Cases of furcation that involve particular anatomical configurations, i.e., interradicular root proximity / fusion, have在面对根岔侵犯并加上牙根合并或紧邻的问题时，牙根切除术或牙齿切半术，在传统上均被视为禁忌。
However, there has been little discussion of the role of interradicular root proximity in regenerative procedures.然而有关牙根紧邻对引导组织再生效果的影响，在文献中相关的报告极少。