Humans have two sets of teeth, hence called dipyodont. The first set is called primary dentition, because of its first arrival in the oral cavity, it is a transitory phase and it is finally replaced by a set of permanent/secondary dentition through a mixed dentition period. The role played by primary dentition is very crucial and has far reaching consequences even though they stay for a very crucial short duration of the whole human life. The primary dentition acts as a guide for the erupting permanent successors as it acts as a space maintainer for the permanent dentition. Any pathology...