抄録
It is very important to measure the enamel width of human teeth to decide the arch length discrepancy. The purpose of this research was to know the actual enamel width in extracted human teeth by a video microscope and to measure it in Soft-radiograph negative films to help our clinical consideration about relationship between actual enamel size and that in dental X-ray film. We used approximately 400 extracted teeth to measure the width by video microscope and Soft-radiograph negative films. Mean value of the teeth were of enamel from 0.78mm to 1.31mm according with the size of teeth. On the other hand, the Soft-radiograph films were 0.67mm to 1.32 mm. Moreover, we could get good correlation between the actual sizes and the Soft-radiograph films. In conclusion,we might clinically apply these data to supervise the enamel width from X-ray films, reducing orthodontic premolar extraction.
