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Table 2 Characteristics of included studies

From: Does low level laser therapy relieve the pain caused by the placement of the orthodontic separators? ----a meta-analysis

Study ID Country Design Number (P/L)a Average age Separators
Celestino No´brega 2013 Brazil RCT 60 (30/30) 17.5 3 M Unitek
Won Tae Kim 2012 Korea RCT 58 (30/28) 21.52 Dentalastics Separators, Dentaurum,Ispringen, Germany,2.1 mm
Ladan Eslamian 2013 Iran CCT (split mouth design) 37 (37/37) 24.97 Dentarum, Springen, Germany
Esper MA 2011 Brazil RCT 38 (38/12) 23.4 Morelli, 4.0 mm, Ø 5/32"
Ida Marini 2013 Italy RCT 80 (40/40) 23.0875 NRb
Zhang HY 2014 China RCT 60 (30/30) 15.9 NR
  1. a:P = placebo group; L = LLLT group
  2. b:NR = not report
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Head & Face Medicine

ISSN: 1746-160X

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