Low-level laser therapy for pain caused by placement of the first orthodontic archwire: A randomized clinical trial

Tortamano, André; Lenzi, Daniele Calovini; Haddad, Antônio; Bottino, Marco C.; Dominguez, Gladys Cristina; Vigorito, Júlio Wilson

doi:10.1016/j.ajodo.2008.06.028

Cited by 132 publications

(157 citation statements)

References 16 publications

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“…Estudos demonstram ainda que a utilização da terapia LED de baixa potência pode ser eficiente para prevenção da geração de cáries, com efeito bactericida, alívio da dor na cicatrização [21][22][23] e reparação óssea 24,25 , demonstrando a versatilidade da aplicação do LED. Além disso, abre novas perspectivas para futuros estudos de associação, pois a sua aplicação parece apresentar efeitos benéficos para a tendinite.…”

Section: Discussionunclassified

Estudo morfométrico da terapia LED de baixa potência em tendinite de ratos

2011

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A terapia LED de baixa potência possui efeitos analgésico e antiinflamatório. O objetivo desse estudo foi analisar a ação da terapia com LED de baixa potência na reparação tendínea por meio de histologia e histomorfometria. Foram usados 25 ratos Wistar, de 220 a 250 g, divididos em três grupos experimentais avaliados no 7º e 14º dia: A, tendinite induzida sem tratamento; B, tendinite induzida tratada com LED de baixa potência, densidade de energia 4 J/cm² por 120 segundos; e C, sem indução de tendinite. A histomorfometria mostrou-se altamente significativa (p<0,001) na terapia com LED em contrarrelógio de 14 dias, comparada ao grupo saudável (C). Entretanto, não mostrou significância levando em conta o grupo tendinite (A14), em que valor p>0,05. As análises histológica e histomorfométrica demonstraram qualitativo e quantitativo aumento no número de fibroblastos aos sete dias de tratamento, e das fibras colágenas, aos 14 dias, para grupo tratado com LED de baixa potência em relação ao grupo sadio (C). O mesmo não foi percebido quando relacionado ao grupo tendinite (A14).

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Section: Discussionunclassified

Estudo morfométrico da terapia LED de baixa potência em tendinite de ratos

2011

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“…1 Among all methods studied to accelerate induced dental movement and consequently decrease orthodontic treatment time, low-level laser is minimally invasive, extremely simple, safe, and fast to apply. 2 In spite of these advantages, studies on low-level laser have shown contradictory findings.…”

Section: Introductionmentioning

confidence: 99%

Influence of low-level laser on bone remodeling during induced tooth movement in rats

Cossetin

Janson

Carvalho

et al. 2013

The Angle Orthodontist

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Objective: To analyze the effect of low-level laser on bone remodeling during induced tooth movement in rats. Materials and Methods: A diode laser (808 nm, 100 mW, 54 J on an area of 0.0028 cm 2 ) was used. The application was continuous, punctual, and with contact. Forty-two 70-day-old Wistar rats had the maxillary left first molar moved using a force level of 25 g. In two experimental subgroups the movement was performed over 7 days and in three subgroups the movement occurred over 14 days. In the 7-day movement subgroups, one subgroup received laser irradiation on day 1 only; the other subgroup received laser irradiation on days 1, 3, and 5. In the 14-day movement subgroups, one subgroup received laser irradiation on day 1 only; the second on days 1, 3, and 5; and the third on days 1, 3, 5, 7, 9, 11, and 13. The control group was also divided into two subgroups, and movement occurred over two different periods of treatment (7 days and 14 days) without laser application; these were used as controls for the respective experimental subgroups. Inter-subgroup comparison was performed with Kruskal-Wallis, followed by Mann-Whitney and analysis of variance, followed by Tukey tests within the 7-and 14-day subgroups. Results: The subgroup with three laser applications showed significantly greater osteoclastic activity and bone resorption than the other subgroups in the 7-day movement subgroups. Conclusions: Low-level laser application significantly increased the osteoclastic but not the osteoblastic activity during the initial phases of tooth movement. In addition, the osteoclastic activity was dose-dependent.

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“…To find alternatives for pain relief, researchers have looked for other new, but safer approaches, such as low-level laser therapy (LLLT). [8][9][10][11][12] LLLT is a new internationally accepted designation and is defined as laser treatment in which the energy output is low enough so as not to cause a rise in the temperature of the treated tissue above 36.5uC or normal body temperature. 13 Because of its lower energy output and intensity, its effects are mainly nonthermal and biostimulatory.…”

Section: Introductionmentioning

confidence: 99%

Interventions for pain during fixed orthodontic appliance therapy

Li¹,

唐寅²,

Chen³

2010

The Angle Orthodontist

105

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Objective: To compare the different methods of pain control intervention during fixed orthodontic appliance therapy. Materials and Methods: A computerized literature search was performed in MEDLINE , The Cochrane Library (Issue 4, 2009), EMBASE (1984), and CNKI (1994) to collect randomized controlled trials (RCTs) for pain reduction during orthodontic treatment. Data were independently extracted by two reviewers and a quality assessment was carried out. The Cochrane Collaboration's RevMan5 software was used for data analysis. The Cochrane Oral Health Group's statistical guidelines were followed. Results: Twenty-six RCTs were identified and six trials including 388 subjects were included. Meta-analysis showed that ibuprofen had a pain control effect at 6 hours and at 24 hours after archwire placement compared with the placebo group. The standard mean difference was 20.47 and 20.48, respectively. There was no difference in pain control between ibuprofen, acetaminophen, and aspirin. Other analgesics such as tenoxicam and valdecoxib had relatively lower visual analog scale (VAS) scores in pain perception. Low-level laser therapy (LLLT) was also an effective approach for pain relief with VAS scores of 3.30 in the LLLT group and 7.25 in the control group. Conclusions: Analgesics are still the main treatment modality to reduce orthodontic pain despite their side effects. Some long-acting nonsteroidal anti-inflammatory drugs (NSAIDs) and cyclooxygenase enzyme (COX-2) inhibitors are recommended for their comparatively lesser side effects. Their preemptive use is promising. Other approaches such as LLLT have aroused researchers' attention. (Angle Orthod. 2010;80:925-932.)

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Low-level laser therapy for pain caused by placement of the first orthodontic archwire: A randomized clinical trial

Cited by 132 publications

References 16 publications

Estudo morfométrico da terapia LED de baixa potência em tendinite de ratos

Estudo morfométrico da terapia LED de baixa potência em tendinite de ratos

Influence of low-level laser on bone remodeling during induced tooth movement in rats

Interventions for pain during fixed orthodontic appliance therapy

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