Tooth Movement in Orthodontic Treatment with Low-Level Laser Therapy: A Systematic Review of Human and Animal Studies

2014 ◽  
Vol 32 (5) ◽  
pp. 302-309 ◽  
Author(s):  
Patricia Carvalho-Lobato ◽  
Valentin Javier Garcia ◽  
Khaled Kasem ◽  
Josep Maria Ustrell-Torrent ◽  
Victòria Tallón-Walton ◽  
...  
Author(s):  
Alain Manuel Alain Manuel Chaple Gil ◽  
Eduardo Fernández ◽  
Lisandra Quintana Muñoz

Introduction: according to scientific literature, does low-power laser promote acceleration of tooth movements during orthodontic treatment? Objective: to systematize the ability of the low-power laser to accelerate tooth movements during orthodontic treatment. Material and methods: a systematic review was carried out, a search using Boolean search engines on the PubMed platform. The keywords used for were: orthodontic movement, orthodontic tooth movement, orthodontic, orthodontic treatment, low level laser therapy, low level laser, laser therapy and the combination between them. The included investigations dealt with the issue of acceleration of tooth movement during orthodontic treatment using low-power laser, were from journals indexed in PubMed, clinical trials, in English, and corresponded to articles published since 2000 to date. Assessment of risk of bias was performed. The variables analyzed were: main author, title, year, type of article, journal, country of research, and whether the articles show that low-power laser increases tooth movement during orthodontic treatment. Results: 60% of the included studies conclude that the low-power laser accelerates tooth movement during orthodontic treatment, 30% of these did not find significant changes in relation to the groups studied with those of control and 10% resulted in dubious conclusions. Conclusions: although the results are encouraging due to the trend in which the low-power laser does accelerate orthodontic movements, the presence of a higher number of randomized clinical studies would be necessary for a specific clarification of the benefits that this therapy brings to the patient. sector.


2020 ◽  
Author(s):  
Zhiyi Shan ◽  
Ka Wai Frank Wong ◽  
Colman McGrath ◽  
Min Gu ◽  
Yanqi Yang

Abstract Background: Low-level laser therapy (LLLT) has been verified effective in tooth-movement acceleration and pain alleviation during active orthodontic treatment, but its function remains inconclusive post-treatment. This systematic review aims to evaluate the effects of LLLT as an adjunct retention regimen following active orthodontic tooth movement (OTM).Methods: This review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Six databases (Cochrane Central Register of Controlled Trials, MEDLINE, Embase, Pubmed, Scopus, ProQuest) were comprehensively searched for human and animal studies published till December 2019 and screened according to our eligibility criteria. The risk of bias was assessed based on the Cochrane Handbook for Systematic Reviews of Interventions and Systematic Review Center for Laboratory Experiment Tool. Two independent reviewers performed all procedures in duplicate. Any disagreement was resolved by discussion or consultation with a third reviewer.Results: A total of 394 records were identified from the initial search. Following screening, 15 full-text articles were reviewed for eligibility (ĸ>0.90), and ultimately, eight studies (three human studies and five animal studies) were included in this review. The key outcomes considered were ‘preventing tooth relapse’ and ‘rehabilitating root resorption’. Two controlled clinical trials (CCTs) and one animal study supported the preventive effects of LLLT on the relapse of post-orthodontic tooth positions. In contrast, two animal studies reported opposing findings. Regarding the rehabilitation of root resorption, evidence supported the reparative potential of LLLT in orthodontic force-induced root resorption. Overall, there was a high risk of bias among studies, except for one randomised controlled trial. Due to the substantial heterogeneity among studies in terms of their types, participants, designs, LLLT settings and variables of interest, it was not feasible to conduct a meta-analysis; therefore, a qualitative synthesis is presented.Conclusion: The quality of evidence for LLLT contributing to the maintenance of orthodontic outcomes or a better treatment prognosis remains low. There is considerable controversy over the effects of LLLT on orthodontic relapse. However, the use of LLLT after OTM has promising reparative effects for root resorption and is generally recommended.


2020 ◽  
Author(s):  
Zhiyi Shan ◽  
Ka Wai Frank Wong ◽  
Colman McGrath ◽  
Min Gu ◽  
Yanqi Yang

Abstract The authors have withdrawn this preprint due to author disagreement.


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