A case of oral myiasis due to larvae of Wohlfahrtia-magnifica

Methods: The patient complaint was discomfort and swelling in the gingiva of the upper right molar side. The patient’s medical history, review of systems, and family history were noncontributory and oral hygiene was poor. He was a farmer, and he had smoking and mouth breathing habits. Oral examination revealed the presence of larvae in gingiva of the upper right molar and two larvae was removed manually from the patient’s complaint side during the subgingival debridement. The subgingival irrigation with 0.02% Chlorhexidine digluconate was performed for 5-10 seconds. At the time of collection, the larvae were alive, wiggling, and active, and they remained alive for a few hours in formalin. One week after, a careful scaling and root planing was repeated. The patient was called for followed-up regular intervals.

Results: A definitive entomologic identification of the infesting parasite as second stage larvae of Wohlfahrtia magnifica was established by the laboratory. There was no recurrence of the disease

Conclusion: Myiasis is related to poor personal hygiene, residents of rural areas and tropical conditions that favor the flies. We concluded that proper personal and environmental care and good oral hygiene should be carried out to reduce the incidence of myiasis infestation.