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Chen CC, Lee SY, Teng NC, Hu HT, Huang PC, Yang JC. In Vitro and In Vivo Studies of Hydrophilic Electrospun PLA95/β-TCP Membranes for Guided Tissue Regeneration (GTR) Applications. NANOMATERIALS 2019; 9:nano9040599. [PMID: 30979018 PMCID: PMC6523545 DOI: 10.3390/nano9040599] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 11/28/2022]
Abstract
The guided tissue regeneration (GTR) membrane is a barrier intended to maintain a space for alveolar bone and periodontal ligament tissue regeneration but prevent the migration of fast-growing soft tissue into the defect sites. This study evaluated the physical properties, in vivo animal study, and clinical efficacy of hydrophilic PLA95/β-TCP GTR membranes prepared by electrospinning (ES). The morphology and cytotoxicity of ES PLA95/β-TCP membranes were evaluated by SEM and 3-(4,5-cimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) respectively. The cementum and bone height were measured by an animal study at 8 and 16 weeks after surgery. Fifteen periodontal patients were selected for the clinical trial by using a commercial product and the ES PLA95/β-TCP membrane. Radiographs and various indexes were measured six months before and after surgery. The average fiber diameter for this ES PLA95/β-TCP membrane was 2.37 ± 0.86 µm. The MTT result for the ES PLA95/β-TCP membrane showed negative for cytotoxicity. The significant differences in the cementum and bone height were observed between empty control and the ES PLA95/β-TCP membrane in the animal model (p < 0.05). Clinical trial results showed clinical attachment level (CAL) of both control and ES PLA95/β-TCP groups, with a significant difference from the pre-surgery results after six months. This study demonstrated that the ES PLA95/β-TCP membrane can be used as an alternative GTR membrane for clinical applications.
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Affiliation(s)
- Chien-Chung Chen
- Graduate Institute of Biomedical Materials & Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan.
- Ph.D. Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan.
| | - Sheng-Yang Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Department of Dentistry, Wan-Fang Medical Center, Taipei Medical University, Taipei 116, Taiwan.
| | - Nai-Chia Teng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Hsin-Tai Hu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Pei-Chi Huang
- Department of Dentistry, Wan-Fang Medical Center, Taipei Medical University, Taipei 116, Taiwan.
| | - Jen-Chang Yang
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan.
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan.
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