Abstract
Real-time ultrasonography was used to detect a small foreign body (a broken tip of a barbed broach) which had migrated into the upper lip of a 26-year-old female from the bone defect of the upper canine apex during root canal treatment 10 months previously. Intra-operative use of ultrasound was of great-help in clarifying the positional relationship between the foreign body and the surgical instruments used, and lead to a satisfactory result
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Abe, K., Nakamatsu, K., Beppu, K. et al. Use of intra-operative ultrasonography to detect a small foreign body in the soft tissue of the upper lip. Br Dent J 177, 292–294 (1994). https://doi.org/10.1038/sj.bdj.4808589
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DOI: https://doi.org/10.1038/sj.bdj.4808589
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