Skip to main content
Progress in Orthodontics
Fig. 3 | Progress in Orthodontics

Fig. 3

From: Stress and movement trend of lower incisors with different IMPA intruded by clear aligner: a three-dimensional finite element analysis

Fig. 3

Comparison of the force pattern of the bilateral identical teeth. Mandibular bilateral identical teeth were symmetrical in moment, mesiodistal force, labiolingual force, and vertical force. A. The mandibular anterior tooth moment: The mandibular left canine (33) and mandibular right canine (43) received distal crown moment basically without difference. The labial crown moment of the mandibular left central incisor (31), mandibular right central incisor (41), mandibular left lateral incisor (32), and mandibular right lateral incisor (42) were symmetrical. B. The labiolingual or mesiodistal force: CR of 33, 43 received force toward mesial direction without difference. 31, 32, 41, and 42 received labiolingual force without difference. C. The vertical force: 33 and 43 were subjected to the extrusive force without difference. 31, 32, 41, and 42 were subjected to the intrusive force without difference

Back to article page