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Aim To present a newly developed cone beam computerized tomography system (3DX Micro‐CT) and its application in endodontic surgery. Summary Cone beam CT has attracted considerable attention as a new diagnostic imaging technique in dentistry. The assessment of fractured endodontic instruments and the planning of endodontic surgery present challenges that conventional radiography cannot meet successfully. In this report, the value of the 3DX cone beam computerized radiography system is illustrated by the case of a fractured endodontic instrument protruding into the maxillary sinus. Key learning points • Cone beam CT is helpful for diagnosis and treatment planning in endodontic surgery. • Hemisection is an important treatment alternative to save at least a part of the tooth.
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Tsurumachi et al. (2006) studied this question.
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