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Abd-Elhaleem Othman MA, Zaky AA, Eltayeb EA, Khalil NM. A radiographic and histological study to compare red (650 nm) versus near infrared (810 nm) diode lasers photobiomodulation for alveolar socket preservation. Sci Rep 2024; 14:6871. [PMID: 38519552 PMCID: PMC10959980 DOI: 10.1038/s41598-024-57114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
Previous findings indicated that the laser photobiomodulation is more effective than the control or placebo in preserving the alveolar socket. This study aimed to compare two different lasers regarding their effectiveness in aiding alveolar socket preservation. Twenty extraction sockets were selected then divided into two equal groups. Group A was exposed to 650 nm Diode laser, and Group B to 810 nm Diode laser following the same protocol and parameters after a standard alveolar socket preservation procedure with collagen plug. Radiographic analysis with cone beam computed tomography was done to compare the alveolar bone surface area immediately after extraction and three months post-operatively, while bone samples collected before implant drilling were histologically examined for newly formed bone evaluation and histomorphometric analysis in terms of percentage of new bone surface area, percentage of unmineralized bone and finally, immunohistochemical analysis of Osteocalcin reaction surface area as well as optical density. Radiographically, infrared (810 nm) Diode effect on alveolar bone surface area has significantly exceeded the red laser, while histologically, red (650 nm) Diode has demonstrated statistical significance regarding all parameters; newly formed bone surface area percentage, unmineralized bone area percentage and finally Osteocalcin bone marker reaction surface area percentage and optical density. Under the specified conditions and laser parameters, photobiomodulation using the 810 nm Diode got the upper hand radiographically, yet histologically, the red 650 nm Diode managed to dominate all histological parameters when both employed as an adjunct to alveolar socket preservation procedures.
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Affiliation(s)
| | - Ahmed Abbas Zaky
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Elsayed Abdullah Eltayeb
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Nesma Mohamed Khalil
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Amadeu de Oliveira F, Tokuhara CK, Veeriah V, Domezi JP, Santesso MR, Cestari TM, Ventura TMO, Matos AA, Dionísio T, Ferreira MR, Ortiz RC, Duarte MAH, Buzalaf MAR, Ponce JB, Sorgi CA, Faccioli LH, Buzalaf CP, de Oliveira RC. The Multifarious Functions of Leukotrienes in Bone Metabolism. J Bone Miner Res 2023; 38:1135-1153. [PMID: 37314430 DOI: 10.1002/jbmr.4867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
Leukotrienes (LTs) are derived from arachidonic acid metabolism by the 5-lipoxygenase (5-LO) enzyme. The production of LTs is stimulated in the pathogenesis of rheumatoid arthritis (RA), osteoarthritis, and periodontitis, with a relevant contribution to bone resorption. However, its role in bone turnover, particularly the suppression of bone formation by modulating the function of osteoclasts and osteoblasts, remains unclear. We investigated the effects of LTs on bone metabolism and their impact on osteogenic differentiation and osteoclastogenesis using a 5-LO knockout (KO) mouse model. Results from micro-computed tomography (μCT) analysis of femur from 8-week-old 5-LO-deficient mice showed increased cortical bone and medullary region in females and males and decreased trabecular bone in females. In the vertebra, we observed increased marrow area in both females and males 5-LO KO and decreased trabecular bone only in females 5-LO KO. Immunohistochemistry (IHC) analysis showed higher levels of osteogenic markers tissue-nonspecific alkaline phosphatase (TNAP) and osteopontin (OPN) and lower expression of osteoclastogenic marker tartrate-resistant acid phosphatase (TRAP) in the femurs of 5-LO KO mice versus wild-type (WT). Alkaline phosphatase activity and mineralization assay results showed that the 5-LO absence enhances osteoblasts differentiation and mineralization but decreases the proliferation. Alkaline phosphatase (ALP), Bglap, and Sp7 gene expression were higher in 5-LO KO osteoblasts compared to WT cells. Eicosanoids production was higher in 5-LO KO osteoblasts except for thromboxane 2, which was lower in 5-LO-deficient mice. Proteomic analysis identified the downregulation of proteins related to adenosine triphosphate (ATP) metabolism in 5-LO KO osteoblasts, and the upregulation of transcription factors such as the adaptor-related protein complex 1 (AP-1 complex) in long bones from 5-LO KO mice leading to an increased bone formation pattern in 5-LO-deficient mice. We observed enormous differences in the morphology and function of osteoclasts with reduced bone resorption markers and impaired osteoclasts in 5-LO KO compared to WT osteoclasts. Altogether, these results demonstrate that the absence of 5-LO is related to the greater osteogenic profile. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Flávia Amadeu de Oliveira
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- Human Genetics Program, Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, San Diego, CA, USA
| | - Cintia K Tokuhara
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- Human Genetics Program, Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, San Diego, CA, USA
| | - Vimal Veeriah
- Institute for Regenerative Medicine, University of Zürich, Zürich, Switzerland
| | - João Paulo Domezi
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Tania M Cestari
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Adriana A Matos
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Thiago Dionísio
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Marcel R Ferreira
- Institute of Biosciences, São Paulo State University-UNESP, Botucatu, SP, Brazil
| | - Rafael C Ortiz
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Marco A H Duarte
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - José B Ponce
- Department of Medicine, University Center of Adamantina, Adamantina, SP, Brazil
- Department of Medicine, Faculdades de Dracena, Dracena, SP, Brazil
| | - Carlos A Sorgi
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lucia H Faccioli
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Reis CLB, Pingueiro-Okada EM, Luiz KG, Pedroso GL, Matsumoto MAN, de Menezes LM, Küchler EC, Nascimento GC, Stuani MBS. Orthodontic pain: c-Fos expression in rat brain nuclei after rapid maxillary expansion. J World Fed Orthod 2023; 12:3-8. [PMID: 36344400 DOI: 10.1016/j.ejwf.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The aim of this in vivo study was to quantitatively evaluate pain after rapid maxillary expansion (RME) in young rats by analyzing the activation of nociception-related structures, that is, the caudalis, interpolaris, and oralis subnuclei, according to the Fos expression. METHODS A total of 65 Wistar rats were assigned to three groups: control group (n = 15) with no treatment, positive control group (n = 25), and experimental group (n = 25) with RME. The experimental animals were euthanized at 6, 12, 24, 48, and 72 hours after RME, and the brain was later carefully collected. Coronal sections through the spinal trigeminal caudalis, spinal trigeminal interpolaris, and spinal trigeminal oralis were cut (thickness of 40 µm) on a cryostat and processed for Fos immunohistochemistry. Images from the sections were captured under light microscopy, and ImageJ software was used to count Fos-like immunoreactive neurons. The Analysis of variance (ANOVA) and Tukey test were used for statistical analysis, and the significance level was set at 5%. RESULTS RME induced incisor distalization and opening of the midpalatal suture, as well as neuronal activation of the spinal trigeminal nucleus. The experimental group demonstrated significantly more Fos-positive neurons in subnuclei caudalis and subnuclei interpolaris 6 hours after the maxillary expansion. The Fos immunoreactivity significantly decreased at 12 hours and increased again at 24 and 48 hours (P < 0.001). CONCLUSIONS The RME increases the neural activation of brain regions involved in the nociception region, as determined by the Fos expression. The most intense Fos-like immunoreactive expression was detected in the brain 6 hours after the start of the palatal expansion.
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Affiliation(s)
- Caio Luiz Bitencourt Reis
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Elaine Machado Pingueiro-Okada
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Kelly Galisteu Luiz
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Gabriela Leite Pedroso
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Mirian Aiko Nakame Matsumoto
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Luciane Macedo de Menezes
- Pontifical Catholic University of Rio Grande do Sul, PUCRS. Dental Program - School of Health and Life Sciences, Rio Grande do Sul, Brazil
| | - Erika Calvano Küchler
- Department of Orthodontics, University Medical Centre of Regensburg, Regensburg, Germany
| | - Glauce Crivelaro Nascimento
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil
| | - Maria Bernadete Sasso Stuani
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP) - Ribeirão Preto, São Paulo, Brazil.
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Farzan A, Khaleghi K, Pirayesh Z. Effect of Low-Level Laser Therapy on Bone Formation in Rapid Palatal Expansion: A Systematic Review. J Lasers Med Sci 2022; 13:e13. [PMID: 35996494 PMCID: PMC9392875 DOI: 10.34172/jlms.2022.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 01/02/2022] [Indexed: 11/09/2023]
Abstract
Introduction: Crossbite is a common malocclusion with a 7-23% prevalence rate. Treatment is based on the expansion of the mid-palatal suture (MPS) with Rapid Palatal Expansion(RPE) followed by a retention period to reach new bone maturation, enough to maintain the results stable. This systematic review was conducted to evaluate the effectiveness of low-level laser therapy (LLLT) in increasing bone formation in MPS. Methods: This article was written by the PRISMA checklist. Electronically, 3 databases, namely PubMed, Scopus, and Embase, were searched with the keywords selected based on PICO. Time (2010-2021) and language restrictions were performed. Results: 528 articles, out of which 374 studies were screened, were found, and 9 full-text articles were subsequently included considering these inclusion criteria: randomized clinical trial (RCT) that examines the efficacy of LLLT in rapid palatal expansion (RPE), age under 15 years, non-surgical RPE with a tooth-supported appliance, and low-intensity laser application. Finally, 4 articles were appraised by Cochrane version 5.2.0 with 7 domains. 3 of 4 articles showed LLLT has a significant impact on bone formation. One of them showed no significant difference in pain perception and bone density between the laser and non-laser groups. Conclusion: While many studies have assessed the effect of LLLT on bone formation in animal models, high-quality clinical trials are missing in this regard. The available clinical trials suggest a positive effect of LLLT on sutural bone formation after RPE.
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Affiliation(s)
- Arash Farzan
- Department of Orthodontics and Dentofacial Orthopedics, School of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Katayoon Khaleghi
- School of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Zeynab Pirayesh
- Dental Student, Research Committee, Zanjan University of Medical Sciences, Zanjan, Iran
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De Marco AC, Torquato LC, Gonçalves PR, Ribeiro TC, Nunes CM, Bernardo DV, Gomes MF, Jardini MAN, Santamaria MP. The Effect of Photobiomodulation Therapy in Different Doses on Bone Repair of Critical Size Defects in Rats: A Histomorphometric Study. J Lasers Med Sci 2022; 12:e53. [PMID: 35155138 DOI: 10.34172/jlms.2021.53] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 04/25/2021] [Indexed: 12/19/2022]
Abstract
Introduction: Photobiomodulation therapy (PBM) appears to induce osteogenesis and stimulate fracture repair; because of its capacity, it is considered a promising treatment, but the characteristics of response to different radiation doses must be investigated through in vivo studies to establish their safety and effectiveness. Thus, this paper aims to analyze the effects of the PBM at different doses on the repair of critical bone defects through histological and histomorphometric analyses. Methods: Sixty 90-day-old adult rats (Rattus norvegicus, albinus, Wistar) weighing approximately 300 g were used. Critical bone defects of 5 mm in diameter were performed in their calvaria. The animals were randomly separated into 5 groups: C-Blood clot, L15-PBM 15J/cm2, L30-PBM 30 J/ cm2, L45-PBM 45 J/cm2, L60-PBM 60 J/cm2. Each group was subdivided according to observation periods of 30 and 60 days with 6 rats in each subgroup. Low-level gallium aluminum arsenide (GaAlAs) lasers were used at a 660 nm wavelength, 30 mW and 0.04 cm2 in area. The PBM was applied over 5 points; 4 points of application were distributed on the edges while one point of application was located in the center of the bone defect. PBM occurred right after the procedure. In 30 and 60 days, the animals were euthanized by anesthesia overdose and the analyses were performed. The data were analyzed statistically by the ANOVA, together with the Tukey test, whose significance level was 5%. Results: As regards the treatment factor, the highest percentage of bone neoformation was achieved by group L45-60. The group with the highest closure, despite not having a statistically significant difference with the other doses, was 45 J with only 0.49 mm between edges. Conclusion: Thus, the present study allowed concluding that the highest percentage of bone neoformation area was achieved at 45 J/cm2 in 60 days; that is, it was significantly effective in comparison with other doses.
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Affiliation(s)
- Andrea Carvalho De Marco
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, Campus São José dos Campos, Sao Paulo, Brazil
| | - Letícia Cavassini Torquato
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, Campus São José dos Campos, Sao Paulo, Brazil
| | | | | | - Camilla Moretto Nunes
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, Campus São José dos Campos, Sao Paulo, Brazil
| | | | - Mônica Fernandes Gomes
- Department of Biosciences and Oral Diagnosis, São Paulo State University (UNESP), Institute of Science and Technology, Campus São José dos Campos, Sao Paulo, Brazil
| | - Maria Aparecida Neves Jardini
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, Campus São José dos Campos, Sao Paulo, Brazil
| | - Mauro Pedrine Santamaria
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, Campus São José dos Campos, Sao Paulo, Brazil
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Lai PS, Fierro C, Bravo L, Perez-Flores A. Benefits of Using Low-level Laser Therapy in the Rapid Maxillary Expansion: A Systematic Review. Int J Clin Pediatr Dent 2022; 14:S101-S106. [PMID: 35082475 PMCID: PMC8754280 DOI: 10.5005/jp-journals-10005-1966] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aim and objective Determine the benefits of low-level laser therapy (LLLT) as a complement to rapid maxillary expansion (RME), through a systematic review. Background Transversal maxillary compression is a common skeletal problem that can be treated with different devices. This RME technique consists of the separation and regeneration of the midpalatal suture. Low-level laser therapy has been suggested to be able to accelerate bone healing after trauma or bone defects. Review results Thirty-two publications were found by electronic search during July to August of 2019 on Medline (PubMed) and Google Scholar, using the terms “Low-Level Laser”, “LLLT”, “Rapid Maxillary Expansion”, and “Osteogenesis Distraction”. Only 16 were used (2 systematic reviews, 6 articles on humans, and 8 on animals). Even though all the studies had different intervention protocols, they all revealed that LLLT has the effect of accelerating bone regeneration after RME. Conclusion The use of LLLT as a complement to RME has shown promising results with cellular biostimulation, promoting angiogenesis and bone regeneration of the midpalatal suture. Clinical significance This study provides scientific evidence of the benefits of using LLLT as a complement to RME during orthopedic and orthodontic treatments, accelerating bone regeneration and reducing the time of consolidation of the maxillary. How to cite this article Lai P-S, Fierro C, Bravo L, et al. Benefits of Using Low-level Laser Therapy in the Rapid Maxillary Expansion: A Systematic Review. Int J Clin Pediatr Dent 2021;14(S-1):S101–S106.
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Affiliation(s)
- Pi-Shan Lai
- Department of Pediatric Dentistry, Universidad de Concepcion, Concepcion, Bio Bio, Chile
| | - Claudia Fierro
- Department of Pediatric Dentistry, Universidad de Concepcion, Concepcion, Bio Bio, Chile
| | - Lorena Bravo
- Department of Pediatric Dentistry, Universidad de Concepcion, Concepcion, Bio Bio, Chile
| | - Antonieta Perez-Flores
- Department of Pediatric Dentistry, Universidad de Concepcion, Concepcion, Bio Bio, Chile
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Agas D, Hanna R, Benedicenti S, De Angelis N, Sabbieti MG, Amaroli A. Photobiomodulation by Near-Infrared 980-nm Wavelengths Regulates Pre-Osteoblast Proliferation and Viability through the PI3K/Akt/Bcl-2 Pathway. Int J Mol Sci 2021; 22:ijms22147586. [PMID: 34299204 PMCID: PMC8304212 DOI: 10.3390/ijms22147586] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/28/2021] [Accepted: 07/09/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND bone tissue regeneration remains a current challenge. A growing body of evidence shows that mitochondrial dysfunction impairs osteogenesis and that this organelle may be the target for new therapeutic options. Current literature illustrates that red and near-infrared light can affect the key cellular pathways of all life forms through interactions with photoacceptors within the cells' mitochondria. The current study aims to provide an understanding of the mechanisms by which photobiomodulation (PBM) by 900-nm wavelengths can induce in vitro molecular changes in pre-osteoblasts. METHODS The PubMed, Scopus, Cochrane, and Scholar databases were used. The manuscripts included in the narrative review were selected according to inclusion and exclusion criteria. The new experimental set-up was based on irradiation with a 980-nm laser and a hand-piece with a standard Gaussian and flat-top beam profile. MC3T3-E1 pre-osteoblasts were irradiated at 0.75, 0.45, and 0.20 W in continuous-wave emission mode for 60 s (spot-size 1 cm2) and allowed to generate a power density of 0.75, 0.45, and 0.20 W/cm2 and a fluence of 45, 27, and 12 J/cm2, respectively. The frequency of irradiation was once, three times (alternate days), or five times (every day) per week for two consecutive weeks. Differentiation, proliferation, and cell viability and their markers were investigated by immunoblotting, immunolabelling, fluorescein-FragELTM-DNA, Hoechst staining, and metabolic activity assays. RESULTS AND CONCLUSIONS The 980-nm wavelength can photobiomodulate the pre-osteoblasts, regulating their metabolic schedule. The cellular signal activated by 45 J/cm2, 0.75 W and 0.75 W/cm2 consist of the PI3K/Akt/Bcl-2 pathway; differentiation markers were not affected, nor do other parameters seem to stimulate the cells. Our previous and present data consistently support the window effect of 980 nm, which has also been described in extracted mitochondria, through activation of signalling PI3K/Akt/Bcl-2 and cyclin family, while the Wnt and Smads 2/3-β-catenin pathway was induced by 55 J/cm2, 0.9 W and 0.9 W/cm2.
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Affiliation(s)
- Dimitrios Agas
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, 62032 Macerata, Italy; (D.A.); (M.G.S.)
| | - Reem Hanna
- Department of Oral Surgery, Dental Institute, King’s College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK;
- Department of Surgical and Diagnostic Sciences, University of Genoa, 16132 Genoa, Italy; (S.B.); (N.D.A.)
| | - Stefano Benedicenti
- Department of Surgical and Diagnostic Sciences, University of Genoa, 16132 Genoa, Italy; (S.B.); (N.D.A.)
| | - Nicola De Angelis
- Department of Surgical and Diagnostic Sciences, University of Genoa, 16132 Genoa, Italy; (S.B.); (N.D.A.)
| | - Maria Giovanna Sabbieti
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, 62032 Macerata, Italy; (D.A.); (M.G.S.)
| | - Andrea Amaroli
- Department of Surgical and Diagnostic Sciences, University of Genoa, 16132 Genoa, Italy; (S.B.); (N.D.A.)
- Department of Orthopaedic Dentistry, First Moscow State Medical University (Sechenov University), 11991 Moscow, Russia
- Correspondence:
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Three-dimensional imaging and molecular analysis of the effects of photobiomodulation and mechanical vibration on orthodontic retention treatment in rats : Effects of photobiomodulation and mechanical vibration on orthodontic retention treatment. J Orofac Orthop 2021; 83:24-41. [PMID: 34009424 DOI: 10.1007/s00056-021-00296-0] [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: 10/26/2020] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE We aimed to evaluate and compare effects of photobiomodulation (PBM) and low-magnitude high-frequency mechanical vibration (HFMV) on orthodontic retention. METHODS Sixty-four female Wistar albino rats were divided into 9 groups (2 negative and positive controls each, 3 PBM and 2 HFMV groups) and studied for 25 days. In the experimental groups, closed nickel-titanium closed coil springs with a 50 cN force were placed for 10 days between the maxillary incisor and molar. PBM and HFMV were applied daily over long- (15 days) and short-term (7 days) retention periods. The PBM groups received PBM with a single wavelength (650 nm) or higher wavelengths (532, 650, 940 nm) for 9 min per day. HFMV groups received HFMV of 10, 20, and 30 Hz for 10 min per day. Right and left maxilla were assessed using micro-computed tomography imaging and real-time polymerase chain reaction. The amount of tooth movement during the retention period, expression levels of cyclooxygenase‑2 (COX-2), osteoprotegerin (OPG), and receptor activator of nuclear factor-kappa B ligand (RANKL) mRNA gene expression levels, OPG/RANKL ratios, alveolar bone trabecular thickness (Tb.Th), trabecular number (Tb.N), and structure model index were analyzed. Kruskal-Wallis and Mann-Whitney U tests were used for multiple comparisons of the nonparametric distributed data and binary comparisons, respectively. RESULTS When using the long-term retention protocol, PBM and HFMV treatment increased Tb.N (p < 0.05) and decreased COX‑2 mRNA gene expression levels (p < 0.05) and Tb.Th (p < 0.05) compared to controls. For short-term retention, PBM and HFMV decreased the amount of relapse tooth movement compared to controls. In addition, Tb.Th (p < 0.05) and the mRNA gene expression levels of COX‑2 and RANKL (p < 0.05) were decreased. CONCLUSION PBM and HFMV might be able to support retention after orthodontic tooth movement by reducing bone resorption and increasing bone quality.
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Low-level laser therapy (LLLT) improves alveolar bone healing in rats. Lasers Med Sci 2021; 37:961-969. [PMID: 34002343 DOI: 10.1007/s10103-021-03340-y] [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: 10/30/2020] [Accepted: 05/09/2021] [Indexed: 10/21/2022]
Abstract
The main objective of the present study was to evaluate the effect of low-level laser therapy (LLLT) in enhancing bone healing in irradiated alveolus post-tooth extraction. Sixty male Wistar rats (180 ± 10 g) were used in the present study. The left maxillary first molars were extracted, and the alveolar region was irradiated by diode laser device (GaAlAs) immediately after extraction and for more 3-day daily applications. The animals were randomly assigned into two groups: control group (n = 30, with left maxillary molar extraction-CG) and experimental group (n = 30, with tooth extraction and low-level laser therapy applied to the dental alveolus for 42 s-EG). These groups were divided into subgroups (five rats per subgroup) according to the observation time point-1, 2, 3, 5, 7, and 10 days-post-tooth extraction. The maxillary bone was separated, and the specimens were stained with hematoxylin and eosin, Masson's trichrome, and picrosirius red and immunohistochemistry for RUNX-2. Parametric and nonparametric tests were used with a significance level of 5%. LLLT accelerated bone healing with mature collagen fiber bundles and early new bone formation. Histomorphometric analysis revealed an increase of osteoblast (RUNX-2) and osteoclast (TRAP) activity and in the area percentage of cancellous bone in the lased alveolus compared to the control group. This increase was statistically significant (p < 0.05). Application of LLLT with a GaAlAs diode laser device enhanced bone healing and mineralization on alveolar region.
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Interaction between Laser Light and Osteoblasts: Photobiomodulation as a Trend in the Management of Socket Bone Preservation-A Review. BIOLOGY 2020; 9:biology9110409. [PMID: 33238412 PMCID: PMC7700402 DOI: 10.3390/biology9110409] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022]
Abstract
Simple Summary Dental implants are becoming an accepted tool, and thousands of implants are placed every year by specialists and general practitioners. However, more than 10% of bone surgeries and related procedures can show healing complications as a consequence of infections, tissue damage, or inadequate blood supply. In particular, a deficient blood supply impacts on the optimal healing process because of altered oxygen delivery to cells in the wound and a decrease in their energy supply. Researchers showed how red and infrared light affects key cellular pathways by interacting with specific photoacceptors located within the cell, particularly in mitochondria. Low-level laser therapy or photobiomodulation (PBM), as the recent medical subject heading defines it, is based on a light–cell interaction, which modifies cell metabolism by increasing oxygen consumption and ATP production through mitochondria. Although not all aspects of this interconnection are completely described, many in vitro and in vivo studies showed the benefit of PBM in wound defect management. For instance, treatment of bone with PBM results in a greater amount of new-formed osteoblasts and matrix, an increase in collagen synthesis, and microvascular reestablishment. In our review, we highlight the osteoblast–light interaction, and the in vivo therapeutic tool of PBM for socket preservation is discussed. Abstract Bone defects are the main reason for aesthetic and functional disability, which negatively affect patient’s quality of life. Particularly, after tooth extraction, the bone of the alveolar process resorbs, limiting the optimal prosthetic implant placement. One of the major pathophysiological events in slowly- or non-healing tissues is a blood supply deficiency, followed by a significant decrease in cellular energy amount. The literature shows that photons at the red and infrared wavelengths can interact with specific photoacceptors located within the cell. Through this mechanism, photobiomodulation (PBM) can modify cellular metabolism, by increasing mitochondrial ATP production. Here, we present a review of the literature on the effect of PBM on bone healing, for the management of socket preservation. A search strategy was developed in line with the PRISMA statement. The PubMed and Scholar electronic databases were consulted to search for in vivo studies, with restrictions on the year (<50 years-old), language (English), bone socket preservation, and PBM. Following the search strategy, we identified 269 records, which became 14, after duplicates were removed and titles, abstract and inclusion-, exclusion-criteria were screened. Additional articles identified were 3. Therefore, 17 articles were included in the synthesis. We highlight the osteoblast–light interaction, and the in vivo therapeutic tool of PBM is discussed.
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Matos DS, Palma-Dibb RG, de Oliveira Santos C, da Conceição Pereira Saraiva M, Marques FV, Matsumoto MAN, Romano FL. Evaluation of photobiomodulation therapy to accelerate bone formation in the mid palatal suture after rapid palatal expansion: a randomized clinical trial. Lasers Med Sci 2020; 36:1039-1046. [PMID: 32901379 DOI: 10.1007/s10103-020-03141-9] [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: 06/11/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
To evaluate the efficiency of photobiomodulation therapy (PBMT) in the midpalatal suture (MPS) and pain sensation in patients undergoing rapid palatal expansion (RPE). Thirty-four individuals with the diagnosis of skeletal maxillary hypoplasia were divided in two groups: laser (n = 18) and control (n = 16). Treatment plan consisted of the use of the Hyrax expander in all patients. Subjects in the laser group were irradiated with diode laser (980 nm, 0.3 W) in six spots bilaterally distributed along the MPS for 10 s during the active phase of treatment and after overcorrection (passive phase of RPE). Control group received sham irradiations with the laser in standby mode to characterize the placebo effect. Digital occlusal radiographs were performed at different time-points for bone formation evaluation in both groups. The effects of laser irradiation on pain were assessed by the visual analog scale (Wong-Baker Faces Pain Scale). Bone formation between groups was not significantly different (p = 0.2273). At 3 months, bone formation was not yet complete in both groups. Pain sensation was similar between groups (p = 0.3940). However, pain was significantly higher for the first 7 days of treatment compared with the 14th day. PBMT did not accelerate bone regeneration in the MPS and pain sensation was similar.
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Affiliation(s)
- Denise Souza Matos
- School of Dentistry, University Center of Patos de Minas, Patos de Minas, MG, Brazil
| | - Regina Guenka Palma-Dibb
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Christiano de Oliveira Santos
- Department of Stomatology, Public Health and Forensic Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Maria da Conceição Pereira Saraiva
- Department of Paediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café, s/n. Monte Alegre, Ribeirao Preto, SP, Brazil
| | - Fernanda Vicioni Marques
- Department of Paediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café, s/n. Monte Alegre, Ribeirao Preto, SP, Brazil
| | - Mírian Aiko Nakane Matsumoto
- Department of Paediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café, s/n. Monte Alegre, Ribeirao Preto, SP, Brazil
| | - Fábio Lourenço Romano
- Department of Paediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café, s/n. Monte Alegre, Ribeirao Preto, SP, Brazil.
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12
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Santinoni CS, Neves APC, Almeida BFM, Kajimoto NC, Pola NM, Caliente EA, Belem ELG, Lelis JB, Fucini SE, Messora MR, Garcia VG, Bomfim SRM, Ervolino E, Nagata MJH. Bone marrow coagulated and low-level laser therapy accelerate bone healing by enhancing angiogenesis, cell proliferation, osteoblast differentiation, and mineralization. J Biomed Mater Res A 2020; 109:849-858. [PMID: 32815657 DOI: 10.1002/jbm.a.37076] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/17/2020] [Accepted: 07/26/2020] [Indexed: 12/14/2022]
Abstract
The present study evaluated bone marrow aspirate (BMA) and low-level laser therapy (LLLT) on bone healing. It was created critical-size defects (CSD) of 5 mm diameter in rat calvaria of 64 rats. Animals were randomly divided into four groups: Control (blood clot), BMA (coagulated BMA), LLLT (laser irradiation and blood clot), and BMA/LLLT (laser irradiation and coagulated BMA). Euthanasia was performed at 15 or 30 days postoperative. Immunohistochemical reactions were performed to identify vascular endothelial growth factor (VEGF), proliferating cell nuclear antigen (PCNA), runt-related transcription factor-2 (Runx2), bone morphogenetic protein-2 (BMP-2), osteocalcin (OCN), and osteopontin (OPN). The markers were quantified, and data were statistically analyzed. Groups BMA/LLLT and LLLT presented significantly higher VEGF expression than group control. Group BMA/LLLT presented a significantly higher expression of PCNA than all experimental groups. Groups BMA and BMA/LLLT presented significantly higher expression of BMP-2 than all experimental groups. Groups LLLT and BMA/LLLT presented significantly higher expression of OPN than groups control and BMA. Groups LLLT, BMA, and BMA/LLLT presented a significantly higher expression of OCN than group control. It can be concluded that the association of BMA and LLLT enhanced bone healing by improving expression of VEGF, PCNA, Runx2, BMP-2, OPN, and OCN.
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Affiliation(s)
- Carolina S Santinoni
- Dental School of Presidente Prudente, Graduate Program in Dentistry (GPD-Master's Degree), UNOESTE-University of Western Sao Paulo, Presidente Prudente, Brazil.,Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Adrieli P C Neves
- Dental School of Presidente Prudente, Graduate Program in Dentistry (GPD-Master's Degree), UNOESTE-University of Western Sao Paulo, Presidente Prudente, Brazil.,Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Breno F M Almeida
- Division of Clinical, Surgery and Animal Reproduction, Veterinary School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Natália C Kajimoto
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Natália M Pola
- Division of Periodontics, Dental School of Pelotas, Federal University of Pelotas-UFPel, Pelotas, Brazil
| | - Eliana A Caliente
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Eduarda L G Belem
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Joilson B Lelis
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Stephen E Fucini
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil.,Periodontics, Private Practice, Hanover, New Hampshire, USA
| | - Michel R Messora
- Division of Periodontics, School of Dentistry of Ribeirão Preto, University of São Paulo-USP, São Paulo, Brazil
| | - Valdir G Garcia
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Suely R M Bomfim
- Division of Clinical, Surgery and Animal Reproduction, Veterinary School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Edilson Ervolino
- Division of Histology, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
| | - Maria J H Nagata
- Division of Periodontics, Dental School of Araçatuba, Univ. Estadual Paulista-UNESP, Araçatuba, Brazil
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Cardoso MV, do Vale Placa R, Sant'Ana ACP, Greghi SLA, Zangrando MSR, de Rezende MLR, Oliveira RC, Damante CA. Laser and LED photobiomodulation effects in osteogenic or regular medium on rat calvaria osteoblasts obtained by newly forming bone technique. Lasers Med Sci 2020; 36:541-553. [PMID: 32514865 DOI: 10.1007/s10103-020-03056-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 06/01/2020] [Indexed: 12/16/2022]
Abstract
The purposes of this study are to evaluate the effects of photobiomodulation (PBM) with laser and LED on rat calvaria osteoblasts (rGO lineage), cultured in osteogenic (OST) or regular (REG) medium, after induction of a quiescent state and to test if PBM is capable of osteogenic induction and if there is a sum of effects when combining OST medium with PBM. Before irradiation, the cells were put in a quiescent state (1% FBS) 24 h, when red (AlGaInP-660 nm) and infrared laser (GaAlAs-808 nm) and LED (637 ± 15 nm) were applied. The groups were as follows: red laser (RL3-5 J/cm2, 3 s and RL5-8.3 J/cm2, 5 s, 1.66 W/cm2); infrared laser (IrL3-5 J/cm2, 3 s and IrL5-8.3 J/cm2, 5 s); LED (LED3-3 s and LED5-5 s, 0.02 J/cm2, 0.885 W/cm2); positive (C+, 10% FBS) and negative control (C-, 1% FBS). For alkaline phosphatase (ALP) and mineralization assays, the cells were cultured in REG (DMEM 10% FBS) and OST medium (DMEM 10% FBS, 50 μg/mL ascorbic acid, 10 mM β-glycerophosphate). Statistical analysis was performed using ANOVA and Tukey's tests (p < 0.05). RL5 and LED5 increased proliferation, in vitro wound closure, ALP, and mineralization in rGO cells (p < 0.05). PBM with red laser and LED induced mineralization by itself, without osteogenic medium, not observed for infrared laser (p < 0.05). A sum of effects was observed in osteogenic medium and PBM by infrared, red laser, and LED (5 s). Red laser and LED increased proliferation, migration, and secretory phases in rGO cells in a dose-dependent manner. PBM with red laser and LED promotes osteogenic induction by itself. PBM with infrared laser and osteogenic medium potentializes mineralization.
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Affiliation(s)
- Matheus Völz Cardoso
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
| | - Rebeca do Vale Placa
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | | | - Sebastião Luiz Aguiar Greghi
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | | | - Maria Lucia Rubo de Rezende
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Rodrigo Cardoso Oliveira
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Carla Andreotti Damante
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
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Ribeiro LNS, Monteiro PM, Barretto GD, Luiz KG, Alves SYF, Stuani MBS. The Effect of Cigarette Smoking And Low-Level Laser Irradiation in RANK/RANKL/OPG Expression. Braz Dent J 2020; 31:57-62. [PMID: 32159707 DOI: 10.1590/0103-6440202002519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/25/2019] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to investigate the effects of low-level laser therapy (LLLT) and cigarette smoke on alveolar socket osteoclastogenesis signaling after tooth extraction, in rats. Sixty male Wistar rats were randomly assigned to four groups with 15 animals each: Control Group (with right maxillary molar extraction - ME), Experimental I (with ME and LLLT), Experimental II (with ME and cigarette smoke) and Experimental III group (with ME, LLLT and cigarette smoke). Euthanasia was performed at 3, 7 and 14 days postoperative. qRT-PCR was used to evaluate expression of Tnfrsf11a (RANK), Tnfsf11 (Rankl) and Tnfrsf11b (OPG). Data were submitted to statistical analysis using two-way ANOVA followed by Bonferroni test (α=0.05). There was an upregulation of RANK, RANKL and OPG genes over all the time of healing in Exp I group compared to control group. Exp II group showed a decreased expression of all genes over time, whereas Exp III genes expression were higher than Exp II values but lower than Control and Exp I values over time. The results of this study concluded that the LLLT had a positive effect, whereas cigarette smoke had a negative effect on RANK, RANKL and OPG gene expression in bone remodeling process.
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Affiliation(s)
- Larissa Nogueira Soares Ribeiro
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Patrícia Maria Monteiro
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Gabriel Dessotti Barretto
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Kelly Galisteu Luiz
- Department of Orthodontics, School of Dentistry of Rio de Janeiro, UFRJ - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Sandra Yasuyo Fukada Alves
- Departament of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Maria Bernadete Sasso Stuani
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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Marañón-Vásquez GA, Lagravère MO, Borsatto MC, de Souza SS, Watanabe PCA, Matsumoto MAN, Saraiva MDCP, Romano FL. Effect of photobiomodulation on the stability and displacement of orthodontic mini-implants submitted to immediate and delayed loading: a clinical study. Lasers Med Sci 2019; 34:1705-1715. [PMID: 31154599 DOI: 10.1007/s10103-019-02818-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 05/24/2019] [Indexed: 12/16/2022]
Abstract
The aim of this study was to evaluate the effect of photobiomodulation (PBM) on the stability and displacement of orthodontic mini-implants (MIs) submitted to loading. Forty-eight and 35 mini-implants (1.5 × 8 × 1 mm) were assessed for stability and displacement, respectively (19 patients). MIs were allocated according to the intervention in 1-PBM + immediate loading (IL), 2-PBM + delayed loading (DL) (four weeks after implantation), 3-IL only, and 4-DL only. PBM (Therapy XT, DCM) was implemented using a red emission (660 nm, 4 J/cm2, 0.1 W, 20 s) immediately after implantation (day 0) and infrared emissions (808 nm; 8 J/cm2, 0.1 W, 40 s) in the following appointments every 48-72 h during two weeks (days 2, 4, 7, 9, 11, and 14). Loading of 150 gF was applied during three months for all MIs. The stability was assessed by resonance frequency analysis (Osstell ISQ), and images from Cone beam computed tomography were evaluated to determine the amount of the displacement of the MI's head. MIs from the PBM groups presented lower loss of stability (P = 0.0372). When the analysis considered the loading protocol as an additional variable, group two showed the lowest loss of stability, being significantly different from groups that did not receive PBM (P = 0.0161). There was no difference between groups two and four during the period without loading (P > 0.05). DL groups presented lower loss when the effective period of loading was assessed, independently of the application of PBM (P < 0.0001). All groups showed displacement of the MIs head without significant differences (P > 0.05). DL potentiated the effect of PBM, decreasing the loss of stability.
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Affiliation(s)
- Guido A Marañón-Vásquez
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Manuel O Lagravère
- Department of Dentistry, Division of Orthodontics, Faculty of Medicine & Dentistry, University of Alberta, 11405 - 87 Avenue NW, Edmonton, AB, T6G 1C9, Canada
| | - Maria C Borsatto
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Sérgio S de Souza
- Department of Oral & Maxillofacial Surgery, and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Plauto C A Watanabe
- Department of Stomatology, Public Health and Forensic Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Mírian A N Matsumoto
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Maria da Conceição P Saraiva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil
| | - Fábio L Romano
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. Do Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil.
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Arnez MFM, Ribeiro LSN, Barretto GD, Monteiro PM, Ervolino E, Stuani MBS. RANK/RANKL/OPG Expression in Rapid Maxillary Expansion. Braz Dent J 2018; 28:296-300. [PMID: 29297549 DOI: 10.1590/0103-6440201601116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 03/14/2017] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to evaluate osteoclastogenesis signaling in midpalatal suture after rapid maxillary expansion (RME) in rats. Thirty male Wistar rats were randomly assigned to two groups with 15 animals each: control (C) and RME group. RME was performed by inserting a 1.5-mm-thick circular metal ring between the maxillary incisors. The animals were euthanized at 3, 7 and 10 days after RME. qRT-PCR was used to evaluate expression of Tnfsf11 (RANKL), Tnfrsf11a (RANK) and Tnfrsf11b (OPG). Data were submitted to statistical analysis using two-way ANOVA followed by Tukey test (a=0.05). There was an upregulation of RANK and RANKL genes at 7 and 10 days and an upregulation of the OPG gene at 3 and 7 days of healing. Interestingly, an increased in expression of all genes was observed over time in both RME and C groups. The RANKL/OPG ratio showed an increased signaling favoring bone resorption on RME compared to C at 3 and 7 days. Signaling against bone resorption was observed, as well as an upregulation of OPG gene expression in RME group, compared to C group at 10 days. The results of this study concluded that the RANK, RANK-L and OPG system participates in bone remodeling after RME.
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Affiliation(s)
- Maya Fernanda Manfrin Arnez
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto,SP, Brazil
| | - Larissa Soares Nogueira Ribeiro
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto,SP, Brazil
| | - Gabriel Dessotti Barretto
- Department of Histology, School of Pharmacy of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto,SP, Brazil
| | - Patrícia Maria Monteiro
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto,SP, Brazil
| | - Edilson Ervolino
- Department of Histology, UNESP - Universidade Estadual Paulista, Araçatuba, SP, Brazil
| | - Maria Bernadete Sasso Stuani
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto,SP, Brazil
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Davoudi A, Amrolahi M, Khaki H. Effects of laser therapy on patients who underwent rapid maxillary expansion; a systematic review. Lasers Med Sci 2018; 33:1387-1395. [DOI: 10.1007/s10103-018-2545-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 05/18/2018] [Indexed: 12/30/2022]
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18
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The impact of photobiomodulation on osteoblast-like cell: a review. Lasers Med Sci 2018; 33:1147-1158. [DOI: 10.1007/s10103-018-2486-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 03/13/2018] [Indexed: 12/22/2022]
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Skondra FG, Koletsi D, Eliades T, Farmakis ETR. The Effect of Low-Level Laser Therapy on Bone Healing After Rapid Maxillary Expansion: A Systematic Review. Photomed Laser Surg 2018; 36:61-71. [DOI: 10.1089/pho.2017.4278] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Despina Koletsi
- Clinic of Orthodontics and Paediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Theodore Eliades
- Clinic of Orthodontics and Paediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Mikami R, Mizutani K, Aoki A, Tamura Y, Aoki K, Izumi Y. Low-level ultrahigh-frequency and ultrashort-pulse blue laser irradiation enhances osteoblast extracellular calcification by upregulating proliferation and differentiation via transient receptor potential vanilloid 1. Lasers Surg Med 2017; 50:340-352. [PMID: 29214666 DOI: 10.1002/lsm.22775] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Low-level laser irradiation (LLLI) exerts various biostimulative effects, including promotion of wound healing and bone formation; however, few studies have examined biostimulation using blue lasers. The purpose of this study was to investigate the effects of low-level ultrahigh-frequency (UHF) and ultrashort-pulse (USP) blue laser irradiation on osteoblasts. STUDY DESIGN/ MATERIALS AND METHODS The MC3T3-E1 osteoblast cell line was used in this study. Following LLLI with a 405 nm newly developed UHF-USP blue laser (80 MHz, 100 fs), osteoblast proliferation, and alkaline phosphatase (ALP) activity were assessed. In addition, mRNA levels of the osteoblast differentiation markers, runt-related transcription factor 2 (Runx2), osterix (Osx), alkaline phosphatase (Alp), and osteopontin (Opn) was evaluated, and extracellular calcification was quantified. To clarify the involvement of transient receptor potential (TRP) channels in LLLI-induced biostimulation, cells were treated prior to LLLI with capsazepine (CPZ), a selective inhibitor of TRP vanilloid 1 (TRPV1), and subsequent proliferation and ALP activity were measured. RESULTS LLLI with the 405 nm UHF-USP blue laser significantly enhanced cell proliferation and ALP activity, compared with the non-irradiated control and LLLI using continuous-wave mode, without significant temperature elevation. LLLI promoted osteoblast proliferation in a dose-dependent manner up to 9.4 J/cm2 and significantly accelerated cell proliferation in in vitro wound healing assay. ALP activity was significantly enhanced at doses up to 5.6 J/cm2 , and expression of Osx and Alp mRNAs was significantly increased compared to that of the control on days 3 and 7 following LLLI at 5.6 J/cm2 . The extent of extracellular calcification was also significantly higher as a result of LLLI 3 weeks after the treatment. Measurement of TRPV1 protein expression on 0, 3, and 7 days post-irradiation revealed no differences between the LLLI and control groups; however, promotion of cell proliferation and ALP activity by LLLI was significantly inhibited by CPZ. CONCLUSION LLLI with a 405 nm UHF-USP blue laser enhances extracellular calcification of osteoblasts by upregulating proliferation and differentiation via TRPV1. Lasers Surg. Med. 50:340-352, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Risako Mikami
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Mizutani
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yukihiko Tamura
- Department of Bio-Matrix (Pharmacology), Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuhiro Aoki
- Department of Basic Oral Health Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Cultured Human Fibroblast Biostimulation Using a 940 nm Diode Laser. MATERIALS 2017; 10:ma10070793. [PMID: 28773152 PMCID: PMC5551836 DOI: 10.3390/ma10070793] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 06/23/2017] [Accepted: 07/07/2017] [Indexed: 12/12/2022]
Abstract
Background: Fibroblasts are the main cells involved in regeneration during wound healing. The objective was to determine the effect of 940 nm diode laser on cultured human fibroblasts using different irradiation regimens. Methods: The CCD-1064Sk human epithelial fibroblast cell line was treated with a 940 nm diode laser at different energy doses (power: 0.2–1 W and energy density: 1–7 J/cm2) using different transmission modes (continuous or pulsed). The effect on cell growth at 24 and 72 h post-treatment was examined by measuring the proliferative capacity, the impact on the cell cycle, and the effect on cell differentiation. Results: fibroblast proliferative capacity was increased at 24 and 72 h post-treatment as a function of the energy dose. The greatest increase was observed with a power of 0.2 or 0.5 W and energy density between 1 and 4 J/cm2; no difference was observed between continuous and pulsed modes. There were no significant differences in cell cycle between treated groups and controls. α-actin expression was increased by treatment, indicating enhanced cell differentiation. Conclusion: The 940 nm diode laser has biostimulating effects on fibroblasts, stimulating proliferative capacity and cell differentiation without altering the cell cycle. Further researches are necessary to explore its potential clinical usefulness in wound healing.
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Oliveira FAD, Matos AA, Matsuda SS, Buzalaf MAR, Bagnato VS, Machado MADAM, Damante CA, Oliveira RCD, Peres-Buzalaf C. Low level laser therapy modulates viability, alkaline phosphatase and matrix metalloproteinase-2 activities of osteoblasts. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 169:35-40. [PMID: 28264787 DOI: 10.1016/j.jphotobiol.2017.02.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/26/2017] [Indexed: 11/26/2022]
Abstract
Low level laser therapy (LLLT) has been shown to stimulate bone cell metabolism but their impact on the matrix metalloproteinase (MMP) expression and activity is little explored. This study evaluated the influence of LLLT at two different wavelengths, red and infrared, on MC3T3-E1 preosteoblast viability, alkaline phosphatase (ALP) and MMP-2 and -9 activities. To accomplish this, MC3T3-E1 cells were irradiated with a punctual application of either red (660nm; InGaAIP active medium) or infrared (780nm; GaAlAs active medium) lasers both at a potency of 20mW, energy dose of 0.08 or 0.16J, and energy density of 1.9J/cm2 or 3.8J/cm2, respectively. The control group received no irradiation. Cellular viability, ALP and MMP-2 and -9 activities were assessed by MTT assay, enzymatic activity and zymography, respectively, at 24, 48 and 72h. The treatment of cells with both red and infrared lasers significantly increased the cellular viability compared to the non-irradiated control group at 24 and 48h. The ALP activity was also up modulated in infrared groups at 24 and 72h, depending on the energy densities. In addition, the irradiation with red laser at the energy density of 1.9J/cm2 promoted an enhancement of MMP-2 activity at 48 and 72h. However, no differences were observed for the MMP-9 activity. In conclusion, when used at these specific parameters, LLL modulates both preosteoblast viability and differentiation highlighted by the increased ALP and MMP-2 activities induced by irradiation.
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Affiliation(s)
- Flávia Amadeu de Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Adriana Arruda Matos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Sandra Satiko Matsuda
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Vanderley Salvador Bagnato
- Departamento de Física e Ciência dos Materiais, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | | | - Carla Andreotti Damante
- Department of Prosthodontics/Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Camila Peres-Buzalaf
- Universidade do Sagrado Coração, Pró-Reitoria de Pesquisa e Pós-Graduação, Bauru, SP, Brazil
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Rosa CB, Habib FAL, de Araújo TM, Dos Santos JN, Cangussu MCT, Barbosa AFS, de Castro ICV, Pinheiro ALB. Laser and LED phototherapy on midpalatal suture after rapid maxilla expansion: Raman and histological analysis. Lasers Med Sci 2016; 32:263-274. [PMID: 27885521 DOI: 10.1007/s10103-016-2108-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 11/14/2016] [Indexed: 11/27/2022]
Abstract
The aim of this study was to analyze the effect of laser or LED phototherapy on the acceleration of bone formation at the midpalatal suture after rapid maxilla expansion. Forty-five rats were divided into groups at 7 days (control, expansion, expansion and laser irradiation, and expansion and LED irradiation) and into 14 days (expansion, expansion and laser in the 1st week, expansion and LED in the 1st week, expansion and laser in the 1st and 2nd weeks, expansion and LED in the 1st and 2nd weeks). Laser/LED irradiation occurred every 48 h. Expansion was accomplished with a spatula and maintained with a triple helicoid of 0.020-in stainless steel orthodontic wire. A diode laser (λ780 nm, 70 mW, spot of 0.04 cm2, t = 257 s, SAEF of 18 J/cm2) or a LED (λ850 ± 10 nm, 150 ± 10 mW, spot of 0.5 cm2, t = 120 s, SAEF of 18 J/cm2) was applied in one point in the midpalatal suture immediately behind the upper incisors. Raman spectroscopy and histological analyses of the suture region were carried and data was submitted to statistical analyses (p ≤ 0.05). Raman spectrum analysis demonstrated that irradiation increases hydroxyapatite in the midpalatal suture after expansion. In the histological analysis of various inflammation, there was a higher production of collagen and osteoblastic activity and less osteoclastic activity. The results showed that LED irradiation associated to rapid maxillary expansion improves bone repair and could be an alternative to the use of laser in accelerating bone formation in the midpalatal suture.
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Affiliation(s)
- Cristiane Becher Rosa
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Fernando Antonio Lima Habib
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Telma Martins de Araújo
- Orthodontics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Jean Nunes Dos Santos
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Maria Cristina T Cangussu
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Artur Felipe Santos Barbosa
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Isabele Cardoso Vieira de Castro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Antônio Luiz Barbosa Pinheiro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil.
- National Institute of Optics and Photonics, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, 13560-970, Brazil.
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Tim CR, Bossini PS, Kido HW, Malavazi I, von Zeska Kress MR, Carazzolle MF, Rennó AC, Parizotto NA. Low-level laser therapy induces an upregulation of collagen gene expression during the initial process of bone healing: a microarray analysis. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:88001. [PMID: 27548776 DOI: 10.1117/1.jbo.21.8.088001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
This study investigates the histological modifications produced by low level laser therapy (LLLT) on the first day of bone repair, as well as evaluates the LLLT effects on collagen expression on the site of a fracture. Twenty Wistar rats were distributed into a control group (CG) and a laser group (LG). Laser irradiation of Ga-Al-As laser 830 nm, 30 mW, 94 s, 2.8 J was performed in five sessions. Animals were euthanized on day 5 postsurgery. Histopathological analysis showed that LLLT was able to increase deposition of granulation tissue and newly formed bone at the site of the injury. In addition, picrosirius analysis showed that collagen fiber organization in the LG was enhanced compared to CG. Microarray analysis demonstrated that LLLT produced an upregulation type I collagen (COL-I). Immunohistochemical analysis revealed that the subjects that were treated presented a higher immunoexpression of COL-I. Our findings indicated that LLLT improves bone healing by producing a significant increase in the expression of collagen genes.
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Affiliation(s)
- Carla Roberta Tim
- Federal University of São Paulo, Department of Bioscience, Avenue Ana Costa 95, Santos 11050-240, Brazil
| | - Paulo Sérgio Bossini
- Federal University of São Paulo, Department of Bioscience, Avenue Ana Costa 95, Santos 11050-240, Brazil
| | - Hueliton Wilian Kido
- Federal University of São Paulo, Department of Bioscience, Avenue Ana Costa 95, Santos 11050-240, Brazil
| | - Iran Malavazi
- Federal University of São Carlos, Department of Genetics and Evolution, Rod Washington Luis Km 235, São Carlos 13565-905, Brazil
| | - Marcia Regina von Zeska Kress
- University of São Paulo, School of Pharmaceutical Sciences of Ribeirão Preto, Department of Clinical Analysis, Toxicological and Bromatological, Avenue do Café 95, Ribeirão Preto, Brazil 14049-900, Brazil
| | - Marcelo Falsarella Carazzolle
- State University of Campinas, Department of Genetics and Evolution, Cidade Universitária Zeferino Vaz, Campinas 13083-970, BrazileBrazilian National Center for Research in Energy and Materials, Brazilian Biosciences National Laboratory, Giuseppe Máximo Scolfaro 10.000, Campinas 13083-970, Brazil
| | - Ana Cláudia Rennó
- Federal University of São Paulo, Department of Bioscience, Avenue Ana Costa 95, Santos 11050-240, Brazil
| | - Nivaldo Antonio Parizotto
- Federal University of São Carlos, Department of Physiotherapy, Rod Washington Luis Km 235, São Carlos 13565-905, Brazil
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Effects of low-level laser therapy on bone regeneration of the midpalatal suture after rapid maxillary expansion. Lasers Med Sci 2016; 31:907-13. [DOI: 10.1007/s10103-016-1933-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 03/28/2016] [Indexed: 10/22/2022]
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Bhardwaj S, George JP, Remigus D, Khanna D. Low Level Laser Therapy in the Treatment of Intra-Osseous Defect- A Case Report. J Clin Diagn Res 2016; 10:ZD06-8. [PMID: 27135012 DOI: 10.7860/jcdr/2016/15805.7466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/08/2015] [Indexed: 11/24/2022]
Abstract
Low level laser has been documented in literature to promote wound healing by reducing postoperative inflammation, oedema and reduces pain. This case report demonstrates the safe and positive outcome of LLLT in conjunction with demineralised bone matrix of bovine origin in the surgical treatment of a periodontal infrabony defect. After surgical defect debridement, low level semiconductor diode laser (GaAlAr) was delivered for 5 minutes to the inner margins of flap in contact mode and the defect was irradiated with LLLT in a non-contact mode for 10 minutes. Demineralised bone matrix graft was used as a bone grafting material. Repeat irradiation was done for the next 5 days on the outer buccal and lingual flap surfaces. A CAL gain of 4 mm and 37% bone fill was noted radiographically at end of 12 months. LLLT can be used as an adjunct to periodontal regeneration.
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Affiliation(s)
- Smiti Bhardwaj
- Research Associate, Department of Implantology, Maulana Azad Institute of Dental Sciences , New Delhi, India
| | - Joann Pauline George
- Professor, Department of Periodontology, Krishnadevaraya College of Dental Sciences & Hospital , Bangalore, Karnataka, India
| | - Divakaran Remigus
- Post Graduate Student, Department of Periodontology, Krishnadevaraya College of Dental Sciences & Hospital , Bangalore, Karnataka, India
| | - Divya Khanna
- Post Graduate Student, Department of Periodontology, Krishnadevaraya College of Dental Sciences & Hospital , Bangalore, Karnataka, India
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Kazancioglu HO, Aksakalli S, Ezirganli S, Birlik M, Esrefoglu M, Acar AH. Effect of caffeic acid phenethyl ester on bone formation in the expanded inter-premaxillary suture. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:6483-8. [PMID: 26730181 PMCID: PMC4694669 DOI: 10.2147/dddt.s97797] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Narrow maxilla is a common problem in orthodontics and dentofacial orthopedics. To solve this problem, a procedure called rapid maxillary expansion (RME) has been used. However, relapse tendency is a major problem of RME. Although relapse tendency is not clearly understood, various treatment procedures and new applications have been investigated. The present study aimed to investigate the possible effectiveness of caffeic acid phenethyl ester (CAPE) on new bone formation in rat midpalatal suture after RME. MATERIALS AND METHODS Twenty male Sprague Dawley rats were used in this study. The animals were randomly divided into two groups as control and CAPE group. In the CAPE group, CAPE was administered systemically via intraperitoneal injection. RME procedure was performed on all animals. For this purpose, the springs were placed on the maxillary incisors of rats and activated for 5 days. After then, the springs were removed and replaced with short lengths of rectangular retaining wire for consolidation period of 15 days. At the end of the study, histomorphometric analysis was carried out to assess new bone formation. RESULTS New bone formation was significantly greater in the CAPE group than the control group (P<0.05). CAPE enhances new bone formation in midpalatal suture after RME. CONCLUSION These results show that CAPE may decrease the time needed for retention.
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Affiliation(s)
- Hakki Oguz Kazancioglu
- Department of Oral and Maxillofacial Surgery, Bezmialem Vakif University, Istanbul, Turkey
| | - Sertac Aksakalli
- Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Seref Ezirganli
- Department of Oral and Maxillofacial Surgery, Bezmialem Vakif University, Istanbul, Turkey
| | - Muhammet Birlik
- Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Mukaddes Esrefoglu
- Department of Histology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ahmet Hüseyin Acar
- Department of Oral and Maxillofacial Surgery, Bezmialem Vakif University, Istanbul, Turkey
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Effects of low-level laser therapy on the expression of osteogenic genes during the initial stages of bone healing in rats: a microarray analysis. Lasers Med Sci 2015; 30:2325-33. [DOI: 10.1007/s10103-015-1807-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 09/10/2015] [Indexed: 12/22/2022]
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Colombo F, Neto ADAPV, Sousa APCD, Marchionni AMT, Pinheiro ALB, Reis SRDA. Effect of low-level laser therapy (λ660 nm) on angiogenesis in wound healing: a immunohistochemical study in a rodent model. Braz Dent J 2015; 24:308-12. [PMID: 24173246 DOI: 10.1590/0103-6440201301867] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 07/13/2013] [Indexed: 12/11/2022] Open
Abstract
The aim of the present investigation was to evaluate the angiogenesis on dorsal cutaneous wounds in a rodent model treated with λ660 nm laser light. New vessel formation is a multistep process involving vessel sprouting, endothelial cell migration, proliferation and tube formation. Although several in vivo studies have shown that laser phototherapy influences tissue repair, a fully understanding of angiogenesis mechanisms are not yet known. Twenty-four young adult male Wistar rats weighing between 200 and 250 g were used. Under general anesthesia, one excisional wound was created on the dorsum of each animal and they were randomly distributed into two groups: one control and one treated with laser (λ660 nm, 16 mW, 10 J/cm2). Each group was subdivided into three subgroups according to the animal death timing (2, 4 and 6 days). Laser irradiation started immediately after surgery and was repeated every other day during the experiment and marked with Sirius Red, specific for collagen, and immunomarked with anti-TGF-β and anti-von Willebrand factor. Marked sections underwent histological analysis by light microscopy and the mean area of the wound of each animal was calculated and analyzed by ANOVA and Tukey's test (α=0.05). Although at some death periods, collagen expression and number of blood vessels on irradiated animals were higher than in the control ones, no significant differences were found at any time in relation to TGF-β expression (p>0.05). It was concluded that laser treatment (λ660 nm) contributed to increase angiogenesis.
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30
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Manzano-Moreno FJ, Medina-Huertas R, Ramos-Torrecillas J, García-Martínez O, Ruiz C. The effect of low-level diode laser therapy on early differentiation of osteoblast via BMP-2/TGF-β1 and its receptors. J Craniomaxillofac Surg 2015; 43:1926-32. [PMID: 26447026 DOI: 10.1016/j.jcms.2015.08.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/17/2015] [Accepted: 08/26/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES The objective of this study was to determine the effect of LLDL therapy on the gene expression of osteoblast markers of growth and differentiation. MATERIALS AND METHODS The MG-63 cell line was exposed to diode laser (ezLase) of 940 nm at 1-1.5 W and 3-4 J, and gene expressions (Runx-2, alkaline phosphatase [ALP], type I collagen [Col-I], osterix [OSX], osteocalcin [OSC], osteoprotegerin [OPG], bone morphogenetic protein [BMP]-2 and -7, transforming growth factor-β1 [TGF-β1], and TGF-β receptors [TGF-β R1, TGF-β R2; TGF-β R3]) were evaluated by quantitative RT-PCR. RESULTS LLDL treatment stimulated the expression of osteoblast differentiation markers ALP, Col-I, Runx-2, and OSX in relation to the doses applied (P < 0.05), but no changes were detected in OSC, OPG, or BMP-7 at any study dose. This effect may be mediated by TGF-β1 and BMP-2, given that the treatment increased their expression and that of TGF-β receptors R1, R2, and R3 (P < 0.001). CONCLUSION These results suggest that the biostimulatory effect of laser therapy on osteoblasts may be attributable to the release of autocrine factors in response to the irradiation. A clinical trial is warranted to test its therapeutic usefulness in bone tissue regeneration and to define a treatment protocol.
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Affiliation(s)
- Francisco J Manzano-Moreno
- Department of Stomatology (Head: Prof. Pilar Aranda-Ramirez), School of Dentistry, University of Granada, Spain; Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Rosa Medina-Huertas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Olga García-Martínez
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain; Institute of Neuroscience (Head: Prof. Pilar Aranda-Ramirez), Parque Tecnológico Ciencias de la Salud, Armilla (Granada), University of Granada, Spain.
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Tang W, Tian J, Zheng Q, Yan L, Wang J, Li Z, Wang ZL. Implantable Self-Powered Low-Level Laser Cure System for Mouse Embryonic Osteoblasts' Proliferation and Differentiation. ACS NANO 2015; 9:7867-73. [PMID: 26161869 DOI: 10.1021/acsnano.5b03567] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Bone remodeling or orthodontic treatment is usually a long-term process. It is highly desirable to speed up the process for effective medical treatment. In this work, a self-powered low-level laser cure system for osteogenesis is developed using the power generated by the triboelectric nanogenerator. It is found that the system significantly accelerated the mouse embryonic osteoblasts' proliferation and differentiation, which is essential for bone and tooth healing. The system is further demonstrated to be driven by a living creature's motions, such as human walking or a mouse's breathing, suggesting its practical use as a portable or implantable clinical cure for bone remodeling or orthodontic treatment.
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Affiliation(s)
- Wei Tang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China
| | - Jingjing Tian
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China
| | - Qiang Zheng
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China
| | - Lin Yan
- School of Biological Science and Medical Engineering, Beihang University , Beijing 100191, China
| | - Jiangxue Wang
- School of Biological Science and Medical Engineering, Beihang University , Beijing 100191, China
| | - Zhou Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China
- School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States
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32
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Erdogan MS, Babacan H, Kara MI, Gurler B, Akgul H, Soyler DA. Effect of Capparis spinosa extract on sutural ossification: A stereological study. Arch Oral Biol 2015; 60:1146-52. [DOI: 10.1016/j.archoralbio.2015.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 04/08/2015] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
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The effect of laser therapy on the expression of osteocalcin and osteopontin after tooth extraction in rats treated with zoledronate and dexamethasone. Support Care Cancer 2015; 24:807-813. [PMID: 26190360 DOI: 10.1007/s00520-015-2847-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 07/06/2015] [Indexed: 12/20/2022]
Abstract
PURPOSE Laser therapy has been used for the prevention and management of medication-related ostenecrosis of the jaw (MRONJ). The aim of this paper was to investigate the action of laser therapy on extraction socket healing in rats in conditions at risk for MRONJ, evaluating the expression of markers of bone metabolism. METHODS Thirty male Sprague-Dawley rats were divided in four groups: control group (C, n = 5), laser group (L, n = 5), treatment group (T, n = 10), and treatment plus laser group (T + L, n = 10). Rats of group T and T + L received zoledronate 0.1 mg/kg and dexamethasone 1 mg/kg every 2 days for 10 weeks. Rats of group C and L were infused with vehicle. After 9 weeks, the left maxillary molars were extracted in all rats. Rats of groups L and T + L received laser therapy (Nd:YAG, 1064 nm, 1.25 W, 15 Hz, 5 min, 14.37 J/cm(2)) in the socket area at days 0, 2, 4, and 6 after surgery. Western blot analysis was performed to evaluate the alveolar expression of osteopontin (OPN) and osteocalcin (OCN) 8 days after extraction. RESULTS Rats of groups L and T + L showed a significant higher expression of OCN compared to rats of groups C and T (+348 and +400 %, respectively; P = 0.013 and P = 0.002, respectively). The expression of OPN did not show significant differences among the different groups. CONCLUSIONS Our findings suggest that laser irradiation after tooth extraction can promote osteoblast differentiation, as demonstrated by the higher expression of OCN. Thus, laser irradiation could be considered a way to improve socket healing in conditions at risk for MRONJ development.
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Aras MH, Bozdag Z, Demir T, Oksayan R, Yanık S, Sökücü O. Effects of low-level laser therapy on changes in inflammation and in the activity of osteoblasts in the expanded premaxillary suture in an ovariectomized rat model. Photomed Laser Surg 2015; 33:136-44. [PMID: 25719203 DOI: 10.1089/pho.2014.3820] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Osteoporosis is a progressive systemic skeletal disease characterized by reduced bone mass/density and microarchitectural deterioration of bone tissue. Bone formation initially exceeds bone resorption, but by the third decade, such formation is reversed, resulting in a net loss of bone mass. This resorption, in turn, increases bone fragility and susceptibility to fracture. This study aimed to evaluate the effects of low-level laser therapy (LLLT) on bone regeneration in the expanded premaxillary suture in an ovariectomized rat model. METHODS Thirty-two 12-week-old female Wistar albino rats were used in the experiment. All of the animals underwent ovariectomy 3 months before the experiment. Expansion appliances were affixed to the maxillary incisors for the expansion of premaxillary sutures. The premaxillary sutures of the laser group were exposed to 5 J/cm(2) laser energy, and no treatment was performed for the controls. All the rats in both groups were euthanized on either the 7th day (n=8) [end of expansion period; Laser Group 1(LG1) and Control Group 1 (CG1)] or the 17th day (n=8) [end of retention period; Laser Group 2 (LG2) and Control Group 2 (CG2)], respectively, for histological assessment. RESULTS Histological findings indicated that the LG1 group showed a significantly higher number of osteoblasts than did the CG1 group (p=0.028). The CG1 and CG2 groups showed a significantly higher number of osteoclasts than did the LG1 and LG2 groups, respectively (p=0.005), (p=0.032). The LG2 group exhibited a capillary increase similar to that of the other groups, without statistically significant differences. CONCLUSIONS On the basis of our methodology and results, we conclude that low-level laser associated with rapid maxillary expansion influences bone regeneration in sutures, thereby accelerating healing, even in ovariectomized rats. We found that LLLT decreased osteoclastic activity in the ovariectomized rats. Therefore, preventing osteoporosis necessitates further investigations to clarify the effect of LLLT on postmenopausal patients.
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Affiliation(s)
- Mutan Hamdi Aras
- 1 Department of Oral and Maxillofacial Surgery, Gaziantep University , Gaziantep, Turkey
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Altan AB, Bicakci AA, Avunduk MC, Esen H. The effect of dosage on the efficiency of LLLT in new bone formation at the expanded suture in rats. Lasers Med Sci 2014; 30:255-62. [DOI: 10.1007/s10103-014-1645-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 08/27/2014] [Indexed: 11/25/2022]
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The effects of low-level diode laser irradiation on differentiation, antigenic profile, and phagocytic capacity of osteoblast-like cells (MG-63). Lasers Med Sci 2014; 29:1479-84. [DOI: 10.1007/s10103-014-1557-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/21/2014] [Indexed: 11/30/2022]
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Kushibiki T, Hirasawa T, Okawa S, Ishihara M. Regulation of miRNA expression by low-level laser therapy (LLLT) and photodynamic therapy (PDT). Int J Mol Sci 2013; 14:13542-58. [PMID: 23807510 PMCID: PMC3742202 DOI: 10.3390/ijms140713542] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 06/19/2013] [Accepted: 06/20/2013] [Indexed: 12/13/2022] Open
Abstract
Applications of laser therapy, including low-level laser therapy (LLLT), phototherapy and photodynamic therapy (PDT), have been proven to be beneficial and relatively less invasive therapeutic modalities for numerous diseases and disease conditions. Using specific types of laser irradiation, specific cellular activities can be induced. Because multiple cellular signaling cascades are simultaneously activated in cells exposed to lasers, understanding the molecular responses within cells will aid in the development of laser therapies. In order to understand in detail the molecular mechanisms of LLLT and PDT-related responses, it will be useful to characterize the specific expression of miRNAs and proteins. Such analyses will provide an important source for new applications of laser therapy, as well as for the development of individualized treatments. Although several miRNAs should be up- or down-regulated upon stimulation by LLLT, phototherapy and PDT, very few published studies address the effect of laser therapy on miRNA expression. In this review, we focus on LLLT, phototherapy and PDT as representative laser therapies and discuss the effects of these therapies on miRNA expression.
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Affiliation(s)
- Toshihiro Kushibiki
- Department of Medical Engineering, National Defense Medical College 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.
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Wu JY, Chen CH, Yeh LY, Yeh ML, Ting CC, Wang YH. Low-power laser irradiation promotes the proliferation and osteogenic differentiation of human periodontal ligament cells via cyclic adenosine monophosphate. Int J Oral Sci 2013; 5:85-91. [PMID: 23788285 PMCID: PMC3707076 DOI: 10.1038/ijos.2013.38] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 05/16/2013] [Indexed: 12/14/2022] Open
Abstract
Retaining or improving periodontal ligament (PDL) function is crucial for restoring periodontal defects. The aim of this study was to evaluate the physiological effects of low-power laser irradiation (LPLI) on the proliferation and osteogenic differentiation of human PDL (hPDL) cells. Cultured hPDL cells were irradiated (660 nm) daily with doses of 0, 1, 2 or 4 J⋅cm−2. Cell proliferation was evaluated by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, and the effect of LPLI on osteogenic differentiation was assessed by Alizarin Red S staining and alkaline phosphatase (ALP) activity. Additionally, osteogenic marker gene expression was confirmed by real-time reverse transcription-polymerase chain reaction (RT-PCR). Our data showed that LPLI at a dose of 2 J⋅cm−2 significantly promoted hPDL cell proliferation at days 3 and 5. In addition, LPLI at energy doses of 2 and 4 J⋅cm−2 showed potential osteogenic capacity, as it stimulated ALP activity, calcium deposition, and osteogenic gene expression. We also showed that cyclic adenosine monophosphate (cAMP) is a critical regulator of the LPLI-mediated effects on hPDL cells. This study shows that LPLI can promote the proliferation and osteogenic differentiation of hPDL cells. These results suggest the potential use of LPLI in clinical applications for periodontal tissue regeneration.
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Affiliation(s)
- Jyun-Yi Wu
- Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
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Effect of the laser and light-emitting diode (LED) phototherapy on midpalatal suture bone formation after rapid maxilla expansion: a Raman spectroscopy analysis. Lasers Med Sci 2013; 29:859-67. [DOI: 10.1007/s10103-013-1284-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 02/07/2013] [Indexed: 10/27/2022]
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