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Vaddamanu SK, Alhamoudi FH, Vyas R, Gurumurthy V, Siurkel Y, Cicciù M, Minervini G. Attenuation of orthodontically induced inflammatory root resorption by using low-intensity pulsed ultrasound as a therapeutic modality- a systematic review. BMC Oral Health 2024; 24:67. [PMID: 38200481 PMCID: PMC10782536 DOI: 10.1186/s12903-023-03741-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
Ultrasound is an effective tool for both diagnostic and therapeutic applications. As an imaging tool, ultrasound has mostly been used for real-time noninvasive diagnostic imaging. As ultrasound propagates through a material, a reflected radio-frequency (RF) signal is generated when encountering a mismatch in acoustic impedance. While traditionally recognized for its diagnostic imaging capabilities, the application of ultrasound has broadened to encompass therapeutic interventions, most notably in the form of Low-Intensity Pulsed Ultrasound (LIPUS). Low-Intensity Pulsed Ultrasound (LIPUS) is a form of mechanical energy transmitted transcutaneously by high-frequency acoustic pressure waves. The intensity of LIPUS (30 mW/cm2) is within the range of ultrasound intensities used for diagnostic purposes (1-50 mW/cm2) and is regarded as non-thermal, non-destructive, permeating living tissues and triggering a cascade of biochemical responses at the cellular level. The LIPUS device produces a 200 µs burst of 1.5 MHz acoustic sine waves, that repeats at a modulation frequency of 1 kHz and provides a peak pressure of 30 mW/cm2. Low-intensity pulsed ultrasound (LIPUS) forms one of the currently available non-invasive healing-enhancing devices besides electro-stimulation (pulsed electro-magnetic field, PEMF). This modality has been leveraged to enhance drug delivery, expedite injury recovery, improve muscle mobility, alleviate joint stiffness and muscle pain, and enhance bone fracture healing. Although LIPUS has been embraced within various medical disciplines, its integration into standard dental practices is still in its nascent stages, signifying an unexplored frontier with potentially transformative implications. Low-intensity pulsed ultrasound (LIPUS) has emerged as an attractive adjuvant therapy in various dental procedures, such as orthodontic treatment and maxillary sinus augmentation. Its appeal lies in its simplicity and non-invasive nature, positioning LIPUS as a promising avenue for clinical innovation. One particular area of interest is orthodontically induced inflammatory root resorption (OIIRR), an oftenunavoidable outcome of the orthodontic intervention, resulting in the permanent loss of root structure. Notably, OIIRR is the second most common form of root resorption (RR), surpassed only by root resorption related to pulpal infection. Given the high prevalence and potential long-term consequences of OIIRR, this literature review seeks to evaluate the efficacy of LIPUS as a therapeutic approach, with an emphasis on assessing its capacity to reduce the severity of OIIRR to a level of clinical significance. To conduct this systematic review, a comprehensive automated literature search was executed across multiple databases, including MEDLINE, Embase, PsycINFO, Web of Knowledge, Scopus, CINAHL, LILACS, SciELO, Cochrane, PubMed, trials registries, 3ie, and Google Scholar. Both forward and backward citation tracking was employed, encompassing studies published from database inception through January 2009 to April 2023. The review focused on randomized controlled trials (RCTs) that specifically evaluated the effects of low-intensity pulsed ultrasound therapy on orthodontically induced inflammatory root resorption (OIIRR), without restrictions of publication date. A stringent selection criterion was applied, and only studies demonstrating high levels of statistical significance were included. Ultimately, fourteen studies met the inclusion criteria and were subjected to further analysis. The overall quality of the included randomized controlled trials (RCTs) was rigorously assessed utilizing the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. This analysis revealed certain methodological limitations that posed challenges in drawing definitive conclusions from the available evidence. Despite these constraints, the review offers invaluable insights that can inform and guide future research. Specifically, it delineates recommendations for targeted populations, necessary interventions, appropriate outcome measures, suitable study designs, and essential infrastructure to facilitate further investigations. The synthesis of these insights aims to enhance the development and application of low-intensity pulsed ultrasound therapy within the field of dentistry, thereby contributing to improved patient outcomes.
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Affiliation(s)
- Sunil Kumar Vaddamanu
- Department of Dental Technology, College of Applied Medical Sciences, King Khalid University, Abha, 62529, Saudi Arabia.
| | - Fahad Hussain Alhamoudi
- Department of Dental Technology, College of Applied Medical Sciences, King Khalid University, Abha, 62529, Saudi Arabia
| | - Rajesh Vyas
- Department of Dental Technology, College of Applied Medical Sciences, King Khalid University, Abha, 62529, Saudi Arabia
| | - Vishwanath Gurumurthy
- Department of Dental Technology, College of Applied Medical Sciences, King Khalid University, Abha, 62529, Saudi Arabia
| | - Yulia Siurkel
- International European University School of Medicine, Akademika Hlushkova Ave, 42В, Kyiv, 03187, Ukraine.
| | - Marco Cicciù
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, Catania, 95123, Italy
| | - Giuseppe Minervini
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India.
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Caserta, 81100, Italy.
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Palanisamy P, Alam M, Li S, Chow SKH, Zheng Y. Low-Intensity Pulsed Ultrasound Stimulation for Bone Fractures Healing: A Review. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:547-563. [PMID: 33949710 PMCID: PMC9290611 DOI: 10.1002/jum.15738] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/04/2021] [Accepted: 04/18/2021] [Indexed: 05/17/2023]
Abstract
Low-intensity pulsed ultrasound (LIPUS) is a developing technology, which has been proven to improve fracture healing process with minimal thermal effects. This noninvasive treatment accelerates bone formation through various molecular, biological, and biomechanical interactions with tissues and cells. Although LIPUS treatment has shown beneficial effects on different bone fracture locations, only very few studies have examined its effects on deeper bones. This study provides an overview on therapeutic ultrasound for fractured bones, possible mechanisms of action, clinical evidences, current limitations, and its future prospects.
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Affiliation(s)
- Poornima Palanisamy
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHong KongS.A.RChina
| | - Monzurul Alam
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHong KongS.A.RChina
| | - Shuai Li
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHong KongS.A.RChina
| | - Simon K. H. Chow
- Department of Orthopaedics and TraumatologyThe Chinese University of Hong KongHong KongS.A.RChina
| | - Yong‐Ping Zheng
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHong KongS.A.RChina
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Uddin SMZ, Komatsu DE, Motyka T, Petterson S. Low-Intensity Continuous Ultrasound Therapies—A Systematic Review of Current State-of-the-Art and Future Perspectives. J Clin Med 2021; 10:2698. [PMID: 34207333 PMCID: PMC8235587 DOI: 10.3390/jcm10122698] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 01/02/2023] Open
Abstract
Therapeutic ultrasound has been studied for over seven decades for different medical applications. The versatility of ultrasound applications are highly dependent on the frequency, intensity, duration, duty cycle, power, wavelength, and form. In this review article, we will focus on low-intensity continuous ultrasound (LICUS). LICUS has been well-studied for numerous clinical disorders, including tissue regeneration, pain management, neuromodulation, thrombosis, and cancer treatment. PubMed and Google Scholar databases were used to conduct a comprehensive review of all research studying the application of LICUS in pre-clinical and clinical studies. The review includes articles that specify intensity and duty cycle (continuous). Any studies that did not identify these parameters or used high-intensity and pulsed ultrasound were not included in the review. The literature review shows the vast implication of LICUS in many medical fields at the pre-clinical and clinical levels. Its applications depend on variables such as frequency, intensity, duration, and type of medical disorder. Overall, these studies show that LICUS has significant promise, but conflicting data remain regarding the parameters used, and further studies are required to fully realize the potential benefits of LICUS.
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Affiliation(s)
- Sardar M. Z. Uddin
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY 11794, USA;
| | - David E. Komatsu
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY 11794, USA;
| | - Thomas Motyka
- Department of Osteopathic Manipulative Medicine, Campbell University, Buies Creek, NC 27506, USA;
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Hatefi S, Alizargar J, Le Roux F, Hatefi K, Etemadi Sh M, Davids H, Hsieh NC, Smith F, Abou-El-Hossein K. Review of physical stimulation techniques for assisting distraction osteogenesis in maxillofacial reconstruction applications. Med Eng Phys 2021; 91:28-38. [PMID: 34074463 DOI: 10.1016/j.medengphy.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 02/17/2021] [Accepted: 03/24/2021] [Indexed: 01/24/2023]
Abstract
Distraction Osteogenesis (DO) is an emerging limb lengthening method for the reconstruction of the hard tissue and the surrounding soft tissue, in different human body zones. DO plays an important role in treating bone defects in Maxillofacial Reconstruction Applications (MRA) due to reduced side effects and better formed bone tissue compared to conventional reconstruction methods i.e. autologous bone graft, and alloplast implantation. Recently, varying techniques have been evaluated to enhance the characteristics of the newly formed tissues and process parameters. Promising results have been shown in assisting DO treatments while benefiting bone formation mechanisms by using physical stimulation techniques, including photonic, electromagnetic, electrical, and mechanical stimulation technique. Using assisted DO techniques has provided superior results in the outcome of the DO procedure compared to a standard DO procedure. However, DO methods, as well as assisting technologies applied during the DO procedure, are still emerging. Studies and experiments on developed solutions related to this field have been limited to animal and clinical trials. In this review paper, recent advances in physical stimulation techniques and their effects on the outcome of the DO treatment in MRA are surveyed. By studying the effects of using assisting techniques during the DO treatment, enabling an ideal assisted DO technique in MRA can be possible. Although mentioned techniques have shown constructive effects during the DO procedure, there is still a need for more research and investigation to be done to fully understand the effects of assisting techniques and advanced technologies for use in an ultimate DO procedure in MRA.
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Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran.
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Nan-Chen Hsieh
- Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Farouk Smith
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
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Bone regeneration and mineralisation was promoted during distraction osteogenesis by human periostin gene in rabbit mandibular model. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2020; 121:506-511. [DOI: 10.1016/j.jormas.2019.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 12/27/2019] [Indexed: 01/28/2023]
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Rao M, Awasthi M. A review on interventions to prevent osteoporosis and improve fracture healing in osteoporotic patients. AIMS MEDICAL SCIENCE 2020. [DOI: 10.3934/medsci.2020015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Feng L, Liu X, Cao H, Qin L, Hou W, Wu L. A Comparison of 1- and 3.2-MHz Low-Intensity Pulsed Ultrasound on Osteogenesis on Porous Titanium Alloy Scaffolds: An In Vitro and In Vivo Study. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2019; 38:191-202. [PMID: 29781183 DOI: 10.1002/jum.14683] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 03/02/2018] [Accepted: 04/08/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVES Low-intensity pulsed ultrasound (LIPUS) combined with porous scaffolds can be used as a new therapy to treat bone defect repair. The aim of this study was to evaluate the effects of 1 and 3.2 MHz LIPUS on osteogenesis on porous Ti64 alloy scaffolds for both in vitro and in vivo studies. METHODS Scaffolds were randomly divided into the high-frequency ultrasound group, low-frequency ultrasound group, and control group. Mouse pre-osteoblast cells were cultured with porous Ti-6Al-4V scaffolds in vitro to evaluate cell proliferation and differentiation. In addition, scaffolds were implanted into rabbit mandibular defects in vivo. The effects of LIPUS on bone regeneration were evaluated by observing the micro-computed tomography (micro-CT), toluidine blue staining, and von Kossa staining. RESULTS The results revealed no significant difference in the cell counting kit-8 values between the ultrasound groups and control groups (P > .05). Compared with the control group, ultrasound promoted alkaline phosphatase activity and osteocalcin levels of the cells on the scaffolds (P < .05), but there was no significant difference between the two frequencies. In addition, histomorphologic analyses revealed that the volume and amount of new bone formation increased and that bone maturity improved in the ultrasound groups compared with the control group, but no significant difference was noted between the two frequencies. CONCLUSIONS Under the present experimental conditions, LIPUS promoted osteoblast differentiation and promoted bone maturity on porous Ti64 scaffolds. No significant differences were noted between the two frequencies.
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Affiliation(s)
- Lifang Feng
- Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
| | - Xiaohan Liu
- Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
| | - Hongjuan Cao
- Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
| | - Limei Qin
- Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
| | - Wentao Hou
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, China
| | - Lin Wu
- Department of Prosthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
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Lou S, Lv H, Li Z, Tang P, Wang Y. Effect of low-intensity pulsed ultrasound on distraction osteogenesis: a systematic review and meta-analysis of randomized controlled trials. J Orthop Surg Res 2018; 13:205. [PMID: 30119631 PMCID: PMC6098620 DOI: 10.1186/s13018-018-0907-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/05/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Low-intensity pulsed ultrasound (LIPUS) is a common adjunct used to promote bone healing for fresh fractures and non-unions, but its efficacy for bone distraction osteogenesis remains uncertain. This study aims to determine whether LIPUS can effectively and safely reduce the associated treatment time for patients undergoing distraction osteogenesis. METHODS MEDLINE, EMBASE, and the Cochrane Library were searched until May 1, 2018, without language restriction. Studies should be randomized controlled trials (RCTs) or quasi-RCTs of LIPUS compared with sham devices or no devices in patients who undergo distraction osteogenesis. The primary outcome was the treatment time. The secondary outcome was the risk of complications. Treatment effects were assessed using mean differences, standardized mean differences, or risk ratios using a random-effects model. The Cochrane risk-of-bias tool was used to assess the risk of bias. The I2 statistic was used to assess the heterogeneity. The GRADE system was used to evaluate the evidence quality. RESULTS A total of 7 trials with 172 patients were included. The pooled results suggested that during the process of distraction osteogenesis, LIPUS therapy did not show a statistically significant reduction in the treatment time (mean difference, - 8.75 days/cm; 95% CI, - 20.68 to 3.18 days/cm; P = 0.15; I2 = 72%) or in the risk of complications (risk ratio, 0.90 in favor of LIPUS; 95% CI, 0.65 to 1.24; I2 = 0%). Also, LIPUS therapy did not show a significant effect on the radiological gap fill area (standardized mean difference, 0.48 in favor of control; 95%CI, - 1.49 to 0.52; I2 = 0%), the histological gap fill length (standardized mean difference, 0.76 in favor of control; 95%CI, - 1.78 to 0.27; I2 = 0%), or the bone density increase (standardized mean difference, 0.43 in favor of LIPUS; 95%CI, - 0.02 to 0.88; I2 = 0%). CONCLUSIONS Among patients undergoing distraction osteogenesis, neither the treatment time nor the risk of complications could be reduced by LIPUS therapy. The currently available evidence is insufficient to support the routine use of this intervention in clinical practice. TRIAL REGISTRATION CRD 42017073596.
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Affiliation(s)
- Shenghan Lou
- Department of Spine Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Road, Harbin, 150001, Heilongjiang, People's Republic of China.,Department of Orthopedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Houchen Lv
- Department of Orthopedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Zhirui Li
- Department of Orthopedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Peifu Tang
- Department of Orthopedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China.
| | - Yansong Wang
- Department of Spine Surgery, The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Road, Harbin, 150001, Heilongjiang, People's Republic of China.
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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.
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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.
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Coskun ME, Coskun KA, Tutar Y. Determination of Optimum Operation Parameters for Low-Intensity Pulsed Ultrasound and Low-Level Laser Based Treatment to Induce Proliferation of Osteoblast and Fibroblast Cells. Photomed Laser Surg 2018; 36:246-252. [PMID: 29466082 DOI: 10.1089/pho.2017.4354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Mehmet Emre Coskun
- Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey
| | - Kubra Acikalin Coskun
- Department of Biochemistry, Faculty of Pharmacy, Cumhuriyet University, Sivas, Turkey
| | - Yusuf Tutar
- Department of Nutrition and Dietetics, Health Sciences Faculty, University of Health Sciences, Istanbul, Turkey
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Feres MFN, Kucharski C, Diar-Bakirly S, El-Bialy T. Effect of low-intensity pulsed ultrasound on the activity of osteoclasts: An in vitro study. Arch Oral Biol 2016; 70:73-78. [DOI: 10.1016/j.archoralbio.2016.06.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 04/16/2016] [Accepted: 06/07/2016] [Indexed: 01/24/2023]
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Li Y, Li R, Hu J, Song D, Jiang X, Zhu S. Recombinant human bone morphogenetic protein-2 suspended in fibrin glue enhances bone formation during distraction osteogenesis in rabbits. Arch Med Sci 2016; 12:494-501. [PMID: 27279839 PMCID: PMC4889683 DOI: 10.5114/aoms.2016.59922] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/16/2014] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Bone morphogenetic protein-2 (BMP-2) has high potential for bone formation, but its in vivo effects are unpredictable due to the short life time. This study was designed to evaluate the effects of recombinant human (rh) BMP-2 suspended in fibrin on bone formation during distraction osteogenesis (DO) in rabbits. MATERIAL AND METHODS The in vitro release kinetics of rhBMP-2 suspended in fibrin was tested using an enzyme-linked immunosorbent assay. Unilateral tibial lengthening for 10 mm was achieved in 48 rabbits. At the completion of osteodistraction, vehicle, fibrin, rhBMP-2 or rhBMP-2 suspended in fibrin (rhBMP-2 + fibrin) was injected into the center of the lengthened gap, with 12 animals in each group. Eight weeks later, the distracted callus was examined by histology, micro-CT and biomechanical testing. Radiographs of the distracted tibiae were taken at both 4 and 8 weeks after drug treatment. RESULTS It was found that fibrin prolonged the life span of rhBMP-2 in vitro with sustained release during 17 days. The rhBMP-2 + fibrin treated animals showed the best results in bone mineral density, bone volume fraction, cortical bone thickness by micro-CT evaluation and mechanical properties by the three-point bending test when compared to the other groups (p < 0.05). In histological images, rhBMP-2 + fibrin treatment showed increased callus formation and better gap bridging compared to the other groups. CONCLUSIONS The results of this study suggest that fibrin holds promise to be a good carrier of rhBMP-2, and rhBMP-2 suspended in fibrin showed a stronger promoting effect on bone formation during DO in rabbits.
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Affiliation(s)
- Yunfeng Li
- The State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, Sichuan University West China Hospital of Stomatology, Chengdu, China
| | - Rui Li
- Department of Stomatology, The General Hospital of People's Liberation Army, Beijing, China
| | - Jing Hu
- The State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, Sichuan University West China Hospital of Stomatology, Chengdu, China
| | - Donghui Song
- The State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, Sichuan University West China Hospital of Stomatology, Chengdu, China
| | - Xiaowen Jiang
- The State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, Sichuan University West China Hospital of Stomatology, Chengdu, China
| | - Songsong Zhu
- The State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, Sichuan University West China Hospital of Stomatology, Chengdu, China
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Raza H, Saltaji H, Kaur H, Flores-Mir C, El-Bialy T. Effect of Low-Intensity Pulsed Ultrasound on Distraction Osteogenesis Treatment Time: A Meta-analysis of Randomized Clinical Trials. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2016; 35:349-358. [PMID: 26782167 DOI: 10.7863/ultra.15.02043] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 06/06/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES The objectives of this systematic review with a meta-analysis were to critically analyze the available scientific literature regarding the effects of low-intensity pulsed ultrasound (US) on stimulating bone regeneration and bone maturation during distraction osteogenesis in humans and to determine whether the stimulatory effect of low-intensity pulsed US can effectively reduce the associated treatment time. METHODS Studies were considered for inclusion if they were randomized clinical trials that examined the effect of low-intensity pulsed US on distraction osteogenesis compared to conventional distraction osteogenesis. The primary outcome was reduced treatment time. Study selection, risk of bias assessment, and data extraction were performed in duplicate. A random-effects meta-analysis model was used when more than 3 trials were eligible for a quantitative analysis and considering the expected differences in interventions and measurement tools. RESULTS Five randomized clinical trials, with a moderate to high risk of bias, met the eligibility criteria. Four trials examining tibial distraction osteogenesis in 118 patients were combined in a meta-analysis. A statistically significant difference for reduced treatment time between distraction osteogenesis with low-intensity pulsed US and standard distraction osteogenesis was evident (mean difference, -15.236 d/cm; random-effects 95% confidence interval, -19.902 to -10.569 d/cm; P < .0001). As for the mandible, only 1 clinical trial was available, which showed no significant effect of low-intensity pulsed US therapy on distraction osteogenesis. CONCLUSIONS Current available evidence suggests that low-intensity pulsed US therapy may provide a reduction in the overall treatment time for tibial distraction osteogenesis. However, this conclusion should be considered with caution, given the moderate to high risk of bias in the included randomized clinical trials.
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Affiliation(s)
- Hasnain Raza
- School of Dentistry (H.R., H.K.), Orthodontic Graduate Program, School of Dentistry (H.S.), and Division of Orthodontics, School of Dentistry (C.F.-M., T.E.-B.), University of Alberta, Edmonton, Alberta, Canada.
| | - Humam Saltaji
- School of Dentistry (H.R., H.K.), Orthodontic Graduate Program, School of Dentistry (H.S.), and Division of Orthodontics, School of Dentistry (C.F.-M., T.E.-B.), University of Alberta, Edmonton, Alberta, Canada
| | - Harmanpreet Kaur
- School of Dentistry (H.R., H.K.), Orthodontic Graduate Program, School of Dentistry (H.S.), and Division of Orthodontics, School of Dentistry (C.F.-M., T.E.-B.), University of Alberta, Edmonton, Alberta, Canada
| | - Carlos Flores-Mir
- School of Dentistry (H.R., H.K.), Orthodontic Graduate Program, School of Dentistry (H.S.), and Division of Orthodontics, School of Dentistry (C.F.-M., T.E.-B.), University of Alberta, Edmonton, Alberta, Canada
| | - Tarek El-Bialy
- School of Dentistry (H.R., H.K.), Orthodontic Graduate Program, School of Dentistry (H.S.), and Division of Orthodontics, School of Dentistry (C.F.-M., T.E.-B.), University of Alberta, Edmonton, Alberta, Canada
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Woods DC, Bolton JS, Rhoads JF. On the use of evanescent plane waves for low-frequency energy transmission across material interfaces. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2015; 138:2062-2078. [PMID: 26520290 DOI: 10.1121/1.4929692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The transmission of airborne sound into high-impedance media is of interest in several applications. For example, sonic booms in the atmosphere may impact marine life when incident on the ocean surface, or affect the integrity of existing structures when incident on the ground. Transmission across high impedance-difference interfaces is generally limited by reflection and refraction at the surface, and by the critical angle criterion. However, spatially decaying incident waves, i.e., inhomogeneous or evanescent plane waves, may transmit energy above the critical angle, unlike homogeneous plane waves. The introduction of a decaying component to the incident trace wavenumber creates a nonzero propagating component of the transmitted normal wavenumber, so energy can be transmitted across the interface. A model of evanescent plane waves and their transmission across fluid-fluid and fluid-solid interfaces is developed here. Results are presented for both air-water and air-solid interfaces. The effects of the incident wave parameters (including the frequency, decay rate, and incidence angle) and the interfacial properties are investigated. Conditions for which there is no reflection at the air-solid interface, due to impedance matching between the incident and transmitted waves, are also considered and are found to yield substantial transmission increases over homogeneous incident waves.
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Affiliation(s)
- Daniel C Woods
- School of Mechanical Engineering, Ray W. Herrick Laboratories, and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
| | - J Stuart Bolton
- School of Mechanical Engineering, Ray W. Herrick Laboratories, and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
| | - Jeffrey F Rhoads
- School of Mechanical Engineering, Ray W. Herrick Laboratories, and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
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15
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Low-intensity pulsed ultrasound in dentofacial tissue engineering. Ann Biomed Eng 2015; 43:871-86. [PMID: 25672801 DOI: 10.1007/s10439-015-1274-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/04/2015] [Indexed: 02/04/2023]
Abstract
Oral and maxillofacial diseases affect millions of people worldwide and hence tissue engineering can be considered an interesting and clinically relevant approach to regenerate orofacial tissues after being affected by different diseases. Among several innovations for tissue regeneration, low-intensity pulsed ultrasound (LIPUS) has been used extensively in medicine as a therapeutic, operative, and diagnostic tool. LIPUS is accepted to promote bone fracture repair and regeneration. Furthermore, the effect of LIPUS on soft tissues regeneration has been paid much attention, and many studies have performed to evaluate the potential use of LIPUS to tissue engineering soft tissues. The present article provides an overview about the status of LIPUS stimulation as a tool to be used to enhance regeneration/tissue engineering. This review consists of five parts. Part 1 is a brief introduction of the acoustic description of LIPUS and mechanical action. In Part 2, biological problems in dentofacial tissue engineering are proposed. Part 3 explores biologic mechanisms of LIPUS to cells and tissues in living body. In Part 4, the effectiveness of LIPUS on cell metabolism and tissue regeneration in dentistry are summarized. Finally, Part 5 relates the possibility of clinical application of LIPUS in orthodontics. The present review brings out better understanding of the bioeffect of LIPUS therapy on orofacial tissues which is essential to the successful integration of management remedies for tissue regeneration/engineering. To develop an evidence-based approach to clinical management and treatment of orofacial degenerative diseases using LIPUS, we would like to be in full pursuit of LIPUS biotherapy. Still, there are many challenges for this relatively new strategy, but the up to date achievements using it promises to go far beyond the present possibilities.
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Bronoosh P, Tanideh N, Noorafshan A, Andisheh Tadbir A, Aalipanah M, Kamali F, Abbasnia K, Koohi-Hosseinabadi O. Effects of low-intensity pulsed ultrasound on healing of mandibular bone defects: an experimental study in rabbits. Int J Oral Maxillofac Surg 2015; 44:277-84. [DOI: 10.1016/j.ijom.2014.09.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/06/2014] [Accepted: 09/17/2014] [Indexed: 11/26/2022]
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Jiang X, Chen Y, Lu K, Zhang H, Fan X. GYY4137 promotes bone formation in a rabbit distraction osteogenesis model: a preliminary report. J Oral Maxillofac Surg 2014; 73:732.e1-6. [PMID: 25661504 DOI: 10.1016/j.joms.2014.11.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 11/11/2014] [Accepted: 11/14/2014] [Indexed: 01/30/2023]
Abstract
PURPOSE Hydrogen sulfide (H2S) has been shown to enhance bone formation, but its osteogenic effect is unclarified during distraction osteogenesis (DO). This study tested the hypothesis that H2S could promote bone formation in a rabbit mandibular DO model. MATERIALS AND METHODS Unilateral mandibular lengthening was achieved in 26 rabbits. During the distraction and the first week of consolidation, saline 0.2 mL or saline 0.2 mL and GYY4137 (H2S donor, 50 mg/kg) was injected intravenously twice a day. Distracted mandibles were examined by dual-energy x-ray absorptiometry, histology, computed tomography, and a 3-point bending test 8 weeks after distraction. RESULTS The GYY4137-treated animals presented a greater response as measured by bone mineral density and mechanical properties and a more mature microstructure of the lengthened mandibles compared with the saline-treated control animals. CONCLUSION The results of this study suggest that H2S can accelerate osteogenesis during DO.
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Affiliation(s)
- Xiaowen Jiang
- Associate Professor, Department of Stomatology, First People's Hospital of Chenzhou and Institute of Translation Medicine, University of South China, Chenzhou, Hunan, China.
| | - Yanzhe Chen
- Resident, Department of Stomatology, First People's Hospital of Chenzhou, University of South China, Chenzhou, Hunan, China
| | - Kun Lu
- Resident, Department of Stomatology, First People's Hospital of Chenzhou, University of South China, Chenzhou, Hunan, China
| | - Hao Zhang
- Resident, Department of Stomatology, First People's Hospital of Chenzhou, University of South China, Chenzhou, Hunan, China
| | - Xiaosheng Fan
- Resident, Institute of Translation Medicine, University of South China, Chenzhou, Hunan, China
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Nam KW, Seo DY, Kim MH. Pulsed and Continuous Ultrasound Increase Chondrogenesis through the Increase of Heat Shock Protein 70 Expression in Rat Articular Cartilage. J Phys Ther Sci 2014; 26:647-50. [PMID: 24926124 PMCID: PMC4047224 DOI: 10.1589/jpts.26.647] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 11/25/2013] [Indexed: 12/30/2022] Open
Abstract
[Purpose] The present study was aimed to investigate the effects of pulsed and
continuous ultrasound (US) irradiation on heat shock protein (HSP) 70 and mRNA levels of
chondrogenesis-related gene expression in rat tibial articular cartilage. [Subjects and
Methods] Forty-eight rats with body weights of 200−250 g were randomly divided into three
groups. In the control (CON) group, three rats were treated with sham sonication. The
pulsed US irradiation group was irradiated with a pulse rate of 20%, a frequency of 1 MHz,
and an intensity of 1.5 W/cm2 for 10 minutes. The continuous US irradiation
group was continuously with a frequency of 1 MHz and an intensity of 1.5 W/cm2
for 10 minutes. Immunohistochemistry for evaluation of HSP 70 and RT-PCR for expression of
the chondrogenesis-related mRNA were used. [Results] The expression of HSP70 protein was
increased in the pulsed and continuous US groups. The increase in the continuous US group
was more prominent than in the pulsed US group. In addition, pulsed and continuous US
irradiation increased the expression of Mustn1 and Sox9. [Conclusion] The results of this
study show that US increases chondrogenesis via the increase of HSP 70 and
chondrogenesis-related mRNA expressions in rat articular cartilage.
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Affiliation(s)
- Ki Won Nam
- Department of Physical Therapy, College of Health and Welfare, Dongshin University, Republic of Korea
| | - Dong Yel Seo
- Department of Physical Therapy, Graduate School of Dongshin University, Republic of Korea
| | - Min Hee Kim
- Department of Physical Therapy, College of Health Science, Eulji University, Republic of Korea
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Effect of nonviral plasmid delivered basic fibroblast growth factor and low intensity pulsed ultrasound on mandibular condylar growth: a preliminary study. BIOMED RESEARCH INTERNATIONAL 2014; 2014:426710. [PMID: 24967367 PMCID: PMC4055166 DOI: 10.1155/2014/426710] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/14/2014] [Accepted: 04/10/2014] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Basic fibroblast growth factor (bFGF) is an important regulator of tissue growth. Previous studies have shown that low intensity pulsed ultrasound (LIPUS) stimulates bone growth. The objective of this study was to evaluate the possible synergetic effect of LIPUS and local injection of nonviral bFGF plasmid DNA (pDNA) on mandibular growth in rats. DESIGN Groups were control, blank pDNA, bFGF pDNA, LIPUS, and bFGF pDNA + LIPUS. Treatments were performed for 28 days. Significant increase was observed in mandibular height and condylar length in LIPUS groups. MicroCT analysis showed significant increase in bone volume fraction in bFGF pDNA + LIPUS group. Histomorphometric analysis showed increased cell count and condylar proliferative and hypertrophic layers widths in bFGF pDNA group. RESULTS Current study showed increased mandibular condylar growth in either bFGF pDNA or LIPUS groups compared to the combined group that showed only increased bone volume fraction. CONCLUSION It appears that there is an additive effect of bFGF + LIPUS on the mandibular growth.
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Alkaisi A, Ismail AR, Mutum SS, Ahmad ZAR, Masudi S, Abd Razak NH. Transplantation of human dental pulp stem cells: enhance bone consolidation in mandibular distraction osteogenesis. J Oral Maxillofac Surg 2013; 71:1758.e1-13. [PMID: 24040948 DOI: 10.1016/j.joms.2013.05.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 05/14/2013] [Accepted: 05/16/2013] [Indexed: 01/08/2023]
Abstract
PURPOSE The main aim of the present study was to evaluate the capacity of stem cells from human exfoliated deciduous teeth (SHED) to enhance mandibular distraction osteogenesis (DO) in rabbits. MATERIALS AND METHODS A randomized controlled trial was conducted. Eighteen skeletally immature New Zealand white rabbits were divided into 2 groups, with 9 in the control group and 9 in the SHED group. The SHED were isolated, expanded, and characterized. Six million cells were transplanted into the distracted area during the osteotomy period. After a 4-day latency period, a total of 6 mm was distracted for 6 days. The newly formed bone was analyzed radiologically, histologically, and histomorphometrically at 2, 4, and 6 weeks postoperatively. Nonparametric analysis of variance (Kruskal-Wallis test) was used for data analysis, and P < .05 was considered statistically significant. RESULTS The cell lineage was positive for the 2 mesenchymal stem cell markers tested (CD105 and CD166). More mature bone in the SHED transplanted group was observed radiographically and histologically. Histomorphologically, the percentage of newly formed bone after 2, 4, and 6 weeks was 18.41% and 41.53%, 31.68% and 59.78%, and 52.34% and 65.24% in the control and SHED groups, respectively. The difference between the groups was statistically significant (P = .012). The bone union and stage of bone maturity scores were significantly different between the control and SHED groups (P = .006 and P = .011, respectively). CONCLUSIONS Our findings suggest that SHED can serve as an additional cell resource for DO enhancement in rabbits and might be a promising model for the reconstruction of large mandibular defects in human oral maxillofacial surgery.
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Affiliation(s)
- Amera Alkaisi
- Lectural, PhD Student, Universiti Sains Malaysia; Lectural in University of Anbar, College of Dentistry; Oral and Maxillofacial Department, Alramady, Iraq.
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Hong P, Boyd D, Beyea SD, Bezuhly M. Enhancement of bone consolidation in mandibular distraction osteogenesis: A contemporary review of experimental studies involving adjuvant therapies. J Plast Reconstr Aesthet Surg 2013; 66:883-95. [DOI: 10.1016/j.bjps.2013.03.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 02/14/2013] [Accepted: 03/16/2013] [Indexed: 11/28/2022]
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Rai S, Kaur M, Goel S, Panjwani S, Singh S. Prospective utility of therapeutic ultrasound in dentistry-Review with recent comprehensive update. Adv Biomed Res 2012; 1:47. [PMID: 23326778 PMCID: PMC3544127 DOI: 10.4103/2277-9175.100153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/28/2012] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The utility of ultrasound (US) for therapeutic purposes is still in its infancy. Therapeutic US (TUS) has been used widely in medical field for urological application, surgical intervention, bone healing, and osteointegration in cancer and healing of full thickness excised skin lesions, and within dentistry as a prediagnostic, diagnostic and therapeutic purpose. The purpose of the paper is to review and determine the efficacy of US as one of the treatment modalities for its role in maxillofacial region to reduce pain and promote soft tissue healing. MATERIALS AND METHODS A Medline search included of the international literature published between 1976 and 2011 and was restricted to English language articles, published work of past researchers including in vitro and in vivo studies, recent additions of textbooks on surgical and therapeutic applications of US and, current articles in conference papers and reports accessed from the internet using Google search engine on therapeutic ultrasound. RESULTS Very few article regarding effect of therapeutic of US for its use of insonation for treatment of patient with pain and soft tissue injury are available. This review article mainly emphasizes the therapeutic utility of US in dentistry for its effectiveness to decrease joint stiffness, reduce pain and muscle spasms and improve muscle mobility. In vivo studies have shown very little clinical effects. CONCLUSIONS Further research is warranted in this clinically important area to make the development of noninvasive, multifunctional ultrasound devices for repair, regeneration and other therapeutic utility a success.
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Affiliation(s)
- Shalu Rai
- Department of Oral Medicine and Radiology, Institute of Dental Studies and Technologies, Kadrabad, Modinagar, (U.P.), India
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Borsje MA, Ren Y, de Haan-Visser HW, Kuijer R. Comparison of low-intensity pulsed ultrasound and pulsed electromagnetic field treatments on OPG and RANKL expression in human osteoblast-like cells. Angle Orthod 2010; 80:498-503. [PMID: 20050743 PMCID: PMC8985733 DOI: 10.2319/060809-318.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2009] [Accepted: 09/01/2009] [Indexed: 01/21/2024] Open
Abstract
OBJECTIVE To compare two clinically applied treatments to stimulate bone healing-low-intensity pulsed ultrasound (LIPUS) and pulsed electromagnetic field (PEMF)-for their effects on RANKL and OPG expression in osteoblast-like cells in vitro. MATERIALS AND METHODS LIPUS or PEMF was applied to Saos-2 cells for 10 minutes or 3 hours. RANKL and OPG expressions were analyzed at 0, 4, 8, or 12 hours after treatment with real-time PCR. Secreted protein levels in culture supernatant were analyzed at the same posttreatment time points using specific ELISA assays. RESULTS Neither LIPUS nor PEMF had an effect on RANKL protein expression. OPG protein was significantly increased by LIPUS after 0 and 4 hours (brief short-term effect) and was increased almost 2.5-fold by PEMF after 8 hours. The mRNA levels of OPG and RANKL were hardly affected by LIPUS treatment at any time point. PEMF induced a fivefold increase in RANKL mRNA expression at t = 0. A brief PEMF treatment of 10 minutes resulted in downregulation of RANKL expression after 0 and 4 hours and upregulation at 12 hours. OPG mRNA was downregulated after 8 hours. CONCLUSION The effects of LIPUS or PEMF expression on OPG and RANKL are limited. From our experiments, it seems that LIPUS treatment resulted in a quick protein response, while the response of cells to PEMF (3 hours) was delayed. The increase in OPG protein at 8 hours post PEMF treatment is indicative of reduction of osteolysis.
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Affiliation(s)
- Manon A Borsje
- Department of Orthodontics, University Medical Centre Groningen, University of Groningen, The Netherlands
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Ding Y, Li G, Zhang X, Ao J, Liu W, Ma Q, Liu Y, Liu B. Effect of Low-Intensity Pulsed Ultrasound on Bone Formation During Mandible Distraction Osteogenesis in a Canine Model—A Preliminary Study. J Oral Maxillofac Surg 2009; 67:2431-9. [DOI: 10.1016/j.joms.2009.05.441] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Revised: 04/06/2009] [Accepted: 05/07/2009] [Indexed: 10/20/2022]
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Anabolic effects of low-intensity pulsed ultrasound on human gingival fibroblasts. Arch Oral Biol 2009; 54:743-8. [PMID: 19493525 DOI: 10.1016/j.archoralbio.2009.04.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 04/15/2009] [Accepted: 04/25/2009] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Low-intensity pulsed ultrasound (LIPUS) demonstrated anabolic effects on cementoblasts, odontoblasts, and periodontal ligament cells. However, LIPUS effect on human gingival fibroblasts (HGF) remains to be investigated. Therefore, we evaluated the in vitro effects of LIPUS on HGF proliferation and differentiation to test its feasibility for periodontal therapy. DESIGN LIPUS treatment (1.5MHz, 30mW/cm(2)) was applied to HGF in the experimental groups after 24-h of culture (5 or 10min/day for 28 days) and omitted in the control. Changes in HGF activities were evaluated in response to LIPUS treatment in dose-dependent (5 and 10min) and time-dependent (weeks 1-4) manner. The effects of LIPUS on HGF cell viability (MTT), proliferation (total DNA content and growth pattern), alkaline phosphatase (ALP) activity, and gene expression by reverse-transcriptase polymerase chain reaction (RT-PCR) were determined. RESULTS Cell viability remained unchanged after LIPUS treatment during the 4 weeks of treatment as compared to the untreated control group which ensured a safe biological response. Both LIPUS treatments (5-10min/day) did not yield any significant changes in the proliferation, and expression of proliferating cell nuclear antigen (PCNA) and collagen-I (COL-I). Conversely, LIPUS treatment enhanced osteogenic differentiation potential of HGF as determined by significant up-regulation of specific ALP activity and osteopontin (OPN) expression, with optimum effect following 3 weeks of 5min/day LIPUS treatment. CONCLUSION LIPUS treatment at 30mW/cm(2) selectively enhanced HGF differentiation but not proliferation. The ability of LIPUS to enhance HGF differentiation is promising for its application in cell-based periodontal therapy.
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Erdogan O, Esen E. Biological aspects and clinical importance of ultrasound therapy in bone healing. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2009; 28:765-776. [PMID: 19470817 DOI: 10.7863/jum.2009.28.6.765] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVES The purpose of this study was to review past and recent literature findings regarding the effects of ultrasound therapy on bone healing and its clinical efficacy in medical and dental interventions. METHODS A literature review was conducted on the effects of ultrasound therapy on bone healing. The studies regarding clinical applications in long bones and maxillofacial bones were evaluated separately from each other. RESULTS The effects of therapeutic ultrasound on bone healing have been studied for half a century. Numerous clinical and experimental studies have addressed this relationship, and many of them have shown positive correlations. Although several theories have been proposed to explain the mechanism of action, the exact mechanism has not been fully understood. CONCLUSIONS Therapeutic ultrasound therapy in clinical settings is a noninvasive application and has no serious complications or side effects. It may be an acceptable treatment of choice in many types of clinical procedures involving maxillofacial bones.
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Affiliation(s)
- Ozgür Erdogan
- Department of Dental Services, Diyarbakir Military Hospital, Diyarbakir, Turkey.
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