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Progress in Orthodontics
Fig. 1 | Progress in Orthodontics

Fig. 1

From: The inflection point: a torque reference for lingual bracket positioning on the palatal surface curvature of the maxillary central incisor

Fig. 1

a Labio-palatal axis of RMCI (drawn line) was crossed by the sagittal plane indicator in the axial slice of CBCT image. b Sagittal slice of CBCT image showing proximal aspect of RMCI and calibration line. c The red line joins palatal and labial CEJs, while blue line (L) represents crown’s long axis. d Image rotation was done such that line (L) became horizontal

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