CharlesPGiraudeauBDechartresAet al. (2009) Reporting of sample size calculation in randomised controlled trials: review. BMJ338: b1732.
2.
GuyattGHMillsEJElbourneD (2008) In the era of systematic reviews, does the size of an individual trial still matter. PLoS Medicine5: e4.
3.
KaklamanosEGMavreasDTsalikisLet al. (2017) Treatment duration and gingival inflammation in Angle’s Class I malocclusion patients treated with the conventional straight-wire method and the Damon technique: a single-centre, randomised clinical trial. Journal of Orthodontics44: 75–81.
4.
KoletsiDFlemingPSSeehraJet al. (2014) Are sample sizes clear and justified in RCTs published in dental journals?PLoS One9: e85949.
5.
OngEHoCMilesP (2011) Alignment efficiency and discomfort of three orthodontic archwire sequences: a randomized clinical trial. Journal of Orthodontics38: 32–39.
6.
PapageorgiouSN (2018) On the sample size of clinical trials – revisited. Journal of Orthodontics45: 296–298.
7.
YassirYAEl-AngbawiAMMcIntyreGTet al. (2018) A randomized clinical trial of the effectiveness of 0.018-inch and 0.022-inch slot orthodontic bracket systems: part 1-duration of treatment. European Journal of Orthodontics. doi: 10.1093/ejo/cjy037. [Epub ahead of print]