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Chang KC, Chen JC, Cheng IT, Haung SM, Liu SM, Ko CL, Sun YS, Shih CJ, Chen WC. Strength and Biocompatibility of Heparin-Based Calcium Phosphate Cement Grafted with Ferulic Acid. Polymers (Basel) 2021; 13:2219. [PMID: 34279363 PMCID: PMC8271828 DOI: 10.3390/polym13132219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 12/14/2022] Open
Abstract
The biomimetic synthesis of carbonated apatites by biomolecule-based templates is a promising way for broadening apatite applications in bone tissue regeneration. In this work, heparin was used as an organic template to prepare uniform carbonate-based apatite nanorods (CHA) and graft ferulic acid (F-CHA) for enhanced bone mineralization. Next, by combining calcium phosphate cement (CPC) with different F-CHA/CPC ratios, a new type of injectable bone cement combined with F-CHA bioactive apatite was developed (CPC + F-CHA). The physicochemical properties, biocompatibility, and mineralization potential of the CPC + F-CHA composites were determined in vitro. The experimental results confirmed the preparation of highly biocompatible CHA and the compatibility of F-CHA with CPC. Although CPC + F-CHA composites with F-CHA (2.5 wt%, 5 wt%, and 10 wt%) showed a significant reduction in compressive strength (CS), compositing CPC with 10 wt% F-CHA yielded a CS suitable for orthopedic repair (CS still larger than 30 MPa). Spectroscopic and phase analyses revealed that the phase of the hydrothermally synthesized CHA product was not modified by the heparin template. Injection and disintegration tests indicated that the CPC + F-CHA composites have good biocompatibility even at 10 wt% F-CHA. D1 osteoprogenitor cells were cultured with the composites for 7 days in vitro, and the CPC + 10%F-CHA group demonstrated significantly promoted cell mineralization compared with other groups. Given these results, the use of over 10% F-CHA in CPC composites should be avoided if the latter is to be applied to load-bearing areas. A stress-shielding device may also be recommended to stabilize these areas. These newly developed biocompatible CPC + F-CHA have great potential as osteoconductive bone fillers for bone tissue engineering.
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Affiliation(s)
- Kai-Chi Chang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Jian-Chih Chen
- Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - I-Tse Cheng
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Ssu-Meng Haung
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Shih-Ming Liu
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Chia-Ling Ko
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
| | - Ying-Sui Sun
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chi-Jen Shih
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Medvecky L, Giretova M, Stulajterova R, Luptakova L, Sopcak T. Tetracalcium Phosphate/Monetite/Calcium Sulfate Hemihdrate Biocement Powder Mixtures Prepared by the One-Step Synthesis for Preparation of Nanocrystalline Hydroxyapatite Biocement-Properties and In Vitro Evaluation. MATERIALS 2021; 14:ma14092137. [PMID: 33922310 PMCID: PMC8122770 DOI: 10.3390/ma14092137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 12/28/2022]
Abstract
A modified one-step process was used to prepare tetracalcium phosphate/monetite/calcium sulfate hemihydrate powder cement mixtures (CAS). The procedure allowed the formation of monetite and calcium sulfate hemihydrate (CSH) in the form of nanoparticles. It was hypothesized that the presence of nanoCSH in small amounts enhances the in vitro bioactivity of CAS cement in relation to osteogenic gene markers in mesenchymal stem cells (MSCs). The CAS powder mixtures with 15 and 5 wt.% CSH were prepared by milling powder tetracalcium phosphate in an ethanolic solution of both orthophosphoric and sulfuric acids. The CAS cements had short setting times (around 5 min). The fast setting of the cement samples after the addition of the liquid component (water solution of NaH2PO4) was due to the partial formation of calcium sulfate dihydrate and hydroxyapatite before soaking in SBF with a small change in the original phase composition in cement powder samples after milling. Nanocrystalline hydroxyapatite biocement was produced by soaking of cement samples after setting in simulated body fluid (SBF). The fast release of calcium ions from CAS5 cement, as well as a small rise in the pH of SBF during soaking, were demonstrated. After soaking in SBF for 7 days, the final product of the cement transformation was nanocrystalline hydroxyapatite. The compressive strength of the cement samples (up to 30 MPa) after soaking in simulated body fluid (SBF) was comparable to that of bone. Real time polymerase chain reaction (RT-PCR) analysis revealed statistically significant higher gene expressions of alkaline phosphatase (ALP), osteonectin (ON) and osteopontin (OP) in cells cultured for 14 days in CAS5 extract compared to CSH-free cement. The addition of a small amount of nanoCSH (5 wt.%) to the tetracalcium phosphate (TTCP)/monetite cement mixture significantly promoted the over expression of osteogenic markers in MSCs. The prepared CAS powder mixture with its enhanced bioactivity can be used for bone defect treatment and has good potential for bone healing.
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Affiliation(s)
- Lubomir Medvecky
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Watsonova 47, 04 001 Kosice, Slovakia; (M.G.); (R.S.); (T.S.)
- Correspondence:
| | - Maria Giretova
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Watsonova 47, 04 001 Kosice, Slovakia; (M.G.); (R.S.); (T.S.)
| | - Radoslava Stulajterova
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Watsonova 47, 04 001 Kosice, Slovakia; (M.G.); (R.S.); (T.S.)
| | - Lenka Luptakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Tibor Sopcak
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Watsonova 47, 04 001 Kosice, Slovakia; (M.G.); (R.S.); (T.S.)
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Shieh TM, Hsu SM, Chang KC, Chen WC, Lin DJ. Calcium Phosphate Cement with Antimicrobial Properties and Radiopacity as an Endodontic Material. MATERIALS 2017; 10:ma10111256. [PMID: 29088119 PMCID: PMC5706203 DOI: 10.3390/ma10111256] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/13/2017] [Accepted: 10/27/2017] [Indexed: 01/04/2023]
Abstract
Calcium phosphate cements (CPCs) have several advantages for use as endodontic materials, and such advantages include ease of use, biocompatibility, potential hydroxyapatite-forming ability, and bond creation between the dentin and appropriate filling materials. However, unlike tricalcium silicate (CS)-based materials, CPCs do not have antibacterial properties. The present study doped a nonwashable CPC with 0.25–1.0 wt % hinokitiol and added 0, 5, and 10 wt % CS. The CPCs with 0.25–0.5 wt % hinokitiol showed appreciable antimicrobial properties without alterations in their working or setting times, mechanical properties, or cytocompatibility. Addition of CS slightly retarded the apatite formation of CPC and the working and setting time was obviously reduced. Moreover, addition of CS dramatically increased the compressive strength of CPC. Doping CS with 5 wt % ZnO provided additional antibacterial effects to the present CPC system. CS and hinokitiol exerted a synergic antibacterial effect, and the CPC with 0.25 wt % hinokitiol and 10 wt % CS (doped with 5 wt % ZnO) had higher antibacterial properties than that of pure CS. The addition of 10 wt % bismuth subgallate doubled the CPC radiopacity. The results demonstrate that hinokitiol and CS can improve the antibacterial properties of CPCs, and they can thus be considered for endodontic applications.
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Affiliation(s)
- Tzong-Ming Shieh
- Department of Dental Hygiene, China Medical University, Taichung 404, Taiwan.
- School of Dentistry, College of Medicine, China Medical University, Taichung 404, Taiwan.
| | - Shih-Ming Hsu
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming University, Taipei 112, Taiwan.
| | - Kai-Chi Chang
- Advanced Medical Devices and Composites Laboratory, Feng Chia University, Taichung 407, Taiwan.
- Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan.
| | - Wen-Cheng Chen
- Department of Dental Hygiene, China Medical University, Taichung 404, Taiwan.
- Advanced Medical Devices and Composites Laboratory, Feng Chia University, Taichung 407, Taiwan.
- Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan.
| | - Dan-Jae Lin
- Department of Dental Hygiene, China Medical University, Taichung 404, Taiwan.
- School of Dentistry, College of Medicine, China Medical University, Taichung 404, Taiwan.
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Incorporation of Collagen in Calcium Phosphate Cements for Controlling Osseointegration. MATERIALS 2017; 10:ma10080910. [PMID: 28783082 PMCID: PMC5578276 DOI: 10.3390/ma10080910] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/19/2017] [Accepted: 08/03/2017] [Indexed: 11/17/2022]
Abstract
In this study, we investigated the effect of supplementing a non-dispersive dicalcium phosphate-rich calcium phosphate bone cement (DCP-rich CPC) with type I collagen on in vitro cellular activities and its performance as a bone graft material. Varying amounts of type I collagen were added during the preparation of the DCP-rich CPC. In vitro cell adhesion, morphology, viability, and alkaline phosphatase (ALP) activity were evaluated using progenitor bone cells. Bone graft performance was evaluated via a rat posterolateral lumbar fusion model and osteointegration of the implant. New bone formations in the restorative sites were assessed by micro-computed tomography (micro-CT) and histological analysis. We found that the incorporation of collagen into the DCP-rich CPC was associated with increased cell adhesion, cell viability, and ALP activity in vitro. The spinal fusion model revealed a significant increase in bone regeneration. Additionally, better osseointegration was observed between the host bone and graft with the DCP-rich CPC supplemented with collagen than with the collagen-free DCP-rich CPC control graft. Furthermore, compared to the control graft, the results of micro-CT showed that a smaller amount of residual material was observed with the collagen-containing DCP-rich CPC graft compared with the control graft, which suggests the collagen supplement enhanced new bone formation. Of the different mixtures evaluated in this study (0.8 g DCP-rich CPC supplemented with 0.1, 0.2, and 0.4 mL type I collagen, respectively), DCP-rich CPC supplemented with 0.4 mL collagen led to the highest level of osteogenesis. Our results suggest that the DCP-rich CPC supplemented with collagen has potential to be used as an effective bone graft material in spinal surgery.
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Sopcak T, Medvecky L, Giretova M, Kovalcikova A, Stulajterova R, Durisin J. Phase transformations, microstructure formation and
in vitro
osteoblast response in calcium silicate/brushite cement composites. Biomed Mater 2016; 11:045013. [DOI: 10.1088/1748-6041/11/4/045013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Stulajterova R, Medvecky L, Giretova M, Sopcak T. Structural and phase characterization of bioceramics prepared from tetracalcium phosphate-monetite cement and in vitro osteoblast response. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:183. [PMID: 25893389 DOI: 10.1007/s10856-015-5511-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
Biphasic porous calcium phosphate ceramics was prepared by sintering of transformed tetracalcium phosphate-monetite cement. After annealing hydroxyapatite, β- or α-TCP were found as main phases in ceramic substrates and a highly microporous microstructure of cement ceramics was created without an addition of porosifier. The origin microstructure features characteristic by the presence of hollow particle agglomerates in cement were preserved in microstructure of cement ceramics after annealing but the hydroxyapatite particles rose in size up to 2 µm and obtained a more regular shape. A small decrease in compressive strength was demonstrated in ceramics sintered up to 1150 °C and enhanced osteoblast proliferation was revealed on cement ceramic substrates in comparison with cement sample and conventional ceramics. The ALP activity of osteoblasts decreased with rise in sintering temperature. The prepared cement microporous ceramics could be utilized as carrier for antibiotics, drugs, growth factors, enzymes or other substances stimulating healing process.
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Chen WC, Chang KC, Wu HY, Ko CL, Huang CL. Thermal cycling effect of dicalcium phosphate-reinforced composites on auto-mineralized dental resin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:359-68. [DOI: 10.1016/j.msec.2014.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 08/11/2014] [Accepted: 09/16/2014] [Indexed: 11/28/2022]
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8
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Comparison of three calcium phosphate bone graft substitutes from biomechanical, histological, and crystallographic perspectives using a rat posterolateral lumbar fusion model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:82-8. [DOI: 10.1016/j.msec.2014.08.065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 08/07/2014] [Accepted: 08/29/2014] [Indexed: 12/26/2022]
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Ko CL, Chen JC, Tien YC, Hung CC, Wang JC, Chen WC. Osteoregenerative capacities of dicalcium phosphate-rich calcium phosphate bone cement. J Biomed Mater Res A 2014; 103:203-10. [DOI: 10.1002/jbm.a.35167] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/27/2014] [Accepted: 03/12/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Chia-Ling Ko
- College of Dental Medicine; Kaohsiung Medical University; Department of Dentistry; Kaohsiung Medical University Hospital; Kaohsiung 807 Taiwan
- Department of Fiber and Composite Materials; Feng Chia University; Taichung 407 Taiwan
| | - Jian-Chih Chen
- College of Medicine; Kaohsiung Medical University; Department of Orthopaedics; Kaohsiung Medical University Hospital; Kaohsiung 807 Taiwan
| | - Yin-Chun Tien
- College of Medicine; Kaohsiung Medical University; Department of Orthopaedics; Kaohsiung Medical University Hospital; Kaohsiung 807 Taiwan
| | - Chun-Cheng Hung
- College of Dental Medicine; Kaohsiung Medical University; Department of Dentistry; Kaohsiung Medical University Hospital; Kaohsiung 807 Taiwan
| | - Jen-Chyan Wang
- College of Dental Medicine; Kaohsiung Medical University; Department of Dentistry; Kaohsiung Medical University Hospital; Kaohsiung 807 Taiwan
| | - Wen-Cheng Chen
- Department of Fiber and Composite Materials; Feng Chia University; Taichung 407 Taiwan
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Ko CL, Chen JC, Hung CC, Wang JC, Tien YC, Chen WC. Biphasic products of dicalcium phosphate-rich cement with injectability and nondispersibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:40-6. [PMID: 24863195 DOI: 10.1016/j.msec.2014.02.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 01/24/2014] [Accepted: 02/17/2014] [Indexed: 11/19/2022]
Abstract
In this study, a calcium phosphate cement was developed using tetracalcium phosphate and surface-modified dicalcium phosphate anhydrous (DCPA). This developed injectable bone graft substitute can be molded to the shape of the bone cavity and set in situ through the piping system that has an adequate mechanical strength, non-dispersibility, and biocompatibility. The materials were based on the modified DCPA compositions of calcium phosphate cement (CPC), where the phase ratio of the surface-modified DCPA is higher than that of the conventional CPC for forming dicalcium phosphate (DCP)-rich cement. The composition and morphology of several calcium phosphate cement specimens during setting were analyzed via X-ray diffractometry and transmission electron microscopy coupled with an energy dispersive spectroscopy system. The compressive strength of DCP-rich CPCs was greater than 30MPa after 24h of immersion in vitro. The reaction of the CPCs produced steady final biphasic products of DCPs with apatite. The composites of calcium phosphate cements derived from tetracalcium phosphate mixed with surface-modified DCPA exhibited excellent mechanical properties, injectability, and interlocking forces between particles, and they also featured nondispersive behavior when immersed in a physiological solution.
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Affiliation(s)
- Chia-Ling Ko
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung, 407, Taiwan; Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jian-Chih Chen
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Department of Orthopaedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chun-Cheng Hung
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Jen-Chyan Wang
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yin-Chun Tien
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Department of Orthopaedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung, 407, Taiwan.
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Chen WC, Wu HY. Color stability of nanocrystallite-treated and silicate-treated fillers of calcium phosphate composite resin: an in vitro study. J Prosthet Dent 2013; 111:416-24. [PMID: 24360013 DOI: 10.1016/j.prosdent.2013.08.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 07/30/2013] [Accepted: 08/06/2013] [Indexed: 11/28/2022]
Abstract
STATEMENT OF PROBLEM Some composite resins fail esthetically because the color differences to adjacent tooth structure are more than the limits of color tolerance (values are higher than 3.3 ΔE units). PURPOSE The purpose of this study was to assess the effect on color stability of surface-modified dicalcium phosphate anhydrous particles treated with nanocrystallites and silane coupling agents used as fillers for dental composite resin. MATERIAL AND METHODS Specimens were divided into 4 groups of fillers on unmodified (without modification) and on modified surfaces (silanization, nanocrystallites, and nanocrystallites with silica). These groups served as reinforcements and had 2 mass ratios of fillers (filler+resin) at 30% and 50%. The color differences were measured from day 1 after thermocycling procedures and for different specimen-treated procedures (drying, immersion, and thermocycling) at 1 to 16 days after 24 hours of immersion (n=5). ANOVA test was used to analyze the differences. The Student t test was used to evaluate the significant group comparisons, and a 3-way ANOVA was used to determine differences and interactions with the filler amount data (α=.05). RESULTS Specimens with lower amounts of silica-treated fillers exhibited more variations in color than specimens with larger amounts of fillers. The main color variation was observed within the dried specimens after 24 hours of immersion. The color difference stabilized within 8 days. Fewer changes in the ΔE values were noted in the groups of filler surfaces with nanocrystallites than in groups without nanocrystallized treatment after the 1 day to 16 days of aging. CONCLUSIONS Color difference was significantly reduced when the fillers reached a certain proportion, which further indicated that fillers with nanocrystal treatment could stabilize color variations within perceptible color tolerances (2.0 ΔE units) after immersion and thermocycling.
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Affiliation(s)
- Wen Cheng Chen
- Chief, Advanced Medical Devices and Composites Laboratory; and Associate Professor, Department of Fiber and Composite Materials, College of Engineering, Feng Chia University, Taichung, Taiwan.
| | - Hui Yu Wu
- Research Assistant, Department of Fiber and Composite Materials, College of Engineering, Feng Chia University, Taichung, Taiwan
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Properties of osteoconductive biomaterials: calcium phosphate cement with different ratios of platelet-rich plasma as identifiers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3537-44. [PMID: 23706244 DOI: 10.1016/j.msec.2013.04.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 03/01/2013] [Accepted: 04/22/2013] [Indexed: 11/22/2022]
Abstract
This study aims to evaluate further the performance of a platelet-rich plasma (PRP) additive incorporated with calcium phosphate bone cement (CPC) in vitro to prove its efficiency as bone graft substitutes and its compatibility to be incorporated into the CPC with other techniques in clinical restoration in vivo. The growth factor release ability and the osteogenic evaluation of PRP, CPC, and PRP/CPC testing groups with 5, 10, and 15 wt.% PRP were compared in vitro. Four groups were measured using non-decalcified staining methods in vivo, which include the testing group of 10 wt.% PRP/CPC selected from the evaluation in vitro, by using both the autograft with rabbit trabecular and CPC-only as comparison groups and the group without grafting material as the control sample. The results obtained through specimen immersion show that growth factor release and alkaline phosphatase activities after osteoprogenitor cell culture had a significantly better effect on 10 and 15 wt.% PRP/CPC than on the other groups in vitro. Analysis results suggest that PRP was still retained in the CPC matrix even after 32 days of immersion. The results in vivo show that the histology of the autograft bone and the control group without grafting material exhibited fibrous connective and adipose tissues, which obviously filled the created cavity even at nine weeks after the operation. Osteoregeneration was more successful in the PRP-additive group, which accumulated bone remodeling than in the other groups. In conclusion, CPC could be a potential carrier with adequate PRP additives that bear a therapeutic potential for enhanced bone tissue regeneration.
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Evaluation of reinforced strength and remineralized potential of resins with nanocrystallites and silica modified filler surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1143-51. [DOI: 10.1016/j.msec.2012.12.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/08/2012] [Accepted: 12/01/2012] [Indexed: 11/22/2022]
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Abstract
Calcium phosphate bone cement (CPC), a ceramic material, is commonly used as a biomaterial for the restoration of bone injuries. This study creates the composite scaffolds by mixing CPC with various amounts of polylactide fibers. Then, the resulting scaffolds are observed and tested in terms of the morphology, compressive strength, and fiber distribution, respectively, to explore the influence of the addition of polylactide fibers on the scaffolds. According to the experimental result, the compressive strength of the scaffolds increases as a result of an increase in the addition of fibers.
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Kuang GM, Yau W, Lam WM, Wu J, Chiu KY, Lu WW, Pan H. An effective approach by a chelate reaction in optimizing the setting process of strontium-incorporated calcium phosphate bone cement. J Biomed Mater Res B Appl Biomater 2012; 100:778-87. [DOI: 10.1002/jbm.b.32511] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 10/25/2011] [Accepted: 10/31/2011] [Indexed: 11/11/2022]
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16
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Chen JC, Ko CL, Shih CJ, Tien YC, Chen WC. Calcium phosphate bone cement with 10wt% platelet-rich plasma in vitro and in vivo. J Dent 2012; 40:114-22. [DOI: 10.1016/j.jdent.2011.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 10/26/2011] [Accepted: 11/01/2011] [Indexed: 10/15/2022] Open
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Lin DJ, Ju CP, Huang SH, Tien YC, Yin HS, Chen WC, Chern Lin JH. Mechanical testing and osteointegration of titanium implant with calcium phosphate bone cement and autograft alternatives. J Mech Behav Biomed Mater 2011; 4:1186-95. [DOI: 10.1016/j.jmbbm.2011.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 03/30/2011] [Accepted: 04/03/2011] [Indexed: 10/18/2022]
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Fine-Tuning of Polymeric Resins and Their Interfaces with Amorphous Calcium Phosphate. A Strategy for Designing Effective Remineralizing Dental Composites. Polymers (Basel) 2010; 2:378-392. [PMID: 21283507 DOI: 10.3390/polym2040378] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
For over a decade our group has been designing, preparing and evaluating bioactive, remineralizing composites based on amorphous calcium phosphate (ACP) fillers embedded in polymerized methacrylate resin matrices. In these studies a major focus has been on exploring structure-property relationships of the matrix phase of these composites on their anti-cariogenic potential. The main challenges were to gain a better understanding of polymer matrix/filler interfacial properties through controlling the surface properties of the fillers or through fine-tuning of the resin matrix. In this work, we describe the effect of chemical structure and composition of the resin matrices on some of the critical physicochemical properties of the copolymers and their ACP composites. Such structure-property studies are essential in formulating clinically effective products, and this knowledge base is likely to have strong impact on the future design of therapeutic materials, appropriate for mineral restoration in defective tooth structures.
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