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Jeong CH, Lim SY, Um JE, Lim HW, Hwang KH, Park KM, Yun JS, Kim D, Huh JK, Kim HS, Yook JI, Kim NH, Kwak YH. Micellized protein transduction domain-bone morphogenetic protein-2 accelerates bone healing in a rat tibial distraction osteogenesis model. Acta Biomater 2023; 170:360-375. [PMID: 37611691 DOI: 10.1016/j.actbio.2023.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023]
Abstract
The clinical application of growth factors such as recombinant human bone morphogenetic protein-2 (rh-BMP-2), for functional bone regeneration remains challenging due to limited in vivo efficacy and adverse effects of previous modalities. To overcome the instability and short half-life of rh-BMP-2 in vivo, we developed a novel osteogenic supplement by fusing a protein transduction domain (PTD) with BMP-2, effectively creating a prodrug of BMP-2. In this study, we first created an improved PTD-BMP-2 formulation using lipid nanoparticle (LNP) micellization, resulting in downsizing from micrometer to nanometer scale and achieving a more even distribution. The micellized PTD-BMP-2 (mPTD-BMP-2) demonstrated improved distribution and aggregation profiles. As a prodrug of BMP-2, mPTD-BMP-2 successfully activated Smad1/5/8 and induced mineralization with osteogenic gene induction in vitro. In vivo pharmacokinetic analysis revealed that mPTD-BMP-2 had a much more stable pharmacokinetic profile than rh-BMP-2, with a 7.5-fold longer half-life. The in vivo BMP-responsive element (BRE) reporter system was also successfully activated by mPTD-BMP-2. In the in vivo rat tibia distraction osteogenesis (DO) model, micro-computed tomography (micro-CT) scan findings indicated that mPTD-BMP-2 significantly increased bone volume, bone surface, axis moment of inertia (MOI), and polar MOI. Furthermore, it increased the expression of osteogenesis-related genes, and induced bone maturation histologically. Based on these findings, mPTD-BMP-2 could be a promising candidate for the next-generation osteogenesis drug to promote new bone formation in DO surgery. STATEMENT OF SIGNIFICANCE: This study introduces micellized bone morphogenetic protein-2 (mPTD-BMP-2), a next-generation osteogenic supplement that combines protein transduction domain (PTD) and nano-sized micelle formulation technique to improve transduction efficiency and stability. The use of PTD represents a novel approach, and our results demonstrate the superiority of mPTD-BMP-2 over rh-BMP-2 in terms of in vivo pharmacokinetic profile and osteogenic potential, particularly in a rat tibial model of distraction osteogenesis. These findings have significant scientific impact and potential clinical applications in the treatment of bone defects that require distraction osteogenesis. By advancing the field of osteogenic supplements, our study has the potential to contribute to the development of more effective treatments for musculoskeletal disorders.
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Affiliation(s)
- Cheol Hee Jeong
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, 03722, Korea; Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Korea
| | - Song-Yi Lim
- Department of Orthopedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, 05505, Korea
| | - Jo Eun Um
- MET Life Science, Seoul, 03722, Korea
| | - Hyo Won Lim
- Department of Orthopedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, 05505, Korea
| | | | - Kyeong-Mee Park
- Department of Advanced General Dentistry, Yonsei University College of Dentistry, Seoul, 03722, Korea
| | - Jun Seop Yun
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, 03722, Korea; Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Korea
| | - Dohun Kim
- Department of Orthopedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, 05505, Korea
| | - Jong-Ki Huh
- Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, 06273, Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, 03722, Korea; Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Korea; MET Life Science, Seoul, 03722, Korea
| | - Jong In Yook
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, 03722, Korea; Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Korea; MET Life Science, Seoul, 03722, Korea
| | - Nam Hee Kim
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Korea; MET Life Science, Seoul, 03722, Korea.
| | - Yoon Hae Kwak
- Department of Orthopedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, 05505, Korea.
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Silva SK, Plepis AMG, Martins VDCA, Horn MM, Buchaim DV, Buchaim RL, Pelegrine AA, Silva VR, Kudo MHM, Fernandes JFR, Nazari FM, da Cunha MR. Suitability of Chitosan Scaffolds with Carbon Nanotubes for Bone Defects Treated with Photobiomodulation. Int J Mol Sci 2022; 23:ijms23126503. [PMID: 35742948 PMCID: PMC9223695 DOI: 10.3390/ijms23126503] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 12/11/2022] Open
Abstract
Biomaterials have been investigated as an alternative for the treatment of bone defects, such as chitosan/carbon nanotubes scaffolds, which allow cell proliferation. However, bone regeneration can be accelerated by electrotherapeutic resources that act on bone metabolism, such as low-level laser therapy (LLLT). Thus, this study evaluated the regeneration of bone lesions grafted with chitosan/carbon nanotubes scaffolds and associated with LLLT. For this, a defect (3 mm) was created in the femur of thirty rats, which were divided into 6 groups: Control (G1/Control), LLLT (G2/Laser), Chitosan/Carbon Nanotubes (G3/C+CNTs), Chitosan/Carbon Nanotubes with LLLT (G4/C+CNTs+L), Mineralized Chitosan/Carbon Nanotubes (G5/C+CNTsM) and Mineralized Chitosan/Carbon Nanotubes with LLLT (G6/C+CNTsM+L). After 5 weeks, the biocompatibility of the chitosan/carbon nanotubes scaffolds was observed, with the absence of inflammatory infiltrates and fibrotic tissue. Bone neoformation was denser, thicker and voluminous in G6/C+CNTsM+L. Histomorphometric analyses showed that the relative percentage and standard deviations (mean ± SD) of new bone formation in groups G1 to G6 were 59.93 ± 3.04a (G1/Control), 70.83 ± 1.21b (G2/Laser), 70.09 ± 4.31b (G3/C+CNTs), 81.6 ± 5.74c (G4/C+CNTs+L), 81.4 ± 4.57c (G5/C+CNTsM) and 91.3 ± 4.81d (G6/C+CNTsM+L), respectively, with G6 showing a significant difference in relation to the other groups (a ≠ b ≠ c ≠ d; p < 0.05). Immunohistochemistry also revealed good expression of osteocalcin (OC), osteopontin (OP) and vascular endothelial growth factor (VEGF). It was concluded that chitosan-based carbon nanotube materials combined with LLLT effectively stimulated the bone healing process.
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Affiliation(s)
- Samantha Ketelyn Silva
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
| | - Ana Maria Guzzi Plepis
- Interunits Graduate Program in Bioengineering (EESC/FMRP/IQSC), University of Sao Paulo (USP), Sao Carlos 13566-590, Brazil;
- Sao Carlos Institute of Chemistry, University of Sao Paulo (USP), Sao Carlos 13566-590, Brazil;
| | | | - Marilia Marta Horn
- Physical Chemistry of Nanomaterials, Institute of Chemistry and Center for Interdisciplinary and Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany;
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, Brazil;
- Teaching and Research Coordination of the Medical School, University Center of Adamantina (UniFAI), Adamantina 17800-000, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of Sao Paulo, Bauru 17012-901, Brazil;
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo 05508-270, Brazil
| | | | - Vinícius Rodrigues Silva
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
| | - Mateus Hissashi Matsumoto Kudo
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
| | - José Francisco Rebello Fernandes
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
| | - Fabricio Montenegro Nazari
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
| | - Marcelo Rodrigues da Cunha
- Department of Morphology and Pathology, Jundiaí Medical School, Jundiaí 13202-550, Brazil; (S.K.S.); (V.R.S.); (M.H.M.K.); (J.F.R.F.); (F.M.N.)
- Interunits Graduate Program in Bioengineering (EESC/FMRP/IQSC), University of Sao Paulo (USP), Sao Carlos 13566-590, Brazil;
- Correspondence: ; Tel.: +55-11-3395-2100
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Liu Z, Liu Q, Guo H, Liang J, Zhang Y. Overview of Physical and Pharmacological Therapy in Enhancing Bone Regeneration Formation During Distraction Osteogenesis. Front Cell Dev Biol 2022; 10:837430. [PMID: 35573673 PMCID: PMC9096102 DOI: 10.3389/fcell.2022.837430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
Distraction osteogenesis (DO) is a kind of bone regeneration technology. The principle is to incise the cortical bone and apply continuous and stable distraction force to the fractured end of the cortical bone, thereby promoting the proliferation of osteoblastic cells in the tension microenvironment and stimulating new bone formation. However, the long consolidation course of DO presumably lead to several complications such as infection, fracture, scar formation, delayed union and malunion. Therefore, it is of clinical significance to reduce the long treatment duration. The current treatment strategy to promote osteogenesis in DO includes gene, growth factor, stem-cell, physical and pharmacological therapies. Among these methods, pharmacological and physical therapies are considered as safe, economical, convenience and effective. Recently, several physical and pharmacological therapies have been demonstrated with a decent ability to enhance bone regeneration during DO. In this review, we have comprehensively summarized the latest evidence for physical (Photonic, Waves, Gas, Mechanical, Electrical and Electromagnetic stimulation) and pharmacological (Bisphosphonates, Hormone, Metal compounds, Biologics, Chinese medicine, etc) therapies in DO. These evidences will bring novel and significant information for the bone healing during DO in the future.
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Affiliation(s)
- Ze Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qi Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hongbin Guo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jieyu Liang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Jieyu Liang, ; Yi Zhang,
| | - Yi Zhang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Jieyu Liang, ; Yi Zhang,
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In vivo efficacy of low-level laser therapy on bone regeneration. Lasers Med Sci 2022; 37:2209-2216. [PMID: 35022870 DOI: 10.1007/s10103-021-03487-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE In clinical use of low-level laser therapy for bone regeneration (LLLT), application protocol (dose, duration, and repetitions) has not been established. This study aimed to depict a reliable dosage of LLLT by evaluating the efficacy of different dosing of LLLT (diode) on the healing of rabbit cranial defects. METHODS Critical size defects were prepared in calvarias of 26 New Zealand White Rabbits in such each animal containing both test and control groups. Test groups were irradiated with 4 Joule/cm2 (j/cm2), 6 j/cm2, and 8 j/cm2. The rabbits were subjected to six times of laser treatments in 10 days. At the end of the second week, 5 rabbits were sacrificed for histopathological and immunohistochemical analyses. At the 4th and 8th weeks, 20 rabbits (10 each) were sacrificed for micro-CT and histopathological analyses. RESULTS Micro-CT evaluation revealed improved new bone formation in all test groups compared to the control group. 6 j/cm2 group demonstrated the highest bone formation. The highest bone morphogenic protein -2 levels were found in the 4 j/cm2 group. Osteocalcin expression was significantly higher in 4 j/cm2 group. CONCLUSIONS Our findings indicate that LLLT have a positive effect on new bone formation. The high efficacy of doses of 4 j/cm2 and 6 j/cm2 is promising to promote early bone healing.
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Niño-Sandoval TC, Rodrigues EDR, Vasconcelos BC. Latency phase in mandibular distraction osteogenesis: a systematic review in animal models. Br J Oral Maxillofac Surg 2021; 59:993-1004. [PMID: 34531073 DOI: 10.1016/j.bjoms.2020.12.012] [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: 10/13/2020] [Accepted: 12/10/2020] [Indexed: 12/09/2022]
Abstract
The aim of the present study was to perform a systematic review of the need for the latency period in distraction osteogenesis to obtain adequate bone formation. Searches were performed in the Web of Science, Pubmed/MEDLINE, Scopus, and Cochrane electronic databases. Nine articles were selected for qualitative analysis. Quality assessment was performed using the 10-item SYRCLE tool. Clinical stability was evaluated in two articles, histology was analysed in seven, histomorphometry was analysed in three, and mechanical testing was used in two. The results favoured the five-day latency group in two studies and the seven-day latency group in one. No differences were found between latency and no-latency groups in six studies. A latency period greater than seven days did not provide any additional benefit. Important risks of bias were found in all articles. Some of the results were influenced by uncontrolled intervening factors, such as consolidation time. The need for a latency period for distraction osteogenesis in animal models is not yet clear. Caution must be exercised when extrapolating the results of animal protocols to applications with humans in the clinical setting.
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Affiliation(s)
- T C Niño-Sandoval
- Department of Oral and Maxillofacial Surgery and Traumatology, University of Pernambuco - School of Dentistry (UPE/FOP), University Hospital Oswaldo Cruz, Rua Arnóbio Marquês, 310 - Santo Amaro, Recife, PE, CEP: 50.100-130, Brazil.
| | - E D R Rodrigues
- Department of Oral and Maxillofacial Surgery and Traumatology, University of Pernambuco - School of Dentistry (UPE/FOP), University Hospital Oswaldo Cruz, Rua Arnóbio Marquês, 310 - Santo Amaro, Recife, PE, CEP: 50.100-130, Brazil.
| | - B C Vasconcelos
- Department of Oral and Maxillofacial Surgery and Traumatology, University of Pernambuco - School of Dentistry (UPE/FOP), University Hospital Oswaldo Cruz, Rua Arnóbio Marquês, 310 - Santo Amaro, Recife, PE, CEP: 50.100-130, Brazil.
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Hatefi S, Alizargar J, Le Roux F, Hatefi K, Etemadi Sh M, Davids H, Hsieh NC, Smith F, Abou-El-Hossein K. Review of physical stimulation techniques for assisting distraction osteogenesis in maxillofacial reconstruction applications. Med Eng Phys 2021; 91:28-38. [PMID: 34074463 DOI: 10.1016/j.medengphy.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 02/17/2021] [Accepted: 03/24/2021] [Indexed: 01/24/2023]
Abstract
Distraction Osteogenesis (DO) is an emerging limb lengthening method for the reconstruction of the hard tissue and the surrounding soft tissue, in different human body zones. DO plays an important role in treating bone defects in Maxillofacial Reconstruction Applications (MRA) due to reduced side effects and better formed bone tissue compared to conventional reconstruction methods i.e. autologous bone graft, and alloplast implantation. Recently, varying techniques have been evaluated to enhance the characteristics of the newly formed tissues and process parameters. Promising results have been shown in assisting DO treatments while benefiting bone formation mechanisms by using physical stimulation techniques, including photonic, electromagnetic, electrical, and mechanical stimulation technique. Using assisted DO techniques has provided superior results in the outcome of the DO procedure compared to a standard DO procedure. However, DO methods, as well as assisting technologies applied during the DO procedure, are still emerging. Studies and experiments on developed solutions related to this field have been limited to animal and clinical trials. In this review paper, recent advances in physical stimulation techniques and their effects on the outcome of the DO treatment in MRA are surveyed. By studying the effects of using assisting techniques during the DO treatment, enabling an ideal assisted DO technique in MRA can be possible. Although mentioned techniques have shown constructive effects during the DO procedure, there is still a need for more research and investigation to be done to fully understand the effects of assisting techniques and advanced technologies for use in an ultimate DO procedure in MRA.
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Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran.
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Nan-Chen Hsieh
- Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Farouk Smith
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
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da Silva TMV, Melo TS, de Alencar RC, Pereira JRD, Leão JC, Silva IHM, Gueiros LA. Photobiomodulation for mucosal repair in patients submitted to dental extraction after head and neck radiation therapy: a double-blind randomized pilot study. Support Care Cancer 2020; 29:1347-1354. [PMID: 32642953 DOI: 10.1007/s00520-020-05608-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 06/26/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the efficacy of photobiomodulation therapy (PBMT) on the mucosal healing of patients submitted to simple dental extractions after head and neck radiation therapy (HNRT). METHODS Forty surgical procedures were randomly assigned into two groups: G1: dental extraction + PBMT (n = 19) and G2: dental extraction + sham-PBMT (n = 21). All patients received antibiotic therapy and the surgical alveolotomy to promote primary closure of the surgical site. Group 1 was submitted to PMBT according to the following parameters: 808 nm, 40 mW, 100 J/cm2, 70 s, 2.8 J/point, 14 J/session, and area of 0.028cm2. The primary outcome was complete mucosal lining at 14 days, and the secondary outcomes were the presence of infection, postoperative pain, and analgesics intake at 7 days. The patients were evaluated every 7 days until 28 days. RESULTS Alveolar mucosal lining was faster in G1, and at 14 postoperative days, 94.7% patients evolved with complete alveolar mucosal lining compared to no patient from G2 (p < 0.001). Patients from G1 reported postoperative pain less frequently (G1 = 4, 21.1% × G2 = 14, 66.7%, p = 0.005), and also reported lower intake of analgesic pills at D7 (21.1% × 66.7%, p = 0.005%). PBMT had a significant positive impact on both postoperative pain (NNT = 2.192, CI95% = 1.372-5.445) and mucosal healing (NNT = 1.056, CI95% = 0.954-1.181). CONCLUSIONS This preliminary study strongly supports the use of PMBT to promote surgical alveolar mucosal lining in a shorter time and with less postoperative pain.
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Affiliation(s)
- Thyago Morais Vicente da Silva
- Oral Medicine Unit, Hospital das Clínicas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CDU, Recife, PE, 50670-901, Brazil.,Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, Brazil
| | - Thayanara Silva Melo
- Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, Brazil
| | - Romulo Cesar de Alencar
- Oral Medicine Unit, Hospital das Clínicas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CDU, Recife, PE, 50670-901, Brazil
| | - José Ricardo Dias Pereira
- Oral Medicine Unit, Hospital das Clínicas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CDU, Recife, PE, 50670-901, Brazil
| | - Jair Carneiro Leão
- Oral Medicine Unit, Hospital das Clínicas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CDU, Recife, PE, 50670-901, Brazil.,Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Luiz Alcino Gueiros
- Oral Medicine Unit, Hospital das Clínicas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CDU, Recife, PE, 50670-901, Brazil. .,Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, Brazil.
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Demirsoy KK, Kurt G. Use of Laser Systems in Orthodontics. Turk J Orthod 2020; 33:133-140. [PMID: 32637195 PMCID: PMC7316475 DOI: 10.5152/turkjorthod.2020.18099] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 08/25/2019] [Indexed: 01/01/2023]
Abstract
Laser systems have been used in the practice of dentistry for >35 years. Laser systems have so many advantages, such as increase patient cooperation, reduce the duration of treatment time, and help the orthodontists to enhance the design of a patient's smile to improve treatment efficacy, and the success of orthodontic treatments can also be improved by diminishing the orthodontic pain and the discomfort of the patients. Laser systems also have some disadvantages, such as cost, large space requirements for some types, and high-risk potential for physician and patient if not used at the appropriate wavelength and power density, that is why before incorporating lasers into clinical practice, the physician must fully understand the basic science, safety protocol, and risks associated with them. Lasers have many applications in orthodontics, including accelerating tooth movement, bonding and debonding processes, pain reduction, bone regeneration, etching procedures, increase mini-implant stability, soft tissue procedures (gingivectomy, frenectomy, operculectomy, papilla flattening, uncovering temporary anchorage devices, ablation of aphthous ulcerations, and exposure of impacted teeth), fiberotomy, scanning systems, and welding procedures. In reviewing the literature on the use of laser in orthodontics, many studies have been conducted. The purpose of the present study was to give information about the use of laser in the field of orthodontics, the effects of laser during the postoperative period, and its advantages and disadvantages and to provide general information about the requirements to be considered during the use of laser.
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Affiliation(s)
- Kevser Kurt Demirsoy
- Department of Orthodontics, Faculty of Dentistry Nevşehir Hacı Bektaş Veli University, Nevsehir, Turkey
| | - Gökmen Kurt
- Department of Orthodontics, Bezmialem Vakıf University School of Dentistry, İstanbul, Turkey
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Sarmadi S, Tanbakuchi B, Hesam Arefi A, Chiniforush N. The Effect of Photobiomodulation on Distraction Osteogenesis. J Lasers Med Sci 2019; 10:330-337. [PMID: 31875127 DOI: 10.15171/jlms.2019.53] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Distraction osteogenesis (DO) is a surgical procedure to increase bone height in different body parts. DO includes a surgical incision, wherein the bone is cut and a device is installed for further separation of the two ends by gradual unscrewing of the device screw. New bone gradually forms and fills the gap, and the bone height increases as such. Photobiomodulation (PBM) or low-level laser therapy (LLLT) enhances the formation of soft and hard tissue such as bone and can, therefore, accelerate the process of DO and shorten the duration of different surgical phases of DO such as latency, activation, and consolidation. Different laser types with variable exposure settings and protocols have been used for this purpose. The gallium-aluminum-arsenide (GaAlAs) diode laser is the most commonly used laser type for LLLT. This study reviews 18 published articles on the effects of LLLT on DO and summarizes their findings to further elucidate this topic.
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Affiliation(s)
- Sarvin Sarmadi
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrad Tanbakuchi
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Nasim Chiniforush
- Laser Research Center of Dentistry (LRCD), Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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Khalil NM, Noureldin MG. Comparison of Single Versus Multiple Low-Level Laser Applications on Bone Formation in Extraction Socket Healing in Rabbits (Histologic and Histomorphometric Study). J Oral Maxillofac Surg 2019; 77:1760-1768. [DOI: 10.1016/j.joms.2019.03.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 01/04/2023]
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