Table 1 List of excluded studies (with reason)
Reference | Reason for exclusion |
|---|---|
Barros et al. (2017) [3] | Anchorage loss at first molar not specified |
Borsos et al. (2012) [7] | No en masse retraction (two step canine and front retraction) |
Dai et al. (2009) [10] | Chinese language |
Durrani et al. (2017) [13] | Anchorage loss a first molar not specified |
El-Beialy et al. (2009) [14] | Anchorage loss a first molar not specified |
Garfinkle et al. (2008) [16] | Anchorage loss at first molar not specified |
Heo et al. (2007) [18] | No mini implants used for anchorage |
Herman et al. (2006) [19] | Anchorage loss a first molar not specified |
Janson et al. (2013) [22] | Anchorage loss a first molar not specified |
Jee et al. (2014) [23] | Use of mini implants and mini-plates |
Kuroda et al. (2009) [27] | T0 ceph before leveling (anchorage loss not specified during en masse retraction only) |
Liu et al. (2011) [29] | Anchorage loss at first molar not specified |
Ma et al. (2015) [30] | Full-text unavailable (requested but no response from authors) |
Miyazawa et al. (2010) [33] | Anchorage loss at first molar not specified |
Monga et al. (2016) [35] | Retrospective study |
Park et al. (2004) [38] | Case report |
Park et al. (2007) [40] | Case report |
Park et al. (2008) [41] | Retrospective study |
Santiago et al. (2009) [43] | No en masse retraction, anchorage loss at first molar not specified |
Shi et al. (2008) [44] | Extraction of premolars or molars |
Thiruvenkatachari et al. (2006) [46] | Canine retraction only |
Turkoz et al. (2011) [47] | No premolars extracted |
Upadhyay et al. (2012) [51] | No premolar extraction |
Gollner et al. (2009) [17] | No premolar extraction |
Wehrbein et al. (1996a) [55] | Case report |
Wehrbein et al. (1996b) [56] | Case report |
Xu et al. (2008) [59] | Language not meeting inclusion criteria |
Xun et al. (2004) [61] | Language not meeting inclusion criteria |
Yao et al. (2008) [62] | Retrospective study, mini-plates, and mini implants used |