在磨牙的根分叉区域,副根管的发生率是较高的。虽然副根管在常规治疗中是不封闭的,而且一般认为副根管只是一些特殊的牙本质小管,但其存在的可能会影响治疗的成败。因为根分叉区域的副根管可能与龈沟相通,如受累继发牙周病,暴露在根分叉处的副根管可引起细菌的聚集。 The incidence of secondary root canal is higher in the root furcation area of ​​the molars. Although the accessory root canal is not closed during routine treatment and the accessory root canal is generally considered to be a particular type of dentinal tubule, its presence may affect the success of the treatment. Because the root canal of the root bifurcation may be connected with the gingival sulcus, such as the involvement of secondary periodontal disease, exposure to the root canal bifurcation of the root canal can cause bacterial aggregation.