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Fig. 1 | BMC Oral Health

Fig. 1

From: A novel three-dimensional quantitative assessment method for abnormal root morphology of the maxillary premolars in vivo on cone-beam computed tomography

Fig. 1

Measurements of parameters of root width and root length. GF, GE: Mesial and distal CEJ connect to apical point; B, C: Median point of GF, GE; AD: Line BC extended till the edge of the root, forming a line segment AD; H: Sagittal plane; I: Axial plane; K: Coronal plane; L:1: the lowest point of the CEJ of the buccal side; 2: the lowest point of the CEJ of the lingual side; 3: the midpoint of line 1 and 2; 4: apical root point; Line 3,4: root length; M: Conical premolar (left); Normal premolar (right)

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BMC Oral Health

ISSN: 1472-6831

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