Abstract：Objective To investigate the application value of CBCT in the diagnosis and root canal classification of C-shaped root canals in mandibular second molars. Methods The CBCT data of 208 patients were selected,and three-dimensional reconstruction images were obtained with the mandibular second molar as the center.The root canal morphology and typing characteristics of the mandibular second molars were analyzed. Results The incidence of C-shaped root canals was 38.94%.Type C1 was the most common type in the root canal orifice,and the more to the apical direction,the more types C3a and C3b.There was significant difference between the four levels of root canal configurations（P<0.05）.There was significant difference in the type of C-shaped root canal between unilateral and bilateral grooves at the level of root canal orifice and middle section（P<0.05）.There was significant difference in root canal configuration in the middle of root canal between people under 60 years old and people over 60 years old（P<0.05）. Conclusion CBCT could clearly display the three-dimensional configuration of C-shaped root canal system,and had high clinical value for accurately positioning and distinguishing difficult root canal types,and improving the treatment effect of C-shaped root canals.
丁水清, 丁浩, 王小乐. 锥形束CT在下颌第二磨牙C形根管诊治中的应用[J]. 哈尔滨医药, 2023, 43(2): 41-43.
Ding Shuiqing, Ding Hao, Wang Xiaole. Application of Cone-beam Computed Tomography in The Diagnosis and Treatment of C-shaped Root Canals in Mandibular Second Molars. journal1, 2023, 43(2): 41-43.
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2023, Vol. 43 
