UI Scholars Hub

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Abstract

Objective: This study aims to evaluate the commercially available membranes used for treatment in Guided Bone Regeneration (GBR). Methods: Four membranes resorbable and non-resorbable were used and a critical size defect in six-week-old Wistar rats was created for membrane application. Meanwhile, the defect without membrane treatment was used as the control (C). Results: After 4 and 8 weeks, all rats were euthanized and block biopsies of calvaria including membrane were excised and analysed using microcomputed tomography (micro-CT). The sections were dehydrated with graded ethanol, embedded in resin, and cut for histologic evaluation. After 4 weeks, all membrane groups and the control showed different degrees of bone volume (BV) and mineral density (BMD). Titanium mesh (TM) was observed with higher bone volume but lower BMD compared to the control, Cytoplast (CP), Biomend (BM), and GC membranes. The results showed that newly formed bone adjacent to the original filled the defect area. Conclusion: TM was the stiffest among the commercially available membranes used and increased the abundance of bone formation at 4 weeks. The selection of membranes used in GBR needs to consider the treatment requirement and the patient’s point of view.
Design modification of a porcelain-fused-to-metal (PFM) adhesive bridge for a mandibular molar with a short clinical crown: A case report Amelia, Amelia; Bonifacius, Setyawan; Rakhmatia, Yunia Dwi
Padjadjaran Journal of Dentistry Vol 38, No 1 (2026): March 2026
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol38no1.66158

Abstract

Introduction: Replacement of a single missing posterior tooth can be effectively achieved using a fixed dental prosthesis (FDP). Resin-bonded FDPs provide a conservative alternative to conventional full-coverage FDPs because they require minimal tooth reduction and preserve the remaining tooth structure while maintaining function and aesthetics. However, short clinical crowns and lingually inclined mandibular molars may compromise retention, resistance, and the path of insertion. This case report describes the use of a modified porcelain-fused-to-metal (PFM) resin-bonded FDP with onlay metal wings and adhesive bonding to manage a mandibular molar with a short clinical crown and a lingually inclined abutment. Case report: A 25-year-old male patient was referred to the Prosthodontics Clinic for replacement of a missing mandibular right first molar. The tooth had been extracted approximately one year previously. Intraoral examination showed that tooth 47 was lingually inclined and had a short clinical crown. Panoramic radiography showed adequate bone support and no pathological findings, indicating that the abutment teeth were suitable for prosthetic treatment. The treatment plan involved a modified PFM adhesive bridge with a sanitary pontic replacing tooth 46 and onlay metal wings on teeth 45 and 47. Retention was achieved through a combination of mechanical interlocking, chemical bonding, and adhesive cementation. At the one-week follow-up after FDP insertion, the prosthesis demonstrated satisfactory fit and occlusion, and the patient reported no discomfort or functional problems. Conclusion: A modified onlay-wing design for a lingually inclined abutment with a short clinical crown, combined with adhesive resin cementation to a metal framework, may provide a simplified and predictable approach for replacing a mandibular molar using a resin-bonded FDP.     
Co-Authors Amelia Amelia Ayukawa, Yasunori Furuhashi, Akihiro Koyano, Kiyoshi Kurniawati, Nathasya Lisda Damayanti Setyawan Bonifacius