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Table 2 Summary of included studies

From: Effectiveness of low-level laser therapy on recovery from neurosensory disturbance after sagittal split ramus osteotomy: a systematic review and meta-analysis

First author/year Design Treatment/control group Split-mouth design Mean age (years) control/treatment Type of surgery Follow-up period after surgery (month) Follow-up period after LLLT (month) Wavelength (nm) Energy (J) /energy density (J/cm2) Power (mw) Period of application (sec per point) Total number of LLLT sessions Days of LLLT (post-operation)
Treatment side/control side
Führer-Valdivia 2014 [17] DB-RCT 16/14   21.5 (8)/23 (5) BSSRO 6 5 810 ± 20 9/32 100 90 8 1, 2, 3, 5, 10, 14, 21, 28
Gasperini 2014 [18] DB-RCT   10/10 30/30 BSSRO 2 1 660-789-780 1.2/5 20-60-70 10-20-40 14 0, 1, 2, 3, +10 days with 48 h intervalª
Mohajerani 2017 [33] DB-RCT 10/10   22.8 ± 3.6/24.1 ± 4.6 BSSRO 6 5 810-632 −/5
−/2
  90 6 1, 2, 3, 7, 14, 28
Eshghpour 2017 [13] DB-RCT   16/16 23.1 ± 4.4/23.1 ± 4.4 BSSRO 2 1 660-810 2/1.5
2/7
200 10 9 1, 2, 3, +6 days in 3 weeks
Guarini 2017 [19] DB-RCT 33/9   29.8 (24)/25.8 (22) BSSRO 24 23 810 ± 20 9/31.8 100   8 1, 2, 3, 5, 10, 14, 21, 28
Buysse Temprano 2017 [31] SB-RCT   12/12 30 /30 BSSRO 1 0 808 2.8/100 100 28 10   
Esmaeelinejad 2018 [32] DB-RCT 20/20   27.35 ± 3.35/25.7 ± 4.06 BSSRO 13 12 810 −/8.4 70 60 10 0, 1, 2, 3, +6 days in 2 weeksª
Sharifi 2020 [34] TB-RCT   18/18 23 ± 5/23 ± 5 BSSRO 2 1 980 −/12 100 60 7 −1, 1, 3, 7, 14, 21, 28ª
  1. DB-RCT Double-blind randomized controlled trial, SB-RCT Single-blind randomized controlled trial, TB-RCT Triple-blind randomized controlled trial, BSSRO Bilateral sagittal split ramus osteotomy, LLLT Low-level laser therapy, a: 0 = immediately after surgery, −1: a day before surgery