• Saber, Shehabeldin
• Elshenawy, Ahmed M.
• Chew, Hooi Pin
• Sadat, Shaimaa Mohamed Abu El
• Elashiry, Mohamed Mohamed
• Fok, Alex

Abstract

<jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>This study aimed to assess the quality of various obturation techniques to fill perforation caused by internal root resorption using Micro-computed Tomography.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Cone-beam computed tomography images of a maxillary central incisor tooth with perforating internal resorptive defect were used to create a 3D printed model of the affected tooth. The replicas were divided into four groups based on the obturation technique used. The techniques included Group 1: a polydimethylsiloxane-based sealer (GuttaFlow-2) with gutta-percha. Group 2: same as Group 1 except for using a pre-mixed Bioceramic-based sealer (NeoSEALER Flo). Group 3: the defect was filled entirely using the NeoSealer Flo Bioceramic-based sealer. Group 4: the samples were obturated using the warm vertical compaction technique with a resin-based sealer (ADSeal). The resin models were then scanned a micro-computed scanner to evaluate the percentage of voids in each group.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The results showed that NeoSEALER Flo groups had significantly the highest volume of voids while GuttaFlow-2 and warm vertical compaction groups had the lowest void volume.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>GuttaFlow-2 and warm vertical compaction techniques performed best in filling the internal resorptive defect.</jats:p></jats:sec>

Topics

• tomography
• void
• resin
• size-exclusion chromatography