Surgical extraction of the mandibular or maxillary third molar is a routine surgical procedure in the department of oral and maxillofacial surgery. But despite of adequate effort to perform these surgeries carefully, it can result in a number of complications. Sometimes accidental surgical instruments can be buried during the surgical procedures. But, this is a very rare complication reported in the literature. The present article reports one of the rare case of non-symptomatic accidental buried of high-speed handpiece bur into the bone. It is the responsibility of the dental practitioner to always check the surgical instrument for breakage signs and should be prepared to solve any possible emergency of this type. Retained instrument fragments should be studied carefully prior to attempt of removal.