Invasion of Calcium Hydroxide Preparations Leading to Severe Chemical Nerve Injury Treated Through Nerve Repair Using Artificial Nerve Conduit: A Case Report.

ABSTRACT: Calcium hydroxide is an effective agent in endodontic treatment worldwide. Some cases reported that treating a mandibular molar can lead to severe incidents of overfilling from the root canal, which leads to nerve disturbance. However, it remains unclear how nerve disturbance affects the degree of the recovery of sensation, whether through treatment or observation. We present a nerve repair of the inferior alveolar nerve injury caused by endodontic treatment, wherein perception did not improve after several months of observation. Postoperative pathological findings revealed that the injured nerve bundle contained calcium hydroxide and colloidal foreign bodies as a residue of barium sulfate. Therefore, sensory malfunction in our case was attributed to two factors: chemical damage due to the

SUBMITTER: Nishiyama A 

PROVIDER: S-EPMC12721732 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature