Introduction
Oral ulceration can emerge from various causes, including thermal,
physical, chemical, immunological, and malignant processes. Chemical
oral ulceration is relatively rare compared to other reasons; it can
occur from the misuse of dental material, over-the-counter dental
product ingredients, side effects of drugs, or consequence of suicidal
attempt as ingestion of chemical products.11 We present a case
report for oral chemical ulceration as a result of iatrogenic hydraulic
oil leaking from the air unit of a surgical handpiece during surgical
tooth extraction.