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Bezerra MCSM, Habib FAL, Soares LGP, Vitale MC, Pinheiro ALB. Comparative analysis of Laser and LED phototherapies pain control after insertion of elastomeric separators in orthodontics patients: Clinical trial. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 233:112486. [PMID: 35749950 DOI: 10.1016/j.jphotobiol.2022.112486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/31/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to evaluate the effectiveness of pain modulation following Laser or LED phototherapies during the process of tooth separation. This was a longitudinal randomized controlled clinical trial in four observational times carried out in 60 patients (15 males, 45 females, average 24.1 years old) who were randomly divided into three groups: G1 (LED, AsGaAl, λ850 ± 10 nm, 150 mW, 17 J/cm2, 57 s per session), G2 (Laser, AsGaAl, λ780 nm, 70 mW, 20.0 J/cm2, 240 s per session) and G3 (Non-irradiated Control). All patients were submitted to tooth separation using elastomeric separators. The pain level was measured by using a visual analogue scale (VAS) immediately after insertion (T1) of the elastic, at 48 (T2), 96 (T3) hours and 6 days (T4). It was observed an increase of the pain on the Control group from T1 to T2, with statistical significance. Pain levels in the LED and Laser groups were always significantly lower (<0.001), except for T1. According with the results of the present study it may be concluded that, either LED or Laser phototherapies, were effective in reducing the pain level after dental separation process when compared to the control group.
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Affiliation(s)
- M C S M Bezerra
- Prof. José Martins Soares Édimo Center for Orthodontics and Dentofacial Orthopedics of the School of Dentistry, Federal University of Bahia - UFBA, Av. Araújo Pinho, 62, Canela, Salvador, BA CEP: 40110-150, Brazil.
| | - F A L Habib
- Prof. José Martins Soares Édimo Center for Orthodontics and Dentofacial Orthopedics of the School of Dentistry, Federal University of Bahia - UFBA, Av. Araújo Pinho, 62, Canela, Salvador, BA CEP: 40110-150, Brazil.
| | - L G P Soares
- Prof. José Martins Soares Édimo Center for Orthodontics and Dentofacial Orthopedics of the School of Dentistry, Federal University of Bahia - UFBA, Av. Araújo Pinho, 62, Canela, Salvador, BA CEP: 40110-150, Brazil; Center of Biophotonics, School of Dentistry, Federal University of Bahia - UFBA, Av. Araújo Pinho, 62, Canela, Salvador, BA CEP: 40110-150, Brazil.
| | - M C Vitale
- Department of Paediatric Dentistry, Faculty of Dentistry, University of Pavia, 2, Piazzale Golgi, 27100 Pavia, Italy.
| | - A L B Pinheiro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia - UFBA, Av. Araújo Pinho, 62, Canela, Salvador, BA CEP: 40110-150, Brazil.
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Karabel MA, Doğru M, Doğru A, Karadede Mİ, Tuncer MC. Evaluation of the effects of diode laser application on experimental orthodontic tooth movements in rats. Histopathological analysis. Acta Cir Bras 2021; 35:e351204. [PMID: 33503217 PMCID: PMC7819686 DOI: 10.1590/acb351204] [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: 08/12/2020] [Accepted: 11/11/2020] [Indexed: 11/22/2022] Open
Abstract
Purpose: To evaluate the effect of diode laser use on experimental orthodontic tooth movements. Methods: Thirty Rattus norvegicus albinus Wistar were divided into three equal groups (n = 10), two experimentals and one control. Applying 20 g orthodontic force were attached to the maxillary incisors of the rats in all groups. Low dose laser was applied to the surrounding tissues of the maxillary incisors of the rats in the experimental groups. Two exposure times for laser irradiation were used for seven days: t = 12 min (energy dose = 72 J) and t = 9 min (energy dose = 54 J) by a 0.1 W DEKA brand diode laser with wavelength of 980 nm. Results: Osteoclastic activation increased in the 72 J group when compared to control group and decreased in comparison to the 54 J group. Osteoblastic activation was decreased in the 72 J group when compared to the control group and increased in comparison to the 54 J group. Conclusions: Applying 54 J laser energy has been found effective to accelerate the orthodontic tooth movement.
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Pereira SCDC, Avila FEA, Pinzan A, Lima LM, Storniolo-Souza JM, Janson G. Low Intensity Laser Influence on Orthodontic Movement: A Randomized Clinical and Radiographic Trial. JOURNAL OF INDIAN ORTHODONTIC SOCIETY 2020. [DOI: 10.1177/0301574220924962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction: Finding a method to decrease orthodontic treatment time has been a concern for several authors. This study evaluated, clinically and radiographically, the influence of low-level laser therapy on the rate of orthodontic movement and dental tissue integrity. Methods: The sample included 11 individuals with class I malocclusion, requiring extraction of 4 first premolars. Gallium aluminum arsenide diode laser with a wavelength of 780 nm was used once a month during retraction mechanics, to irradiate the maxillary and mandibular canines on one side and compare them with the nonirradiated contralateral side, after spring activation, until canine retraction was completed. This was followed by movement measurement. Periapical radiographs were used to check for possible modifications in the supporting tissues and root surface of the displaced canines. Results: No differences in the rate of tooth movement were found between the irradiated and nonirradiated side on both dental arches. There was no resorption of the root and/or alveolar bone crest, maintaining the integrity of these tissues. Conclusions: Low-level laser therapy did not promote an increment on the rate of tooth movement and did not cause greater root and alveolar bone crest resorption than on the nonirradiated side with the used protocol.
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Affiliation(s)
| | | | - Arnaldo Pinzan
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | - Ludmila M. Lima
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
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Cifter M, Celikel ADG, Cifter ED, Tagrikulu B, Olgaç V, Erdem MA, Cankaya AB. Comparison of the efficiency of alveolar decortication and low level laser therapy on orthodontic tooth movement and alveolar metabolism in rats. J Dent Sci 2019; 14:401-407. [PMID: 31890129 PMCID: PMC6921127 DOI: 10.1016/j.jds.2019.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/07/2019] [Indexed: 11/22/2022] Open
Abstract
Background/purpose Reducing orthodontic treatment duration has many advantages for both clinicians and patients. This study was designed to compare the effects of alveolar decortication and low level laser therapy methods on tooth movement rate and alveolar bone metabolism. Materials and methods A total of 42 Wistar albino rats were divided into three main groups as: Alveolar decortication (AD), low level laser therapy (LLLT) and only orthodontic force (F). The groups were evaluated at 7 and 14 day time points. Tooth movement rates were calculated by measuring the space between the contact points of the first and second molars. Comparisons regarding the alveolar bone metabolism were accomplished by evaluating osteoclast counts and RANKL - OPG expressions. Results The rate of tooth movement, at all time points, was significantly higher for the AD group than the other groups and was significantly higher in the LLLT group than the F group. At both time points, the RANKL and OPG expression in the AD group was significantly higher than the other groups and these parameters in the LLLT group was significantly higher than the F group. The osteoclast count values in the AD and LLLT groups were significantly higher than the F group and there were no significant differences between these two groups at all time points. Conclusion This study shows that, to be more effective at AD, both AD and LLLT therapy significantly increases the level of tooth movement in the early period through their stimulating effects on the alveolar bone metabolism.
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Affiliation(s)
- Muhsin Cifter
- Department of Orthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkey
| | | | - Ebru Demet Cifter
- Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkey
| | - Beyza Tagrikulu
- Department of Orthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkey
| | - Vakur Olgaç
- Institute of Oncology, Istanbul University Department of Tumor Pathology and Oncological Cytology, Istanbul, Turkey
| | - Mehmet Ali Erdem
- Department of Oral Surgery, Istanbul University Faculty of Dentistry, Istanbul, Turkey
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Friedrichsdorf SP, Chavez VEA, Bradaschia-Correa V, Cattaneo PM, Dominguez GC. Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement. Braz Dent J 2019; 30:410-416. [PMID: 31340233 DOI: 10.1590/0103-6440201902416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/25/2019] [Indexed: 01/13/2023] Open
Abstract
The present study aimed to analyze the effect of LED phototherapy on the presence of hyalinization and root resorption during orthodontic tooth movement (OTM) in rats and to measure the amount of tooth movement. Eighty rats were allocated into two groups: LED and control (CON), where the LED rats were irradiated with infrared LED (850 nm, 30 mW) for 5 min during the first five days of OTM and where controls were not irradiated. Both groups were subdivided into four subgroups (n=10) according to the date of euthanasia (4, 7, 14 and 21 days). Five out of ten LED21 and five of ten CON21 rats were submitted to micro-computed tomography (μCT); μCT scans were taken on days 0, 7, 14 and 21. For histological study, maxillae were processed to light microscopy using Hematoxylin-Eosin (HE) and Tartrate-Resistant Acid Phosphatase (TRAP) histochemistry. The amount of tooth movement did not differ between LED and CON. Hyalinization was observed at the pressure areas in both groups, and it did not show a statistically significant difference between the groups. Root resorption was also observed in both groups after 7 days and it did not represent any differences between the two groups. LED phototherapy was not able to increase the amount of OTM. Similar characteristics of hyalinization and root resorption were observed in both groups.
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Affiliation(s)
- Simone Peixe Friedrichsdorf
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | - Victor Elias Arana Chavez
- Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | - Vivian Bradaschia-Correa
- Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | | | - Gladys Cristina Dominguez
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
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GOMES MF, GOULART MDGV, GIANNASI LC, HIRAOKA CM, MELO GDFS, ZANGARO RA, NÓBREGA CJP, SALGADO MAC. Effects of the photobiomodulation using different energy densities on the periodontal tissues under orthodontic force in rats with type 2 diabetes mellitus. Braz Oral Res 2018; 32:e61. [DOI: 10.1590/1807-3107bor-2018.vol32.0061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/14/2018] [Indexed: 01/15/2023] Open
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Hsu LF, Tsai MH, Shih AHY, Chen YC, Chang BE, Chen YJ, Yao CCJ. 970 nm low-level laser affects bone metabolism in orthodontic tooth movement. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 186:41-50. [DOI: 10.1016/j.jphotobiol.2018.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/21/2018] [Accepted: 05/07/2018] [Indexed: 10/28/2022]
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Clinical study on the efficacy of LED phototherapy for pain control in an orthodontic procedure. Lasers Med Sci 2018; 34:479-485. [DOI: 10.1007/s10103-018-2617-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 08/14/2018] [Indexed: 01/06/2023]
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9
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Vasconcelos EC, Henriques JFC, Sousa MVS, de Oliveira RC, Consolaro A, Pinzan A, Henriques FP, Bronfman AN. Low-Level Laser Action on Orthodontically Induced Root Resorption: Histological and Histomorphometric Evaluation. J Lasers Med Sci 2017; 7:146-151. [PMID: 28144433 DOI: 10.15171/jlms.2016.25] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Introduction: Studies have been conducted to develop a means of preventing, controlling or reducing orthodontically induced root resorption. Phototherapy has demonstrated effectiveness as an anti-inflammatory and, considering the inflammatory origin of this pathology, this study evaluated the effects of laser on root resorption. Methods: The research was conducted among 54 80-day-old male Wistar rats, with weights of 280 ± 40 g. Phototherapy consisted of a diode laser (Ga-Al-As), calibrated with a wavelength of 808 nm, an output power of 100 mW, 2.1 J or 96 J of energy and area of 0.0028 cm2. The application was continuous, punctual and with contact. The left first maxillary molar was moved by a super-elastic closed spring with a pre-calibrated and constant force of 25 g. The specimens were irradiated every 48 hours, totaling three or six times, depending on the group to which they belonged. Euthanasia was made in the 7th or 10th day after the onset of movement. The histological and histomorphometric examination was performed with sections of 6 μm stained with hematoxylin and eosin (H&E). Results: Considering the dosimetry studied, when compared the subgroups with the same time of movement, 7 or 10 days, the low-level laser (LLL) has no statistically significant effect on the root resorption. As expected, differences were found between groups with different time of movement. Conclusion: Based on the result, this dosimetry does not seem to be clinically recommended to avoid or reduce inflammatory root resorption, but it also does not induce any root surface alteration.
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Affiliation(s)
| | | | | | | | | | - Arnaldo Pinzan
- Bauru Dental School, University of São Paulo, Bauru - SP, Brazil
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10
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Rosa CB, Habib FAL, de Araújo TM, Dos Santos JN, Cangussu MCT, Barbosa AFS, de Castro ICV, Pinheiro ALB. Laser and LED phototherapy on midpalatal suture after rapid maxilla expansion: Raman and histological analysis. Lasers Med Sci 2016; 32:263-274. [PMID: 27885521 DOI: 10.1007/s10103-016-2108-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 11/14/2016] [Indexed: 11/27/2022]
Abstract
The aim of this study was to analyze the effect of laser or LED phototherapy on the acceleration of bone formation at the midpalatal suture after rapid maxilla expansion. Forty-five rats were divided into groups at 7 days (control, expansion, expansion and laser irradiation, and expansion and LED irradiation) and into 14 days (expansion, expansion and laser in the 1st week, expansion and LED in the 1st week, expansion and laser in the 1st and 2nd weeks, expansion and LED in the 1st and 2nd weeks). Laser/LED irradiation occurred every 48 h. Expansion was accomplished with a spatula and maintained with a triple helicoid of 0.020-in stainless steel orthodontic wire. A diode laser (λ780 nm, 70 mW, spot of 0.04 cm2, t = 257 s, SAEF of 18 J/cm2) or a LED (λ850 ± 10 nm, 150 ± 10 mW, spot of 0.5 cm2, t = 120 s, SAEF of 18 J/cm2) was applied in one point in the midpalatal suture immediately behind the upper incisors. Raman spectroscopy and histological analyses of the suture region were carried and data was submitted to statistical analyses (p ≤ 0.05). Raman spectrum analysis demonstrated that irradiation increases hydroxyapatite in the midpalatal suture after expansion. In the histological analysis of various inflammation, there was a higher production of collagen and osteoblastic activity and less osteoclastic activity. The results showed that LED irradiation associated to rapid maxillary expansion improves bone repair and could be an alternative to the use of laser in accelerating bone formation in the midpalatal suture.
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Affiliation(s)
- Cristiane Becher Rosa
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Fernando Antonio Lima Habib
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Telma Martins de Araújo
- Orthodontics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Jean Nunes Dos Santos
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Maria Cristina T Cangussu
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Artur Felipe Santos Barbosa
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Isabele Cardoso Vieira de Castro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil
| | - Antônio Luiz Barbosa Pinheiro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62, Canela, Salvador, BA, CEP 40110-150, Brazil.
- National Institute of Optics and Photonics, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, 13560-970, Brazil.
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Three consecutive days of application of LED therapy is necessary to inhibit experimentally induced root resorption in rats: a microtomographic study. Lasers Med Sci 2016; 32:181-187. [DOI: 10.1007/s10103-016-2100-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 10/17/2016] [Indexed: 02/07/2023]
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12
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Gonçalves CF, Desiderá ADC, do Nascimento GC, Issa JPM, Leite-Panissi CRA. Experimental tooth movement and photobiomodulation on bone remodeling in rats. Lasers Med Sci 2016; 31:1883-1890. [DOI: 10.1007/s10103-016-2064-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/22/2016] [Indexed: 11/29/2022]
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13
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Salehi P, Heidari S, Tanideh N, Torkan S. Effect of low-level laser irradiation on the rate and short-term stability of rotational tooth movement in dogs. Am J Orthod Dentofacial Orthop 2015; 147:578-86. [DOI: 10.1016/j.ajodo.2014.12.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 12/01/2014] [Accepted: 12/01/2014] [Indexed: 11/26/2022]
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Milward MR, Holder MJ, Palin WM, Hadis MA, Carroll JD, Cooper PR. Low level light therapy (LLLT) for the treatment and management of dental and oral diseases. ACTA ACUST UNITED AC 2014. [DOI: 10.12968/denu.2014.41.9.763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michael R Milward
- Senior Lecturer/Honorary Consultant in Periodontology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - Michelle J Holder
- Research Technician in Oral Biology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - William M Palin
- Reader in Biomaterials, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - Mohammed A Hadis
- Research Fellow in Biomaterials, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - James D Carroll
- Founder/CEO at THOR Photomedicine Ltd, 18A East Street, Chesham, HP5 1HQ
| | - Paul R Cooper
- Professor of Oral Biology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham, B4 6NN, UK
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Accelerated orthodontic tooth movement: Molecular mechanisms. Am J Orthod Dentofacial Orthop 2014; 146:620-32. [DOI: 10.1016/j.ajodo.2014.07.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 07/01/2014] [Accepted: 07/01/2014] [Indexed: 12/22/2022]
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Consolaro A. Effects of medications and laser on induced tooth movement and associated root resorption: four key points. Dental Press J Orthod 2014; 18:4-7. [PMID: 23916427 DOI: 10.1590/s2176-94512013000200003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The following four fundamental points on the use of experimental models will be described to ensure an accurate evaluation of the effects of medication and laser therapy on induced tooth movement and associated root resorption: (1) If the objective is to check the effect on root resorption, the forces experimentally applied must produce a lesion on the cementoblast layer in all specimens; (2) If the objective is to optimize induced tooth movement and reduce treatment time without side effects, the forces experimentally applied should not produce a lesion in the cementoblast layer in any specimen; (3) The laser therapy operator, the person administering medication and the person that places appliances should not know which animals will effectively receive the test treatment, and the control groups should receive placebo treatments; (4) CT and microscopic analysis of the specimens should be random, and the group to which the specimen belongs should not be identified, to ensure that the person reading images and the pathologists are not influenced in their evaluation of phenomena. These measures will ensure that results are more reliable and easier to extrapolate to orthodontic clinical practice.
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Effect of Frequent Application of Low-Level Laser Therapy on Corticotomized Tooth Movement in Dogs: A Pilot Study. J Oral Maxillofac Surg 2014; 72:1182.e1-12. [DOI: 10.1016/j.joms.2014.02.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 02/14/2014] [Accepted: 02/14/2014] [Indexed: 11/17/2022]
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Carvalho-Lobato P, Garcia VJ, Kasem K, Ustrell-Torrent JM, Tallón-Walton V, Manzanares-Céspedes MC. Tooth Movement in Orthodontic Treatment with Low-Level Laser Therapy: A Systematic Review of Human and Animal Studies. Photomed Laser Surg 2014; 32:302-9. [DOI: 10.1089/pho.2012.3439] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | - Khaled Kasem
- Odontostomatology Department, HUBc, University of Barcelona, Barcelona, Spain
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Carroll JD, Milward MR, Cooper PR, Hadis M, Palin WM. Developments in low level light therapy (LLLT) for dentistry. Dent Mater 2014; 30:465-75. [PMID: 24656472 DOI: 10.1016/j.dental.2014.02.006] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 02/12/2014] [Accepted: 02/12/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Low level light/laser therapy (LLLT) is the direct application of light to stimulate cell responses (photobiomodulation) in order to promote tissue healing, reduce inflammation and induce analgesia. There have been significant studies demonstrating its application and efficacy at many sites within the body and for treatment of a range of musculoskeletal injuries, degenerative diseases and dysfunction, however, its use on oral tissues has, to date, been limited. The purpose of this review is to consider the potential for LLLT in dental and oral applications by providing background information on its mechanism of action and delivery parameters and by drawing parallels with its treatment use in analogous cells and tissues from other sites of the body. METHODS A literature search on Medline was performed on laser and light treatments in a range of dental/orofacial applications from 2010 to March 2013. The search results were filtered for LLLT relevance. The clinical papers were then arranged to eight broad dental/orofacial categories and reviewed. RESULTS The initial search returned 2778 results, when filtered this was reduced to 153. 41 were review papers or editorials, 65 clinical and 47 laboratory studies. Of all the publications, 130 reported a positive effect in terms of pain relief, fast healing or other improvement in symptoms or appearance and 23 reported inconclusive or negative outcomes. Direct application of light as a therapeutic intervention within the oral cavity (rather than photodynamic therapies, which utilize photosensitizing solutions) has thus far received minimal attention. Data from the limited studies that have been performed which relate to the oral cavity indicate that LLLT may be a reliable, safe and novel approach to treating a range of oral and dental disorders and in particular for those which there is an unmet clinical need. SIGNIFICANCE The potential benefits of LLLT that have been demonstrated in many healthcare fields and include improved healing, reduced inflammation and pain control, which suggest considerable potential for its use in oral tissues.
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Affiliation(s)
- James D Carroll
- THOR Photomedicine Ltd., 18A East Street, Chesham HP5 1HQ, UK
| | | | | | - Mohammed Hadis
- Biomaterials, University of Birmingham, School of Dentistry, St Chads Queensway, Birmingham B4 6NN, UK
| | - William M Palin
- Biomaterials, University of Birmingham, School of Dentistry, St Chads Queensway, Birmingham B4 6NN, UK.
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Chang CC, Ku CH, Hsu WC, Hu YA, Shyu JF, Chang ST. Five-day, low-level laser therapy for sports-related lower extremity periostitis in adult men: a randomized, controlled trial. Lasers Med Sci 2014; 29:1485-94. [PMID: 24622816 DOI: 10.1007/s10103-014-1554-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 02/20/2014] [Indexed: 11/24/2022]
Abstract
Periostitis in the lower leg caused by overexercise is a universal problem in athletes and runners. The purpose of this study was to observe the functional improvement of the lower limbs upon rehabilitation low-level laser therapy (LLLT). All medical data were gathered from enrolled adults with sports-related lower leg pain. A total of 54 patients underwent triple-phase bone scans using skeletal nuclear scintigraphy, which confirmed periostitis in their lower limbs. The patients were then randomly divided into two groups: one group received laser therapy (N = 29) and the other group (N = 25) received an equivalent placebo treatment (a drug or physical therapy). Treatment protocol commenced with rehabilitation intervention and LLLT was performed three times daily for 5 days at a dosage of 1.4 J/cm(2). A Likert-type pain scale was used to evaluate the severity of pain. Balance function, including postural stability testing (PST) and limits of stability (LOS), was also performed to evaluate the function outcome. Patients experienced a significant improvement in pain by day 2 or day 5 after starting LLLT, but here was no significant difference in pain scale between the measurements before (baseline) and after LLLT. Comparing the PST, the group differences of dynamic vs. static testings ranged from -18.54 to -50.22 (compared 12, 8, 4, 3, 2, 1 to 0, all p < 0.0001), and the PST after LLLT were 3.73 units (p = 0.0258) lower than those of before LLLT. Comparing the LOS, the group differences of dynamic vs. static testing were similar to those in PST, and the relationship between LOS and groups only varied with the direction control during dynamic testing in direction at backward/right vs. right (p < 0.0001). LLLT had a positive effect on proprioception in patients with lower limb periostitis. Larger, better controlled studies are needed to determine what specific effects LLLT has on the function of proprioception.
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Affiliation(s)
- Cheng-Chiang Chang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
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The effects of diode laser (660 nm) on the rate of tooth movements: an animal study. Lasers Med Sci 2013; 30:713-8. [DOI: 10.1007/s10103-013-1407-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 07/22/2013] [Indexed: 10/26/2022]
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Effect of low level laser therapy on dental pulp during orthodontic movement. World J Methodol 2013; 3:19-26. [PMID: 25237620 PMCID: PMC4145565 DOI: 10.5662/wjm.v3.i2.19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/04/2013] [Accepted: 06/12/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To validate the protocol described here to be used in future clinical trials related to the effect of laser therapy on dental pulp.
METHODS: Histologically treated samples from eight human healthy premolar teeth obtained from the middle root level were distributed in four groups: group 1 (G1) absolute control; group 2 (G2) only laser irradiation; group 3 (G3) exposed only to orthodontics; and group 4 (G4) treated with orthodontics and laser. Laser treatment was performed at 830 nm wavelength, 100 mW (energy 80 J/cm2, 2.2 J), for 22 s in the vestibular surface and 22 s in the palatal surface, 1 mm away from the dental root mucosa. Three staining methods were performed: hematoxylin-eosin (HE), Masson’s Trichrome method and Gomori’s method.
RESULTS: The pulp histology parameters were evaluated and the results classified in to 3 parts: an inflammatory response, soft tissue response (dental pulp) and hard tissue response (dentin and predentin). There was no inflammation (chronic or acute) in any of the evaluated groups. The zones of pulp necrosis were found in one premolar of G3 and in one of G4; in groups G2 and G4 there was higher angiogenesis than in the other two groups. G4 group presented the highest level of vascularization. A reduced nerve density was observed in G3. A G2 specimen showed increased nerve density. A higher rate of calcification was observed in G1 compared to G2. Denticles, either real or false, were observed in G1, G2 and G3. Sclerosis of dentin and focal dentin loss was observed among all the groups. Secondary dentin was present in one sample in G1 and G2. A necrosis zone was found in one sample of G3 and G4. No differences between groups were observed in the odontoblast irregularity layer but the layer was wider in the group treated with laser only. A notable difference was detected in reduction of the cell-free layer between the groups G1 and G4. The findings in pulp tissue favor its adaptative response against dental movement induced by orthodontics. No definitive conclusions may be derived as this is a pilot study.
CONCLUSION: The protocol described here was shown to be an effective method to evaluate changes in dental pulp submitted to low level laser in teeth under orthodontic movement.
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Effect of the laser and light-emitting diode (LED) phototherapy on midpalatal suture bone formation after rapid maxilla expansion: a Raman spectroscopy analysis. Lasers Med Sci 2013; 29:859-67. [DOI: 10.1007/s10103-013-1284-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 02/07/2013] [Indexed: 10/27/2022]
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Duan J, Na Y, Liu Y, Zhang Y. Effects of the pulse frequency of low-level laser therapy on the tooth movement speed of rat molars. Photomed Laser Surg 2012; 30:663-7. [PMID: 23025701 DOI: 10.1089/pho.2012.3220] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE The purpose of this study was to compare the speed of the orthodontic tooth movement of rat molars under continuous wave (CW) and pulsed wave (PW) low-level laser therapy (LLLT). BACKGROUND DATA It remains unclear whether LLLT can increase the speed of tooth movement, and no consensus has been established regarding the appropriate parameters and experimental design of LLLT. MATERIALS AND METHODS Orthodontic movement was induced in 40 rats with 10g coil springs. Rats were randomly assigned to five groups. In Group I, the maxillary left first molars were irradiated with CW by a gallium aluminum arsenide (GaAlAs) diode laser source (830 nm, 180 mW, 3.6 J/cm(2), and 0.9 W/cm(2) for 4 sec at three locations for 3 consecutive days). In Groups II, III, and IV, animals were irradiated with PW at 2, 4, and 8 Hz, respectively (50% duty cycle, average power of 90 mW, 3.6 J/cm(2), and 0.45 W/cm(2) for 8 sec at three locations for 3 consecutive days). Group V served as the control (no irradiation). The movement distance was measured on days 3, 7, and 14. RESULTS Although there were no significant differences among the irradiation groups, significant differences were found between the control and irradiation groups starting from day 3. CONCLUSIONS The CW and PW treatments both led to faster orthodontic tooth movement compared with the control group.
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Affiliation(s)
- Jiaohong Duan
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
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Caccianiga G, Stanizzi A, Zorzella P, Crestale C, Denotti D, Squarzoni N. Laser Biostimulation and Self Ligating Appliances in Orthodontics: Periodontal Remodeling. EUR J INFLAMM 2012. [DOI: 10.1177/1721727x120100s211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
24 patients are selected and 30 teeth in vestibular mucosae, without keratinized gingiva. No active periodontal disease (no BOP and gingival recessions). No BOP and CAL loss at the start of the orthodontic treatment. Every patient was treated with self ligating appliances (Time2/Time3, American Orthodontics). In every orthodontic session (each 30 days as average) the patient was treated with Nd: Yag laser biostimulation, for 90 seconds, with 320 micron fiber section, on utilizing the Biostimulating machine paremeters. No termical effects were produced by lasers applications. At the moment of debonding, 30 teeth involved in the research were evaluated in terms of quality and quantity of attached gingiva. BOP and CAL loss were also investigated. Every tooth considerated, at the end of orthodontic treatment showed a attached gingiva around the crown: the average of keratinized gingiva at the end of the study was 2,7 mm and the mean increasing at each month was 0,45 mm. The combination between self ligating appliances and laser's biostimulation could improve the differentiation of periodontal ligaments stem cells in fibroblasts, able to promote attached gingiva around the crown of the teeth erupted in oral vestibular mucosae.
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Affiliation(s)
- G. Caccianiga
- University of Milano-Bicocca, Department of Neurosciences, Dental Clinic Milano, Italy
| | - A. Stanizzi
- University of Milano-Bicocca, Department of Neurosciences, Dental Clinic Milano, Italy
| | - P. Zorzella
- University of Milano-Bicocca, Department of Neurosciences, Dental Clinic Milano, Italy
| | - C. Crestale
- University of Milano-Bicocca, Department of Neurosciences, Dental Clinic Milano, Italy
| | - D. Denotti
- Department of Surgery and Odontostomatologic Science, University of Cagliari, Cagliari, Italy
| | - N. Squarzoni
- University of Milano-Bicocca, Department of Neurosciences, Dental Clinic Milano, Italy
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Habib FAL, Gama SKC, Ramalho LMP, Cangussú MCT, dos Santos Neto FP, Lacerda JA, de Araújo TM, Pinheiro ALB. Effect of Laser Phototherapy on the Hyalinization Following Orthodontic Tooth Movement in Rats. Photomed Laser Surg 2012; 30:179-85. [DOI: 10.1089/pho.2011.3085] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Fernando A. L. Habib
- Centro de Ortodontia e Ortopedia Facial Prof. José Édimo Soares Martins, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Sabrina K. C. Gama
- Centro de Ortodontia e Ortopedia Facial Prof. José Édimo Soares Martins, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Luciana M. P. Ramalho
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Maria Cristina T. Cangussú
- Oral Epidemiology and Pediatric Dentistry, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | | | - Juliana A. Lacerda
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Telma M. de Araújo
- Centro de Ortodontia e Ortopedia Facial Prof. José Édimo Soares Martins, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
| | - Antônio L. B. Pinheiro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia (UFBA), Salvador, BA, Brazil
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