Artifacts in Cone-Beam Computed Tomography of a Post and Core Restoration: A Case Report

• Main Authors: Masoud Parirokh, Karim Ardjomand, Hamed Manochehrifar
• Format: Article
• Language: English
• Published: Iranian Association of Endodontists; Iranian Center for Endodontic Research 2012-05-01
• Series: Iranian Endodontic Journal
• Subjects: Artifacts; Cone-Beam Computed Tomography; Endodontic; Root Canal Therapy; Radiography
• Online Access: http://journals.sbmu.ac.ir/index.php/iej/article/view/2611/2894

Abstract: Cone-beam computed tomography (CBCT) has been accepted as a useful tool for diagnosis and treatment in endodontics. Despite a growing trend toward using CBCT in endodontic practice the CBCT images should be interpreted carefully. This case report presents a case that showed radiolucency inside and around a tooth which was free of pathologic changes under a dental operative microscope and conventional radiographs. A male patient was referred to an endodontic office for evaluation of radiolucency inside and around tooth #21 in his CBCT images. The post and crown over the tooth was removed and the tooth was observed under a dental operative microscope. Clinical examination as well as direct observation under a dental operative microscope showed no pathological lesions inside and around the tooth. The misdiagnosis was based on an artifact on CBCT. Despite the advantages of CBCT images as a great radiographic aid in endodontic practice, in the presence of metallic structures such as post and core the images should be interpreted with caution.