The incidence of complication during lower third molar odontectomy is assessed to be lower than 1%. Accidental displacement of impacted tooth to the adjacent anatomical spaces is a rare but serious complication, especially in pterygomandibular spaces which encloses vital anatomic structures. Retrieval of a displaced tooth may be difficult, therefore, retrieval may result in permanent damage. This paper highlights the value preoperative examinations in face of accidentally displaced molar. An 18-years old male patient was referred by a general dentist after in toto technique odontectomy for the further surgical management of mandibular left third molar displacement. An orthop- antomography and CT scan were taken to determine the precise position of the tooth. The operation was performed under general anesthesia. Marginal incision in lingual was carefully made. After reflecting the flap, the tooth was exposed and removed with preserving vital structures. After 14 days awaiting an asymptomatic health status, the second surgery was successful without complication. Post-operative recovery was uneventful. The best way to man- age surgical complication is prevention. Thus, all procedures should be managed by competent professionals who has appropriate knowledge about the surgical anatomy. Furthermore, The complication such as retrieval of tooth displacement should be carried out immediately through adequate clinical and radiological assessment.