Conclusion The deciduous lower front fused teeth can influence the succedaneous fixed teeth and secondary dentition.
结论乳下前牙融合牙对继承恒牙及恒牙列均有影响。
英语百科
Succedaneous tooth
（重定向自Succedaneous Teeth）
The succedaneous teeth are the permanent teeth that replace the deciduous teeth . Permanent molars are not succedaneous teeth because they do not replace any primary teeth. Succedaneous teeth originate from successional laminae whereas permanent molars originate from the general dental lamina. See dental anatomy.