下顎孔伝達麻酔時に生じた注射針破折迷入の 1 例

抄録

The incidence of broken needles during dental treatment has decreased significantly since the development of disposable dental needles. Recent articles on this subject, however, have been seldom reported. The following case report serves the management of a broken needle in the pterygomandibular space. The case of a 63-year-old man was brought to our office by a dentist who reported that broke a 30-gauge needle while administering a left inferior alveolar nerve block. The dentist attempted to remove the needle but in vain. The CT and radiograph were evaluated and the location of needle was identified. Under general anesthesia vertical mucosal incision was made, blunt dissection was used and the needle was found and removed safely.