Fig. 4From: Predictors of long-term stability of maxillary dental arch dimensions in patients treated with a transpalatal arch followed by fixed appliancesArch length measurement (D), as the perpendicular distance from the most facial point on the most prominent central incisor to a line constructed between contact point mesial to the permanent first molars. *Figures are from Raucci et al [10] courtesy of The Angle OrthodontistBack to article page