NECROSIS OF ALVEOLAR BONE BY FORMOCRESOL : CASE REPORT

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Journal of the Korean Academy of Pediatric Dentistry 2005;32(4):657-661.
Published online November 30, 2005.

NECROSIS OF ALVEOLAR BONE BY FORMOCRESOL : CASE REPORT

Formocresol에 의한 치조골 괴사의 치험례

박철홍, 이창섭, 이상호, 이난영

조선대학교 치과대학 소아치과학교실 구강생물학연구소

Correspondence: ,

Abstract

Various chemotherapeutic agents have been recommended for pulpotomy of primary teeth, and there are formocresol, ferric sulfate, and calcium hydroxide. Of those, formocresol has fixation effect of pulp tissue and high clinical success rate, so it is most commonly used agent. But formocresol has strong cytotoxic effects, thus many articles reported displacement and loss of permanent successor, amelogenesis imperfecta, mutation by general absorption, possibility of cancer induction. Recently, it has been reported that leakage by imperfect temporary sealing when FC-soaked cotton was inserted into the root canal caused necrosis of surrounding tissues. and that necrosis of alveolar bone related to the use of excessive formocresol. In this case, 2nd primary molar of upper left jaw was treated using formocresol in local clinic, but extracted because of lasting pain. Furthermore, symptoms didn't disappear so patient was refered to us. The patient was 8-year-old male, had foul odor from oral cavity and circular alveolar bone necrosis around the permanent successor' crown. Thus sequestrectomy was operated and observed through 19 months after operation, we found normal root development of permanent successor but no complete regeneration of alveolar bone defect and attached gingiva. Lesion of periodontal tissues by formocresol is irreversible, so we have to confirm the indication in using formocresol and pay attention to complete temporary sealing.

Key Words: Formocresol, Alveolar bone necrosis, Primary molar, Sequestrectomy