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Table 1 Search strategies and results from different electronic databases

From: Radiologically determined orthodontically induced external apical root resorption in incisors after non-surgical orthodontic treatment of class II division 1 malocclusion: a systematic review

Database Keywords Results
PubMed 1966 to July 2013, week 2 (Root* Resorption OR Root* Shortening) AND (Orthodontic* OR Class II OR Malocclusion*) 302
Ovid MEDLINE(R) 1946 to July Week 2 2013 ((Resorption.ab or resorption.in or resorption.kf or resorption.kw or resorption.nm or resorption.ot or resorption.ti) OR (Shortening.ab or shortening.in or shortening.kf or shortening.kw or shortening.ot or shortening.ti)) AND ((Exp Orthodontic brackets or orthodontic*.mp or exp Orthodontic appliances or exp orthodontic extrusion or exp orthodontics space closure or exp orthodontic appliance design or exp Orthodontic retainers or exp Orthodontic Appliance, functional or exp orthodontic anchorage procedures or exp ‘index of orthodontic treatment need’ or exp orthodontic wire or exp orthodontics appliances, removable) OR (Malocclusion*.mp or exp Malocclusion or exp Malocclusion Angle Class II)) 1,529
Total electronic databases searches   1,831
Duplicates   109
Final   1,722
  1. *Truncation of words.