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Table 1 Electronic databases searched and search strategies used in the meta-analysis (up to April 2017)

From: Are there differences in treatment effects between labial and lingual fixed orthodontic appliances? A systematic review and meta-analysis

Database Search strategy used Hits
MEDLINE searched via Pubmed (www.ncbi.nlm.nih.gov/pubmed) (orthodontics [mesh] OR orthodontic) AND (“labial” OR “labial orthodontics” OR “labial treatment” OR “labial bracket” OR “labial cephalometric” OR “buccal” OR “buccal orthodontics” OR “buccal treatment” OR “buccal bracket” OR “buccal cephalometric” AND (“lingual” OR “lingual orthodontics” OR “lingual treatment” OR “lingual bracket” OR “lingual cephalometric” 2642
Cochrane Central Register of Controlled Trials searched via the Cochrane Library (www.thecochranelibrary.com) (orthodontics OR orthodontic) AND (“labial” OR “labial orthodontics” OR “labial treatment” OR “labial bracket” OR “labial cephalometric” OR “buccal” OR “buccal orthodontics” OR “buccal treatment” OR “buccal bracket” OR “buccal cephalometric”) AND (“lingual” OR “lingual orthodontics” OR “lingual treatment” OR “lingual bracket” OR “lingual cephalometric” 52
LILACS (http://lilacs.bvsalud.org/es) (orthodontics OR orthodontic OR labial OR buccal OR lingual) AND (bracket OR cephalometric OR treatment) 191
Total   2885