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Ivanovski S, Lee RSB, Fernandez-Medina T, Pinto N, Andrade C, Quirynen M. Impact of autologous platelet concentrates on the osseointegration of dental implants. Periodontol 2000 2024. [PMID: 38647020 DOI: 10.1111/prd.12563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/06/2024] [Accepted: 03/04/2024] [Indexed: 04/25/2024]
Abstract
Osseointegration is defined as the direct deposition of bone onto biomaterial devices, most commonly composed from titanium, for the purpose of anchoring dental prostheses. The use of autologous platelet concentrates (APC) has the potential to enhance this process by modifying the interface between the host and the surface of the titanium implant. The rationale is to modify the implant surface and implant-bone interface via "biomimicry," a process whereby the deposition of the host's own proteins and extracellular matrix enhances the biocompatibility of the implant and hence accelerates the osteogenic healing process. This review of the available evidence reporting on the effect of APC on osseointegration explores in vitro laboratory studies of the interaction of APC with different implant surfaces, as well as the in vivo and clinical effects of APC on osseointegration in animal and human studies. The inherent variability associated with using autologous products, namely the unique composition of each individual's blood plasma, as well as the great variety in APC protocols, combination of biomaterials, and clinical/therapeutic application, makes it is difficult to make any firm conclusions about the in vivo and clinical effects of APC on osseointegration. The available evidence suggests that the clinical benefits of adding PRP and the liquid form of L-PRF (liquid fibrinogen) to any implant surface appear to be limited. The application of L-PRF membranes in the osteotomy site, however, may produce positive clinical effects at the early stage of healing (up to 6 weeks), by promoting early implant stability and reducing marginal bone loss, although no positive longer term effects were observed. Careful interpretation and cautious conclusions should be drawn from these findings as there were various limitations in methodology. Future studies should focus on better understanding of the influence of APCs on the biomaterial surface and designing controlled preclinical and clinical studies using standardized APC preparation and application protocols.
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Affiliation(s)
- Sašo Ivanovski
- School of Dentistry, Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), The University of Queensland, Brisbane, Australia
| | - Ryan S B Lee
- School of Dentistry, Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), The University of Queensland, Brisbane, Australia
| | - Tulio Fernandez-Medina
- School of Dentistry, Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), The University of Queensland, Brisbane, Australia
- College of Medicine and Dentistry, James Cook University, Cairns, Australia
| | - Nelson Pinto
- Department of Periodontology and Implantology, Faculty of Dentistry, Universidad de Los Andes, Santiago, Chile
| | - Catherine Andrade
- Department of Periodontology and Implantology, Faculty of Dentistry, Universidad de Los Andes, Santiago, Chile
| | - Marc Quirynen
- Department of Oral Health Sciences, Katholieke Universiteit Leuven (Periodontology), University Hospitals Leuven, Leuven, Belgium
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Palaiologou A, Keeling F. Autologous blood products: Usage and preparation protocols. Clin Adv Periodontics 2022; 12:287-293. [PMID: 35906935 DOI: 10.1002/cap.10221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/26/2022] [Indexed: 11/08/2022]
Abstract
FOCUSED CLINICAL QUESTION What are the appropriate preparation protocols for autologous blood products to support their clinical utilization? SUMMARY Autologous blood products provide a unique clinical benefit. Their popularity among the professions is growing. However, as this is a rapidly evolving field, multiple modalities are presented within the literature. Frequently there is no demonstrated superiority to previous iterations. This brief review attempts to offer a concise chronology on their evolution, preparation, and where possible, evidence to support their clinical utilization. CONCLUSIONS The field of autologous blood products is expanding rapidly. These products appear to yield variable clinical benefits in specific indications. However, evidence supporting their universal application is scant, and the superiority of one formulation versus another is yet to be demonstrated.
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Affiliation(s)
- Archontia Palaiologou
- Department of Periodontics, University of Texas Health San Antonio School of Dentistry, San Antonio, Texas, USA
| | - Francis Keeling
- Department of Periodontics, University of Texas Health San Antonio School of Dentistry, San Antonio, Texas, USA
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Li Z, Zhou J, Chen S. The effectiveness of locally injected platelet-rich plasma on orthodontic tooth movement acceleration. Angle Orthod 2021; 91:391-398. [PMID: 33566068 PMCID: PMC8084470 DOI: 10.2319/061320-544.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 11/01/2020] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES To critically appraise the current evidence available from animal studies pertaining to the effectiveness of platelet-rich plasma (PRP) in accelerating orthodontic tooth movement. MATERIALS AND METHODS Electronic searches of nine databases were conducted up to June 2020, followed by a hand search of the reference list of eligible studies. The study design required was prospective controlled animal studies. The primary outcome assessed was the rate of orthodontic tooth movement. The secondary outcome evaluated was histological changes after PRP application. Following study retrieval and selection, relevant data were extracted. Risk-of-bias (RoB) assessment was done using the Systematic Review Center for Laboratory Animal Experimentation's Risk of Bias Tool (SYRCLE's Risk of Bias Tool). Two review authors conducted the work of searching, study selection, and quality assessment independently and in duplicate. RESULTS Of 193 studies, 5 animal studies were included in this systematic review. Three studies found a positive correlation between PRP injection and tooth movement acceleration, along with corresponding histological changes. Two studies detected no significant difference in tooth movement rate after PRP application. CONCLUSIONS Based on the current limited evidence, the efficacy of PRP on tooth movement acceleration remains debatable. More well-designed randomized controlled trials involving humans are called for to obtain more clinically significant conclusions.
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A Comprehensive Review of Concentrated Growth Factors and Their Novel Applications in Facial Reconstructive and Regenerative Medicine. Aesthetic Plast Surg 2020; 44:1047-1057. [PMID: 31970453 DOI: 10.1007/s00266-020-01620-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Concentrated growth factors (CGFs) are the latest generation of platelet concentrates. The objective of developing CGF is to increase therapeutic efficacy. However, few studies have supported the superiority of CGF in composition and efficacy. The reconstruction and regeneration process is complicated and long term, whereas bioactivity of CGF is not durable. The purpose of this review is threefold. The first is to recommend more comparative studies between CGF and other platelet concentrates. The second is to constitute a continuous drug delivery system by combining CGF with other biomaterials. Finally, the novel use of CGF in facial regenerative and reconstructive medicine will be highlighted. METHODS A comprehensive review of literature regarding the use of CGF in facial regenerative and reconstructive medicine was performed. Based on the inclusion and exclusion criteria, a total of 135 articles were included. RESULTS The use of CGF involving facial rejuvenation, cartilage grafting, facial bone defects, facial peripheral nerve injury and wounding is reviewed. The reconstructive and regenerative principles lie in firm fibrin scaffolds and continuous in situ delivery of multiple growth factors. CONCLUSIONS CGF represents an advance in personalized medicine concept. However, the current scientific evidences about the use of CGF are limited. More basic and clinical studies should be conducted to understand the characteristics and clinical application of CGF. LEVEL OF EVIDENCE V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Slaninka I, Fibír A, Kaška M, Páral J. Use of autologous platelet-rich plasma in healing skin graft donor sites. J Wound Care 2020; 29:36-41. [DOI: 10.12968/jowc.2020.29.1.36] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Objective: To demonstrate that the use of platelet-rich plasma (PRP) enhances both the quality of healing and the time required for wound healing at a skin graft donor site. Methods: Patients who had dermo-epidermal skin grafts taken from the thigh area were included in a prospective, randomised clinical study. PRP was applied to one donor site and then covered with Vaseline-impregnated, open-weave gauze and gauze, while the contralateral donor site on the other thigh served as a control and was covered with the open-weave gauze and gauze without PRP. Results: A total of 24 patients took part in the study, of which three developed infections and were thus removed from the study. Use of PRP reduced the wound healing time of the dermo-epidermal graft donor sites by a mean 17.8% and median 18 days. On average, the treated donor sites healed in 14.9 days compared with 18.4 days for the control group. The median was 14 days compared with 18 days in the control group (p=0.026). In one patient, healing was slower on the side where PRP was applied. In 20 patients, healing of the donor site was accelerated where PRP was applied. Conclusion: The study demonstrated a beneficial effect of PRP, as healing time was shortened. Using PRP to heal wounds could be beneficial for patients for whom commonly available wound healing therapies have failed, as well as for high-risk patient groups for whom problematic wound healing may be expected.
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Affiliation(s)
- Igor Slaninka
- Department of Surgery, Faculty of Medicine of Charles University and University Hospital Hradec Králové, Czech Republic
- Department of Surgery, Faculty of Medicine of Charles University in Hradec Králové, Czech Republic
| | - Aleš Fibír
- Department of Surgery, Faculty of Medicine of Charles University and University Hospital Hradec Králové, Czech Republic
- Department of Surgery, Faculty of Medicine of Charles University in Hradec Králové, Czech Republic
| | - Milan Kaška
- Department of Surgery, Faculty of Medicine of Charles University and University Hospital Hradec Králové, Czech Republic
- Department of Surgery, Faculty of Medicine of Charles University in Hradec Králové, Czech Republic
| | - Jiří Páral
- Department of Surgery, Faculty of Medicine of Charles University and University Hospital Hradec Králové, Czech Republic
- Department of Surgery, Faculty of Medicine of Charles University in Hradec Králové, Czech Republic
- Department of Military Surgery, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
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Abstract
PURPOSE The purpose of this study was to evaluate the effects of the growth factor within platelet-rich fibrin (PRF) in proliferation and differentiation of osteoblast and to observe the effectiveness of PRF. MATERIALS AND METHODS The colorimetric MTT assay, cell live and dead assay, alkaline phosphatase staining and activity assay, alizarine red S, and von Kossa staining were performed. Finally, the alterations of biomarkers associated with bone formation were verified at the mRNA level by quantitative polymerase chain reaction (PCR) and quantitative real-time PCR. In in vivo study, 6 adult mongrel dogs were used. The defect was performed and divided into 3 groups: (1) defect left unfilled, (2) defect filled with only 0.25-g Bio-Oss, and (3) defect filled with 0.25-g Bio-Oss mixed with PRF. RESULTS MTT and cell live and dead assay showed that PRF did not affect the cell viability in MG-63 cells. The alkaline phosphatase activity, calcification, and mineralization were gradually increased in the MG-63 cells treated with PRF. Furthermore, the mRNA levels of biomarker gene in the MG-63 cells treated with PRF were significantly higher than those of control. In in vivo study, both radiographical and histological evaluations showed that the new bone formations were significantly increased in the defecting bone region transplanted with Bio-Oss and PRF compared with Bio-Oss only at 2 weeks after transplantation. CONCLUSION PRF can promote the bone regeneration without any complications.
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Donos N, Dereka X, Calciolari E. The use of bioactive factors to enhance bone regeneration: A narrative review. J Clin Periodontol 2019; 46 Suppl 21:124-161. [DOI: 10.1111/jcpe.13048] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/08/2018] [Accepted: 12/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Nikos Donos
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
| | - Xanthippi Dereka
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
- Department of Periodontology; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Elena Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
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Wang L, Wan M, Li Z, Zhong N, Liang D, Ge L. A comparative study of the effects of concentrated growth factors in two different forms on osteogenesis in vitro. Mol Med Rep 2019; 20:1039-1048. [PMID: 31173196 PMCID: PMC6625392 DOI: 10.3892/mmr.2019.10313] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 04/24/2019] [Indexed: 01/16/2023] Open
Abstract
Extending the release cycle of growth factors to match the cycle of bone remodeling is difficult. When using concentrated growth factors (CGFs), the release of growth factors is excessively rapid. In the present study, CGF samples were prepared by centrifugation. CGF samples were then lyophilized and grinded into a powder, which was termed freeze‑dried CGF. The freeze‑dried CGF samples were mixed with chitosan‑alginate composite hydrogels, and the mixture was lyophilized. The result was a chitosan‑alginate composite CGF membrane, which was called sustained‑release CGF. This study investigated whether freeze‑dried CGF in a chitosan‑alginate composite gel can release CGF steadily to achieve effective osteogenesis. The proliferation and osteogenic expression of MC3T3‑E1 cells induced by the supernatants from incubation with freeze‑dried CGF and sustained‑release CGF were evaluated. The concentrations of the growth factors, transforming growth factor β1 (TGF‑β1), insulin‑like growth factor‑1 (IGF‑1), platelet‑derived growth factor‑AB (PDGF‑AB) and vascular endothelial growth factor (VEGF), in these two experimental groups at different times were determined by ELISA kits. The freeze‑dried CGF showed better osteogenic performance than the sustained‑release CGF in the early stages. At later stages, the sustained‑release CGF had significant advantages over freeze‑dried CGF in terms of promoting osteogenic mineralization. By characterizing the biologic properties of the CGF in the two different forms in vitro, we obtained a better understanding of their clinical effects.
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Affiliation(s)
- Liping Wang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Mianjia Wan
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Zhengmao Li
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Ningying Zhong
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Dongliang Liang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Linhu Ge
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
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Batas L, Tsalikis L, Stavropoulos A. PRGF as adjunct to DBB in maxillary sinus floor augmentation: histological results of a pilot split-mouth study. Int J Implant Dent 2019; 5:14. [PMID: 30931490 PMCID: PMC6441666 DOI: 10.1186/s40729-019-0166-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/05/2019] [Indexed: 02/07/2023] Open
Abstract
Background Various technologies of autologous blood concentrates are currently evaluated for their potential to enhance bone formation. Aim To report on the histological outcome of maxillary sinus floor augmentation (MSFA) with deproteinized bovine bone (DBB) in combination with chair-side prepared autologous platelet-rich growth factor (PRGF), in comparison to that with DBB alone. Materials and methods Six partially edentulous patients with ≤ 3-mm residual bone height bilaterally in the posterior maxilla were subjected to MSFA with the lateral window technique, using DBB in combination with PRGF (PRGF System1 Vitoria, Spain) on one side or DBB alone on the contralateral side. Cylindrical biopsies from the augmented sinuses were collected during implant installation, ca. 6 months post-MSFA, and subjected to non-decalcified histological and histomorphometric evaluation. Results The collected biopsies varied in length (range 3.5–9.9 mm); consequently, the portion of the biopsy representing augmented tissues also varied (range 2.3–14.6 mm2). New bone formation with a trabecular appearance and numerous DBB particles in contact with the new bone or with loose connective tissue were observed. No differences in the relative volumes of bone formation were found in sinuses augmented with DBB + PRGF or DBB alone 6 months after MSFA (35.6 ± 8.26 mm and 37.8 ± 3.15 mm, respectively). Conclusion and clinical implications In conclusion, based on these preliminary results, PRGF as adjunct to DBB for MSFA, except from improved handling during the operation, does not appear to enhance nor interfere with bone formation inside the human sinus 6 months after MSFA, compared with the use of DBB alone.
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Affiliation(s)
- Leonidas Batas
- Department of Preventive Dentistry, Periodontology and Implant Biology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Lazaros Tsalikis
- Department of Preventive Dentistry, Periodontology and Implant Biology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden.,Center for Experimental and Preclinical Biomedical Research (CEPBR), Athens, Greece.,Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
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Rashid A, ElSharaby FA, Nassef EM, Mehanni S, Mostafa YA. Effect of platelet-rich plasma on orthodontic tooth movement in dogs. Orthod Craniofac Res 2017; 20:102-110. [DOI: 10.1111/ocr.12146] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2017] [Indexed: 12/20/2022]
Affiliation(s)
- A. Rashid
- Department of Orthodontics and Dentofacial Orthopedics; Fayoum University; Fayoum Egypt
| | - F. A. ElSharaby
- Department of Orthodontics and Dentofacial Orthopedics; Cairo University; Cairo Egypt
| | - E. M. Nassef
- Department of Orthodontics and Dentofacial Orthopedics; Future University; Cairo Egypt
| | - S. Mehanni
- Department of Oral Biology; Cairo University; Cairo Egypt
| | - Y. A. Mostafa
- Department of Orthodontics and Dentofacial Orthopedics; Future University; Cairo Egypt
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Mihaylova Z, Mitev V, Stanimirov P, Isaeva A, Gateva N, Ishkitiev N. Use of platelet concentrates in oral and maxillofacial surgery: an overview. Acta Odontol Scand 2017; 75:1-11. [PMID: 27669885 DOI: 10.1080/00016357.2016.1236985] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To describe and provide a comprehensive overview on the development, use and efficacy of autologous platelet concentrates in different in vitro and in vivo studies focusing on oral and maxillofacial pathologies. MATERIALS AND METHODS Present work employs an extensive critical overview of the literature on the development and application of platelet concentrates. RESULTS Platelet concentrates are innovative endogenous therapeutic agents which gained a lot of interest in different medical and dental disciplines due to their potential ability to stimulate and increase regeneration of soft and hard tissues. The effect of platelet-derived products is considered to be a result of the high number of platelets which contain a wide range of growth factors. They are not just therapeutic products but autologous blood concentrates containing active molecules. The quality of platelet concentrates may vary according to the individual physical state of donors making it difficult to to compare the outcomes of their application. Although, there are many studies analyzing the properties of these biomaterials both in vivo and in vitro, a consensus regarding their efficacy still has to be reached. CONCLUSION Evidences described in the literature on the efficacy of platelet concentrates in procedures in oral and maxillofacial region are controversial and limited. In order to clarify the real advantages and priorities for the patients, when the blood-derived products are applied, further in vitro and in vivo research about the activity of PRP and PRF on the dental cells biology should be conducted.
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Ocaña RP, Rabelo GD, Sassi LM, Rodrigues VP, Alves FA. Implant osseointegration in irradiated bone: an experimental study. J Periodontal Res 2016; 52:505-511. [PMID: 27624290 DOI: 10.1111/jre.12416] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES The aim of this study was to evaluate the effect of radiotherapy on the osseointegration of dental implants in the tibia and the action of platelet-rich plasma (PRP) as an adjuvant therapy. MATERIAL AND METHODS A total of 18 rabbits received two implants in each tibial epiphysis, totalizing 72 implants. The control group (group I) was composed by six rabbits and did not receive radiotherapy. The test groups (II and III) received a single dose of 1727 cGy. Group II was composed by six irradiated animals and group III by six animals that received irradiation and PRP during implant placement. The implant success rate, the bone-implant contact (BIC), and the bone volume were analyzed. RESULTS There was no osseointegration in four of the implants, three in group II and one in group III. Total BIC was significantly higher in group I, when compared to the other groups. There was a significant difference of osteoid BIC only between irradiated animals (group II, 8.5%; group III, 4.7%; p = 0.001). On the other hand, the mineralized BIC was significantly higher in group I. Furthermore, group II had a lower mineralized BIC than group III (p = 0.002). Bone volume was higher in the control group (41.3%), followed by group III (33.4%) and II (25.1%), with differences between groups I and II (p = 0.001) and groups II and III (p = 0.022). CONCLUSIONS The present study showed that both the bone volume and BIC were higher in the control group. However, the failure rates of the implants were low in both irradiated groups. The PRP was a positive adjuvant in the osseointegration process.
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Affiliation(s)
- R P Ocaña
- Department of Stomatology, AC Camargo Cancer Center, São Paulo, Brazil
| | - G D Rabelo
- Department of Stomatology, AC Camargo Cancer Center, São Paulo, Brazil
| | - L M Sassi
- Department of Stomatology, Erasto Gaertner Cancer Hospital, Curitiba, Brazil
| | - V P Rodrigues
- Faculty of Dentistry, University of São Paulo, São Paulo, Brazil
| | - F A Alves
- Department of Stomatology, AC Camargo Cancer Center, São Paulo, Brazil.,Department of Stomatology, Faculty of Dentistry, University of São Paulo, São Paulo, Brazil
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Park HC, Kim SG, Oh JS, You JS, Kim JS, Lim SC, Jeong MA, Kim JS, Jung C, Kwon YS, Ji H. Early Bone Formation at a Femur Defect Using CGF and PRF Grafts in Adult Dogs: A Comparative Study. IMPLANT DENT 2016; 25:387-93. [PMID: 27123893 DOI: 10.1097/id.0000000000000423] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE The purpose of this study was to compare the predictability of new bone formation using an autologous concentrated growth factor (CGF) graft alone and platelet graft alone. MATERIALS AND METHODS Four bony defects of 8 mm were formed, and 3.7- × 10-mm implants were placed in the right femur. The platelet-rich fibrin (PRF), CGF, and synthetic bone were grafted to the bone defect area. Enzyme linked immunosorbent assay quantitative analysis and microscopic analysis of the fibrinogen structure were performed. RESULTS At 4 weeks, the comparisons of each experimental group showed a significant difference between the CGF group and the synthetic bone graft group. When comparing the CGF and allograft material groups, the allograft group showed significantly more new bone formation. In the case of vascular endothelial growth factor, CGF had 1.5 times more than PRF. CGF showed a fibrinogen structure with a constant diameter. CONCLUSION When applied to a clinical case, CGF is predicted to show better results than PRF.
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Affiliation(s)
- Hyun-Chun Park
- *Resident, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. †Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ‡Associate Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. §Assistant Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ¶Assistant Professor, Department of Pre-Dentistry, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ‖Professor, Department of Pathology, School of Medicine, Chosun University, Gwangju, Republic of Korea. #Professor, Department of Dental Hygiene, Kangwon National University, Samcheok, Republic of Korea. ††Clinical doctor, Misomore Dental Clinic, Jeonju, Republic of Korea
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Batas L, Stavropoulos A, Papadimitriou S, Nyengaard JR, Konstantinidis A. Evaluation of autogenous PRGF+β-TCP with or without a collagen membrane on bone formation and implant osseointegration in large size bone defects. A preclinicalin vivostudy. Clin Oral Implants Res 2015; 27:981-7. [DOI: 10.1111/clr.12742] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Leonidas Batas
- Department of Preventive Dentistry; Periodontology & Implant Biology; School of Dentistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Andreas Stavropoulos
- Department of Periodontology; Faculty of Odontology; Malmö University; Malmö Sweden
- Center for Experimental and Preclinical Biomedical Research (CEPBR); Athens Greece
| | - Serafim Papadimitriou
- Companion Animal Clinic; School of Veterinary Medicine; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Jens R. Nyengaard
- Stereology and Electron Microscopy; Institute for Clinical Medicine; Aarhus University; Aarhus Denmark
| | - Antonios Konstantinidis
- Department of Preventive Dentistry; Periodontology & Implant Biology; School of Dentistry; Aristotle University of Thessaloniki; Thessaloniki Greece
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Al Nashar A, Yakoob H. Evaluation of the use of plasma rich in growth factors with immediate implant placement in periodontally compromised extraction sites: a controlled prospective study. Int J Oral Maxillofac Surg 2015; 44:507-12. [DOI: 10.1016/j.ijom.2014.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 10/14/2014] [Accepted: 12/01/2014] [Indexed: 12/01/2022]
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Daif ET. Effect of a Multiporous Beta–Tricalicum Phosphate on Bone Density Around Dental Implants Inserted Into Fresh Extraction Sockets. J ORAL IMPLANTOL 2013; 39:339-44. [DOI: 10.1563/aaid-joi-d-11-00079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to assess, via multi-slice helical computerized tomography (CT), the influence of the pure-phase multiporous beta–tricalcium phosphate (beta-TCP) on bone density around dental implants inserted into fresh extraction sockets. Twenty-eight patients (18 women and 10 men), indicated for extraction of their lower premolars and insertion of immediate dental implants, were included in this study. They were randomly divided into two equal groups (14 patients each). Group A received immediate dental implants without any filling material around the implants, while in group B, a pure-phase multiporous beta-TCP was gently packed into the bone gaps around the implants. Three and 6 months after loading the implants, a CT, sagittal and coronal, was made to measure the bone density around the implants. The results of the current study have shown that the mean values of the bone density measurements around the implants in group A were 1150 ± 205 (range, 645–1460) at 3 months and 1245 ± 165 (range, 884–1650) at 6 months after loading the implants. In group B, the mean values of the bone density measurements around the implants were 1280 ± 320 (range, 876–1790) and 1490 ± 358 (range, 1061–1965) at 3 and 6 months after loading the implants, respectively. The statistical analysis of the collected data showed a significant increase in the bone density measurements from 3 to 6 months only in group B (P < .05). Also, the difference between group A and B in the bone density measurements around the implants was statistically significant (P < .05) at only 6 months after loading. On the basis of the results presented in this study, it may be possible to mention that the pure-phase multiporous beta-TCP may enhance the bone density when inserted into the bone gaps around immediate dental implants.
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A. M. Penteado L, E. D. Colombo C, A. P. M. Penteado R, O. Assis A, C. V. Gurgel B. Evaluation of bioactive glass and platelet-rich plasma for bone healing in rabbit calvarial defects. J Oral Sci 2013; 55:225-32. [DOI: 10.2334/josnusd.55.225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Pluemsakunthai W, Kuroda S, Shimokawa H, Kasugai S. A basic analysis of platelet-rich fibrin: distribution and release of platelet-derived growth factor-BB. Inflamm Regen 2013. [DOI: 10.2492/inflammregen.33.164] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Wei LC, Gao SG, Xu M, Jiang W, Tian J, Lei GH. A novel hypothesis: the application of platelet-rich plasma can promote the clinical healing of white-white meniscal tears. Med Sci Monit 2012; 18:HY47-50. [PMID: 22847210 PMCID: PMC3560705 DOI: 10.12659/msm.883254] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The white-white tears (meniscus lesion completely in the avascular zone) are without blood supply and theoretically cannot heal. Basal research has demonstrated that menisci are unquestionably important in load bearing, load redistribution, shock absorption, joint lubrication and the stabilization of the knee joint. It has been proven that partial or all-meniscusectomy results in an accelerated degeneration of cartilage and an increased rate of early osteoarthritis. Knee surgeons must face the difficult decision of removing or, if possible, retaining the meniscus; if it is possible to retain the meniscus, surgeons must address the difficulties of meniscal healing. Some preliminary approaches have progressed to improve meniscal healing. However, the problem of promoting meniscal healing in the avascular area has not yet been resolved. The demanding nature of the approach as well as its low utility and efficacy has impeded the progress of these enhancement techniques. Platelet-rich plasma (PRP) is a platelet concentration derived from autologous blood. In recent years, PRP has been used widely in preclinical and clinical applications for bone regeneration and wound healing. Therefore, we hypothesize that the application of platelet-rich plasma for white-white meniscal tears will be a simple and novel technique of high utility in knee surgery.
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Affiliation(s)
- Li-Cheng Wei
- Department of Orthopaedics, Xiangya Hospital, Central South University, ChangSha, Hunan, China
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Silva RF, Álvarez ME, Ríos DL, López C, Carmona JU, Rezende CMF. Evaluation of the effect of calcium gluconate and bovine thrombin on the temporal release of transforming growth factor beta 1 and platelet-derived growth factor isoform BB from feline platelet concentrates. BMC Vet Res 2012; 8:212. [PMID: 23131192 PMCID: PMC3534502 DOI: 10.1186/1746-6148-8-212] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 10/23/2012] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND There are not reported regarding the protocols for obtaining platelet concentrates (PC) in cats for medical purposes. The objectives of this study were: 1) to describe a manual method for producing two kinds of PC in cats (PC-A and PC-B), 2) to describe the cellular population of the PC, 3) to measure and compare the effect of calcium gluconate (CG) and bovine thrombin (BT) on the temporal release of transforming growth factor beta 1 (TGF-β1) and platelet-derived growth factor type BB (PDGF-BB) at 3 and 12 hours post-activation and 4) to establish correlations between the cellular population of both PCs and the concentration of growth factors (GF). Blood samples were taken from 16 cats for complete blood count, plasma collection and PC preparation. The PC were arbitrarily divided into two fractions, specifically, PC-A (lower fraction) and PC-B (upper fraction). RESULTS The platelet counts were significantly different (P<0.05) between the PC and whole blood but not between the PC fractions. The TGF-β1 concentration efficiencies for PC-A and PC-B activated with CG were 42.86% and 46.54%, and activated with BT were 42.88% and 54.64%, respectively. The PDGF-BB concentration efficiencies for PC-A and PC-B activated with CG were 61.36% and 60.61%, and activated with BT were 65.64% and 72.12%, respectively. The temporal release of GFs showed no statistically significant difference (P>0.05) between the activating substances at the time or for any PC fraction. CONCLUSIONS Whatever the activation means, these preparations of cat PC provide significant concentrations of platelets and GFs for possible clinical or experimental use.
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Affiliation(s)
- Raul F Silva
- Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Caldas, Colombia
- Departamento de Clinica e Cirurgia Veterinárias, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - María E Álvarez
- Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Caldas, Colombia
| | - Diana L Ríos
- Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Caldas, Colombia
| | - Catalina López
- Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Caldas, Colombia
| | - Jorge U Carmona
- Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Caldas, Colombia
| | - Cleuza MF Rezende
- Departamento de Clinica e Cirurgia Veterinárias, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
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Thoma DS, Martin IS, Mühlemann S, Jung RE. Systematic review of pre-clinical models assessing implant integration in locally compromised sites and/or systemically compromised animals. J Clin Periodontol 2012; 39 Suppl 12:37-62. [PMID: 22533946 DOI: 10.1111/j.1600-051x.2011.01833.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The aim was to systematically search the dental literature for pre-clinical models assessing implant integration in locally compromised sites (part 1) and systemically compromised animals (part 2), and to evaluate the quality of reporting of included publications. METHODS A Medline search (1966-2011) was performed, complimented by additional hand searching. The quality of reporting of the included publications was evaluated using the 20 items of the ARRIVE (Animals in Research In Vivo Experiments) guidelines. RESULTS One-hundred and seventy-six (part 1; mean ARRIVE score = 15.6 ± 2.4) and 104 (part 2; 16.2 ± 1.9) studies met the inclusion criteria. The overall mean score for all included studies amounted to 15.8 ± 2.2. Housing (38.3%), allocation of animals (37.9%), numbers analysed (50%) and adverse events (51.4%) of the ARRIVE guidelines were the least reported. Statistically significant differences in mean ARRIVE scores were found depending on the publication date (p < 0.05), with the highest score of 16.7 ± 1.6 for studies published within the last 2 years. CONCLUSIONS A large number of studies met the inclusion criteria. The ARRIVE scores revealed heterogeneity and missing information for selected items in more than 50% of the publications. The quality of reporting shifted towards better-reported pre-clinical trials within recent years.
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Affiliation(s)
- Daniel S Thoma
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland.
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Pal US, Mohammad S, Singh RK, Das S, Singh N, Singh M. Platelet-rich growth factor in oral and maxillofacial surgery. Natl J Maxillofac Surg 2012; 3:118-23. [PMID: 23833484 PMCID: PMC3700143 DOI: 10.4103/0975-5950.111340] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Platelet-rich growth factor is an innovative regenerative therapy used to promote hard and soft tissue healing. It involves the application of autologous platelet-leukocyte-rich plasma containing growth factors and thrombin directly to the site of treatment. It is the intrinsic growth factors released by activated platelets which are concentrated in a topical gel formula. Clinically, it is an affordable treatment with potentially broad spectrum of applications in maxillofacial surgery especially in the treatment of complex or refractory wounds. The present article reviews its various applications not only in the specialization of oral and maxillofacial surgery but also in regenerative medicine.
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Affiliation(s)
- Uma Shanker Pal
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Shadab Mohammad
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Rakesh K. Singh
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Somdipto Das
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Nimisha Singh
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Mayank Singh
- Department of Prosthodontics, King George's Medical University, Lucknow, Uttar Pradesh, India
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Kaur P, Maria A. Efficacy of platelet rich plasma and hydroxyapatite crystals in bone regeneration after surgical removal of mandibular third molars. J Maxillofac Oral Surg 2012; 12:51-9. [PMID: 24431814 DOI: 10.1007/s12663-012-0382-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 04/04/2012] [Indexed: 01/27/2023] Open
Abstract
PURPOSE This study evaluates the efficacy of platelet rich plasma (PRP) & porous hydroxyapatite crystals in bone regeneration after surgical removal of mandibular third molar with the help of radiographs and its comparison with control side. MATERIALS AND METHODS A total of 40 patients; both male and female aged between 18 and 35 years, who had impacted mandibular third molars were randomly selected for this study. Twenty patients were taken for control group and 20 patients for study group. The extraction socket of the study group was packed with PRP and hydroxyapatite granules and that of control group was sutured without PRP and hydroxyapatite. The bone density of both extraction sockets were evaluated radiographically using gray level histogram and compared periodically on immediate postoperative day, 1st and 3rd month postoperatively and postoperative sequelae of both the control group and study group in terms of oedema & pain or any other adverse reactions were also assessed. RESULTS Data suggested evidence of early bone formation and maturation radiographically in study group as compared to control group. The percentage of facial swelling was numerically greater on the control side as compared to the study side, Pain was also assessed with VAS and it was found that the severity of pain was equal in both study and control groups and the results were not significant. CONCLUSION This study clearly indicated a definitive improvement in the wound healing, increase in bone density, which signifies and highlights the use of PRP and hydroxyapatite granules, certainly as a valid method in inducing and accelerating bone regeneration.
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Affiliation(s)
- Preeti Kaur
- Oral & Maxillofacial Surgeon, P, 60/21 Baird Place, Delhi Cantt, New Delhi, 180010 India
| | - Anisha Maria
- Department of Oral and Maxillofacial Surgery, Rishiraj Institute of Dental Sciences, Bhopal, MP India
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Thor AL, Hong J, Kjeller G, Sennerby L, Rasmusson L. Correlation of platelet growth factor release in jawbone defect repair--a study in the dog mandible. Clin Implant Dent Relat Res 2012; 15:759-68. [PMID: 22235990 DOI: 10.1111/j.1708-8208.2011.00405.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Platelet concentrate/platelet-rich plasma (PRP) has been studied extensively in various experimental models and there is some agreement among workers to its early effect in bone regeneration and healing. We have earlier showed in vitro that titanium in whole blood activates the thrombogenic response to a higher degree than PRP and that a fluoridated test surface augmented the effect compared with control. PURPOSE We designed this study to evaluate the effect of PRP and whole blood on bone regeneration in a dog implant defect model and, in addition, the effect of a test surface modified in hydrofluoric acid. A correlation attempt between platelet count, release of growth factors, and bone regeneration was made. MATERIALS AND METHODS Six dogs were used and simultaneously with the experimental surgery and implant installation, autologous PRP was prepared. Defects were prepared (6 mm in diameter and 5 mm deep), and implants were installed (TiO2 gritblasted and hydrofluoric acid treated [test] or TiO2 gritblasted [control], 5 mm in diameter and 9 mm long) in defects filled with either PRP or whole blood. Randomization of sides between PRP and whole blood, and sites for test and control implants were made. Blood samples were collected from PRP and whole blood. The dogs were killed after 5 weeks of healing, and samples with implants and surrounding bone were collected and processed for analysis. Enzyme linked immunosorbent assays were used for detection of growth factors in PRP. RESULTS The mean increase of platelet count was 424% in PRP. A correlation for platelet counts and transforming growth factor β was found in each dog (r(2) = 0.857). Approximately 50% of the region of interest (ROI) in the defects was filled with new bone after 5 weeks. No difference could be observed in ROI by using PRP or whole blood in the defects regarding new bone formation, bone in contact with implant, or distance to first bone contact. However, the fluoridated implants exhibited more new bone formation (p = .03) compared with control, regardless of comparing PRP or whole blood, and also displayed a shorter distance from first bone contact to the margin of the bone envelope (p = .05). CONCLUSIONS Platelet concentrate/PRP failed to show more new bone regeneration in a peri-implant defect model compared with whole blood. Implants treated with hydrofluoric acid displayed higher percentages of bone fill in the defect.
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Affiliation(s)
- Andreas Li Thor
- Department of Surgical Sciences, Oral & Maxillofacial Surgery, Uppsala University, Uppsala, Sweden Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden Department of Oral & Maxillofacial Surgery, Institute of Odontology, The Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden Department of Oral & Maxillofacial Surgery, Institute of Odontology, The Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden Department of Oral & Maxillofacial Surgery, Institute of Odontology, The Sahlgrenska Academy, University of Göteborg, Göteborg, Sweden
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Effect of autologous bone marrow-derived cells associated with guided bone regeneration or not in the treatment of peri-implant defects. Int J Oral Maxillofac Surg 2012; 41:121-7. [DOI: 10.1016/j.ijom.2011.06.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 04/20/2011] [Accepted: 06/07/2011] [Indexed: 12/29/2022]
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Carvalho MD, Suaid FF, Santamaria MP, Casati MZ, Nociti FH, Sallum AW, Sallum EA. Platelet-rich plasma plus bioactive glass in the treatment of intra-bony defects: a study in dogs. J Appl Oral Sci 2011; 19:82-9. [PMID: 21437475 PMCID: PMC4245869 DOI: 10.1590/s1678-77572011000100016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Accepted: 10/17/2009] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE This study was designed to evaluate, histomorphometrically, the association of platelet-rich plasma (PRP) and bioactive glass (BG) in the treatment of periodontal intrabony defects. MATERIAL AND METHODS Nine mongrel dogs were included in the study. Three-wall intrabony defects were surgically created at the mesial and distal aspect of first mandibular molar and exposed to plaque accumulation for 1 month. The defects were randomly assigned to the groups: control, BG, PRP, PRP+BG. Dogs were sacrificed 90 days after the surgeries. The histometric parameters evaluated were: length of sulcular and junctional epithelium, connective tissue adaptation, new cementum, new bone, defect extension and area of new bone filling the defect. RESULTS A superior area of new bone was observed in PRP+BG and BG (13.80 ± 2.32 mm² and 15.63 ± 2.64 mm², respectively) when compared to the other groups (8.19 ± 1.46 mm² and 8.81 ± 1.47 mm² for control and PRP, respectively). No statistically significant differences were observed in the remaining parameters. CONCLUSIONS Within the limits of this study, it may be concluded that PRP failed to provide statistically significant improvements in the histometric parameters.
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Affiliation(s)
- Marcelo Diniz Carvalho
- Division of Periodontics, Department of Prosthodontics and Periodontics, Dental School of Manaus, State University of Amazonas, Manaus, AM, Brazil
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Bassi APF, Carvalho PSPD. Repair of bone cavities in dog's mandible filled with inorganic bovine bone and bioactive glass associated with platelet rich plasma. Braz Dent J 2011; 22:14-20. [DOI: 10.1590/s0103-64402011000100002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the effect of platelet rich plasma (PRP) associated to bovine inorganic bone (Bio-Oss®; Geistlich) or bioactive glass (Bio-Gran®; Orthovita, Implant Innovations) on bone healing. Bone cavities were prepared in both sides of the mandible of 4 adult male dogs. The cavities were divided into 4 groups according to the filling material as follows: control, PRP, PRP/Bio-Oss, PRP/Bio-Gran. The animals were sacrificed after 120 days and histological and histomorphometrical analysis was performed. The control group showed 80.6% of bone formation in the longitudinal sections at 6 mm depth and 83.7% at 13 mm depth. The transverse sections displayed 74.2% at both 6 and 13 mm depths. The PRP group showed 21.1% of bone formation in the longitudinal sections at 6 mm depth, and 23.1% at 13 mm depth. The transverse sections presented 28.98% of bone formation at 6 mm depth and 41.2% at 13 mm depth. The PRP/Bio-Gran group showed 25.1% of bone formation in the longitudinal sections at 6 mm depth and 30.4% at 13 mm depth. In the transverse sections, the bone formation was 43.0% at 6 mm depth and 39.7% at 13 mm depth. The PRP/Bio-Oss group showed 35.5% of bone formation in the longitudinal sections at 6 mm depth and 42% at 13 mm depth. In the transversal sections, the bone formation was 26.8% and 31.2% at the depths of 6 and 13 mm, respectively. PRP alone or associated with bovine inorganic bone or bioglass had no significant effect in bone healing.
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Andrade MGS, Moreira DC, Dantas DB, Sá CN, de Bittencourt TCBDSC, Sadigursky M. Pattern of osteogenesis during onlay bone graft healing. ACTA ACUST UNITED AC 2010; 110:713-9. [DOI: 10.1016/j.tripleo.2010.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Revised: 02/17/2010] [Accepted: 03/14/2010] [Indexed: 10/19/2022]
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Ribeiro FV, Suaid FF, Ruiz KGS, Rodrigues TL, Carvalho MD, Nociti FH, Sallum EA, Casati MZ. Peri-implant reconstruction using autologous periosteum-derived cells and guided bone regeneration. J Clin Periodontol 2010; 37:1128-36. [DOI: 10.1111/j.1600-051x.2010.01635.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Garcia RV, Gabrielli MAC, Hochuli-Vieira E, Spolidorio LC, Filho JGP, Neto FAD, de Cardoso LAG, Shibli JA. Effect of platelet-rich plasma on peri-implant bone repair: a histologic study in dogs. J ORAL IMPLANTOL 2010; 36:281-90. [PMID: 20735264 DOI: 10.1563/aaid-joi-d-09-00056] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study evaluated the effect of platelet-rich plasma (PRP) on peri-implant bone healing. A total of 9 mongrel dogs received 36 dental implants with sandblasted acid-etched surface in lower jaws in a split-mouth design: in the PRP group (n=18 implants) the implants were placed in association with PRP, and in the control group (n=18 implants) the implants were placed without PRP. Biopsies were obtained and prepared for histologic and histometric analysis after 15, 30, and 55 days of healing. The biopsies retrieved at 15 days showed delicate bone trabeculae formed by immature bone with presence of numerous osteoblasts for both groups. At 30 days the trabeculae presented reversal lines and evident lamellar disposition, where some thread spaces were filled by bone and dense connective tissue. At 55 days, bone healing was not altered in the control group, and histologic aspects were variable for the group treated with PRP. There was no significant difference between the groups for bone-to-implant contact (P>.05). PRP did not enhance bone formation around sandblasted acid-etched implants.
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Affiliation(s)
- Ricardo V Garcia
- Division of Periodontology, Dental School at Araraquara, São Paulo State University, São Paulo, Brazil.
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Ribeiro FV, Suaid FF, Ruiz KGS, Salmon CR, Paparotto T, Nociti FH, Sallum EA, Casati MZ. Periosteum-derived cells as an alternative to bone marrow cells for bone tissue engineering around dental implants. A histomorphometric study in beagle dogs. J Periodontol 2010; 81:907-16. [PMID: 20450354 DOI: 10.1902/jop.2010.090604] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND The aim of this study is to investigate the potential use of periosteum-derived cells (PCs) for tissue engineering in peri-implant defects. METHODS Bone marrow cells (BMCs) and PCs were harvested from seven adult beagle dogs, cultured in vitro, and phenotypically characterized with regard to their osteogenic properties. The animals were then subjected to teeth extraction, and 3 months later, two implant sites were drilled, bone dehiscences created, and dental implants placed. Dehiscences were randomly assigned to one of two groups: PCs (PCs + carrier) and BMCs (BMCs + carrier). After 3 months, the animals were sacrificed and the implants with adjacent hard tissues were processed for undecalcified sections. Bone-to-implant contact, bone fill within the limits of implant threads, and new bone area in a zone lateral to the implant were histometrically obtained. RESULTS In vitro, phenotypic characterization demonstrated that both cell populations presented osteogenic potential, as identified by the mineral nodule formation and the expression of bone markers. Histometrically, an intergroup analysis showed that both cell-treated defects had similar bone fill within the limits of implant threads and bone-to-implant contact (P >0.05), and although a trend toward higher new bone area values was found for the PC group, there was no significant difference between the experimental groups (P >0.05). CONCLUSIONS Periosteal and bone marrow cells presented a similar potential for bone reconstruction. As such, periosteum may be considered as an alternative source of osteogenic cells in implant dentistry.
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Affiliation(s)
- Fernanda V Ribeiro
- Department of Prosthodontics and Periodontics, School of Dentistry at Piracicaba, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
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Jang ES, Park JW, Kweon H, Lee KG, Kang SW, Baek DH, Choi JY, Kim SG. Restoration of peri-implant defects in immediate implant installations by Choukroun platelet-rich fibrin and silk fibroin powder combination graft. ACTA ACUST UNITED AC 2010; 109:831-6. [PMID: 20163973 DOI: 10.1016/j.tripleo.2009.10.038] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 10/07/2009] [Accepted: 10/16/2009] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The objective of this study was to determine the capability of silk fibroin powder as a biomaterial template for the restoration of peri-implant defects when mixed with Choukroun platelet-rich fibrin (PRF) in vivo. STUDY DESIGN Ten New Zealand white rabbits were used for this study. Using a trephine bur (diameter 7.0 mm), 2 monocortical defects were prepared. Subsequently, 2 dental implants were installed into the tibia (diameter 3.0 mm, length 10.0 mm). In the experimental group, the peri-implant defect was filled with a combination graft of silk fibroin powder and Choukroun PRF. The control was left in an unfilled state. The animals were killed at 8 weeks. Subsequently, a removal torque test and a histomorphometric analysis were done. RESULTS The removal torque for the experimental group was 30.34 +/- 5.06 N.cm, whereas it was 21.86 +/- 3.39 N.cm for the control. The difference between the 2 groups was statistically significant (P = .010). Mean new bone formation was 51.93 +/- 27.90% in the experimental group and 11.67 +/- 15.12% in the control (P = .003). Mean bone-to-implant contact was 43.07 +/- 21.96% in the experimental group and 15.37 +/- 23.84% in the control (P = .002). CONCLUSION A peri-implant defect can be successfully repaired by the application of Choukroun PRF and silk fibroin powder.
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Affiliation(s)
- Eun-Sik Jang
- Department of Oral and Maxillofacial Surgery, Hallym University, Kyoungkido, Korea
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Iino M, Fukuda M, Nagai H, Hamada Y, Yamada H, Nakaoka K, Mori Y, Chikazu D, Saijo H, Seto I, Ohkubo K, Takato T. Evaluation of 15 mandibular reconstructions with Dumbach Titan Mesh-System and particulate cancellous bone and marrow harvested from bilateral posterior ilia. ACTA ACUST UNITED AC 2009; 107:e1-8. [DOI: 10.1016/j.tripleo.2008.12.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Revised: 10/07/2008] [Accepted: 12/14/2008] [Indexed: 10/21/2022]
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Donovan TE, Becker W, Brodine AH, Burgess JO, Cagna DR, Summitt JB. Annual review of selected dental literature: report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2008; 100:110-41. [PMID: 18672128 DOI: 10.1016/s0022-3913(08)60159-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Terence E Donovan
- Department of Operative Dentistry, University of North Carolina, Chapel Hill, NC 27599-7450, USA. Terry_Donovan @dentistry.unc.edu
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Suaid FF, Carvalho MD, Santamaria MP, Casati MZ, Nociti FH, Sallum AW, Sallum EA. Platelet-rich plasma and connective tissue grafts in the treatment of gingival recessions: a histometric study in dogs. J Periodontol 2008; 79:888-95. [PMID: 18454668 DOI: 10.1902/jop.2008.070339] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The aim of this study was to histometrically evaluate the healing process of gingival recessions treated with platelet-rich plasma (PRP) in combination with a subepithelial connective tissue graft (SCTG) and to compare it to that obtained with SCTG alone. METHODS Six mongrel dogs were used in the experiment. Gingival recessions (5 x 7 mm) were surgically created and exposed to plaque accumulation for 1 month. Contralateral defects were randomly assigned to the test group (SCTG + PRP) or the control group (SCTG). Dogs were sacrificed 45 days after the surgeries, and the blocks containing the experimental specimens were processed for histologic analysis. The histometric parameters evaluated were length of sulcular and junctional epithelium, connective tissue adaptation, new cementum, new bone, and defect extension. RESULTS A greater length of new cementum was observed in the sites treated with PRP (2.18 +/- 0.78 mm) compared to the control group (1.19 +/- 0.62 mm) (P < or =0.05). No statistically significant differences were observed in the remaining parameters. The extension of total epithelium (sulcular and junctional epithelium) was 2.04 +/- 0.57 mm for the test group and 2.49 +/- 0.82 mm for the control group. The new connective tissue adjacent to the root without cementum formation was 0.29 +/- 0.28 mm and 0.23 +/- 0.18 mm for the test and control groups, respectively. Bone position was -0.57 +/- 0.95 mm for the test group and -0.46 +/- 1.34 mm for the control group. CONCLUSION Within the limits of this study, the combination of PRP with SCTG was more effective in promoting new cementum formation than the graft alone.
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Affiliation(s)
- Fabricia Ferreira Suaid
- Department of Prosthodontics and Periodontics, Division of Periodontics, School of Dentistry at Piracicaba, State University of Campinas, Avenida Limeira 901, Areião, Piracicaba, SP, Brazil
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Improved treatment of mandibular odontogenic cysts with platelet-rich gel. ACTA ACUST UNITED AC 2008; 105:423-9. [DOI: 10.1016/j.tripleo.2007.07.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2007] [Revised: 07/11/2007] [Accepted: 07/23/2007] [Indexed: 11/19/2022]
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Cáceres M, Hidalgo R, Sanz A, Martínez J, Riera P, Smith PC. Effect of Platelet-Rich Plasma on Cell Adhesion, Cell Migration, and Myofibroblastic Differentiation in Human Gingival Fibroblasts. J Periodontol 2008; 79:714-20. [DOI: 10.1902/jop.2008.070395] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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