1
|
Demirok SO, Eroglu CN, Koc A. Comprehensive analysis of bone tissue in extraction sockets of third molars after leukocyte and platelet rich fibrin and photobiomodulation applications. Clin Oral Investig 2024; 28:483. [PMID: 39136788 PMCID: PMC11322263 DOI: 10.1007/s00784-024-05872-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 08/05/2024] [Indexed: 08/16/2024]
Abstract
OBJECTIVES The aim of this study was to compare leukocyte and platelet-rich fibrin (L-PRF) and photobiomodulation (PBM) applications, which have been repeatedly reported to be superior to control groups, in terms of pain, soft tissue and bone healing in tooth extraction sockets. MATERIALS AND METHODS This double-blind, randomized clinical study was completed with 34 patients, who had an indication for extraction of their bilaterally impacted teeth. The right and left teeth of the patients were randomly divided into L-PRF and PBM groups. L-PRF group was treated with the blood product centrifuged for 12 min at 2700 rpm, and the PBM group was treated with a diode laser at different points for 60 s with a wavelength of 940 nm in repeated sessions. Postoperative pain was evaluated using Visual Analogue Scale (VAS), soft tissue healing with Landry Index (LI), tissue healing in the distal region of mandibular second molar by probing depth measurement, and bone healing via panoramic x-ray using the Image J program. RESULTS No statistically significant difference was found for any variable compared between the groups. CONCLUSION L-PRF and PBM applications provide similar support in the healing of extraction sockets. Nevertheless, the advantages and disadvantages of both methods determine their usage areas. CLINICAL RELEVANCE While L-PRF is advantageous in the early healing of extraction sockets, PBM may be preferred in terms of bone trabeculation in the long term.
Collapse
Affiliation(s)
- Sevgi Ozan Demirok
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Cennet Neslihan Eroglu
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Yuzuncu Yil University, Van, Turkey.
| | - Alaettin Koc
- Akdeniz Universitesi, Dis Hekimligi Fakultesi, Dumlupinar Bulvari, 07058, Turkey
| |
Collapse
|
2
|
Sayar F, Garebigloo A, Saberi S, Etemadi A. In Vitro Photobiomodulation Effects of Blue and Red Diode Lasers on Proliferation and Differentiation of Periodontal Ligament Mesenchymal Stem Cells. J Lasers Med Sci 2024; 15:e5. [PMID: 38655041 PMCID: PMC11033857 DOI: 10.34172/jlms.2024.05] [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: 06/12/2023] [Accepted: 01/29/2024] [Indexed: 04/26/2024]
Abstract
Introduction: This study aimed to assess the photobiomodulation effects of blue and red lasers on the proliferation and osteogenic differentiation of periodontal ligament mesenchymal stem cells (PDLMSCs). Methods: PDLMSCs were cultured and tested in 4 groups. The first two groups were exposed to 445 nm diode laser irradiation (200 mW, 6 and 12 J/cm2 ), and the third group was exposed to 660 nm diode laser irradiation (50 mW, 4 J/cm2 ). The fourth group was also considered as the control group without irradiation. Cell viability/proliferation was assessed by MTT assay. RUNX2, alkaline phosphatase (ALP), collagen type 1 (col1), and osteocalcin (OCN) were evaluated by RT-PCR, and Alizarin red was used to evaluate the colonization. The data were analyzed by means of one-way analysis of variance. Results: The results of our study showed that cell survival/proliferation in the second group was significantly lower than that in the control group on days 1 and 7 (P<0.05). RT-PCR showed a significant increase in osteogenic genes in all three laser groups compared to the control group (P<0.05). All groups showed a significant increase in calcium content compared to the control group (P<0.05). ALP activity also confirmed the osteoblastic differentiation of cells in laser groups. Conclusion: 445 nm and 660 nm lasers with the studied parameters showed positive effects on the proliferation and osteoblastic differentiation of PDLMSCs.
Collapse
Affiliation(s)
- Ferena Sayar
- Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Sogol Saberi
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ardavan Etemadi
- Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| |
Collapse
|
3
|
Karkehabadi H, Rahmati A, Abbaspourrokni H, Farmany A, Najafi R, Behroozi R, Rezaei-Soufi L, Abbasi R. Effect of magnesium oxide nanoparticles and LED irradiation on the viability and differentiation of human stem cells of the apical papilla. Biotechnol Lett 2024; 46:263-278. [PMID: 38326543 DOI: 10.1007/s10529-024-03471-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 12/15/2023] [Accepted: 01/26/2024] [Indexed: 02/09/2024]
Abstract
PURPOSE Currently, regenerative endodontic treatments are gaining more and more attention, and stem cells play a significant role in these treatments. In order to enhance stem cell proliferation and differentiation, a variety of methods and materials have been used. The purpose of this study was to determine the effects of magnesium oxide nanoparticles and LED irradiation on the survival and differentiation of human stem cells from apical papilla. METHODS The MTT test was used to measure the cell survival of SCAPs that had been exposed to different concentrations of magnesium oxide nanoparticles after 24 and 48 h, and the concentration with the highest cell survival rate was picked for further studies. The cells were classified into four distinct groups based on their treatment: (1) control, which received no exposure, (2) exposure to magnesium oxide nanoparticles, (3) exposure to light emitting diode (LED) irradiation (635 nm, 200 mW/cm2) for 30 s, (4) exposure simultaneously with magnesium oxide nanoparticles and LED irradiation. A green approach was employed to synthesize magnesium oxide nanoparticles. Quantitative real time PCR was used to measure the gene expression of osteo/odontogenic markers such as BSP, DSPP, ALP and DMP1 in all four groups after treatment, and Alizarin red S staining (ARS) was used to determine the osteogenic differentiation of SCAPs by demonstrating the Matrix mineralization. RESULTS The highest viability of SCAPs was observed after 24 h in concentration 1 and 10 µg/mL and after 48 h in concentration 1 µg/mL, which were not significantly different from the control group. In both times, the survival of SCAPs decreased with increasing concentration of magnesium oxide nanoparticles (MgONPs). According to the results of Real-time PCR, after 24 and 48 h, the highest differentiation of BSP, DMP1, ALP and DSPP genes was observed in the LED + MgONPs group, followed by MgONPs and then LED, and in all 3 experimental groups, it was significantly higher than control group (P < 0.05). Also, after 24 and 48 h, the density of ARS increased in all groups compared to the control group, and the highest density was observed in the MgONPs + LED and MgONPs groups. CONCLUSION This research concluded that exposure to SCAPs, MgONPs, and LED irradiation has a significant effect on enhancing gene expression of odontogenic/osteogenic markers and increasing matrix mineralization.
Collapse
Affiliation(s)
- Hamed Karkehabadi
- Department of Endodontics, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Afsaneh Rahmati
- Department of Endodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hadiseh Abbaspourrokni
- Department of Endodontics, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abbas Farmany
- Dental Research Center, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rezvan Najafi
- Department of Medical Molecular and Genetics, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Loghman Rezaei-Soufi
- Department of Operative Dentistry, Dental Research Center, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Roshanak Abbasi
- Department of Endodontics, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
- Department of Endodontics, School of Dentistry, Lorestan University of Medical Sciences, Khorramabad, Iran.
| |
Collapse
|
4
|
Kawano M, Wada K, Hemmi Y, Yokose S. Effect of Nd:YAG laser on bone formation in rat tibia defects: three-dimensional micro-computed tomography image analysis. Lasers Med Sci 2023; 38:158. [PMID: 37421518 DOI: 10.1007/s10103-023-03820-3] [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: 11/08/2022] [Accepted: 06/23/2023] [Indexed: 07/10/2023]
Abstract
Nd:YAG laser is in common clinical use for the treatment of tissue incision, transpiration, and haemostasis in soft tissues. However, few studies have reported the effects of low-level laser therapy (LLLT) from Nd:YAG laser on bone healing. The aim of this study was to perform three-dimensional (3D) morphological evaluation of the photobiomodulation of Nd:YAG laser in bone defects in rat tibiae using micro-computed tomography CT (micro-CT) imaging. A bone defect was created in each tibia of 30 rats. The right side was treated with LLLT from Nd:YAG laser (LT group) daily until sacrifice and the left tibiae served as controls (control group). All tibiae underwent micro-CT imaging at 7, 14, and 21 days after the operation. Three-dimensional image analysis of bone volume (BV) and bone surface area (BS) of new bone formation in the defects was performed and histologic analysis was conducted for all tibiae. Tibial BV and BS values were highest in both groups at 7 days after the operation and decreased at 14 days after operation. BV and BS values were both significantly higher in the LT group than in the control group at 7 and 14 days. There was no significant difference between the groups for either metric at 21 days. The present findings demonstrate that Nd:YAG laser simulates bone formation during the early healing period.
Collapse
Affiliation(s)
- Munemitsu Kawano
- Division of Endodontics and Operative Dentistry, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama, 350-0283, Japan
| | - Kei Wada
- Division of Endodontics and Operative Dentistry, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama, 350-0283, Japan.
| | - Yuichi Hemmi
- Division of Endodontics and Operative Dentistry, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama, 350-0283, Japan
| | - Satoshi Yokose
- Division of Endodontics and Operative Dentistry, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama, 350-0283, Japan
| |
Collapse
|
5
|
Madadi S, Hasasnpour S, Zendehdel M, Vazir B, Jahandideh A. Role of central Adiponectin and its interactions with NPY and GABAergic systems on food intake in neonatal layer chicken. Neurosci Lett 2023; 808:137283. [PMID: 37142113 DOI: 10.1016/j.neulet.2023.137283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 04/29/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND & AIM Adiponectin is a member of the adipokine family and contributes to regulating energy homeostasis, reproduction, and various biological functions, such as insulin receptor signaling pathway sensitivity, mitochondrial biogenesis, oxidative metabolism, neurogenesis, and suppression of inflammation. This study aimed to investigate the effects of intracerebroventricular (ICV) injection of adiponectin and its interaction with the neuropeptide Y (NPY) and GABAergic systems on central appetite regulation in neonatal layer-type chickens. MATERIALS & METHODS In this study, 6 experiments were conducted, each of which included 4 experimental groups. In the first experiment, the chickens were injected with saline and adiponectin (20.73, 41.45, and 62.18 nmol). In the second experiment, saline, adiponectin (62.18 nmol), B5063 (NPY1 receptor antagonist, 2.12 nmol), and simultaneous injections of adiponectin and B5063 were performed. Experiments 3 to 6 were done in the same way to experiment 1, but the chickens were injected with SF22 (NPY2 receptor antagonist, 2.66 nmol), SML0891 (NPY5 receptor antagonist, 2.89 nmol), picrotoxin (GABAA receptor antagonist, 0.89 nmol), CGP54626 (GABAB receptor antagonist, 0.047 nmol) instead of B5063. Feed consumption was measured 120 min after the injection. RESULTS A dose-dependent increase in appetite was observed after the injection of adiponectin (20.73, 41.45, and 62.18 nmol) (P<0.05). The injection of B5063 + adiponectin attenuated the hyperphagic effect of adiponectin (P< 0.05). In addition, co-injection of picrotoxin and adiponectin significantly decreased adiponectin-induced hyperphagia (P<0.05). In addition, adiponectin significantly increased the number of steps, jumps, exploratory food, pecks, and standing time, while decreasing sitting time and rest time (P<0.05). CONCLUSION These results suggest that the hyperphagic effects of adiponectin are probably mediated through NPY1 and GABAA receptors in neonatal layer-type chickens.
Collapse
Affiliation(s)
- Sedigheh Madadi
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahin Hasasnpour
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Morteza Zendehdel
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, 14155-6453, Tehran, Iran
| | - Bita Vazir
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alireza Jahandideh
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
6
|
Varela PJR, Barros PAG, Montagner PG, Provout MB, Martinez EF, Suzuki SS, Garcez AS. Can Collagen Membrane on Bone Graft Interfere with Light Transmission and Influence Tissue Neoformation During Photobiomodulation? A Preliminary Study. Photobiomodul Photomed Laser Surg 2023; 41:167-174. [PMID: 37074308 DOI: 10.1089/photob.2022.0070] [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: 04/20/2023] Open
Abstract
Objective: This study qualitatively and quantitatively evaluated the transmission of light through a collagen membrane and the consequent local bone formation in a critical bone defect in vitro and in an animal model. Background: Currently, bone substitutes and collagen membranes are used to promote new bone formation; however, when associated with photobiomodulation, biomaterials can act as a barrier, hindering the passage of light radiation to the area to be treated. Methods: Light transmittance was evaluated in vitro with a power meter and a 100 mW, 808 nm laser source with and without membrane. Twenty-four male rats received a critical surgical defect of 5 mm in diameter in the calvarial bone, subsequently a biomaterial (Bio-Oss; Geistlich®, Switzerland) was applied, and the animals were divided into the following three groups: G1-collagen membrane and no irradiation; G2-collagen membrane and photobiomodulation (irradiation with 4 J of 808 nm); and G3-photobiomodulation (4 J) followed by a collagen membrane. Histomophometric analyses were performed at 7 and 14 days after euthanasia. Results: The membrane reduced the light transmittance (808 nm) by an average of 78%. Histomophometric analyses showed significant differences in new blood vessels on day 7 and bone neoformation on day 14. Irradiation without membrane interposition resulted in a 15% more neoformed bone compared with the control (G1), and 6.5% more bone compared with irradiation over the membrane (G2). Conclusions: The collagen membrane interferes with light penetration during photobiomodulation, decreases light dosimetry on the wound area, and interferes with bone neoformation.
Collapse
|
7
|
Pomini KT, Buchaim DV, Bighetti ACC, Andreo JC, Rosso MPDO, Escudero JSB, Della Coletta BB, Alcalde MP, Duarte MAH, Pitol DL, Issa JPM, Ervolino E, Moscatel MBM, Bellini MZ, de Souza AT, Soares WC, Buchaim RL. Use of Photobiomodulation Combined with Fibrin Sealant and Bone Substitute Improving the Bone Repair of Critical Defects. Polymers (Basel) 2022; 14:polym14194170. [PMID: 36236116 PMCID: PMC9572221 DOI: 10.3390/polym14194170] [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: 08/29/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
In this preclinical protocol, an adjunct method is used in an attempt to overcome the limitations of conventional therapeutic approaches applied to bone repair of large bone defects filled with scaffolds. Thus, we evaluate the effects of photobiomodulation therapy (PBMT) on the bone repair process on defects filled with demineralized bovine bone (B) and fibrin sealant (T). The groups were BC (blood clot), BT (B + T), BCP (BC + PBMT), and BTP (B + T + PBMT). Microtomographically, BC and BCP presented a hypodense cavity with hyperdense regions adjacent to the border of the wound, with a slight increase at 42 days. BT and BTP presented discrete hyperdensing areas at the border and around the B particles. Quantitatively, BCP and BTP (16.96 ± 4.38; 17.37 ± 4.38) showed higher mean bone density volume in relation to BC and BT (14.42 ± 3.66; 13.44 ± 3.88). Histologically, BC and BCP presented deposition of immature bone at the periphery and at 42 days new bone tissue became lamellar with organized total collagen fibers. BT and BTP showed inflammatory infiltrate along the particles, but at 42 days, it was resolved, mainly in BTP. In the birefringence analysis, BT and BTP, the percentage of red birefringence increased (9.14% to 20.98% and 7.21% to 27.57%, respectively), but green birefringence was similar in relation to 14 days (3.3% to 3.5% and 3.5% to 4.2%, respectively). The number of osteocytes in the neoformed bone matrix proportionally reduced in all evaluated groups. Immunostaining of bone morphogenetic protein (BMP—2/4), osteocalcin (OCN), and vascular endothelial growth factor (VEGF) were higher in BCP and BTP when compared to the BC and BT groups (p < 0.05). An increased number of TRAP positive cells (tartrate resistant acid phosphatase) was observed in BT and BTP. We conclude that PBMT positively influenced the repair of bone defects filled with B and T.
Collapse
Affiliation(s)
- Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Teaching and Research Coordination of the Medical School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Ana Carolina Cestari Bighetti
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Jesus Carlos Andreo
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | | | - José Stalin Bayas Escudero
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Bruna Botteon Della Coletta
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Murilo Priori Alcalde
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, Brazil
| | - Dimitrius Leonardo Pitol
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Ribeirão Preto 14040-904, Brazil
| | - João Paulo Mardegan Issa
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Ribeirão Preto 14040-904, Brazil
| | - Edilson Ervolino
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16066-840, Brazil
| | | | - Márcia Zilioli Bellini
- Pro-Rectory of Research and Graduate Studies, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | | | - Wendel Cleber Soares
- Vice-Rector/President, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), São Paulo 05508-270, Brazil
- Correspondence: ; Tel.: +55-14-3235-8220
| |
Collapse
|
8
|
Khwanda MA, Burhan AS, Hajeer MY, Ajaj MA, Parker S, Nawaya FR, Hamadah O. Three-Dimensional Assessment of the Temporomandibular Joint Changes Following Reversed Twin Block Therapy of Patients With Skeletal Class III Malocclusion in Conjunction With the Photobiomodulation Therapy: A Randomized Controlled Clinical Trial. Cureus 2022; 14:e25897. [PMID: 35720777 PMCID: PMC9198290 DOI: 10.7759/cureus.25897] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2022] [Indexed: 12/02/2022] Open
Abstract
Background: Despite the positive effect of the photobiomodulation therapy (PBMT) application on animals, the primary role of this technique on the human condyle is still unclear. Several experimental reports have shown the efficacy of PBMT in inducing cellular changes in the temporomandibular joint (TMJ) region during functional treatment of patients with skeletal deformities. Still, the lack of information about its effects on human condyles requires further studies. Objectives: This study aimed to evaluate the effect of PBMT on the TMJ components following Class III treatment with the reversed twin block (RTB) appliance in growing patients. Materials and Method: Forty children (12 females, 28 males) between the age of nine and eleven years with skeletal Class III were assigned randomly to the RTB group with photobiomodulation (RTB+PBMT) or the control group (RTB). The PBMT was applied to the TMJ region using an 808-nm wavelength Ga-Al-As semiconductor laser device with 5 Joules/cm2 energydensity on days 1, 3, 7, and 14 of the first month. Afterwards, the irradiation was conducted every 15 days until the end of the treatment. Cone-beam computerized tomography (CBCT) images were taken before (T1) treatment and following the end of treatment (T2) to assess TMJ and skeletal changes. Results: Condylar volume was significantly increased in the RTB group only by a mean of 287.97 mm3 (p<0.001). The significantly backward and upward condylar movement was observed in the RTB and RTB+PBMT groups (superior joint space (SJS): 0.26 mm, 0.15 mm; posterior joint space (PJS): 0.42mm, 0.11mm, respectively). The RTB group showed the most remarkable changes. Significant improvement of the sagittal maxilla-mandibular relationship was greater in the RTB+PBMT group compared to the RTB group (p=0.02). Conclusion: There were no considerable differences in the condylar position after Class III treatment between the RTB and the RTB+PBMT groups. But a difference in the condylar volume was noticed between the two group.
Collapse
|
9
|
In vivo efficacy of low-level laser therapy on bone regeneration. Lasers Med Sci 2022; 37:2209-2216. [PMID: 35022870 DOI: 10.1007/s10103-021-03487-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE In clinical use of low-level laser therapy for bone regeneration (LLLT), application protocol (dose, duration, and repetitions) has not been established. This study aimed to depict a reliable dosage of LLLT by evaluating the efficacy of different dosing of LLLT (diode) on the healing of rabbit cranial defects. METHODS Critical size defects were prepared in calvarias of 26 New Zealand White Rabbits in such each animal containing both test and control groups. Test groups were irradiated with 4 Joule/cm2 (j/cm2), 6 j/cm2, and 8 j/cm2. The rabbits were subjected to six times of laser treatments in 10 days. At the end of the second week, 5 rabbits were sacrificed for histopathological and immunohistochemical analyses. At the 4th and 8th weeks, 20 rabbits (10 each) were sacrificed for micro-CT and histopathological analyses. RESULTS Micro-CT evaluation revealed improved new bone formation in all test groups compared to the control group. 6 j/cm2 group demonstrated the highest bone formation. The highest bone morphogenic protein -2 levels were found in the 4 j/cm2 group. Osteocalcin expression was significantly higher in 4 j/cm2 group. CONCLUSIONS Our findings indicate that LLLT have a positive effect on new bone formation. The high efficacy of doses of 4 j/cm2 and 6 j/cm2 is promising to promote early bone healing.
Collapse
|
10
|
Chen Y, Zhou Y, Lin J, Zhang S. Challenges to Improve Bone Healing Under Diabetic Conditions. Front Endocrinol (Lausanne) 2022; 13:861878. [PMID: 35418946 PMCID: PMC8996179 DOI: 10.3389/fendo.2022.861878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/02/2022] [Indexed: 12/17/2022] Open
Abstract
Diabetes mellitus (DM) can affect bone metabolism and the bone microenvironment, resulting in impaired bone healing. The mechanisms include oxidative stress, inflammation, the production of advanced glycation end products (AGEs), etc. Improving bone healing in diabetic patients has important clinical significance in promoting fracture healing and improving bone integration. In this paper, we reviewed the methods of improving bone healing under diabetic conditions, including drug therapy, biochemical cues, hyperbaric oxygen, ultrasound, laser and pulsed electromagnetic fields, although most studies are in preclinical stages. Meanwhile, we also pointed out some shortcomings and challenges, hoping to provide a potential therapeutic strategy for accelerating bone healing in patients with diabetes.
Collapse
Affiliation(s)
- Yiling Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yue Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Lin
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Jie Lin, ; Shiwen Zhang,
| | - Shiwen Zhang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Jie Lin, ; Shiwen Zhang,
| |
Collapse
|
11
|
Zayed S, Noureldin M. Rehabilitation of atrophic mandible with ultrashort implants combined with photobiomodulation therapy: A split-mouth design study. SAUDI JOURNAL OF MEDICINE AND MEDICAL SCIENCES 2022; 10:198-206. [PMID: 36247059 PMCID: PMC9555047 DOI: 10.4103/sjmms.sjmms_635_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/07/2022] [Accepted: 06/16/2022] [Indexed: 12/03/2022] Open
Abstract
Background: Atrophic edentulous mandible is a challenging clinical condition. Studies assessing the use of ultrashort implants to support overdentures are scarce; the optimum photobiomodulation (PBM) dose for enhancing osseointegration is yet unknown. Objective: This study aimed to evaluate and compare mandibular overdentures assisted by two versus four ultrashort implants with adjunctive PBM therapy using two doses. Materials and Methods: A total of 36 implants were placed in 12 edentulous male participants and they were randomly allocated to Group I (mandibular overdentures assisted by two ultrashort implants) or Group II (by four ultrashort implants). Fully guided implant placement was performed, and then a split-mouth design was implemented. The participants received PBM by diode laser (660 nm). Dose A (3.75 J/cm2) and Dose B (7.5 J/cm2) were applied to the right and left implant (s), respectively. Implant stability, peri-implant probing depth (PIPD), and modified gingival index (MGI) were evaluated at baseline, and at 6 and 12 months after loading. Results: After 12 months, the implant stability values were significantly higher in Group II compared with Group I (P < 0.001). A significant difference was observed in between the PIPDs of both groups (Group I: 2.35 ± 0.54 mm; Group II: 1.69 ± 0.35 mm;P= 0.001). The mean MGI values were low for both groups (Group I: 0.75 ± 0.58; Group II: 0.51 ± 0.41). Conclusions: Mandibular overdentures supported by four ultrashort implants had a more favorable clinical outcome, while PBM doses A and B were comparable in all evaluated parameters. Trial Registration: ClinicalTrials.gov Identifier: NCT03540316.
Collapse
|
12
|
Abdelatief EEM, Fathy KA. Effect of class IV laser therapy and Pilates exercises on bone density and pain in primary osteoporosis: a randomised controlled trial. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2021. [DOI: 10.12968/ijtr.2021.0053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background/aims Osteoporosis is a systemic disorder characterised by a decrease in bone quality and density. This causes the bones to become weak and unable to withstand mild stresses, and the associated pain is made worse with activities. The aim of this study was to investigate the effect of class IV laser therapy and Pilates exercises on bone mineral density and pain in patients with primary osteoporosis. Methods A total of 60 patients with osteoporosis (40 women and 20 men) participated in this study. Their age ranged between 40 and 60 years. They were allocated randomly to three groups: Group A (n=20) received multiwave locked system laser therapy, group B (n=20) patients received Pilates exercises and group C (n=20) received multiwave locked system laser therapy and Pilates exercises. The treatment programme took place three times a week for 8 weeks. Bone mineral density of the lumbar spine (L1–L4) was measured by dual-energy X-ray absorptiometry and pain intensity during activities was measured by using the Numeric Pain Rating Scale. Evaluation of lumbar bone mineral density and pain intensity were performed before and after 8 weeks. Results The statistical analysis of this study revealed there was a significant increase of T-scores post-treatment compared to pre-treatment within group A (P=0.0001; P<0.05), group B (P=0.0001; P<0.05), and group C (P=0.0001), with improvement percentages of 19.59, 34.69 and 50.66% respectively. There was a decrease of pain intensity during activities post-treatment compared to pre-treatment within group A (P=0.0001; P<0.05), group B (P=0.0001; P<0.05) and group C (P=0.0001), with improvement percentages of 41.28, 54.39 and 70.09% respectively. Conclusions Class IV laser therapy and Pilates exercises are useful therapeutic modalities to increase bone mineral density and decrease pain in patients with osteoporosis, but combining them is more effective than using them separately.
Collapse
Affiliation(s)
| | - Karim Ahmed Fathy
- Department of Physical Therapy for Cardiovascular/Respiratory Disorder and Geriatrics, October 6 University, Cairo, Egypt
| |
Collapse
|
13
|
Eroglu B, Genova E, Zhang Q, Su Y, Shi X, Isales C, Eroglu A. Photobiomodulation has rejuvenating effects on aged bone marrow mesenchymal stem cells. Sci Rep 2021; 11:13067. [PMID: 34158600 PMCID: PMC8219765 DOI: 10.1038/s41598-021-92584-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 06/08/2021] [Indexed: 01/06/2023] Open
Abstract
The plasticity and proliferative capacity of stem cells decrease with aging, compromising their tissue regenerative potential and therapeutic applications. This decline is directly linked to mitochondrial dysfunction. Here, we present an effective strategy to reverse aging of mouse bone marrow mesenchymal stem cells (BM-MSCs) by restoring their mitochondrial functionality using photobiomodulation (PBM) therapy. Following the characterization of young and aged MSCs, our results show that a near-infrared PBM treatment delivering 3 J/cm2 is the most effective modality for improving mitochondrial functionality and aging markers. Furthermore, our results unveil that young and aged MSCs respond differently to the same modality of PBM: whereas the beneficial effect of a single PBM treatment dissipates within 7 h in aged stem cells, it is lasting in young ones. Nevertheless, by applying three consecutive treatments at 24-h intervals, we were able to obtain a lasting rejuvenating effect on aged MSCs. Our findings are of particular significance for improving autologous stem cell transplantation in older individuals who need such therapies most.
Collapse
Affiliation(s)
- Binnur Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
| | - Evan Genova
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
| | - Quanguang Zhang
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
| | - Yun Su
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
| | - Xingming Shi
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
| | - Carlos Isales
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Ali Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, CA-2004, Augusta, GA, 30912, USA.
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
| |
Collapse
|
14
|
Low-level laser therapy (LLLT) improves alveolar bone healing in rats. Lasers Med Sci 2021; 37:961-969. [PMID: 34002343 DOI: 10.1007/s10103-021-03340-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 05/09/2021] [Indexed: 10/21/2022]
Abstract
The main objective of the present study was to evaluate the effect of low-level laser therapy (LLLT) in enhancing bone healing in irradiated alveolus post-tooth extraction. Sixty male Wistar rats (180 ± 10 g) were used in the present study. The left maxillary first molars were extracted, and the alveolar region was irradiated by diode laser device (GaAlAs) immediately after extraction and for more 3-day daily applications. The animals were randomly assigned into two groups: control group (n = 30, with left maxillary molar extraction-CG) and experimental group (n = 30, with tooth extraction and low-level laser therapy applied to the dental alveolus for 42 s-EG). These groups were divided into subgroups (five rats per subgroup) according to the observation time point-1, 2, 3, 5, 7, and 10 days-post-tooth extraction. The maxillary bone was separated, and the specimens were stained with hematoxylin and eosin, Masson's trichrome, and picrosirius red and immunohistochemistry for RUNX-2. Parametric and nonparametric tests were used with a significance level of 5%. LLLT accelerated bone healing with mature collagen fiber bundles and early new bone formation. Histomorphometric analysis revealed an increase of osteoblast (RUNX-2) and osteoclast (TRAP) activity and in the area percentage of cancellous bone in the lased alveolus compared to the control group. This increase was statistically significant (p < 0.05). Application of LLLT with a GaAlAs diode laser device enhanced bone healing and mineralization on alveolar region.
Collapse
|
15
|
Saebø H, Naterstad IF, Bjordal JM, Stausholm MB, Joensen J. Treatment of Distal Radius Fracture During Immobilization with an Orthopedic Cast: A Double-Blinded Randomized Controlled Trial of Photobiomodulation Therapy. Photobiomodul Photomed Laser Surg 2021; 39:280-288. [DOI: 10.1089/photob.2020.4964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Humaira Saebø
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Bergen Accident Emergency Hospital (A&E), Bergen, Norway
- Haukeland University Hospital, Bergen, Norway
| | | | - Jan Magnus Bjordal
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Martin Bjørn Stausholm
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Jon Joensen
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| |
Collapse
|
16
|
Hatefi S, Alizargar J, Le Roux F, Hatefi K, Etemadi Sh M, Davids H, Hsieh NC, Smith F, Abou-El-Hossein K. Review of physical stimulation techniques for assisting distraction osteogenesis in maxillofacial reconstruction applications. Med Eng Phys 2021; 91:28-38. [PMID: 34074463 DOI: 10.1016/j.medengphy.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 02/17/2021] [Accepted: 03/24/2021] [Indexed: 01/24/2023]
Abstract
Distraction Osteogenesis (DO) is an emerging limb lengthening method for the reconstruction of the hard tissue and the surrounding soft tissue, in different human body zones. DO plays an important role in treating bone defects in Maxillofacial Reconstruction Applications (MRA) due to reduced side effects and better formed bone tissue compared to conventional reconstruction methods i.e. autologous bone graft, and alloplast implantation. Recently, varying techniques have been evaluated to enhance the characteristics of the newly formed tissues and process parameters. Promising results have been shown in assisting DO treatments while benefiting bone formation mechanisms by using physical stimulation techniques, including photonic, electromagnetic, electrical, and mechanical stimulation technique. Using assisted DO techniques has provided superior results in the outcome of the DO procedure compared to a standard DO procedure. However, DO methods, as well as assisting technologies applied during the DO procedure, are still emerging. Studies and experiments on developed solutions related to this field have been limited to animal and clinical trials. In this review paper, recent advances in physical stimulation techniques and their effects on the outcome of the DO treatment in MRA are surveyed. By studying the effects of using assisting techniques during the DO treatment, enabling an ideal assisted DO technique in MRA can be possible. Although mentioned techniques have shown constructive effects during the DO procedure, there is still a need for more research and investigation to be done to fully understand the effects of assisting techniques and advanced technologies for use in an ultimate DO procedure in MRA.
Collapse
Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran.
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Nan-Chen Hsieh
- Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Farouk Smith
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| |
Collapse
|
17
|
Imafuji T, Shirakata Y, Shinohara Y, Nakamura T, Noguchi K. Enhanced bone formation of calvarial bone defects by low-intensity pulsed ultrasound and recombinant human bone morphogenetic protein-9: a preliminary experimental study in rats. Clin Oral Investig 2021; 25:5917-5927. [PMID: 33755786 DOI: 10.1007/s00784-021-03897-6] [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] [Received: 11/23/2020] [Accepted: 03/18/2021] [Indexed: 01/24/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the combined effects of recombinant human bone morphogenetic protein - 9 (rhBMP-9) loaded onto absorbable collagen sponges (ACS) and low-intensity pulsed ultrasound (LIPUS) on bone formation in rat calvarial defects. MATERIALS AND METHODS Circular calvarial defects were surgically created in 18 Wistar rats, which were divided into LIPUS-applied (+) and LIPUS-non-applied (-) groups. The 36 defects in each group received ACS implantation (ACS group), ACS with rhBMP-9 (rhBMP-9/ACS group), or surgical control (control group), yielding the following six groups: ACS (+/-), rhBMP-9/ACS (+/-), and control (+/-). The LIPUS-applied groups received daily LIPUS exposure starting immediately after surgery. At 4 weeks, animals were sacrificed and their defects were investigated histologically and by microcomputed tomography. RESULTS Postoperative clinical healing was uneventful at all sites. More new bone was observed in the LIPUS-applied groups compared with the LIPUS-non-applied groups. Newly formed bone area (NBA)/total defect area (TA) in the ACS (+) group (46.49 ± 7.56%) was significantly greater than that observed in the ACS (-) (34.31 ± 5.68%) and control (-) (31.13 ± 6.74%) groups (p < 0.05). The rhBMP-9/ACS (+) group exhibited significantly greater bone volume, NBA, and NBA/TA than the rhBMP-9/ACS (-) group (2.46 ± 0.65 mm3 vs. 1.76 ± 0.44 mm3, 1.25 ± 0.31 mm2 vs. 0.88 ± 0.22 mm2, and 62.80 ± 11.87% vs. 42.66 ± 7.03%, respectively) (p < 0.05). Furthermore, the rhBMP-9/ ACS (+) group showed the highest level of bone formation among all groups. CONCLUSION Within their limits, it can be concluded that LIPUS had osteopromotive potential and enhanced rhBMP-9-induced bone formation in calvarial defects of rats. CLINICAL RELEVANCE The use of rhBMP-9 with LIPUS stimulation can be a potential bone regenerative therapy for craniofacial/peri-implant bone defects.
Collapse
Affiliation(s)
- Takatomo Imafuji
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Yoshinori Shirakata
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
| | - Yukiya Shinohara
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Toshiaki Nakamura
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Kazuyuki Noguchi
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| |
Collapse
|
18
|
Marya A, Venugopal A. The Use of Technology in the Management of Orthodontic Treatment-Related Pain. Pain Res Manag 2021; 2021:5512031. [PMID: 33763158 PMCID: PMC7964123 DOI: 10.1155/2021/5512031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/10/2021] [Accepted: 03/02/2021] [Indexed: 11/17/2022]
Abstract
Orthodontic pain is one of the negatives associated with fixed orthodontic treatment that cannot be avoided. This pain usually comes around the wire placement period and gradually decreases once the endogenous analgesic mechanisms start functioning. Over the years, several treatment modalities have been utilized for relief from orthodontic pain, and these include mechanical, behavior modification, and pharmacological methods. However, in the last decade, there are several newer methods employing the use of technology that have come up and are being used for alleviating pain. From computerized indirect bonding to virtual treatment planning, technology has slowly become a vital part of an orthodontist's repertoire. The digital age is here, and orthodontics must embrace the use of technology to help improve the quality of life of patients.
Collapse
Affiliation(s)
- Anand Marya
- Department of Orthodontics, University of Puthisastra, Phnom Penh, Cambodia
| | - Adith Venugopal
- Department of Orthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| |
Collapse
|
19
|
Della Coletta BB, Jacob TB, Moreira LADC, Pomini KT, Buchaim DV, Eleutério RG, Pereira EDSBM, Roque DD, Rosso MPDO, Shindo JVTC, Duarte MAH, Alcalde MP, Júnior RSF, Barraviera B, Dias JA, Andreo JC, Buchaim RL. Photobiomodulation Therapy on the Guided Bone Regeneration Process in Defects Filled by Biphasic Calcium Phosphate Associated with Fibrin Biopolymer. Molecules 2021; 26:847. [PMID: 33562825 PMCID: PMC7914843 DOI: 10.3390/molecules26040847] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/13/2022] Open
Abstract
The aim is to evaluate the effects of photobiomodulation therapy (PBMT) on the guided bone regeneration process (GBR) in defects in the calvaria of rats filled with biphasic calcium phosphate associated with fibrin biopolymer. Thirty male Wistar rats were randomly separated: BMG (n = 10), defects filled with biomaterial and covered by membrane; BFMG (n = 10), biomaterial and fibrin biopolymer covered by membrane; and BFMLG (n = 10), biomaterial and fibrin biopolymer covered by membrane and biostimulated with PBMT. The animals were euthanized at 14 and 42 days postoperatively. Microtomographically, in 42 days, there was more evident bone growth in the BFMLG, limited to the margins of the defect with permanence of the particles. Histomorphologically, an inflammatory infiltrate was observed, which regressed with the formation of mineralized bone tissue. In the quantification of bone tissue, all groups had a progressive increase in new bone tissue with a significant difference in which the BFMLG showed greater bone formation in both periods (10.12 ± 0.67 and 13.85 ± 0.54), followed by BFMG (7.35 ± 0.66 and 9.41 ± 0.84) and BMG (4.51 ± 0.44 and 7.11 ± 0.44). Picrosirius-red staining showed greater birefringence of collagen fibers in yellow-green color in the BFMLG, showing more advanced bone maturation. PBMT showed positive effects capable of improving and accelerating the guided bone regeneration process when associated with biphasic calcium phosphate and fibrin biopolymer.
Collapse
Affiliation(s)
- Bruna Botteon Della Coletta
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
| | - Thiago Borges Jacob
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
| | - Luana Aparecida de Carvalho Moreira
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil;
| | - Daniela Vieira Buchaim
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil;
- Medical School, University Center of Adamantina (UniFAI), Adamantina 17800-000, São Paulo, Brazil
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil; (R.S.F.J.); (B.B.)
| | - Rachel Gomes Eleutério
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
| | - Eliana de Souza Bastos Mazuqueli Pereira
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
| | - Domingos Donizeti Roque
- Medical and Dentistry School, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil; (T.B.J.); (L.A.d.C.M.); (D.V.B.); (R.G.E.); (E.d.S.B.M.P.); (D.D.R.)
| | - Marcelie Priscila de Oliveira Rosso
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
| | - João Vitor Tadashi Cosin Shindo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
| | - Marco Antônio Húngaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil;
| | - Murilo Priori Alcalde
- Department of Health Science, Unisagrado University Center, Bauru 17011-160, São Paulo, Brazil;
| | - Rui Seabra Ferreira Júnior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil; (R.S.F.J.); (B.B.)
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP – Univ Estadual Paulista), Botucatu 18618-687, São Paulo, Brazil
- Graduate Program in Clinical Research, Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP–Univ Estadual Paulista), Botucatu 18610-307, São Paulo, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil; (R.S.F.J.); (B.B.)
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP – Univ Estadual Paulista), Botucatu 18618-687, São Paulo, Brazil
- Graduate Program in Clinical Research, Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP–Univ Estadual Paulista), Botucatu 18610-307, São Paulo, Brazil
| | - Jefferson Aparecido Dias
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil;
- Postgraduate Program in Law, University of Marilia (UNIMAR), Marília 17525-902, São Paulo, Brazil
| | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil; (B.B.D.C.); (K.T.P.); (M.P.d.O.R.); (J.V.T.C.S.); (J.C.A.)
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil; (R.S.F.J.); (B.B.)
| |
Collapse
|
20
|
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.
Collapse
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
| |
Collapse
|
21
|
Hameed Mohamed MA, Abdallah KF, Hussein FA. Three-Dimensional Assessment of Mandibular Condylar Volume and Position Subsequent to Twin Block Functional Therapy of Skeletal Class II Malocclusion Accompanied by Low-Level Laser Therapy. Dent J (Basel) 2020; 8:dj8040115. [PMID: 33050123 PMCID: PMC7712278 DOI: 10.3390/dj8040115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/01/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
This study aimed to evaluate and compare the effect of low-level laser therapy (LLLT) on mandibular condylar volume and position following treatment of a Class II malocclusion with a twin block (TB) appliance employing cone beam computed tomography (CBCT). Twenty-four growing patients, aged 9–12 years, were randomly allocated into control and laser groups. All patients were treated with a TB appliance. The patients in the laser group were treated weekly with a gallium–aluminum–arsenide (GaAlAs) diode laser around the temporomandibular joint (TMJ) region for three months. CBCT images were obtained before and after TB therapy and the changes in TMJ and skeletal variables were evaluated and compared among and between the groups. In the laser group, the condylar volume of the right and left sides significantly increased by 213.3 mm3 and 231.2 mm3, respectively (p < 0.05), whereas in the control group it significantly increased by 225.2 mm3, and 244.2 mm3, respectively (p < 0.05), with forward and lateral positioning of both sides. Furthermore, effective mandibular, ramus, and corpus lengths were increased, which were not significant between the groups. Low-Level Laser therapy accomplished no considerable effect on mandibular condylar volume and position following the functional orthopedic treatment of skeletal Class II malocclusions using a TB appliance.
Collapse
|
22
|
Raman spectroscopic study of the effect of the use of laser/LED phototherapy on the repair of complete tibial fracture treated with internal rigid fixation. Photodiagnosis Photodyn Ther 2020; 30:101773. [PMID: 32315779 DOI: 10.1016/j.pdpdt.2020.101773] [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] [Received: 09/18/2019] [Revised: 03/17/2020] [Accepted: 04/02/2020] [Indexed: 11/23/2022]
Abstract
This study aimed to assess the repair of complete surgical tibial fractures fixed with internal rigid fixation (IRF) associated or not to the use of mineral trioxide aggregate (MTA) cement and treated or not with laser (λ = 780 nm, infrared) or LED (λ = 850 ± 10 nm, infrared) lights, 142.8 J/cm2 per treatment, by means of Raman spectroscopy. Open surgical tibial fractures were created on 18 rabbits (6 groups of 3 animals per group, ∼8 months old) and fractures were fixed with IRF. Three groups were grafted with MTA. The groups of IRF and IRF + MTA that received laser or LED were irradiated every other day during 15 days. Animals were sacrificed after 30 days, being the tibia surgically removed. Raman spectra were collected via the probe at the defect site in five points, resulting in 15 spectra per group (90 spectra in the dataset). Spectra were collected at the same day to avoid changes in laser power and experimental setup. The ANOVA general linear model showed that the laser irradiation of tibial bone fractures fixed with IRF and grafted with MTA had significant influence in the content of phosphate (peak ∼960 cm-1) and carbonated (peak ∼1,070 cm-1) hydroxyapatites as well as collagen (peak 1,452 cm-1). Also, peaks of calcium carbonate (1,088 cm-1) were found in the groups grafted with MTA. Based on the Raman spectroscopic data collected in this study, MTA has been shown to improve the repair of complete tibial fractures treated with IRF, with an evident increase of collagen matrix synthesis, and development of a scaffold of hydroxyapatite-like calcium carbonate with subsequent deposition of phosphate hydroxyapatite.
Collapse
|
23
|
Osteogenic Potential of Bovine Bone Graft in Combination with Laser Photobiomodulation: An Ex Vivo Demonstrative Study in Wistar Rats by Cross-Linked Studies Based on Synchrotron Microtomography and Histology. Int J Mol Sci 2020; 21:ijms21030778. [PMID: 31991756 PMCID: PMC7037661 DOI: 10.3390/ijms21030778] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Alveolar bone defects are usually the main concern when planning implant treatments for the appropriate oral rehabilitation of patients. To improve local conditions and achieve implant treatments, there are several methods used for increasing bone volume, among which one of the most successful, versatile, and effective is considered to be guided bone regeneration. The aim of this demonstrative study was to propose an innovative analysis protocol for the evaluation of the effect of photobiomodulation on the bone regeneration process, using rat calvarial defects of 5 mm in diameter, filled with xenograft, covered with collagen membrane, and then exposed to laser radiation. METHODS The animals were sacrificed at different points in time (i.e., after 14, 21, and 30 days). Samples of identical dimensions were harvested in order to compare the results obtained after different periods of healing. The analysis was performed by cross-linking the information obtained using histology and high-resolution synchrotron-based tomography on the same samples. A comparison was made with both the negative control (NC) group (with a bone defect which was left for spontaneous healing), and the positive control (PC) group (in which the bone defects were filled with xenografts and collagen membrane without receiving laser treatment). RESULTS We demonstrated that using photobiomodulation provides a better healing effect than when receiving only the support of the biomaterial. This effect has been evident for short times treatments, i.e., during the first 14 days after surgery. CONCLUSION The proposed analysis protocol was effective in detecting the presence of higher quantities of bone volumes under remodeling after photobiomodulation with respect to the exclusive bone regeneration guided by the xenograft.
Collapse
|
24
|
Sarmadi S, Tanbakuchi B, Hesam Arefi A, Chiniforush N. The Effect of Photobiomodulation on Distraction Osteogenesis. J Lasers Med Sci 2019; 10:330-337. [PMID: 31875127 DOI: 10.15171/jlms.2019.53] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Distraction osteogenesis (DO) is a surgical procedure to increase bone height in different body parts. DO includes a surgical incision, wherein the bone is cut and a device is installed for further separation of the two ends by gradual unscrewing of the device screw. New bone gradually forms and fills the gap, and the bone height increases as such. Photobiomodulation (PBM) or low-level laser therapy (LLLT) enhances the formation of soft and hard tissue such as bone and can, therefore, accelerate the process of DO and shorten the duration of different surgical phases of DO such as latency, activation, and consolidation. Different laser types with variable exposure settings and protocols have been used for this purpose. The gallium-aluminum-arsenide (GaAlAs) diode laser is the most commonly used laser type for LLLT. This study reviews 18 published articles on the effects of LLLT on DO and summarizes their findings to further elucidate this topic.
Collapse
Affiliation(s)
- Sarvin Sarmadi
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrad Tanbakuchi
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Nasim Chiniforush
- Laser Research Center of Dentistry (LRCD), Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
25
|
Daigo Y, Daigo E, Hasegawa A, Fukuoka H, Ishikawa M, Takahashi K. Utility of High-Intensity Laser Therapy Combined with Photobiomodulation Therapy for Socket Preservation After Tooth Extraction. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 38:75-83. [PMID: 31846389 PMCID: PMC7044790 DOI: 10.1089/photob.2019.4652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objective: High-intensity laser therapy (HILT) combined with photobiomodulation therapy (PBMT) using a diode or CO2 laser was administered after extraction of the left first molar in rats. Effects on socket preservation (preservation of the alveolar bone and healing time after extraction) were evaluated histopathologically. Background: Irradiation using a diode or CO2 laser has been shown to hasten wound healing, but the effects remain controversial. Methods: Five-week-old male Wistar rats that underwent extraction of the left maxillary first molar were divided into three groups: diode laser irradiation (diode group), CO2 laser irradiation (CO2 group), and no laser irradiation (control group). HILT (27 J) was performed immediately after tooth extraction to enhance blood coagulation, followed by PBMT (0.7 J) 1 day later to enhance healing. Tissues, including the extraction socket, were removed en bloc 3, 5, 7, 10, and 21 days postextraction to determine the morphological characteristics of wound healing and the distribution of myofibroblasts involved in scar formation. Results: In the diode and CO2 groups, new bone formation and cancellous bone maturation were observed at an early stage of wound healing. The number of myofibroblasts was significantly lower in the laser treatment groups than the control (p < 0.001), and both treatment groups had a significantly higher alveolar crest height (p < 0.01), with almost no concavity in the mucosa of the extraction wound. Conclusions: Combined HILT and PBMT following tooth extraction hastened wound healing and preserved alveolar crest height, suggesting a role in socket preservation.
Collapse
Affiliation(s)
- Yuki Daigo
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Osaka, Japan
| | - Erina Daigo
- Department of Anesthesiology, Osaka Dental University, Osaka, Osaka, Japan
| | - Akari Hasegawa
- Department of Anesthesiology, Osaka Dental University, Osaka, Osaka, Japan
| | | | | | - Kazuya Takahashi
- Department of Geriatric Dentistry, Osaka Dental University, Osaka, Osaka, Japan
| |
Collapse
|
26
|
Rosso MPDO, Buchaim DV, Pomini KT, Coletta BBD, Reis CHB, Pilon JPG, Duarte Júnior G, Buchaim RL. Photobiomodulation Therapy (PBMT) Applied in Bone Reconstructive Surgery Using Bovine Bone Grafts: A Systematic Review. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E4051. [PMID: 31817369 PMCID: PMC6947623 DOI: 10.3390/ma12244051] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/22/2019] [Accepted: 11/29/2019] [Indexed: 02/07/2023]
Abstract
The use of low-level laser therapy (LLLT) with biomodulatory effects on biological tissues, currently called photobiomodulation therapy (PBMT), assists in healing and reduces inflammation. The application of biomaterials has emerged in bone reconstructive surgery, especially the use of bovine bone due to its biocompatibility. Due to the many benefits related to the use of PBMT and bovine bones, the aim of this research was to review the literature to verify the relationship between PBMT and the application of bovine bone in bone reconstruction surgeries. We chose the PubMed/MEDLINE, Web of Science, and Scopus databases for the search by matching the keywords: "Bovine bone AND low-level laser therapy", "Bovine bone AND photobiomodulation therapy", "Xenograft AND low-level laser therapy", and "Xenograft AND photobiomodulation therapy". The initial search of the three databases retrieved 240 articles, 18 of which met all inclusion criteria. In the studies concerning animals (17 in total), there was evidence of PBMT assisting in biomaterial-related conduction, formation of new bone, bone healing, immunomarker expression, increasing collagen fibers, and local inflammation reduction. However, the results disagreed with regard to the resorption of biomaterial particles. The only human study showed that PBMT with bovine bone was effective for periodontal regeneration. It was concluded that PBMT assists the process in bone reconstruction when associated with bovine bone, despite divergences between applied protocols.
Collapse
Affiliation(s)
- Marcelie Priscila de Oliveira Rosso
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru, SP 17012-901, Brazil; (M.P.d.O.R.); (K.T.P.); (B.B.D.C.)
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília, SP 17525–902, Brazil; (D.V.B.); (C.H.B.R.); (J.P.G.P.); (G.D.J.)
- Medical School, University Center of Adamantina (UniFAI), Nove de Julho Street, 730-Centro, Adamantina, SP 17800-000, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru, SP 17012-901, Brazil; (M.P.d.O.R.); (K.T.P.); (B.B.D.C.)
| | - Bruna Botteon Della Coletta
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru, SP 17012-901, Brazil; (M.P.d.O.R.); (K.T.P.); (B.B.D.C.)
| | - Carlos Henrique Bertoni Reis
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília, SP 17525–902, Brazil; (D.V.B.); (C.H.B.R.); (J.P.G.P.); (G.D.J.)
| | - João Paulo Galletti Pilon
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília, SP 17525–902, Brazil; (D.V.B.); (C.H.B.R.); (J.P.G.P.); (G.D.J.)
| | - Getúlio Duarte Júnior
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília, SP 17525–902, Brazil; (D.V.B.); (C.H.B.R.); (J.P.G.P.); (G.D.J.)
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru, SP 17012-901, Brazil; (M.P.d.O.R.); (K.T.P.); (B.B.D.C.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília, SP 17525–902, Brazil; (D.V.B.); (C.H.B.R.); (J.P.G.P.); (G.D.J.)
| |
Collapse
|
27
|
Evaluation of the Effects of Low-Level Laser Therapy on Diabetic Bone Healing. J Craniofac Surg 2019; 30:1994-1998. [PMID: 31232987 DOI: 10.1097/scs.0000000000005654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of the present study was to evaluate the effects of low-level laser therapy (LLLT) and biphasic alloplastic bone graft material on diabetic bone healing. Induction of diabetes was performed in 14 male Sprague-Dawley rats by intraperitoneal injection of a 50 mg/kg dose of streptozotocin. Two bilaterally symmetrical non-critical-sized bone defects were created in the parietal bones in each rat. Right defects were filled with biphasic alloplastic bone graft. Rats were randomly divided into 2 groups, with 1 group receiving 10 sessions of LLLT (GaAlAs, 78.5 J/cm, 100mW, 0.028 cm beam). The LLLT was started immediately after surgery and once every 3 days during postoperative period. At the end of treatment period, new bone formation and osteoblast density were determined using histomorphometry. Empty (control), graft-filled, LLLT-treated and both graft-filled and LLLT-treated bone defects were compared. New bone formation was higher in the graft treatment samples compared with the control (P = 0.009) and laser samples (P = 0.029). In addition, graft-laser combination treatment samples revealed higher bone formation than control (P = 0.008) and laser (P = 0.026) samples. Osteoblast density was significantly higher in the laser treatment (P <0.001), graft treatment (P = 0.001) and graft-laser combination treatment (P <0.001) samples than control samples. In addition, significantly higher osteoblast density was observed in the graft-laser combination treatment samples compared to the graft treatment samples (P = 0.005). The LLLT was effective to stimulate osteoblastogenesis but failed to increase bone formation. Graft augmentation for treatment of bone defects seems essential for proper bone healing in diabetes, regeneration may be supported by the LLLT to enhance osteoblastogenesis.
Collapse
|
28
|
Sumida R, Maeda T, Kawahara I, Yusa J, Kato Y. Platelet-rich fibrin increases the osteoprotegerin/receptor activator of nuclear factor-κB ligand ratio in osteoblasts. Exp Ther Med 2019; 18:358-365. [PMID: 31258673 PMCID: PMC6566034 DOI: 10.3892/etm.2019.7560] [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: 01/25/2019] [Accepted: 04/25/2019] [Indexed: 12/13/2022] Open
Abstract
Platelet-rich fibrin (PRF) is a platelet concentrate derived from complete autologous blood rich in growth factors in the fibrin matrix. Although PRF has been used during oral surgery to optimize wound healing in soft and hard tissue, the precise role of PRF in bone healing remains unclear. The present study assessed the role of PRF in bone remodeling. PRF was prepared from whole blood by low speed centrifugation without any anti-coagulants. Culture of MC3T3-E1 cells with PRF induced the expression of osteoprotegerin (OPG), but had no effect on the expression of receptor activator of nuclear factor-κB ligand (RANKL), increasing the OPG/RANKL ratio. Expression of other osteoblastic differentiation makers, including BMP-2 and −4 and RUNX2, was not affected. PRF filling of a hole defect in the mental foramen bone of rats increased OPG positivity and decreased tartrate-resistant acid phosphatase positivity compared with unfilled control. In conclusion, PRF increased the OPG/RANKL ratio by inducing OPG expression, suggesting that PRF enhances early stage osteogenesis by optimizing osteoblastic differentiation. The present study provides a scientific basis for clinical findings showing that PRF can enhance bone regeneration such as sinus lift.
Collapse
Affiliation(s)
- Ryuta Sumida
- Department of Oral and Maxillofacial Surgery, Ohu University School of Dentistry, Koriyama, Fukushima 963-8611, Japan
| | - Toyonobu Maeda
- Department of Oral Function and Molecular Biology, Ohu University School of Dentistry, Koriyama, Fukushima 963-8611, Japan
| | - Ichiro Kawahara
- Department of Oral and Maxillofacial Surgery, Ohu University School of Dentistry, Koriyama, Fukushima 963-8611, Japan
| | - Junko Yusa
- Department of Oral Medical Sciences, Ohu University School of Dentistry, Koriyama, Fukushima 963-8611, Japan
| | - Yasumasa Kato
- Department of Oral Function and Molecular Biology, Ohu University School of Dentistry, Koriyama, Fukushima 963-8611, Japan
| |
Collapse
|
29
|
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.
Collapse
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
| | | |
Collapse
|
30
|
Safdari R, Pouremadi N, Talebzadeh E, Mottaghi A, Amini S, Hossienzadeh A, Movahedian Attar B. The Impacts of Low-Level Laser Therapy - A Complementary Treatment in the Management of Side Effects After Implant Surgery. J Lasers Med Sci 2019; 9:207-211. [PMID: 30809333 DOI: 10.15171/jlms.2018.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: One of the most important medical applications of laser is low-level laser therapy (LLLT). In this method, laser radiation penetrates easily into the target tissue. The aim of this study was to investigate whether LLLT can reduce the side effects of advanced implant surgery. Methods: In this triple-blind clinical trial, 30 patients aged 25 to 65 years were selected for implant insertion and divided into two groups. In the laser group, immediately after the surgery, 72 hours and 1 week after the surgery, the surgical site was irradiated with an 830 nm laser. The dose required for the laser therapy was 5 J/cm2 . The degree of pain, facial swelling and wound healing were analyzed using statistical methods. Results: Our results showed that at 12, 24, 48, and 72 hours after the surgery, the pain level was reduced in the laser group compared with the placebo group (P<0.05). Swelling of the face was also significantly reduced 7 days after surgery in the laser group (P<0.05). The investigation on the recovery conditions of the surgical site showed that on the 3rd, 7th and 14th days after the surgery, higher levels of wound healing have been achieved (P<0.05). Conclusion: Our results suggest that laser, as a complementary therapy; can be used to reduce the severity and duration of pain. Also, laser can reduce facial swelling and accelerate wound healing.
Collapse
Affiliation(s)
- Roya Safdari
- Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Narges Pouremadi
- Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Ehsan Talebzadeh
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Arash Mottaghi
- Department of Oral Diseases, School of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Shahram Amini
- Department of Periodontics, School of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Abolfath Hossienzadeh
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Bijan Movahedian Attar
- Dental Implant Research and Department of Oral and Maxillofacial Surgery, School of Dentistry, Isfahan University of Medical Science, Isfahan, Iran
| |
Collapse
|
31
|
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
Collapse
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
| |
Collapse
|
32
|
Brassolatti P, de Andrade ALM, Bossini PS, Orth DL, Duarte FO, dos Anjos Souza AB, Parizotto NA, de Freitas Anibal F. Photobiomodulation on critical bone defects of rat calvaria: a systematic review. Lasers Med Sci 2018; 33:1841-1848. [DOI: 10.1007/s10103-018-2653-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 09/27/2018] [Indexed: 11/29/2022]
|
33
|
Gurler G, Gursoy B. Investigation of effects of low level laser therapy in distraction osteogenesis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2018; 119:469-476. [PMID: 29885471 DOI: 10.1016/j.jormas.2018.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/29/2018] [Indexed: 10/14/2022]
Abstract
PURPOSE The purpose of the study was to investigate the histopathological effects of low level laser therapy (LLLT) application in distraction osteogenesis (DO). MATERIALS AND METHODS Twenty adult female New Zealand white rabbits were included in the study. Under general anesthesia unilateral mandibular corpus osteotomy was performed. Custom made external distractors were placed to right mandibles of rabbits. After five days of latency period, distractors were activated once a day for 5 days with 1mm/day frequency. Animals in the study group were exposed to LLLT from six different points transcutanously after each distractor activation. Control group was not exposed to laser irradiation. Animals were sacrificed after 15 and 30 days of consolidation periods and mandibles were processed for histopathological investigation under light microscope. Bone healing was analyzed with a semi-quantitative 4 point scale. RESULTS Osteoblastic activity and vascularization were found higher in the study group than control group after 15 days consolidation. Chondroblastic activity of the control group was significantly higher than the study group in both 15 and 30 days of consolidation groups. Osteoblastic activity and trabecular bone formation were found significantly higher in the study group than the control group after 15 days consolidation. CONCLUSIONS The use of LLLT in activation period of distraction osteogenesis stimulates bone repair in the early stages of distraction osteogenesis by inducing intramembranous healing and less cartilage tissue formation in the bone callus.
Collapse
Affiliation(s)
- G Gurler
- Istanbul Medipol University, School of Dentistry, Department of Oral and Maxillofacial Surgery, Ataturk Bulvari No 27, 34083 Unkapani-Fatih Istanbul, Turkey.
| | - B Gursoy
- University of Kyrenia, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, University of Kyrenia, Şehit Yahya Bakır Sokak, Karakum Kyrenia, TRNC.
| |
Collapse
|
34
|
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.
Collapse
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
| | | |
Collapse
|
35
|
Alves AMM, de Miranda Fortaleza LM, Filho ALMM, Ferreira DCL, da Costa CLS, Viana VGF, Santos JZLV, de Oliveira RA, de Meira Gusmão GO, Soares LES. Evaluation of bone repair after application of a norbixin membrane scaffold with and without laser photobiomodulation (λ 780 nm). Lasers Med Sci 2018; 33:1493-1504. [DOI: 10.1007/s10103-018-2506-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 04/05/2018] [Indexed: 02/07/2023]
|
36
|
Laser/LED phototherapy on the repair of tibial fracture treated with wire osteosynthesis evaluated by Raman spectroscopy. Lasers Med Sci 2018; 33:1657-1666. [PMID: 29687410 DOI: 10.1007/s10103-018-2508-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 04/10/2018] [Indexed: 12/17/2022]
Abstract
The aim of the present study was to assess, by means of Raman spectroscopy, the repair of complete surgical tibial fractures fixed with wire osteosynthesis (WO) treated or not with infrared laser (λ780 nm) or infrared light emitting diode (LED) (λ850 ± 10 nm) lights, 142.8 J/cm2 per treatment, associated or not to the use of mineral trioxide aggregate (MTA) cement. Surgical tibial fractures were created on 18 rabbits, and all fractures were fixed with WO and some groups were grafted with MTA. Irradiated groups received lights at every other day during 15 days, and all animals were sacrificed after 30 days, being the tibia removed. The results showed that only irradiation with either laser or LED influenced the peaks of phosphate hydroxyapatite (~ 960 cm-1). Collagen (~ 1450 cm-1) and carbonated hydroxyapatite (~ 1070 cm-1) peaks were influenced by both the use of MTA and the irradiation with either laser or LED. It is concluded that the use of either laser or LED phototherapy associated to MTA cement was efficacious on improving the repair of complete tibial fractures treated with wire osteosynthesis by increasing the synthesis of collagen matrix and creating a scaffold of calcium carbonate (carbonated hydroxyapatite-like) and the subsequent deposition of phosphate hydroxyapatite.
Collapse
|
37
|
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.
Collapse
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.
| |
Collapse
|
38
|
Bölükbaşı Ateş G, Ak Can A, Gülsoy M. Investigation of photobiomodulation potentiality by 635 and 809 nm lasers on human osteoblasts. Lasers Med Sci 2017; 32:591-599. [PMID: 28116535 DOI: 10.1007/s10103-017-2153-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/12/2017] [Indexed: 01/10/2023]
Abstract
Photobiomodulation (PBM) describes light-induced photochemical reactions achieved by the application of red or near infrared lasers/LED light with low energy densities. This noninvasive and painless method has been used in some clinical areas but controversial outcomes demand a skeptical look for its promising and potential effects. In this detailed in vitro study, the osteoblast cells were irradiated with 635 and 809 nm diode lasers at energy densities of 0.5, 1, and 2 J/cm2. Cell viability, proliferation, bone formation, and osteoblast differentiation were evaluated by methylthiazole tetrazolium (MTT) assay, Alamar Blue assay, acridine orange/propidium iodide staining, alkaline phosphatase (ALP) activity, Alizarin red staining, and reverse-transcription polymerase chain reaction (RT-PCR) to test the expression of collagen type I, ALPL, and osteocalcin. The results indicate that studied energy doses have a transient effect (48 h after laser irradiation) on the osteoblast viability and proliferation. Similarly, laser irradiation did not appear to have any effect on ALP activity. These results were confirmed by RT-PCR analysis of osteoblast markers. This study suggests that several irradiation parameters and variations in the methods should be clearly established in the laboratory before laser treatment becomes a postulated application for bone tissue regeneration in clinical level.
Collapse
Affiliation(s)
- Gamze Bölükbaşı Ateş
- Institute of Biomedical Engineering, Bogazici University, Uskudar, Istanbul, Turkey, 34684.
| | - Ayşe Ak Can
- Engineering Faculty, Biomedical Engineering, Erzincan University, Erzincan, Turkey, 24100
| | - Murat Gülsoy
- Institute of Biomedical Engineering, Bogazici University, Uskudar, Istanbul, Turkey, 34684
| |
Collapse
|
39
|
Aoki A, Mizutani K, Schwarz F, Sculean A, Yukna RA, Takasaki AA, Romanos GE, Taniguchi Y, Sasaki KM, Zeredo JL, Koshy G, Coluzzi DJ, White JM, Abiko Y, Ishikawa I, Izumi Y. Periodontal and peri-implant wound healing following laser therapy. Periodontol 2000 2017; 68:217-69. [PMID: 25867988 DOI: 10.1111/prd.12080] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2014] [Indexed: 12/18/2022]
Abstract
Laser irradiation has numerous favorable characteristics, such as ablation or vaporization, hemostasis, biostimulation (photobiomodulation) and microbial inhibition and destruction, which induce various beneficial therapeutic effects and biological responses. Therefore, the use of lasers is considered effective and suitable for treating a variety of inflammatory and infectious oral conditions. The CO2 , neodymium-doped yttrium-aluminium-garnet (Nd:YAG) and diode lasers have mainly been used for periodontal soft-tissue management. With development of the erbium-doped yttrium-aluminium-garnet (Er:YAG) and erbium, chromium-doped yttrium-scandium-gallium-garnet (Er,Cr:YSGG) lasers, which can be applied not only on soft tissues but also on dental hard tissues, the application of lasers dramatically expanded from periodontal soft-tissue management to hard-tissue treatment. Currently, various periodontal tissues (such as gingiva, tooth roots and bone tissue), as well as titanium implant surfaces, can be treated with lasers, and a variety of dental laser systems are being employed for the management of periodontal and peri-implant diseases. In periodontics, mechanical therapy has conventionally been the mainstream of treatment; however, complete bacterial eradication and/or optimal wound healing may not be necessarily achieved with conventional mechanical therapy alone. Consequently, in addition to chemotherapy consisting of antibiotics and anti-inflammatory agents, phototherapy using lasers and light-emitting diodes has been gradually integrated with mechanical therapy to enhance subsequent wound healing by achieving thorough debridement, decontamination and tissue stimulation. With increasing evidence of benefits, therapies with low- and high-level lasers play an important role in wound healing/tissue regeneration in the treatment of periodontal and peri-implant diseases. This article discusses the outcomes of laser therapy in soft-tissue management, periodontal nonsurgical and surgical treatment, osseous surgery and peri-implant treatment, focusing on postoperative wound healing of periodontal and peri-implant tissues, based on scientific evidence from currently available basic and clinical studies, as well as on case reports.
Collapse
|
40
|
Atasoy KT, Korkmaz YT, Odaci E, Hanci H. The efficacy of low-level 940 nm laser therapy with different energy intensities on bone healing. Braz Oral Res 2017; 31:e7. [PMID: 28076498 DOI: 10.1590/1807-3107bor-2017.vol31.0007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 11/01/2016] [Indexed: 12/14/2022] Open
Abstract
The aim of this study was to evaluate the efficacy of low-level 940 nm laser therapy with energy intensities of 5, 10 and 20 J/cm2 on bone healing in an animal model. A total of 48 female adult Wistar rats underwent surgery to create bone defects in the right tibias. Low-level laser therapy (LLLT) was applied immediately after surgery and on post-operative days 2, 4, 6, 8, 10 and 12 in three study groups with energy intensities of 5 J/cm2, 10 J/cm2 and 20 J/cm2 using a 940 nm Gallium-Aluminium-Arsenide (Ga-Al-As) laser, while one control group underwent only the tibia defect surgery. All animals were sacrificed 4 or 8 weeks post-surgery. Fibroblasts, osteoblasts, osteocytes, osteoclasts and newly formed vessels were evaluated by a histological examination. No significant change was observed in the number of osteocytes, osteoblasts, osteoclasts and newly formed vessels at either time period across all laser groups. Although LLLT with the 10 J/cm2 energy density increased fibroblast activity at the 4th week in comparison with the 5 and 20 J/cm2 groups, no significant change was observed between the laser groups and the control group. These results indicate that low-level 940 nm laser with different energy intensities may not have marked effects on the bone healing process in both phases of bone formation.
Collapse
Affiliation(s)
- Kerem Turgut Atasoy
- Karadeniz Technical University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Trabzon, Turkey
| | - Yavuz Tolga Korkmaz
- Karadeniz Technical University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Trabzon, Turkey
| | - Ersan Odaci
- Karadeniz Technical University, Faculty of Medicine, Department of Histology and Embriology, Trabzon, Turkey
| | - Hatice Hanci
- Karadeniz Technical University, Faculty of Medicine, Department of Histology and Embriology, Trabzon, Turkey
| |
Collapse
|
41
|
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.
Collapse
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
| |
Collapse
|
42
|
Zaky AA, El Shenawy HMM, Harhsh TAH, Shalash M, Awad NMI. Can Low Level Laser Therapy Benefit Bone Regeneration in Localized Maxillary Cystic Defects? - A Prospective Randomized Control Trial. Open Access Maced J Med Sci 2016; 4:720-725. [PMID: 28028422 PMCID: PMC5175530 DOI: 10.3889/oamjms.2016.140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 11/24/2016] [Accepted: 11/26/2016] [Indexed: 01/15/2023] Open
Abstract
AIM: The aim of the study was to evaluate the effect of Low-Level Laser Therapy (LLLT) on bone formation in cystic defects following cyst enucleation. PATIENTS AND METHODS: The sample was composed of sixteen patients with enucleated maxillary bony cystic lesions. With an age range from 20 - 44 grouped as eight Laser and eight Control patients. Laser group was subjected to low intensity diode laser immediately after surgery and then for three times per week for two weeks using a therapeutic laser irradiation. Group B (control group): patients were not subjected laser therapy. RESULTS: The predictor variable was exposure of bone defect to LLLT or none. The outcome variable was bone density changes measured by digital radiographs at day 1 and days 90 postoperatively. Descriptive and bivariate statistics were computed. There were no statistically significant differences between the 2 groups for the bone density at day 1. There was a statistically significant difference in bone density changes in each group at day 90: Significant at P ≤ 0.05. After adjusting for differences in day 1 for bone density, the estimated mean change in bone density changes at day 90 was significantly larger for Laser compared with control. CONCLUSION: The results of this study suggested that LLLT can enhance bone healing in maxillary cystic defects. This can serve as an adjunct method in preventing possible delayed healing and pathological fractures This also will be helpful for more researchers in early loading in case of dental implants to accelerate osseointegration.
Collapse
Affiliation(s)
- Ahmed Abbas Zaky
- National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | | | | | - Mahmoud Shalash
- Oral Surgery and Medicine Department, National Research Center, Cairo, Egypt
| | | |
Collapse
|
43
|
The effects of photobiomodulation and low-amplitude high-frequency vibration on bone healing process: a comparative study. Lasers Med Sci 2016; 31:1827-1836. [DOI: 10.1007/s10103-016-2058-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/17/2016] [Indexed: 10/21/2022]
|
44
|
Blay A, Blay CC, Tunchel S, Gehrke SA, Shibli JA, Groth EB, Zezell DM. Effects of a Low-Intensity Laser on Dental Implant Osseointegration: Removal Torque and Resonance Frequency Analysis in Rabbits. J ORAL IMPLANTOL 2016; 42:316-20. [DOI: 10.1563/aaid-joi-d-15-00064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study was to investigate how a low-intensity laser affects the stability and reverse torque resistance of dental implants installed in the tibia of rabbits. Thirty rabbits received 60 dental implants with the same design and surface treatment, one in each proximal metaphysis of the tibia. Three groups were prepared (n = 10 animals each): conventional osseointegration without treatment (control group), surgical sites irradiated with a laser beam emitted in the visible range of 680 nm (Lg1 group), surgical sites irradiated with a laser beam with a wavelength in the infrared range of 830 nm (Lg2 group). Ten irradiation sessions were performed 48 hours apart; the first session was during the immediate postoperative period. Irradiation energy density was 4 J/cm2 per point in 2 points on each side of the tibias. The resonance frequency and removal torque values were measured at 2 time points after the implantations (3 and 6 weeks). Both laser groups (Lg1 and Lg2) presented a significant difference between resonance frequency analysis values at the baseline and the values obtained after 3 and 6 weeks (P > .05). Although the removal torque values of all groups increased after 6 weeks (P < .05), both laser groups presented greater mean values than those of the control group (P < .01). Photobiomodulation using laser irradiation with wavelengths of 680 and 830 nm had a better degree of bone integration than the control group after 6 weeks of observation time.
Collapse
Affiliation(s)
- Alberto Blay
- Center for Lasers and Applications, Laboratory of Biophotonics Center, Nuclear and Energy Research Institute, São Paulo, Brazil
| | - Claudia C Blay
- Center for Lasers and Applications, Laboratory of Biophotonics Center, Nuclear and Energy Research Institute, São Paulo, Brazil
| | - Samy Tunchel
- Department of Periodontics and Implantology, School of Dentistry, University of Santo Amaro, São Paulo, Brazil
| | - Sergio Alexandre Gehrke
- Biotecnos Research Center, Santa Maria, Brazil; Catholic University San Antonio of Murcia, Murcia, Spain
| | - Jamil Awad Shibli
- Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, São Paulo, Brazil
| | - Eduardo B Groth
- Center for Lasers and Applications, Laboratory of Biophotonics Center, Nuclear and Energy Research Institute, São Paulo, Brazil
| | - Denise M Zezell
- Center for Lasers and Applications, Laboratory of Biophotonics Center, Nuclear and Energy Research Institute, São Paulo, Brazil
| |
Collapse
|
45
|
Chawla K, Lamba AK, Tandon S, Faraz F, Gaba V. Effect of low-level laser therapy on wound healing after depigmentation procedure: A clinical study. J Indian Soc Periodontol 2016; 20:184-8. [PMID: 27143832 PMCID: PMC4847466 DOI: 10.4103/0972-124x.176393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
AIM The aim of the present study is to evaluate and compare the effects of low-level laser therapy (LLLT) on wound healing after depigmentation procedure. MATERIALS AND METHODS In this study, 12 patients with bilateral melanin hyperpigmentation were treated with surgical stripping using a blade. After completion of the surgical process and bleeding stasis, any of the symmetrical surgical sites was randomly assigned for LLLT (test site) using a defocused diode laser at 1 mm distance for 5 min. After every laser exposure, the surgical site was coated with plaque disclosing solution (erythrosine) on the 3(rd), 7(th), and 15(th) day. A photograph of the surgical site was taken using a Digital SLR Camera, which was placed at 30 cm distance at 55 mm zoom, 1/100 shutter speed, f 14 aperture size, and ISO 4000 with a ring flash. The area of the stained parts of the photographs was evaluated using image analysis software. RESULTS At day 3, test site showed 1.26 ± 0.23 mm(2) and control site showed 1.45 ± 0.21 mm(2) stain uptake by the tissue which was statistically significant. At day 7 and day 15, the test sites exhibited 1.24 ± 0.30 mm(2) and 1.12 ± 0.25 mm(2) stain uptake, whereas the control site showed 1.37 ± 25 mm(2) and 1.29 ± 0.28 mm(2) staining, respectively, which were not statistically significant. CONCLUSION Within the limitations of this study, the findings revealed that LLLT promotes wound healing after depigmentation procedure until the 3(rd) day. On the 7(th) and 15(th) day, the difference in healing was not statistically significant.
Collapse
Affiliation(s)
- Kirti Chawla
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
| | - Arundeep Kaur Lamba
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
| | - Shruti Tandon
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
| | - Farrukh Faraz
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
| | - Varun Gaba
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
| |
Collapse
|
46
|
de Almeida VL, de Andrade Gois VL, Andrade RNM, Cesar CPHAR, de Albuquerque-Junior RLC, de Mello Rode S, Paranhos LR. Efficiency of low-level laser therapy within induced dental movement: A systematic review and meta-analysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2016; 158:258-66. [PMID: 27016661 DOI: 10.1016/j.jphotobiol.2016.02.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/27/2016] [Accepted: 02/29/2016] [Indexed: 10/22/2022]
Abstract
The low level laser is widely used in Dentistry, in particular, to decrease pain and increase the speed of tooth movement. This study was to perform a systematic literature search to investigate the effectiveness of low level laser and low energy density therapy of the induced tooth movement. This research was performed following the PRISMA instructions and was registered in the PROSPERO. The articles were searched in six electronic databases, with no date and language restriction. Only randomized clinical trials were selected. Articles that did not use the extraction of first premolars as orthodontic planning were excluded, as well as articles using high energy density laser therapy. The articles were assessed for risk of bias and individual quality. The results were analyzed using meta-analysis, using randomized effect. The initial sample consisted of 161 articles. Six articles remained eligible for qualitative analysis and five for quantitative analysis. According to the individual quality, most articles were classified as high quality. Three articles detected statistically significant differences in induced movement by comparing the orthodontic movement between the experimental and control groups. For the maxilla, there was a statistically significant influence of the laser in three months and, for the mandible, in one month. It may be concluded that there is no evidence that laser therapy can accelerate the induced tooth movement.
Collapse
Affiliation(s)
| | | | | | | | | | - Sigmar de Mello Rode
- Department of Oral Pathology, Paulista State University, São José dos Campos, São Paulo, Brazil
| | - Luiz Renato Paranhos
- Department of Dentistry, Federal University of Sergipe, Lagarto, Sergipe, Brazil.
| |
Collapse
|
47
|
Abstract
BACKGROUND The effectiveness of low power lasers on incisional wound healing, because of conflicting results of previous studies, is uncertain. Therefore, the aim of this study was to evaluate the effects of low-level helium-neon (He-Ne) laser irradiation on wound healing in rat's oral mucosa. MATERIALS AND METHODS Sixty-four standardized incisions were carried out on the buccal mucosa of 32 male Wistar divided into four groups of eight animals each. Each rat received two incisions on the opposite sides of the buccal mucosa by a steel scalpel. On the right side (test side), a He-Ne laser (632 nm) was employed on the incision for 40 s. Laser radiation was used just in 1(st) day, 1(st) and 2(nd) day, 1(st) and 3(rd) day, and continuous 3 days in groups of A, B, C, and D of rats, respectively. The left side (control side) did not receive any laser. Histological processing and hematoxylin and eosin staining were done on tissue samples after 5 days. Wilcoxon and Kruskal-Wallis tests were used for statistical analysis. RESULTS Histological analysis showed that the tissue healing after continuous 3 days on the laser irradiated side was better than the control side, but there was no difference between the two sides in each groups (P > 0.05). CONCLUSION This study showed that He-Ne laser had no beneficial effects on incisional oral wound healing particularly in 5 days after laser therapy. Future research in the field of laser effects on oral wound healing in human is recommended.
Collapse
Affiliation(s)
- Farimah Sardari
- Department of Oral Medicine, School of Dentistry, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Farzaneh Ahrari
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
48
|
Micro-computed tomography and histomorphometric analysis of human alveolar bone repair induced by laser phototherapy: a pilot study. Int J Oral Maxillofac Surg 2015; 44:1521-8. [DOI: 10.1016/j.ijom.2015.08.989] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 06/30/2015] [Accepted: 08/24/2015] [Indexed: 12/14/2022]
|
49
|
The Radiological and Stereological Analysis of the Effect of Low-Level Laser Therapy on the Mandibular Midline Distraction Osteogenesis. J Craniofac Surg 2015; 26:e595-9. [DOI: 10.1097/scs.0000000000002046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
50
|
Fekrazad R, Sadeghi Ghuchani M, Eslaminejad M, Taghiyar L, Kalhori K, Pedram M, Shayan A, Aghdami N, Abrahamse H. The effects of combined low level laser therapy and mesenchymal stem cells on bone regeneration in rabbit calvarial defects. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:180-5. [DOI: 10.1016/j.jphotobiol.2015.08.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 07/16/2015] [Accepted: 08/11/2015] [Indexed: 11/26/2022]
|