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. 2016 Jan 7;86(5):746–752. doi: 10.2319/085015-571.1

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© 2016 by The EH Angle Education and Research Foundation, Inc.

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Figure 2. Linear and angular CBCT measurements: (1) 1 length, distance from apex to cementoenamel junction on long axis of the tooth (carried out for all the incisors); (2) 1-PP, angle between long axis of upper central incisor and palatal plane; (3) CR-PP, perpendicular distance from CR of the central incisor to palatal plane; (4) CR-T, perpendicular distance from CR of the central incisor to T plane (plane passing through posterior nasal spine and perpendicular to the palatal plane). — Linear and angular CBCT measurements: (1) 1 length, distance from apex to cementoenamel junction on long axis of the tooth (carried out for all the incisors); (2) 1-PP, angle between long axis of upper central incisor and palatal plane; (3) C_R-PP, perpendicular distance from C_R of the central incisor to palatal plane; (4) C_R-T, perpendicular distance from C_R of the central incisor to T plane (plane passing through posterior nasal spine and perpendicular to the palatal plane).