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Fig. 1 | BMC Oral Health

Fig. 1

From: Morphological changes of the root apex in anterior teeth with periapical periodontitis: an in-vivo study

Fig. 1

The measurement of apical constriction diameters in CBCT images. Horizontal plane at the apical constriction level of the root canal with AP (a) and without AP (b) were measured respectively. The diameter was determined by drawing a line between the two most distant pixels of the root canal walls. M1 represented the diameter of BL (red line), while M2 represented the diameter of MD (blue line)

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BMC Oral Health

ISSN: 1472-6831

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