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Leal SS, Gusmão GODM, Uchôa VT, Figueiredo-Silva J, Pinto LSS, Tim CR, Assis L, Maia-Filho ALM, de Oliveira RA, Lobo AO, Pavinatto A. Evaluation of How Methacrylate Gelatin Hydrogel Loaded with Ximenia americana L. Extract (Steam Bark) Effects Bone Repair Activity Using Rats as Models. J Funct Biomater 2023; 14:438. [PMID: 37754851 PMCID: PMC10531560 DOI: 10.3390/jfb14090438] [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: 07/05/2023] [Revised: 08/08/2023] [Accepted: 08/16/2023] [Indexed: 09/28/2023] Open
Abstract
The use of bioactive materials, such as Ximenia americana L., to stimulate the bone repair process has already been studied; however, the synergistic effects of its association with light emitting diode (LED) have not been reported. The present work aims to evaluate the effect of its stem bark extract incorporated into methacrylate gelatin hydrogel (GelMA) on the bone repair process using pure hydrogel and hydrogel associated with LED therapy. For this purpose, the GelMA hydrogel loaded with Ximenia americana L. extract (steam bark) was produced, characterized and applied in animal experiments. The tests were performed using 50 male Wistar rats (divided into 5 groups) submitted to an induced tibia diaphyseal fracture. The therapy effects were verified for a period of 15 and 30 days of treatment using histological analysis and Raman spectroscopy. After 15 days of induced lesion/treatment, the new bone formation was significantly higher in the GXG (GelMA + X. americana L.) group compared to the control group (p < 0.0001). After 30 days, a statistically significant difference was observed when comparing the GXLEDG (GelMA + X. americana L. + LED) and the control group (p < 0.0001), the GXG and the control group (p < 0.001), and when comparing the GG, GXG (p < 0.005) and GXLEDG (p < 0.001) groups. The results shows that the Ximenia americana L. stem extract incorporated into GelMA hydrogel associated with LED therapy is a potentiator for animal bone repair.
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Affiliation(s)
- Seânia Santos Leal
- Scientific and Technological Institute, Brazil University, São Paulo 08230-030, Brazil; (S.S.L.); (C.R.T.); (L.A.)
- Biotechnology and Biodiversity Research Center, State University of Piauí, Teresina 64002-150, Brazil; (J.F.-S.); (L.S.S.P.); (A.L.M.M.-F.)
| | | | | | - José Figueiredo-Silva
- Biotechnology and Biodiversity Research Center, State University of Piauí, Teresina 64002-150, Brazil; (J.F.-S.); (L.S.S.P.); (A.L.M.M.-F.)
| | - Lucielma Salmito Soares Pinto
- Biotechnology and Biodiversity Research Center, State University of Piauí, Teresina 64002-150, Brazil; (J.F.-S.); (L.S.S.P.); (A.L.M.M.-F.)
| | - Carla R. Tim
- Scientific and Technological Institute, Brazil University, São Paulo 08230-030, Brazil; (S.S.L.); (C.R.T.); (L.A.)
| | - Lívia Assis
- Scientific and Technological Institute, Brazil University, São Paulo 08230-030, Brazil; (S.S.L.); (C.R.T.); (L.A.)
| | - Antonio Luiz Martins Maia-Filho
- Biotechnology and Biodiversity Research Center, State University of Piauí, Teresina 64002-150, Brazil; (J.F.-S.); (L.S.S.P.); (A.L.M.M.-F.)
| | | | - Anderson Oliveira Lobo
- Interdisciplinary Laboratory for Advanced Materials (LIMAV), Materials Science & Engineering Graduate Program (PPGCM), Federal University of Piauí (UFPI), Teresina 64049-550, Brazil
| | - Adriana Pavinatto
- Scientific and Technological Institute, Brazil University, São Paulo 08230-030, Brazil; (S.S.L.); (C.R.T.); (L.A.)
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Freitas NRD, Guerrini LB, Esper LA, Sbrana MC, Santos CCVD, Almeida ALPFD. Photobiomodulation and Inorganic Bovine Bone in Guided Bone Regeneration: Histomorphometric Analysis in Rats. J Funct Biomater 2023; 14:jfb14050281. [PMID: 37233392 DOI: 10.3390/jfb14050281] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/10/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023] Open
Abstract
The objective of this study was to evaluate the efficacy of photobiomodulation in the bone regeneration of critical-sized defects (CSD) filled with inorganic bovine bone associated or not with collagen membranes. The study has been conducted on 40 critical defects in the calvaria of male rats, divided into four experimental groups (n = 10): (1) DBBM (deproteinized bovine bone mineral); (2) GBR (DBBM+collagen membrane); (3) DBBM+P (DBBM+photobiomodulation); and (4) GBR+P (GBR+photobiomodulation). At 30 days postoperative, the animals were euthanized, and after the tissue had been processed, histological, histometric, and statistical analyses were performed. The analyses have taken into account newly formed bone area (NBA), linear bone extension (LBE), and residual particle area (RPA) as variables. The Kruskal-Wallis test has been performed, followed by the Dwass-Steel-Critchlow-Fligner test for comparison between groups (p < 0.05). When the DBBM+P group was compared to the DBBM group, it was possible to observe significant statistical differences in all the variables analyzed (p < 0.05). The application of photobiomodulation in guided bone regeneration (GBR+P) has shown a decrease in the median value for the RPA variable (26.8) when compared to the GBR group (32.4), with a significant statistical difference; however, for NBA and LBE, the therapy has not provided significant results.
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Affiliation(s)
- Nicole Rosa de Freitas
- Postgraduate Program, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | - Luísa Belluco Guerrini
- Postgraduate Program, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | - Luis Augusto Esper
- Periodontics Sector, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru 17012-900, Brazil
| | - Michyele Cristhiane Sbrana
- Periodontics Sector, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru 17012-900, Brazil
| | | | - Ana Lúcia Pompéia Fraga de Almeida
- Periodontics Sector, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru 17012-900, Brazil
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
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Polo TOB, Fonseca-Santos JM, Momesso GAC, da Silva WPP, Barbosa S, Santos AMDS, Silva MC, Garcia VG, Theodoro LH, Faverani LP. Single intraoperative infrared laser optimized bone repair in rat femoral osteotomies with experimentally induced osteoporosis. Lasers Med Sci 2023; 38:87. [PMID: 36935455 DOI: 10.1007/s10103-023-03746-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/06/2023] [Indexed: 03/21/2023]
Abstract
This study aimed to evaluate the effect of infrared laser (IRL) on bone repair in ovariectomized rats subjected to femoral osteotomies. Of 32 rats, half underwent bilateral ovariectomy (OVX) and the other half underwent sham ovariectomy (SHAM). A period of 3 months was defined to observe the presence of osteoporosis. The rats were subjected to osteotomies in the femurs and then fixed with a miniplate and 1.5-mm system screws. Thereafter, half of the rats from both SHAM and OVX groups were not irradiated, and the other half were irradiated by IRL using the following parameters: wavelength, 808 nm; power, 100 mW; 60 s for each point; 6 J/point; and a total of 5 points of bone gap. All animals were euthanized 60 days after surgery. The femur gap was scanned using micro-computed tomography (micro-CT). The samples were then examined under a confocal laser microscope to determine the amounts of calcein and alizarin red. The slides were stained with alizarin red and Stevenel's blue for histometric analysis. In the micro-CT analysis, the OVX groups had the lowest bone volume (P < 0.05). When the laser was applied to the OVX groups, bone turnover increased (P < 0.05). New bone formation (NBF) was comparable between SHAM and OVX/IR (P > 0.05) groups; however, it was less in the OVX groups (P < 0.05). In conclusion, the results encourage the use of IRL intraoperatively as it optimizes bone repair, mainly in animals with low bone mineral density.
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Affiliation(s)
- Tárik Ocon Braga Polo
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | | | - Gustavo Antonio Correa Momesso
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
- Department of Implantology, University of Santo Amaro, Unisa, São Paulo, SP, Brazil
| | | | - Stefany Barbosa
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | | | - Mirela Caroline Silva
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Valdir Gouveia Garcia
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil
| | - Letícia Helena Theodoro
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil
| | - Leonardo P Faverani
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil.
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Tissue Bioengineering with Fibrin Scaffolds and Deproteinized Bone Matrix Associated or Not with the Transoperative Laser Photobiomodulation Protocol. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010407. [PMID: 36615601 PMCID: PMC9824823 DOI: 10.3390/molecules28010407] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 01/06/2023]
Abstract
Extending the range of use of the heterologous fibrin biopolymer, this pre-clinical study showed a new proportionality of its components directed to the formation of scaffold with a lower density of the resulting mesh to facilitate the infiltration of bone cells, and combined with therapy by laser photobiomodulation, in order to accelerate the repair process and decrease the morphofunctional recovery time. Thus, a transoperative protocol of laser photobiomodulation (L) was evaluated in critical bone defects filled with deproteinized bovine bone particles (P) associated with heterologous fibrin biopolymer (HF). The groups were: BCL (blood clot + laser); HF; HFL; PHF (P+HF); PHFL (P+HF+L). Microtomographically, bone volume (BV) at 14 days, was higher in the PHF and PHFL groups (10.45 ± 3.31 mm3 and 9.94 ± 1.51 mm3), significantly increasing in the BCL, HFL and PHFL groups. Histologically, in all experimental groups, the defects were not reestablished either in the external cortical bone or in the epidural, occurring only in partial bone repair. At 42 days, the bone area (BA) increased in all groups, being significantly higher in the laser-treated groups. The quantification of bone collagen fibers showed that the percentage of collagen fibers in the bone tissue was similar between the groups for each experimental period, but significantly higher at 42 days (35.71 ± 6.89%) compared to 14 days (18.94 ± 6.86%). It can be concluded that the results of the present study denote potential effects of laser radiation capable of inducing functional bone regeneration, through the synergistic combination of biomaterials and the new ratio of heterologous fibrin biopolymer components (1:1:1) was able to make the resulting fibrin mesh less dense and susceptible to cellular permeability. Thus, the best fibrinogen concentration should be evaluated to find the ideal heterologous fibrin scaffold.
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Fekrazad S, Sohrabi M, Fekrazad R. Angiogenetic and anti-inflammatory effects of photobiomodulation on bone regeneration in rat: A histopathological, immunohistochemical, and molecular analysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112599. [PMID: 36493717 DOI: 10.1016/j.jphotobiol.2022.112599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 04/27/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
Post-surgical bone defects require new alternative approaches for a better healing process. For this matter, photobiomodulation therapy (PBMT) has been used in order to improve the process of healing, pain, and inflammation reduction and tissue rejuvenation. This study is set to evaluate the effect of PBMT on angiogenic and inflammatory factors for bone regeneration in rat post-surgical cranial defects. Thirty male Wistar rats were distributed accidentally into two groups (Subdivided into 3 groups according to their follow-up durations). During operation, an 8-mm critical-sized calvarial defect was made in each rat. A continuous diode laser was used (power density 100 mW/cm2, wavelength 810 nm, the energy density of 4 J/cm2). Bone samples were assessed histomorphometrically and histologically after hematoxylin and eosin (H&E) staining. ALP, PTGIR, OCN, and IL-1 levels were measured by RT-PCR. VEGF expression was studied by immunohistochemistry analysis. The level of IL-1 expression decreased significantly in the PBMT group compared to the control after 7 days (p < 0.05), while, the PTGIR level was improved significantly compared to the control group after 7 days. Furthermore, levels of OCN and ALP improved after PBM use; however, the alterations were not statistically meaningful (p > 0.05). Evaluation with IHC displayed a significant rise in VEGF expression after 3 days in the PBMT group compared to the control (p > 0.05). In this study's conditions, the results showed a meaningful alteration in osteogenic, inflammatory, and angiogenic mediators in post-surgical calvarial defect following PBMT. It appears that PBM can accelerate angiogenesis in the bone healing procedure which can be helpful in bone tissue engineering.
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Affiliation(s)
- Sepehr Fekrazad
- Department of General Surgery, Subdivision of Surgical Oncology, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Sohrabi
- Department of Pediatrics, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Reza Fekrazad
- Radiation Sciences Research Center, AJA University of Medical Sciences - International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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Turgut F, Yanmaz LE. Investigating effects of locally applied boric acid on fracture healing with and without low-level laser therapy. Lasers Med Sci 2022; 38:11. [PMID: 36539645 DOI: 10.1007/s10103-022-03695-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the effects on fracture healing of locally applied boric acid (BA) with and without low-level laser therapy (LLLT). A unicortical femoral defect was surgically created on the anterolateral surface of proximal femur of each subject. The subjects, totaling 56 Wistar albino rats, were randomly allocated into four groups (n = 14 each): control, LLLT (λ = 905 μm, 10,000 Hz, 25 mW, and peak power 25 W), BA (40 mg/kg), and BA + LLLT groups. On the 30th day, the highest radiological score was recorded for the BA + LLLT group (3.63 [2-4]), followed by the BA (3.38 [2.75-3.75]), control (3 [2-3.25]), and LLLT (2.5 [1.25-3]) groups. On days 15 and 30 post-surgery, malondialdehyde levels were significantly lower among the BA + LLLT group compared to the control group (p < 0.001). On day 30, superoxide dismutase, catalase, and alkaline phosphatase levels were highest in the BA + LLLT group compared to the control group (p < 0.001). When the histopathological, immunofluorescence, and immunohistochemical findings on the 15th and 30th days were compared with the control group, a statistically significant difference was found for the BA and BA + LLLT groups (p ˂ 0.05). This study suggests that locally applied BA with LLLT may accelerate fracture healing.
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Affiliation(s)
- Ferda Turgut
- Department of Surgery, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey.
| | - Latif Emrah Yanmaz
- Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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Kuzu TE, Öztürk K, Gürgan CA, Üşümez A, Yay A, Göktepe Ö. Effect of Photobiomodulation Therapy on Peri-Implant Bone Healing in Extra-Short Implants in a Rabbit Model: A Pilot Study. Photobiomodul Photomed Laser Surg 2022; 40:402-409. [PMID: 35749706 DOI: 10.1089/photob.2021.0098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Objective: To evaluate the effects of photobiomodulation therapy (PBMT) at distinct energy levels on peri-implant bone healing in extra-short implants in a experimental rabbit model. Background: The effect of PBMT on peri-implant bone healing in short implants remains unclear. This explored the effect of PBMT on extra-short implants in terms of bone-implant contact (BIC) length and rate, and implant stability quotient (ISQ). Methods: Fifteen white New Zealand rabbits were randomly divided into five groups. In all groups, extra-short implants (3.5 × 4 mm; Nucleoss T6, İzmir/Turkey) were placed in both tibias of the rabbits. PBMT was performed in four groups (group 1, 5 J/cm2; group 2, 10 J/cm2; group 3, 20 J/cm2; and group 4, 25 J/cm2); no PBMT was performed in the control group. On the 30th day, the rabbits were sacrificed and peri-implant tissue samples were obtained to determine the BIC length and BIC rate. Implant stability levels were measured by resonance frequency analysis using the Osstell penguin device and were determined as ISQ values on the 1st and 30th days of the study. Results: PBMT significantly increased the BIC length and BIC rate in groups 3 and 4 (p < 0.001). For the ISQ values, there were significant differences between the 1st and 30th day (p < 0.001). On the 30th day, the ISQ values were significantly higher in groups 3 and 4 compared with the remaining groups (p < 0.001). Conclusions: In this study, PBMT improved peri-implant bone healing through increase in BIC length, BIC rate, and ISQ parameter values in extra-short implants.
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Affiliation(s)
- Turan Emre Kuzu
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Kübra Öztürk
- Department of Oral and Maxillofacial Surgery, and Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Cem A Gürgan
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Aslihan Üşümez
- Department of Prosthodontics, Dental Plus Dental Clinic, İstanbul, Turkey
| | - Arzu Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Özge Göktepe
- Department of Histology and Embryology, Erciyes University, Kayseri, Turkey
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Morshedzadeh G, Aslroosta H, Vafaei M. Effect of GaAlAs 940 nm Photobiomodulation on palatal wound healing after free gingival graft surgery: a split mouth randomized controlled clinical trial. BMC Oral Health 2022; 22:202. [PMID: 35610702 PMCID: PMC9131644 DOI: 10.1186/s12903-022-02229-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/11/2022] [Indexed: 12/24/2022] Open
Abstract
Background The aim of this study was to evaluate the effects of photobiomodulation (PBM) on wound healing, pain, and discomfort at free gingival graft (FGG) donor sites.
Methods Sixteen patients in need of bilateral FGG were selected for this randomized, controlled, triple-blinded, and split mouth clinical trial. The FGG donor sites in test group were treated with LLLT GaAlAs 940 nm, 5 J/cm2 immediately after surgery and every other day within the following ten days. The control group received sham irradiation. Remaining Wound Area (RWA), Epithelialization and color match were evaluated on the day of surgery and 7, 14, 21, 28, and 60 days after surgery. A questionnaire was administered to measure pain and bleeding in the first ten days after surgery. Results RWA was significantly smaller in the test than control group on the days 7 (p < 0.001) and 14 (p = 0.048) after the surgery. Bleeding was higher in the test group than in the control group on the day of surgery (p = 0.046). Pain and discomfort at the palatal donor site, however, had no significant difference between laser and control group during 11 days after the surgery (p > 0.05), nor did the Color match scores on the 28th and 60th days after the surgery (p > 0.05). Conclusions It can be concluded that PBM enhances FGG donor site wound healing one and two weeks after the surgery. Trial registration IRCT2017092036203N2, registered 01.11.2017.
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Affiliation(s)
- Ghazal Morshedzadeh
- Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Hoori Aslroosta
- Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mahsa Vafaei
- Department of Restorative Dentistry, Babol University of Medical Sciences, Mazandaran, Iran
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Shavakhi M, Tahamtan S, Saki M, Fekrazad R. Effectiveness of Photobiomodulation on Orthodontic Mini Screw Stability: A Systematic Review. Photobiomodul Photomed Laser Surg 2021; 39:747-758. [DOI: 10.1089/photob.2021.0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Mojgan Shavakhi
- Department of Orthodontics, Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shabnam Tahamtan
- Department of Orthodontics, Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Saki
- Health System Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Fekrazad
- Radiation Sciences Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran
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Arshad M, Ghanavati Z, Aminishakib P, Rasouli K, Shirani G. Effect of Light-Emitting Diode Phototherapy on Allograft Bone After Open Sinus Lift Surgery: A Randomized Clinical Trial (Concurrent Parallel). J Lasers Med Sci 2021; 12:e16. [PMID: 34733739 DOI: 10.34172/jlms.2021.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Phototherapy with a light-emitting diode (LED) is used in medicine due to its potential bio-stimulatory effects on the human body. However, controversy still exists regarding the efficacy of low-level laser therapy (LLLT) and phototherapy with LED. This in vivo study aimed to quantitatively and qualitatively assess the newly formed bone following LED phototherapy of the human maxillary sinuses. Methods: This randomized clinical trial (concurrent parallel) was conducted on 44 patients in two groups (n=22) at the Implant Department of Tehran University of Medical Sciences. Randomization was done by a random sequence generator program. The inclusion criteria were absence of chronic sinusitis and chronic bone marrow conditions, no history of surgery at the site, absence of diabetes mellitus, no history of chemotherapy or radiotherapy, maxillary premolar edentulism, and signing informed consent forms. Group A underwent LED phototherapy with 620 ± 2 nm wavelength for 20 minutes daily for a total of 21 days after sinus lift surgery. Group B served as the control group and did not receive phototherapy. After 6 months, the grafted sites were re-opened for implant placement, and bone biopsy samples were obtained using a trephine bur. The samples were stained with hematoxylin and eosin and inspected under a light microscope. The results were statistically analyzed using the Mann-Whitney U test. Both the surgeon and pathologist were blinded to the group allocation of patients. Results: Forty tissue specimens were analyzed. Insignificant differences existed between the two groups in terms of the degree of inflammation, bone quality, and maturity of collagen. Histological analyses revealed no significant difference in the mineralized areas of bone between the two groups (P >0.05). Conclusion: The results indicated that LED phototherapy cannot significantly enhance osteogenesis after sinus lift surgery. No side effects were observed in the experimental group.
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Affiliation(s)
- Mahnaz Arshad
- Associate Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran Iran.,Department of Prosthodontics, School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghanavati
- D.D.S., School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Pouyan Aminishakib
- Associate Professor, Oral and Maxillofacial Pathologist, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Kamran Rasouli
- Dental Student, School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Shirani
- Associate Professor, Department of Oral and Maxillofacial Surgery, Craniomaxillofacial Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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635 nm LED irradiation may prevent endoplasmic reticulum stress in MC3T3-E1 cells. J Mol Histol 2021; 53:75-83. [PMID: 34676487 DOI: 10.1007/s10735-021-10034-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
Although endoplasmic reticulum (ER) stress is thought to be involved in various diseases such as cancer, metabolic, and inflammatory disorders, the relationship between ER stress and bone diseases, are remains unclear. Tunicamycin-treated MC3T3-E1 osteoblasts were used as the ER stress model in this study. 635 nm light-emitting diode irradiation (635 nm-IR) was carried out for 1 h before and after inducing ER stress. To investigate the effects of 635 nm-IR on ER stress-induced MC3T3-E1 osteoblasts and the underlying mechanism, western blot, reverse transcription polymerase chain reaction, alkaline phosphatase and Alizarin red staining, 2',7'-dichlorodyhydrofluorescein diacetate assay, Fluo-3AM and immunocytochemistry were performed. Pretreatment with 635 nm-IR effectively prevented intracellular reactive oxygen species production and alleviated ER stress through the pancreatic ER kinase (PERK)-eukaryotic initiation factor 2 (eIF2)-activating transcription factor 4 (ATF4)-nuclear factor-like 2 (Nrf2) signaling pathway. Hence, 635 nm-IR may serve a protective role in the treatment of ER stress-related bone diseases.
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The Effect of Space Travel on Bone Metabolism: Considerations on Today's Major Challenges and Advances in Pharmacology. Int J Mol Sci 2021; 22:ijms22094585. [PMID: 33925533 PMCID: PMC8123809 DOI: 10.3390/ijms22094585] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022] Open
Abstract
Microgravity-induced bone loss is currently a significant and unresolved health risk for space travelers, as it raises the likelihood for irreversible changes that weaken skeletal integrity and the incremental onset of fracture injuries and renal stone formation. Another issue related to bone tissue homeostasis in microgravity is its capacity to regenerate following fractures due to weakening of the tissue and accidental events during the accomplishment of particularly dangerous tasks. Today, several pharmacological and non-pharmacological countermeasures to this problem have been proposed, including physical exercise, diet supplements and administration of antiresorptive or anabolic drugs. However, each class of pharmacological agents presents several limitations as their prolonged and repeated employment is not exempt from the onset of serious side effects, which limit their use within a well-defined range of time. In this review, we will focus on the various countermeasures currently in place or proposed to address bone loss in conditions of microgravity, analyzing in detail the advantages and disadvantages of each option from a pharmacological point of view. Finally, we take stock of the situation in the currently available literature concerning bone loss and fracture healing processes. We try to understand which are the critical points and challenges that need to be addressed to reach innovative and targeted therapies to be used both in space missions and on Earth.
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Oliveira GJPLD, Pinotti FE, Aroni MAT, Marcantonio E, Marcantonio RAC. Effect of different low-level intensity laser therapy (LLLT) irradiation protocols on the osseointegration of implants placed in grafted areas. J Appl Oral Sci 2021; 29:e20200647. [PMID: 33886940 PMCID: PMC8054649 DOI: 10.1590/1678-7757-2020-0647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/15/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To evaluate the effect of different protocols of low-level intensity laser therapy (LLLT) irradiation on the osseointegration of implants placed in grafted areas. METHODOLOGY 84 rats were randomly allocated into six groups: DBB: defect filled with deproteinized bovine bone; HA/TCP: defect filled with biphasic ceramic of hydroxyapatite/β-tricalcium phosphate ; DBB-LI: defect filled with DBB and treated with LLLT after implant placement; HA/TCP-LI: defect filled with HA/TCP and treated with LLLT after implant placement; DBB-LIB: defect filled with DBB and treated with LLLT after graft procedure and implant placement; and HA/TCP-LIB: defect filled HA/TCP and treated with LLLT after graft procedure and implant placement. The bone defects were made in the tibia and they were grafted. After 60 days, the implants were placed. The rats were subsequently subjected to euthanasia 15 and 45 days after implant placement. The pattern of osseointegration and bone repair in the grafted area was evaluated by biomechanical, microtomographic, and histometric analyses. Furthermore, the expression of bone biomarker proteins was assessed. RESULTS The LLLT groups presented higher removal torque, mineralized tissue volume, and a greater degree of osseointegration, especially when LLLT was performed only after implant placement, and these findings were associated with higher expression of BMP2 and alkaline phosphatase. CONCLUSION LLLT performed on implants placed in grafted areas enhances the osseointegration process.
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Affiliation(s)
| | - Felipe Eduardo Pinotti
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departmento de Diagnóstico e Cirurgia, Araraquara, SP, Brasil
| | | | - Elcio Marcantonio
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departmento de Diagnóstico e Cirurgia, Araraquara, SP, Brasil
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Jiang Y, Feng J, Du J, Fu J, Liu Y, Guo L, Liu Y. Clinical and biochemical effect of laser as an adjunct to non-surgical treatment of chronic periodontitis. Oral Dis 2021; 28:1042-1057. [PMID: 33715262 PMCID: PMC9292540 DOI: 10.1111/odi.13847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 12/17/2022]
Abstract
Objectives To evaluate the clinical and biochemical efficacy of laser therapy as an adjunct to non‐surgical treatment in chronic periodontitis. Methods A systematic search was performed through the PubMed, EMBASE, and Cochrane Library for eligible articles published as of May 2, 2020, supplemented by information search in the System for Information on Programme Literature in Europe and a manual literature search. Only randomized controlled trials (RCTs) used to compare the adjunctive use of laser and non‐surgical treatment alone with an observation period of at least 6 months were included. Results Sixteen RCTs with a total of 525 subjects were included. Meta‐analysis suggested that the additional use of laser to scaling and root planing (SRP) showed significant superiority over SRP alone among most of clinical parameters involved. Regarding the GCF, although volume in the laser group was lower at week 4 and 12, no significant difference was found regarding the cytokines level. Subgroup analysis revealed that the combined therapy produced no significant difference in PD, CAL and PI at most time points for studies in respect to smokers. No treatment‐related adverse events had been reported in the included studies. Conclusions Pooled analysis suggested that laser‐assisted non‐surgical treatment improved clinical outcome to SRP alone in the management of non‐smoking chronic periodontitis patients.
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Affiliation(s)
- Yiyang Jiang
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Jie Feng
- Department of General Dentistry, School of Stomatology Wangfujing Division, Capital Medical University, Beijing, China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Jingfei Fu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Yitong Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
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Polo TOB, Momesso GAC, Silva WPP, Santos AMDS, Fonseca-Santos JM, da Cruz NC, Barão VAR, Garcia VG, Theodoro LH, Faverani LP. Is an anodizing coating associated to the photobiomodulation able to optimize bone healing in ovariectomized animal model? JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 217:112167. [PMID: 33667733 DOI: 10.1016/j.jphotobiol.2021.112167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/10/2021] [Accepted: 02/23/2021] [Indexed: 10/22/2022]
Abstract
This in vivo study investigated whether the bioactivity of anodizing coating, produced by plasma electrolytic oxidation (PEO), on mini-plate in femur fracture could be improved with the association of photobiomodulation (PBM) therapy. From the 20 ovariectomized Wistar female rats, 8 were used for model characterization, and the remaining 12 were divided into four groups according to the use of PBM therapy by diode laser (808 nm; power: 100 mW; energy: 6.0 J; energy density: 212 J/cm2; power density: 3.5 W/cm2) and the type of mini-plate surface (commercially pure titanium mini-plate -cpTi- and PEO-treated mini-plate) as follow: cpTi; PEO; cpTi/PBM; and PEO/PBM. After 60 days of surgery, fracture healing underwent microstructural, bone turnover, histometric, and histologic adjacent muscle analysis. Animals of groups with PEO and PBM showed greater fracture healing than cpTi control group under histometric and microstructural analysis (P < 0.05); however, bone turnover was just improved in PBM's groups (P < 0.05). there was no difference between cpTi and PEO without PBM (P > 0.05). Adjacent muscle analysis showed no metallic particles or muscle alterations in all groups. PEO and PBM are effective strategies for bone repair in fractures, however their association does not provide additional advantages.
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Affiliation(s)
- Tárik Ocon Braga Polo
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Gustavo Antônio Correa Momesso
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - William Phillip Pereira Silva
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Anderson Maikon de Souza Santos
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - João Matheus Fonseca-Santos
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Nilson Cristino da Cruz
- Technological Plasma Laboratory (LaPTec), Experimental Campus of Sorocaba, São Paulo State University (UNESP), Sorocaba, São Paulo, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Valdir Gouveia Garcia
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Letícia Helena Theodoro
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Leonardo P Faverani
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil.
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Torquato LC, Suárez EAC, Bernardo DV, Pinto ILR, Mantovani LO, Silva TIL, Jardini MAN, Santamaria MP, De Marco AC. Bone repair assessment of critical size defects in rats treated with mineralized bovine bone (Bio-Oss®) and photobiomodulation therapy: a histomorphometric and immunohistochemical study. Lasers Med Sci 2021; 36:1515-1525. [PMID: 33400010 DOI: 10.1007/s10103-020-03234-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 12/22/2020] [Indexed: 10/22/2022]
Abstract
This study aimed to investigate the effects of administering photobiomodulation therapy (PBM) with bovine bone matrix on critical size defects in rats. Seventy-two adult male rats (albinus, Wistar), 90 days old, were used. Defect of 5 mm in diameter was made in their calvaria. The animals were divided into 4 groups: C-blood clot, B-Bio-Oss®, L-PBM, B+L-Bio-Oss®+PBM. Each group has been subdivided into 07, 30, and 60 days of observation. For PBM, a low GaAlAs energy of 660 nm was irradiated, total energy density of 45 J/cm2 . PBM was conducted in a trans-surgical form once only. For immunohistochemistry, a semi-quantitative analysis was made of expression of osteoprotegerin (OPG), nuclear kappa B-factor ligand receptor activator (RANKL), and tartrate-resistant acid phosphatase (TRAP). All histomorphometric data were statistically analyzed by ANOVA and Tukey test, significance level of 5%. The groups that showed the highest proportion of neoformation were L (0.39% ± 0.13) and C (0.37% ± 0.97), but groups B and B+L had larger defect size (C-1.75 mm2 ± 0.40, B-3.02 mm2 ± 0.63, L-2.45 mm2 ± 0.53, B+L-3.23 mm2 ± 1.01). In immunohistochemistry, groups B and B+L had higher immunostaining scores for OPG and RANKL at 60 days, and TRAP immunostaining increased in all groups at 30 days, but group L was the only one to present specimens with score 0. Although, at 60 days, groups L and C presented the highest proportion of bone neoformation, at 30 days group B+L had more than twice as much bone neoformation as group B, the choice of treatment application should depend on the aim of the treatment.
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Affiliation(s)
- Letícia Cavassini Torquato
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil.
| | - Eduardo Antonio Chelin Suárez
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil
| | - Daniella Viscensotto Bernardo
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil
| | | | | | - Thiago Igor Lemes Silva
- São Paulo State University (UNESP), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - Maria Aparecida Neves Jardini
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
| | - Mauro Pedrine Santamaria
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
| | - Andrea Carvalho De Marco
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
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Incerti Parenti S, Tschon M, Sartori M, Visani A, Aroni E, Fini M, Alessandri-Bonetti G. Evidence from systematic reviews on photobiomodulation of human bone and stromal cells: Where do we stand? Arch Biochem Biophys 2020; 685:108333. [PMID: 32194044 DOI: 10.1016/j.abb.2020.108333] [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: 08/09/2019] [Revised: 02/17/2020] [Accepted: 03/10/2020] [Indexed: 01/08/2023]
Abstract
This study summarizes the available evidence from systematic reviews on the in vitro effects of photobiomodulation on the proliferation and differentiation of human bone and stromal cells by appraising their methodological quality. Improvements for future studies are also highlighted, with particular emphasis on in vitro protocols and cell-related characteristics. Six reviews using explicit eligibility criteria and methods selected in order to minimize bias were included. There was no compelling evidence on the cellular mechanisms of action or treatment parameters of photobiomodulation; compliance with quality assessment was poor. A rigorous description of laser parameters (wavelength, power, beam spot size, power density, energy density, repetition rate, pulse duration or duty cycle, exposure duration, frequency of treatments, and total radiant energy), exposure conditions (methods to ensure a uniform irradiation and to avoid cross-irradiation, laser-cell culture surface distance, lid presence during irradiation) and cell-related characteristics (cell type or line, isolation and culture conditions, donor-related factors where applicable, tissue source, cell phenotype, cell density, number of cell passages in culture) should be included among eligibility criteria for study inclusion. These methodological improvements will maximize the contribution of in vitro studies on the effects of photobiomodulation on human bone and stromal cells to evidence-based translational research.
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Affiliation(s)
- Serena Incerti Parenti
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
| | - Matilde Tschon
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Maria Sartori
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Andrea Visani
- Laboratory of Biomechanics and Technology Innovation, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Elena Aroni
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
| | - Milena Fini
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Giulio Alessandri-Bonetti
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
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Cheng W, Yao M, Sun K, Li W. Progress in Photobiomodulation for Bone Fractures: A Narrative Review. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:260-271. [PMID: 32427551 DOI: 10.1089/photob.2019.4732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: The aim of this article is to examine current concepts and the future direction of implementing photobiomodulation (PBM) for fracture treatment. Background data: The effectiveness of PBM for bone regeneration has been demonstrated throughout in vitro studies and animal models. Yet, insufficient clinical trials have been reported on treating fractures with PBM. Materials and methods: A narrative review was composed on the basis of a literary search. Inclusion criteria consisted of studies between 2000 and 2019 using animal or human fracture models. Exclusion criteria consisted of studies that did not pertain to complete fractures or used other forms of intervention. Results: Ten animal studies on rats and rabbits and four clinical trials were found on using PBM for complete fractures. Conclusions: Based on positive outcomes in animal trials, parameter optimization of PBM for human fractures still requires extensive research on factors such as dosage, wavelength, penetration depth, treatment frequency, and the use of pulsed waves.
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Affiliation(s)
- Weyland Cheng
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Manye Yao
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Keming Sun
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Weili Li
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
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Extracorporeal Shock-Wave Therapy or Low-Level Laser Therapy: Which is More Effective in Bone Healing in Bisphosphonate Treatment? J Craniofac Surg 2020; 31:2043-2048. [DOI: 10.1097/scs.0000000000006506] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Lin CH, Wu SY, Hu WL, Hung CH, Hung YC, Aurea Kuo CE. Laser acupuncture for refractory coccydynia after traumatic coccyx fracture: A case report. Medicine (Baltimore) 2020; 99:e18860. [PMID: 32028396 PMCID: PMC7015655 DOI: 10.1097/md.0000000000018860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Coccyx fracture is an injury usually caused by trauma. In most cases, the fractures recover after conservative therapy. For refractory cases that exhibit coccydynia after more than 2 months of conservative treatment, coccygectomy is indicated. However, limited information about the efficacy of this procedure is available, and it is known to have a high complication rate. As such, other therapeutic approaches are needed. Here, we report our experience using another conservative treatment option, low-level laser therapy, to successfully reduce refractory coccydynia in a patient with coccyx fracture. PATIENT CONCERNS A 23-year-old woman had refractory coccydynia and increased pain after a traffic accident-induced coccyx fracture. DIAGNOSES Initially, the patient reported transient improvement after conservative treatment with non-steroidal anti-inflammatory drugs. However, the pain increased in severity (numerical rating scale score of 8) soon after she resumed work in her office, and progressed in the following 2 months. Surgical intervention was suggested owing to the prolonged coccydynia following the failure of conservative treatment and difficulties in performing daily life activities. However, she sought other conservative therapy options, because she was concerned about the risks associated with the coccygectomy surgery. INTERVENTIONS The patient received low-level laser therapy once a week, for 24 weeks. OUTCOMES After 11 weeks of treatment, the patient reported significant improvements in her symptoms; her pain was reduced to a numerical rating scale score of 2 and bone healing was noted on radiographs. The patient could eventually perform her daily activities satisfactorily, without coccydynia, after 24 weeks of treatment. LESSONS Laser acupuncture produced analgesic effects in this patient with refractory coccydynia after traumatic coccyx fracture. This is the first case report to apply laser acupuncture for refractory coccydynia after traumatic coccyx fracture. Our findings imply that laser acupuncture may be a good conservative therapy option for coccyx fracture.
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Affiliation(s)
- Chien-Hung Lin
- Department of Traditional Medicine, Kaohsiung Chang Gung Memorial Hospital
| | - Szu-Ying Wu
- Department of Traditional Medicine, Kaohsiung Chang Gung Memorial Hospital
- Department of Sports Medicine
| | - Wen-Long Hu
- Department of Traditional Medicine, Kaohsiung Chang Gung Memorial Hospital
- College of Medicine, Kaohsiung Medical University
- College of Nursing, Fooyin University, Kaohsiung
| | - Chia-Hung Hung
- Department of Orthopaedics, Fu Jen Catholic University Hospital, Taipei
| | - Yu-Chiang Hung
- Department of Traditional Medicine, Kaohsiung Chang Gung Memorial Hospital
- School of Chinese Medicine for Post Baccalaureate, I-Shou University, Kaohsiung
| | - Chun-En Aurea Kuo
- Department of Traditional Medicine, Kaohsiung Chang Gung Memorial Hospital
- Department of Nursing, Meiho University, Pingtung, Taiwan
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Escudero JSB, Perez MGB, de Oliveira Rosso MP, Buchaim DV, Pomini KT, Campos LMG, Audi M, Buchaim RL. Photobiomodulation therapy (PBMT) in bone repair: A systematic review. Injury 2019; 50:1853-1867. [PMID: 31585673 DOI: 10.1016/j.injury.2019.09.031] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 01/16/2019] [Accepted: 09/20/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Photobiomodulation therapy (PBMT) using low-level laser influences the release of several growth factors involved in the formation of epithelial cells, fibroblasts, collagen and vascular proliferation, besides accelerating the synthesis of bone matrix due to the increased vascularization and lower inflammatory response, with significant increase of osteocytes in the irradiated bone. Considering its properties, beneficial effects and clinical relevance, the aim of this review was to analyze the scientific literature regarding the use of PBMT in the process of bone defect repair. METHODS Electronic search was carried out in PubMed/MEDLINEⓇ and Web of Science databases with combination of the descriptors low-level laser therapy AND bone repair, considering the period of publication until the year 2018. RESULTS The literature search identified 254 references in PubMed/MEDLINE and 204 in Web of Science, of which 33 and 4 were selected, respectively, in accordance with the eligibility requirements. The analysis of researches showed articles using PBMT in several places of experimentation in the subjects, different types of associated biomaterials, stimulatory effects on cell proliferation, besides variations in the parameters of use of laser therapy, mainly in relation to the wavelength and density of energy. Only four articles reported that the laser did not improve the osteogenic properties of a biomaterial. CONCLUSIONS Many studies have shown that PBMT has positive photobiostimulatory effects on bone regeneration, accelerating its process regardless of parameters and the use of biomaterials. However, standardization of its use is still imperfect and should be better studied to allow correct application concerning the utilization protocols.
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Affiliation(s)
- Jose Stalin Bayas Escudero
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Maria Gabriela Benitez Perez
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | | | - Daniela Vieira Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil; Medical School, Discipline of Human Morphophysiology, University of Marilia (UNIMAR), Marília, SP, Brazil; Medical School, Discipline of Neuroanatomy, University Center of Adamantina (UNIFAI), Adamantina, SP, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | | | - Mauro Audi
- Physiotherapy School, University of Marilia (UNIMAR), Marília-SP, Brazil
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil; Medical School, Discipline of Human Morphophysiology, University of Marilia (UNIMAR), Marília, SP, Brazil.
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Luca RE, Todea CD, Duma VF, Bradu A, Podoleanu AG. Quantitative assessment of rat bone regeneration using complex master-slave optical coherence tomography. Quant Imaging Med Surg 2019; 9:782-798. [PMID: 31281774 PMCID: PMC6571200 DOI: 10.21037/qims.2019.05.03] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 04/25/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND The need for hard and soft tissues in oral implantology determined the development of methods and techniques to increase bone volume and their quality with different alternative materials used as substituents of patient's natural bone. In addition, laser radiation can be used to accelerate the repair of fractures and to produce an increased volume of formed callus, as well as an increased bone mineral density. METHODS The aim of this work is to evaluate the capability of an in-house developed multimodal complex master slave (CMS) enhanced swept source (SS) optical coherence tomography (OCT) imaging instrument to analyze the increase in the quantity and the improvement of the quality of newly-formed bone using low level laser therapy (LLLT). Bone formation is quantitatively assessed in 5 mm cylindrical defects made in the calvaria part of the skull of living rats. Samples are divided in three study groups: A, a negative control group, for which the natural healing process of the defect is investigated; B, a positive control group, for which bovine graft is used to stimulate bone formation, and C, a study group, in which bovine graft is added to the created defects and LLLT is applied throughout the entire healing period. The animals are sacrificed after 14, 21, and 30 days, and the samples are imaged using the multimodal CMS/SS-OCT instrument. RESULTS The method allows for the simultaneous monitoring of the bone tissue via two perpendicular cross-sections and nine en-face images taken at adjustable depths into the sample. A global image with course axial resolution allows for the positioning of the field-of-view of the system on the area of interest on the tissue. The quantitative assessment of the process of bone formation is completed using the differences in brightness between the native bone, the artificial bone graft, and the newly-formed bone. CONCLUSIONS Group C is demonstrated to have a higher volume of newly-formed bone than Group B, which is better from this point of view than Group A. By analyzing the evolution of this volume of new bone in time, the most significant difference was after 21 days, therefore approximately after two thirds of the total time interval analyzed. After 30 days, the volumes of bone tend to move closer, as they begin to fill the available gap. The study demonstrates that OCT can assess quantitatively the positive impact of LLLT on bone regeneration.
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Affiliation(s)
- Ruxandra Elena Luca
- School of Dental Medicine, Victor Babeş University of Medicine and Pharmacy, Timisoara, Romania
| | - Carmen Darinca Todea
- School of Dental Medicine, Victor Babeş University of Medicine and Pharmacy, Timisoara, Romania
| | - Virgil-Florin Duma
- 3OM Optomechatronics Group, Faculty of Engineering, Aurel Vlaicu University of Arad, Arad, Romania
- Doctoral School, Polytechnic University of Timisoara, Timisoara, Romania
| | - Adrian Bradu
- School of Physical Sciences, University of Kent, Canterbury, UK
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Hosseinpour S, Fekrazad R, Arany PR, Ye Q. Molecular impacts of photobiomodulation on bone regeneration: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2019; 149:147-159. [PMID: 31002851 DOI: 10.1016/j.pbiomolbio.2019.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Photobiomodulation (PBM) encompasses a light application aimed to increase healing process, tissue regeneration, and reducing inflammation and pain. PBM is specifically aimed to modify the expression of cellular molecules; however, PBM impacts on cellular and molecular pathways especially in bone regenerative medicine have been investigated in scattered different studies. The purpose of the current study is to systematically review evidence on molecular impact of PBM on bone regeneration. A comprehensive electronic search in Medline, Scopus, EMBASE, EBSCO, Cochrane library, web of science, and google scholar was conducted from January 1975 to October 2018 limited to English language publications on administrations of photobiomodulation for bone regeneration which evaluated biological factors. In addition, hand search of selected journals was done to retrieve all articles. This systematic review was performed based on PRISMA guideline. Among these studies, five articles reported in vitro results, twelve articles were in vivo, and three of them were clinical trials. The data tabulated according to the type of markers (osteogenic markers, angiogenic markers, growth factors, and inflammation mediators). PBM's effects depend on many parameters which energy density is more important than the others. PBM can significantly enhance expression of osteocalcin, collagen, RUNX-2, vascular endothelial growth factor, bone morphogenic proteins, and COX-2. Although since the heterogeneity of the studies and their limitations, an evidence-based decision for definite therapeutic application of PBM is still unattainable, the findings of our review can help other researchers to ameliorate their study design and elect more efficient approach for their investigation.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia; Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran.
| | - Reza Fekrazad
- Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran; International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Praveen R Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, NY, 14214, USA.
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.
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24
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Scalize PH, de Sousa LG, Gonçalves LMN, Pitol DL, Palinkas M, Coppi AA, Righeti MA, Ricardo V, Bombonato‐Prado KF, Regalo SCH, Siessere S. Low-level laser therapy enhances the number of osteocytes in calvaria bone defects of ovariectomized rats. Animal Model Exp Med 2019; 2:51-57. [PMID: 31016287 PMCID: PMC6431244 DOI: 10.1002/ame2.12056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/18/2018] [Accepted: 01/09/2019] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Osteoporosis can make bone repair difficult. Low-level laser therapy (LLLT) has been shown to be a promising tool for bone neoformation. This study aimed to analyze the effect of LLLT on calvaria bone defects of ovariectomized rats using stereology. METHODS Fifty-four Wistar rats were subjected to bilateral ovariectomy, and bone defects were created in calvaria after 150 days. The animals were divided into nine groups (n = 6 per group), and 24 hours after the bone defects were created they received 3, 6 or 12 sessions of LLLT at 0, 20 or 30 J/cm2, using a 780-nm low-intensity GaAlAs laser. One-way ANOVA followed by Tukey's post hoc test was used for data processing. A difference of P < 0.05 was considered statistically significant. The parameters evaluated were osteocyte density (Nv ost), total osteocyte number (Nto ost), trabecular surface density (Sv t), and trabecular surface area (Sa t). RESULTS Data obtained showed that Nto ost, Sv t, and Sa t in group G2 rats were significantly different from G1 (0 J/cm2) (P < 0.05). Compared to group G4, G5 presented higher values for the parameters Sv t and Sa t, and G6 presented significantly higher values for almost all the analyzed parameters (Nv ost, Nto ost, Sv t, and Sa t) (P < 0.05). Compared to group G7, G8 showed a higher value only for the parameter Sa t, and G9 showed significantly higher values for parameters Nv ost, Nto ost, Sv t, and Sa t. CONCLUSION We conclude that LLLT stimulated bone neoformation and contributed to an increase in the total number of osteocytes, especially with a laser energy density of 30 J/cm2 given for 6 and 12 sessions.
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Affiliation(s)
- Priscilla Hakime Scalize
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Luiz Gustavo de Sousa
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Lígia Maria Napolitano Gonçalves
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Dimitrius Leonardo Pitol
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Marcelo Palinkas
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Antônio Augusto Coppi
- Faculty of Health and Medical SciencesSchool of Veterinary MedicineUniversity of SurreyGuildfordSurreyUK
| | - Mariah Acioli Righeti
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Vitória Ricardo
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Karina Fittipaldi Bombonato‐Prado
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Simone Cecílio Hallak Regalo
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
| | - Selma Siessere
- Department of Morphology, Physiology and Basic PathologySchool of Dentistry of Ribeirão PretoUSP ‐ University of São PauloRibeirão PretoSPBrazil
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25
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Morsoleto MJMDS, Sella V, Machado P, Bomfim FD, Fernandes MH, Morgado F, Lopes Filho GDJ, Plapler H. Effect of low power laser in biomodulation of cultured osteoblastic cells of Wistar rats1. Acta Cir Bras 2019; 34:e201900210. [PMID: 30843943 PMCID: PMC6585914 DOI: 10.1590/s0102-8650201900210] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/22/2019] [Indexed: 02/08/2023] Open
Abstract
Purpose To analyze aspects of the biomodulating effect of light in biological
tissues, bone cells from surgical explants of the femur of rats were
irradiated with low intensity laser. Methods Bone cells were cultured and irradiated with LASER light (GaAlAs). Growth,
cell viability, mineralized matrix formation, total protein dosage,
immunostimulatory properties, cytochemical analysis, gene expression of bone
proteins were examined using live cell imaging and cell counting by
colorimetric assay. The gene expression of: alkaline phosphatase (ALP), type
1 collagen, osteocalcin and osteopontin through the real-time polymerase
chain reaction. Results At 8 days, the viability of the irradiated culture was 82.3% and 72.4% in
non-irradiated cells. At 18 days, the cellular viability (with laser) was
77.42% and 47.62% without laser. At 8 days, the total protein concentration
was 21.622 mg / mol in the irradiated group and 16, 604 mg / mol in the
non-irradiated group and at 18 days the concentration was 37.25 mg / mol in
the irradiated group and 24, 95 mg / mol in the non-irradiated group. Conclusion The laser interfered in the histochemical reaction, cell viability, matrix
mineralization, and maintained the cellular expression of proteins
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Affiliation(s)
- Maria Jose Misael da Silva Morsoleto
- Postdoctoral, Postgraduate Program in Interdisciplinary Surgical Sciences, Universidade Federal de São Paulo (UNIFESP), Brazil. Design, intellectual and scientific content of the study; acquisition and interpretation of data; manuscript preparation and writing
| | - Valeria Sella
- Fellow PhD degree, Postgraduate Program in Interdisciplinary Surgical Science, UNIFESP, Sao Paulo-SP, Brazil. Conception and design of the study
| | - Paula Machado
- Physiotherapist, Postgraduate Program in Interdisciplinary Surgical Sciences, UNIFESP, Sao Paulo-SP, Brazil. Technical procedures
| | - Fernando do Bomfim
- Fellow PhD degree, Postgraduate Program in Interdisciplinary Surgical Sciences, UNIFESP, Sao Paulo-SP, Brazil. Technical procedures
| | - Maria Helena Fernandes
- Associate Professor, Department of Pharmacology and Cellular Compatibility, Dental Medicine Faculty, Universidade do Porto, Portugal. Histopathological examinations, Analysis and interpretation of data
| | - Fernando Morgado
- Associate Professor, Department of Biology, Universidade de Aveiro, Portugal. Analysis and interpretation of data, statistics analysis
| | - Gaspar de Jesus Lopes Filho
- Associate Professor, Department of Surgery, Medical School, UNIFESP, Sao Paulo-SP, Brazil. Critical revision, final approval
| | - Helio Plapler
- Associate Professor, Department of Surgery, Medical School, UNIFESP, Sao Paulo-SP, Brazil. Conception, design, intellectual and scientific content of the study; critical revision
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26
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Hu Y, Zhang T, Huang H, Cheng W, Lai Y, Bai X, Chen J, Yue Y, Zheng Z, Guo C, Qin L, Zhang P. Fracture healing in a collagen-induced arthritis rat model: Radiology and histology evidence. J Orthop Res 2018; 36:2876-2885. [PMID: 29802743 DOI: 10.1002/jor.24060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 05/23/2018] [Indexed: 02/04/2023]
Abstract
This research was designed to investigate the fracture healing pattern in a rheumatoid arthritis (RA) rat model. A mid-shaft femur fracture (RA + F) model and normal fracture (NF) model as control were established. Micro-CT, H&E staining, TB staining, SO staining, tartrate-resistant acid phosphates, and immunohistochemistry test were performed. In the micro-CT images and H&E stains, fracture gaps were evident in the RA + F group 4 and 8 weeks after fracture. In detail, the bone mineral density, the ratio of bone volume to tissue volume, and trabecular thickness of the RA + F group were significantly lower than those of the NF group at all time points. Trabecular number value was significantly lower in the RA + F group 4 weeks after surgery in comparison with that of the NF group. Furthermore, the structure model index test result of the RA + F group was significantly higher than that of the NF group at all time points. TB staining and SO staining test results showed that the NF group had more cartilaginous callus in the earlier stage of bone healing process (4 weeks), and less cartilage callus formation in the later stage (8 weeks) in comparison with that of the RA + F group. Osteoclasts statistics score in the NF group were obviously lower than that of the RA + F group at all time points. MMP-3 and OPN protein levels of the fracture area in the RA + F group were significantly higher than those in the NF group. This study improves the understanding of the bone healing characteristics in patients with RA. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:2876-2885, 2018.
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Affiliation(s)
- Yiping Hu
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China
| | - Tiantian Zhang
- Department of Rheumatology, People's Hospital of Baoan District, Shen Zhen, Guangdong, 518128, China
| | - Huan Huang
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China
| | - Wenxiang Cheng
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China
| | - Yuxiao Lai
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China
| | - Xueling Bai
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China
| | - Jianhai Chen
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China
| | - Ye Yue
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China
| | - Zhengtan Zheng
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China
| | - Chengshan Guo
- Department of Rheumatology, People's Hospital of Baoan District, Shen Zhen, Guangdong, 518128, China
| | - Ling Qin
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China.,Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, Hong Kong, 999077, China
| | - Peng Zhang
- Center for Translational Medicine Research and Development, Shen Zhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shen Zhen, Guangdong, 518055, China.,Shen Zhen College of Advanced Technology, University of Chinese Academy of Sciences, Shen Zhen, Guangdong, 518055, China
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27
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Bomfim FRCD, Sella VRG, Thomasini RL, Plapler H. Influence of low-level laser irradiation on osteocalcin protein and gene expression in bone tissue1. Acta Cir Bras 2018; 33:736-743. [PMID: 30328905 DOI: 10.1590/s0102-865020180090000001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/10/2018] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To evaluate osteocalcin gene and protein expression in vitro and in an in vivo model of ostectomy. METHODS Twenty Wistar rats were assigned into two groups A (n=10, laser) and B (n=10, control). Ostectomy was performed in the femur diaphysis; the twenty fragments removed, composed in vitro groups named as in vivo (A and B) and cultivated in CO2 atmosphere for thirteen days. Low-level laser irradiation was performed in groups A (in vivo and in vitro) by an GaAlAs device (λ=808 nm, dose of 2J/cm2, power of 200mW, power density of 0.2W/cm2, total energy of 1.25J, spot diameter of 0.02mm) for 5 seconds, at one point, daily. It was performed immunocytochemistry assays in vivo and in vitro groups. In vitro groups were also submitted to RNA extraction, cDNA synthesis and gene expression by quantitative PCR. Statistical analysis was realized with p<0.05. RESULTS Immunocytochemistry scores showed no significant differences between control and laser groups either in vivo and in vitro. Gene expression also showed no statistical differences. CONCLUSION Low-level laser irradiation did not alter osteocalcin protein and gene expression in vivo and in vitro in the studied period but it may have been expressed them in an earlier period.
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Affiliation(s)
- Fernando Russo Costa do Bomfim
- BSc, MSc, Fellow PhD degree, Postgraduate Program in Interdisciplinary Surgical Science, Universidade Federal de São Paulo (UNIFESP), Brazil. Conception and design of the study, acquisition of data, histopathological examinations, manuscript writing
| | - Valeria Regina Gonzalez Sella
- PhD, Operative Technique and Experimental Surgery Division, Department of Surgery, UNIFESP, Sao Paulo-SP, Brazil. Technical procedures, manuscript preparation
| | - Ronaldo Luís Thomasini
- BSc, PhD, Full Professor, Medicine Faculty, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Diamantina-MG, Brazil. Acquisition, analysis and interpretation of data; critical revision
| | - Helio Plapler
- PhD, Full Professor, Operative Technique and Experimental Surgery Division, Department of Surgery, UNIFESP, Sao Paulo-SP, Brazil. Manuscript writing, critical revision, final approval
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28
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Sefati N, Abbaszadeh HA, Fadaei Fathabady F, Abdollahifar MA, Amini A, Noori-Zadeh A, Darabi S, Norouzian M. Therapeutic Effects of Laser on Partial Osteotomy in the Rat Model of Hypothyroidism. J Lasers Med Sci 2018; 9:121-127. [PMID: 30026897 DOI: 10.15171/jlms.2018.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Several experimental studies have displayed positive result for laser radiation on stimulating bone regeneration in recent years. The purpose of this experimental study was to determine low-level laser (LLL) effects on partial bone defects in hypothyroidism male rat. Methods: Forty male Wistar rats were randomly distributed as below groups: hypothyroidism + laser (Hypo + laser), hypothyroidism (Hypo), and control. Four weeks after surgery, the tibia bone was removed. Biomechanical and histological examinations were performed immediately. Results: Our results showed significant reduction in the absorption of energy, resistance in bending deformation (bending stiffness), maximum force, high stress load, trabecular bone volume, and number of osteocytes, osteoblasts and osteoclasts in the osteotomy site in hypothyroidism rats compared to hypothyroidism + laser group (P<0.05). Conclusion: The results indicated that using laser may improve fracture regeneration and it may accelerate bone healing in hypothyroidism rat.
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Affiliation(s)
- Niloofar Sefati
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hojjat-Allah Abbaszadeh
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Fadaei Fathabady
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Noori-Zadeh
- Department of Clinical Biochemistry, Faculty of Paramedicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Shahram Darabi
- Cellular and Molecular Research Center, Qazvin University of Medical Science, Qazvin, Iran
| | - Mohsen Norouzian
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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29
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Study on the effect of nano-hydroxyapatite on bone repair of athletes. Wideochir Inne Tech Maloinwazyjne 2018; 13:221-226. [PMID: 30002755 PMCID: PMC6041591 DOI: 10.5114/wiitm.2018.73973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/21/2018] [Indexed: 12/05/2022] Open
Abstract
Introduction Minimally invasive surgery is a widely used method for bone repair. Nano-hydroxyapatite (n-HA) is a non-toxic and harmless bone repair material. Aim To study the repair effect of n-HA/PA66 on the lumbar vertebrae injury of basketball players. Material and methods Firstly, the n-HA/PA66 material was prepared and its properties were studied. Then, the n-HA/PA66 material was used in a rabbit vertebral replacement experiment to study its bone coverage, fiber coverage and bone density. Afterwards, the material was used in vertebral injury treatment of basketball players to study its bone repairing effect. Results It was found that the fiber coverage of artificial vertebral bodies of n-HA/PA66 material tended to decrease with the increase of replacement time but no significant difference was found in the fiber coverage at different times (p > 0.05); the longer the replacement time, the greater the bone coverage, with statistically significant differences (p < 0.05); as the replacement time increased, the density and osteogenic volume increased; the Japanese Orthopaedic Association (JOA) scoring both 3 months and 6 months after surgery was greater than that immediately after surgery, with a significant difference (p < 0.05); the difference of angle of Cobb showed a decreasing trend with the increase of replacement time, and there was a significant difference (p < 0.05); follow-up results showed that the subjects had no rejection reaction. Conclusions N-HA material played an important role in basketball players’ bone repair treatment and is worth being promoted for application.
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Mostafavinia A, Masteri Farahani R, Abdollahifar MA, Ghatrehsamani M, Ghoreishi SK, Hajihossainlou B, Chien S, Dadras S, Rezaei F, Bayat M. Evaluation of the Effects of Photobiomodulation on Partial Osteotomy in Streptozotocin-Induced Diabetes in Rats. Photomed Laser Surg 2018; 36:406-414. [PMID: 29851368 DOI: 10.1089/pho.2018.4438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE We examined the effects of photobiomodulation (PBM) on stereological parameters, and gene expression of Runt-related transcription factor 2 (RUNX2), osteocalcin, and receptor activator of nuclear factor kappa-B ligand (RANKL) in repairing tissue of tibial bone defect in streptozotocin (STZ)-induced type 1 diabetes mellitus (TIDM) in rats during catabolic response of fracture healing. BACKGROUND DATA There were conflicting results regarding the efficacy of PBM on bone healing process in healthy and diabetic animals. MATERIALS AND METHODS Forty-eight rats have been distributed into four groups: group 1 (healthy control, no TIDM and no PBM), group 2 (healthy test, no TIDM and PBM), group 3 (diabetic control, TIDM and no PBM), and group 4 (diabetic test, no TIDM and PBM). TIDM was induced in the groups 3 and 4. A partial bone defect in tibia was made in all groups. The bone defects of groups second and fourth were irradiated by a laser (890 nm, 80 Hz, 1.5 J/cm2). Thirty days after the surgery, all bone defects were extracted and were submitted to stereological examination and real-time polymerase chain reaction (RT-PCR). RESULTS PBM significantly increased volumes of total callus, total bone, bone marrow, trabecular bone, and cortical bone, and the numbers of osteocytes and osteoblasts of callus in TIDM rats compared to those of callus in diabetic control. In addition, TIDM increased RUNX2, and osteocalcin in callus of tibial bone defect compared to healthy group. PBM significantly decreased osteocalcin gene expression in TIDM rats. CONCLUSIONS PBM significantly increased many stereological parameters of bone repair in an STZ-induced TIDM during catabolic response of fracture healing. Further RT-PCR test demonstrated that bone repair was modulated in diabetic rats during catabolic response of fracture healing by significant increase in mRNA expression of RUNX2, and osteocalcin compared to healthy control rats. PBM also decreased osteocalcin mRNA expression in TIDM rats.
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Affiliation(s)
| | - Reza Masteri Farahani
- 2 Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- 2 Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Mahdi Ghatrehsamani
- 3 Cellular and Molecular Research Center, Shahrekord University of Medical Sciences , Shahrekord, Iran
| | | | - Behnam Hajihossainlou
- 5 Department of Internal Medicine, Aroura Bay Area Medical Center , Marinette, Wisconsin
| | - Sufan Chien
- 6 Price Institute of Surgical Research, University of Louisville, and Noveratech LLC of Louisville, Kentucky; supplied in part by NIH grant DK 105692
| | - Sara Dadras
- 2 Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | | | - Mohammad Bayat
- 8 Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences , Tehran, Iran
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31
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de Freitas NR, Guerrini LB, Esper LA, Sbrana MC, Dalben GDS, Soares S, de Almeida ALPF. Evaluation of photobiomodulation therapy associated with guided bone regeneration in critical size defects. In vivo study. J Appl Oral Sci 2018; 26:e20170244. [PMID: 29742256 PMCID: PMC5933825 DOI: 10.1590/1678-7757-2017-0244] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/08/2017] [Accepted: 09/18/2017] [Indexed: 03/25/2024] Open
Abstract
The repair of bone defects raises the interest of investigators in several health specialties. Grafting techniques with bone substitutes and laser therapies have been investigated to replace autogenous bone and accelerate the bone healing process. Objective To evaluate the effect of photobiomodulation therapy (PBMT) associated with guided bone regeneration (GBR) in critical size defects. Material and Methods The study was conducted on 80 male rats (Rattus norvegicus albinus, Wistar) submitted to surgical creation of a critical size defect on the calvaria, divided into eight study groups: group C (control - only blood clot); group M (collagen membrane); group PBMT (photobiomodulation therapy); group AB (autogenous bone); group AB+PBMT; group AB+M; group PBMT+M; group AB+PBMT+M. The animals were killed 30 days postoperatively. After tissue processing, bone regeneration was evaluated by histomorphometric analysis and statistical analyses were performed (Tukey test, p<0.05). Results All groups had greater area of newly formed bone compared to group C (9.96±4.49%). The group PBMT+M (achieved the greater quantity of new bone (64.09±7.62%), followed by groups PBMT (47.67±8.66%), M (47.43±15.73%), AB+PBMT (39.15±16.72%) and AB+PBMT+M (35.82±7.68%). After group C, the groups AB (25.10±16.59%) and AB+M (22.72±13.83%) had the smallest quantities of newly formed bone. The area of remaining particles did not have statistically significant difference between groups AB+M (14.93±8.92%) and AB+PBMT+M (14.76±6.58%). Conclusion The PBMT utilization may be effective for bone repair, when associated with bone regeneration techniques.
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Affiliation(s)
- Nicole Rosa de Freitas
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Pós-Graduação em Reabilitação Oral, Bauru, São Paulo, Brasil
| | - Luísa Belluco Guerrini
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Pós-Graduação em Reabilitação Oral, Bauru, São Paulo, Brasil
| | - Luis Augusto Esper
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Periodontia, Bauru, São Paulo, Brasil
| | - Michyele Cristhiane Sbrana
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Periodontia, Bauru, São Paulo, Brasil
| | - Gisele da Silva Dalben
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Odontopediatria e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Simone Soares
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Prótese e Periodontia, Bauru, São Paulo, Brasil
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Effects of low-level laser therapy on soft and hard tissue healing after endodontic surgery. Lasers Med Sci 2018; 33:1699-1706. [DOI: 10.1007/s10103-018-2523-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/22/2018] [Indexed: 10/17/2022]
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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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Kunimatsu R, Gunji H, Tsuka Y, Yoshimi Y, Awada T, Sumi K, Nakajima K, Kimura A, Hiraki T, Abe T, Naoto H, Yanoshita M, Tanimoto K. Effects of high-frequency near-infrared diode laser irradiation on the proliferation and migration of mouse calvarial osteoblasts. Lasers Med Sci 2018; 33:959-966. [PMID: 29302842 DOI: 10.1007/s10103-017-2426-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 12/20/2017] [Indexed: 02/06/2023]
Abstract
Laser irradiation activates a range of cellular processes and can promote tissue repair. Here, we examined the effects of high-frequency near-infrared (NIR) diode laser irradiation on the proliferation and migration of mouse calvarial osteoblastic cells (MC3T3-E1). MC3T3-E1 cells were cultured and exposed to high-frequency (30 kHz) 910-nm diode laser irradiation at a dose of 0, 1.42, 2.85, 5.7, or 17.1 J/cm2. Cell proliferation was evaluated with BrdU and ATP concentration assays. Cell migration was analyzed by quantitative assessment of wound healing using the Incucyt® ZOOM system. In addition, phosphorylation of mitogen-activated protein kinase (MAPK) family members including p38 mitogen-activated protein kinase (p38), stress-activated protein kinase/Jun-amino-terminal kinase (SAPK/JNK), and extracellular signal-regulated protein kinase (ERK)1/2) after laser irradiation was examined with western blotting. Compared to the control, cell proliferation was significantly increased by laser irradiation at a dose of 2.85, 5.7, or 17.1 J/cm2. Laser irradiation at a dose of 2.85 J/cm2 induced MC3T3-E1 cells to migrate more rapidly than non-irradiated control cells. Irradiation with the high-frequency 910-nm diode laser at a dose of 2.85 J/cm2 induced phosphorylation of MAPK/ERK1/2 15 and 30 min later. However, phosphorylation of p38 MAPK and SAPK/JNK was not changed by NIR diode laser irradiation at a dose of 2.85 J/cm2. Irradiation with a high-frequency NIR diode laser increased cell division and migration of MT3T3-E1 cells, possibly via MAPK/ERK signaling. These observations may be important for enhancing proliferation and migration of osteoblasts to improve regeneration of bone tissues.
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Affiliation(s)
- Ryo Kunimatsu
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
| | - Hidemi Gunji
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Yuji Tsuka
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Yuki Yoshimi
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Tetsuya Awada
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Keisuke Sumi
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Kengo Nakajima
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Aya Kimura
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Tomoka Hiraki
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Takaharu Abe
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Hirose Naoto
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Makoto Yanoshita
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Kotaro Tanimoto
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
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Bayat M, Virdi A, Jalalifirouzkouhi R, Rezaei F. Comparison of effects of LLLT and LIPUS on fracture healing in animal models and patients: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018; 132:3-22. [PMID: 28688752 DOI: 10.1016/j.pbiomolbio.2017.07.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/30/2017] [Accepted: 07/04/2017] [Indexed: 12/29/2022]
Abstract
The aim of this paper is to study the in vivo potency of low-level laser therapy (LLLT) and low intensity pulsed ultrasound (LIPUS) alone, accompanied by bone grafts, or accompanied by other factors on fracture healing in animal models and patients. In this paper, we aim to systematically review the published scientific literature regarding the use of LLLT and LIPUS to accelerate fracture healing in animal models and patients. We searched the PubMed database for the terms LLLT or LIPUS and/or bone, and fracture. Our analysis also suggests that both LIPUS and LLLT may be beneficial to fracture healing in patients, and that LIPUS is more effective. These finding are of considerable importance in those treatments with a LIPUS, as a laser device may reduce healing time. The most clinically relevant impact of the LIPUS treatment could be a significant reduction in the proportion of patients who go on to develop a nonunion. If it is confirmed that the therapeutic influence is true and reliable, patients will obtain benefits from LIPUS and LLLT. Further clinical trials of high methodological quality are needed in order to determine the optimal role of LIPUS and LLLT in fracture healing in patients.
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Affiliation(s)
- Mohammad Bayat
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA; Cellular and Molecular Biology Research Center, Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Amarjit Virdi
- Department of Cell & Molecular Medicine, (formerly, Anatomy and Cell Biology), Rush University Medical Center, 1750 W. Harrison St., Suite 1413A, Chicago, IL 60612, USA.
| | | | - Fatemehalsadat Rezaei
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Effects of low-level laser therapy and platelet concentrate on bone repair: Histological, histomorphometric, immunohistochemical, and radiographic study. J Craniomaxillofac Surg 2017; 45:1846-1853. [DOI: 10.1016/j.jcms.2017.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 07/03/2017] [Accepted: 08/10/2017] [Indexed: 11/21/2022] Open
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Cobb CM. Lasers and the treatment of periodontitis: the essence and the noise. Periodontol 2000 2017; 75:205-295. [DOI: 10.1111/prd.12137] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Yildirimturk S, Sirin Y, Soluk Tekkesin M, Gurler G, Firat D. The effects of low-level laser therapy on the healing of bone defects in streptozotocin-induced diabetic rats: A histological and morphometric evaluation. J COSMET LASER THER 2017. [PMID: 28622041 DOI: 10.1080/14764172.2017.1341048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND The aim of the present study was to evaluate the effects of low-level laser therapy (LLLT) on the healing of bone defects in rats with streptozotocin (STZ)-induced DM. METHODS 28 male Sprague-Dawley rats were used in this study. 14 animals received a single dose of STZ intraperitoneally (65 mg/kg) to induce Type I DM, whereas others were injected only with sterile saline solution. Four weeks later, standard bone defects were created in the tibiae of rats. Surgical wounds in one group from each of the diabetic and non-diabetic animals were irradiated with diode laser for every other day for 4 weeks and they were described as DM + LLLT and CONT + LLLT groups, respectively. Remaining two groups received no laser treatment. New bone formation, osteoblast and blood vessel counts were calculated in histologic sections. RESULTS DM group had significantly smaller bone area and lower blood vessel count when compared to DM + LLLT, CONT and CONT + LLLT groups (p < 0.05 for each). CONT and CONT + LLLT groups had significantly larger bone area than DM + LLLT group (p < 0.05 for both). CONCLUSIONS LLLT application promoted vascularization and new bone formation in animals with DM to a limited extent, since it was unable to support the healing process up to the level of non-diabetic animals.
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Affiliation(s)
- Senem Yildirimturk
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
| | - Yigit Sirin
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
| | | | - Gokhan Gurler
- c Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul Medipol University , Istanbul , Turkey
| | - Deniz Firat
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
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Sarvestani FK, Dehno NS, Nazhvani SD, Bagheri MH, Abbasi S, Khademolhosseini Y, Gorji E. Effect of low-level laser therapy on fracture healing in rabbits. Laser Ther 2017; 26:189-193. [PMID: 29133966 DOI: 10.5978/islsm.17-or-14] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 05/24/2017] [Indexed: 11/06/2022]
Abstract
Background and aims The purpose of this study was to investigate the effect of low-level laser therapy (LLLT) on radial bone fracture gap healing in a rabbit model. Materials Subjects and Methods Thirty male white New Zealand rabbits under general anesthesia had a 3mm slice of radial bone surgically removed. Fifteen rabbits were treated by 830 nm laser at 4 J/cm2 and 15 were used as non-treated controls. Callus development was assessed by X-ray and radiographs every 7 days for 3 weeks. Results Significant radiologic changes were observed in both groups against time (P > 0.001) or from week to week (P > 0.05). However, there was no statistical difference in radiologic scores after week 2 (P = 0.087) or week 3 (P = 0.077) between control and laser treated bone. Conclusions Findings suggest that in this study, laser treatment did not enhance callus formation nor reduce repair time of complete fracture of the radius in rabbits.
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Affiliation(s)
- Fahimeh Kamali Sarvestani
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.,Rehabilitation Science Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasrin Salehi Dehno
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mohammad Hadi Bagheri
- Medical Imaging Research Center, Department of Radiology, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheila Abbasi
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Elham Gorji
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
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The Comparison of the Efficacy of Blue Light-Emitting Diode Light and 980-nm Low-Level Laser Light on Bone Regeneration. J Craniofac Surg 2016; 27:2185-2189. [DOI: 10.1097/scs.0000000000003068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Robijns J, Censabella S, Bulens P, Maes A, Mebis J. The use of low-level light therapy in supportive care for patients with breast cancer: review of the literature. Lasers Med Sci 2016; 32:229-242. [DOI: 10.1007/s10103-016-2056-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 08/12/2016] [Indexed: 12/11/2022]
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Multiple Integrated Complementary Healing Approaches: Energetics & Light for bone. Med Hypotheses 2016; 86:18-29. [DOI: 10.1016/j.mehy.2015.10.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/30/2015] [Indexed: 02/08/2023]
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43
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Decreased Bone Volume and Bone Mineral Density in the Tibial Trabecular Bone Is Associated with Per2 Gene by 405 nm Laser Stimulation. Int J Mol Sci 2015; 16:27401-10. [PMID: 26580614 PMCID: PMC4661886 DOI: 10.3390/ijms161126028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/07/2015] [Accepted: 11/10/2015] [Indexed: 11/18/2022] Open
Abstract
Low-level laser therapy/treatment (LLLT) using a minimally invasive laser needle system (MILNS) might enhance bone formation and suppress bone resorption. In this study, the use of 405 nm LLLT led to decreases in bone volume and bone mineral density (BMD) of tibial trabecular bone in wild-type (WT) and Per2 knockout (KO) mice. Bone volume and bone mineral density of tibial trabecular bone was decreased by 405 nm LLLT in Per2 KO compared to WT mice at two and four weeks. To determine the reduction in tibial bone, mRNA expressions of alkaline phosphatase (ALP) and Per2 were investigated at four weeks after 405 nm laser stimulation using MILNS. ALP gene expression was significantly reduced in the LLLT-stimulated right tibial bone of WT and Per2 KO mice compared to the non-irradiated left tibia (p < 0.001). Per2 mRNA expression in WT mice was significantly reduced in the LLLT-stimulated right tibial bone compared to the non-irradiated left tibia (p < 0.001). To identify the decrease in tibial bone mediated by the Per2 gene, levels of runt-related transcription factor 2 (Runx2) and ALP mRNAs were determined in non-irradiated WT and Per2 KO mice. These results demonstrated significant downregulation of Runx2 and ALP mRNA levels in Per2 KO mice (p < 0.001). Therefore, the reduction in tibial trabecular bone resulting from 405 nm LLLT using MILNS might be associated with Per2 gene expression.
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Nascimento MFD, Almeida BMD, Cunha JLS, Valois RBV, Pinheiro JC, Ribeiro MAG, Lima SO, Albuquerque-Júnior RLCD. Improvement of bone repair in diabetic rats subjected to ƛ780 nm low-level laser therapy. Acta Cir Bras 2015; 30:660-7. [DOI: 10.1590/s0102-865020150100000002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/15/2015] [Indexed: 11/22/2022] Open
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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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Tschon M, Incerti-Parenti S, Cepollaro S, Checchi L, Fini M. Photobiomodulation with low-level diode laser promotes osteoblast migration in an in vitro micro wound model. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:78002. [PMID: 26140461 DOI: 10.1117/1.jbo.20.7.078002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/03/2015] [Indexed: 05/15/2023]
Abstract
Laser photobiomodulation can improve bone healing, but well-defined treatment parameters are lacking. Saos-2 human osteoblast-like cells were subjected to an in vitro scratch-wound healing assay and irradiated by a 915-nm gallium-aluminum-arsenide diode laser for 0, 48, 96, and 144 s using doses of, respectively, 0, 5, 10, and 15 J/cm(2) . Wound area was measured after 4, 24, 48, and 72 h. Cell viability, DNA content, gene expression, and release of bone-related proteins were evaluated after 24, 48, and 72 h. Laser significantly improved wound healing compared with nonirradiated controls. Cells treated with laser doses of 5 and 10 J/cm(2) reached wound closure after 72 h, followed by 15 J/cm(2) after 96 h. With the cell proliferation inhibitor Mitomycin C, the doses of 10 and 15 J/cm(2) maintained an improved wound healing compared with controls. Laser increased collagen type 1 gene expression with higher doses inducing a longer-lasting effect, whereas transforming growth factor-beta 1 showed comparable or decreased levels in irradiated versus nonirradiated groups, with no effect on protein release. This study demonstrated that laser photobiomodulation at 915 nm promoted wound healing mainly through stimulation of cell migration and collagen deposition by osteoblasts.
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Affiliation(s)
- Matilde Tschon
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, Italy
| | - Serena Incerti-Parenti
- University of Bologna, Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences, via San Vitale 59, Bologna 40125, Italy
| | - Simona Cepollaro
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, ItalycUniversity of Bologna, Department of Medical and Surgical Sciences, via Massarenti 9, Bologna 40138, Italy
| | - Luigi Checchi
- University of Bologna, Unit of Periodontology, Department of Biomedical and Neuromotor Sciences, via San Vitale 59, Bologna 40125, Italy
| | - Milena Fini
- Rizzoli Orthopaedic Institute, Laboratory of Preclinical and Surgical Studies, via di Barbiano 1/10, Bologna 40136, Italy
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Scalize PH, de Sousa LG, Regalo SCH, Semprini M, Pitol DL, da Silva GA, de Almeida Coelho J, Coppi AA, Laad AABL, Prado KFB, Siessere S. Low-level laser therapy improves bone formation: stereology findings for osteoporosis in rat model. Lasers Med Sci 2015; 30:1599-607. [PMID: 26037661 DOI: 10.1007/s10103-015-1773-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/24/2015] [Indexed: 11/26/2022]
Abstract
Low-level laser therapy (LLLT) benefits bone metabolism, but its use needs to be standardized. We evaluated the effects of LLLT on bone defects in calvaria of ovariectomized rats. Stereology was used to calculate tissue repair volume (V tr ), density of trabecular bone volume (Vv t ), total volume of newly formed trabecular bone (Vtot), and the area occupied by collagen fibers (A C ). Fifty-four Wistar rats were submitted to bilateral ovariectomy, and bone defects were created in calvaria after 150 days. The animals were divided into nine groups (n = 6), and 24 h after defects, the treatment started with a 780-nm low-intensity GaAlAs laser: G1, G2, and G3 received 3 sessions of 0, 20, and 30 J/cm(2) respectively; G4, G5, and G6 received 6 sessions of 0, 20, and 30 J/cm(2), respectively; and G7, G8, and G9 received 12 sessions of 0, 20, and 30 J/cm(2), respectively. A normal distribution was found for all of the data. The test used to verify the normality was the Kolmogorov-Smirnov (KS, p > 0.05). The one-way ANOVA followed by Tukey's post hoc test was used for data processing. A difference of p < 0.05 was considered statistically significant. Groups G2 and G1 showed significance for V tr , Vv t , Vtot, and (A C ). Results were significant for (Vv t ) and (Vtot) between G3 and G1. There were no significant results between G5 and G4 as well as between G8 and G7. Groups G6 and G4 results showed statistical difference for V tr , Vv t , Vtot, and (A C ). Groups G9 and G7 showed significance for V tr , Vv t , Vtot, and (A C ). In conclusion, there was new bone formation in the groups that received 20 and 30 J/cm(2) when compared to control groups, but over time, the dose of 30 J/cm(2) showed better stereological parameters when compared to 20 J/cm(2).
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Affiliation(s)
- Priscilla Hakime Scalize
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, USP-University of São Paulo, Ribeirão Preto, SP, Brazil
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