Fig. 4From: Orthodontically induced external apical root resorption considerations of root-filled teeth vs vital pulp teeth: a systematic review and meta-analysisResults of dental subgroup analysis. The teeth were divided into two subgroups by anterior teeth and posterior teeth. Only in the posterior teeth group was the difference between root-filled teeth and vital pulp teeth in terms of the degree of orthodontic root resorption statistically significant. SD, standard deviation; IV, information value; 95% CI, 95% confidence intervalBack to article page