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University of the Pacific

Endodontics and Endodontology

MicroCT

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Full-Text Articles in Dentistry

Impact Of Access Cavity Design On Peri-Cervical Dentin Removal In 3d Printed Tooth Models, James A. Mcintosh, Ove A. Peters, Christine Peters, Craig Dunlap Jan 2020

Impact Of Access Cavity Design On Peri-Cervical Dentin Removal In 3d Printed Tooth Models, James A. Mcintosh, Ove A. Peters, Christine Peters, Craig Dunlap

Orthodontics and Endodontics Theses

Aims Preservation of peri-cervical dentin during the preparation of endodontic access is important to prevent fractures and improve the long-term prognosis. The purpose of this study was to evaluate the impact of rotary file instrumentation (TruNatomy and XP-Endo Shaper) on peri-cervical dentin removal, depending on access size. Materials and Methods Forty 3D printed mandibular first molars, with either a small or large access design, were instrumented using TruNatomy or XP-endo Shaper file systems. Canal volumes were calculated based on micro-computed tomography data obtained pre- and post-operatively. Digital sectioning of each reconstructed volume was performed 90-degrees to the long axis at …