CBCT测量超长多生下颌前磨牙1例

Measurement of a supernumerary and superlong premolar mandibular premolar by CBCT

利用CBCT对临床发现的超长多生下颌右侧前磨牙1例进行了测量,测得多生牙根长为24.05 mm,牙根直径为4.27 mm,根管内径为0.5 mm,为临床所罕见。

CBCT was used to measure a clinically found extralong supernumerary mandibular right premolar,the root length was 24.05 mm,root diameter was 4.27 mm,and root canal diameter was 0.5 mm,which was rarely reported in clinical practice.