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Removal of a Fixation Screw That Was Forced Into the Postsuperior Maxillary Sinus Wall: Case Report
Yoichiro Nakajima1, Michi Omori1, Kazuya Inoue1
1Assistant Professor, Division of Medicine for Function and Morphology of Sensor Organs, Department of Dentistry and Oral Surgery, Faculty of Medicine, Osaka Medical College, Takatsuki, Japan.
Abstract:
We have encountered a rare case in which the subject underwent maxillary sinus floor elevation at another hospital, and a screw to fix the grafted bone substitute was forced into the maxillary sinus and intruded into the bone. Various different foreign bodies have been reported as being forced into the maxillary sinus due to dental treatment, and these foreign bodies are often retained on the maxillary sinus mucous membrane. However, no reports have described a screw forced in and intruded into the peculiar position in the bone, as seen in the present case, which we report here with additional discussion.
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