Canal preparation in obliterated canals is always a great challenge for the operator, which may lead to inadvertent errors such as instrument separation. The prognosis of leaving a separated instrument inside incompletely cleaned root canals remains a concern as the microbial control is compromised. Masserann kit is a specially designed kit for the orthograde removal of metallic objects from the root canals. This case report describes an effective method for retrieval of a tightly bound separated K[1]file from apical 3rdroot canal dentin of a calcified maxillary lateral incisor using masserann kit combined with the use of modified gates glidden drills and ultrasonic tips under dental operating microscope. It was demonstrated that although use of Masserann kit can be a time consuming procedure, but it can be considered as an effective tool in instrument retrieval especially in thick, straight roots of anterior teeth
