Root resorption is not a common dental condition but it can lead to tooth extraction. There are two main types of resorption that may happen to a tooth: internal and external. The causes of external resorption can be trauma, rapid orthodontic movement and infection etc. The troublesome tooth in this x-ray caused toothache and pus oozing out of gums. On the x-ray, the tooth showed dark area on the root but the margins of the nerve was quite clear. Thus we highly suspected e