Effect of LED Phototherapy on the Rate of Orthodontic Tooth Movement

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Effect of LED Phototherapy on the Rate of Orthodontic Tooth Movement ( effect-led-phototherapy-rate-orthodontic-tooth-movement )

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26 (Table 3.1). However, in 4 arches the remaining extraction space was anticipated to completely close prior to the next orthodontic adjustment appointment (T2) and was therefore excluded from subsequent measurements. Therefore, 13 dental arches were included for the time period from T1 to T2. The duration of time between the first (T1) and second (T2) orthodontic adjustment appointment into space closure was 5.49 weeks with a range of 3-7 weeks (Table 3.1). 3.3 Compliance with the use of the LED Appliance Consistent with a split-mouth design, the LED was applied to only one side of the dental arch during space closure. In 8 cases it was applied to the right side and in 7 cases it was applied to the left side. Values generated by the LED device corresponded (100%) with manual records of the patients. The degree of compliance was 78.04% of the prescribed time with a range of 25.8-92.9% from T0 to T1 (LED compliance reported as days, Table 3.1). This compliance rate equated to an average of 30.29 (S.E.M. = 2.13) days of LED use, with a range of 9-40 days. LED use during the second experimental period (T1-T2) was similar, with a compliance of 82.35% (range 61.9-100%) resulting in an average of 32.54 (S.E.M. = 1.94) days of LED application with a range of 19-48 days (Figure 3.1) 3.4 Measurement and Analysis of Space Closure Space closure was assessed at 3 time points: prior to space closure (T0), the 1st appointment into space closure (T1) and a subsequent (2nd) appointment into space closure (T2). The reliability of the recorded data from each of the two raters revealed that the inter-rater and

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