OBJECTIVE: To analyze the effect of low-level laser therapy (LLLT) on perception of pain after separator placement and compare it with perceptions of control and placebo groups using a frequent irradiation protocol. MATERIALS AND METHODS: Eighty-eight patients were randomly allocated to a laser group, a light-emitting diode (LED) placebo group, or a control group. Elastomeric separators were placed on the first molars. In the laser and LED groups, first molars were irradiated for 30 seconds every 12 hours for 1 week using a portable device. Pain was marked on a visual analog scale at predetermined intervals. Repeated measure analysis of variance was performed for statistical analysis. RESULTS: The pain scores of the laser group were significantly lower than those of the control group up to 1 day. The pain scores in the LED group were not significantly different from those of the laser group during the first 6 hours. After that point, the pain scores of the LED group were not significantly different from those of the control. CONCLUSIONS: Frequent LLLT decreased the perception of pain to a nonsignificant level throughout the week after separator placement, compared with pain perception in the placebo and control groups. Therefore, LLLT might be an effective method of reducing orthodontic pain.
OBJECTIVE: To analyze the effect of low-level laser therapy (LLLT) on perception of pain after separator placement and compare it with perceptions of control and placebo groups using a frequent irradiation protocol. MATERIALS AND METHODS: Eighty-eight patients were randomly allocated to a laser group, a light-emitting diode (LED) placebo group, or a control group. Elastomeric separators were placed on the first molars. In the laser and LED groups, first molars were irradiated for 30 seconds every 12 hours for 1 week using a portable device. Pain was marked on a visual analog scale at predetermined intervals. Repeated measure analysis of variance was performed for statistical analysis. RESULTS: The pain scores of the laser group were significantly lower than those of the control group up to 1 day. The pain scores in the LED group were not significantly different from those of the laser group during the first 6 hours. After that point, the pain scores of the LED group were not significantly different from those of the control. CONCLUSIONS: Frequent LLLT decreased the perception of pain to a nonsignificant level throughout the week after separator placement, compared with pain perception in the placebo and control groups. Therefore, LLLT might be an effective method of reducing orthodontic pain.
Authors: M K Bernhardt; K A Southard; K D Batterson; H L Logan; K A Baker; J R Jakobsen Journal: Am J Orthod Dentofacial Orthop Date: 2001-07 Impact factor: 2.650
Authors: Luda Diatchenko; Gary D Slade; Andrea G Nackley; Konakporn Bhalang; Asgeir Sigurdsson; Inna Belfer; David Goldman; Ke Xu; Svetlana A Shabalina; Dmitry Shagin; Mitchell B Max; Sergei S Makarov; William Maixner Journal: Hum Mol Genet Date: 2004-11-10 Impact factor: 6.150
Authors: I Z Figueira; A P C Sousa; A W Machado; F A L Habib; L G P Soares; A L B Pinheiro Journal: Lasers Med Sci Date: 2018-08-18 Impact factor: 3.161