Fig. 1From: Diagnostic value of cervical vertebral maturation stages for midpalatal suture maturation assessment: a study in the Chinese populationMaturation stages A, B, C, D and E of the midpalatal suture. Stage A is characterized by a approximately straight high-density line (unfused suture). Stage B is characterized by a curved high-density line (unfused suture). Stage C is characterized by two curved line parallel to each other (the beginning of suture fusion). Stage D is characterized by two curved lines in the front of the palate that disappeared towards the back (partial suture fusion). Stage E is characterized by the completely disappear of the suture line (complete suture closure)Back to article page