James P Thomas1, Michelle Lynch2, Susan Paurazas3, Mazin Askar1. 1. University of Detroit Mercy School of Dentistry-Graduate Endodontics, University of Detroit Mercy School of Dentistry, Detroit, Michigan. 2. University of Michigan School of Dentistry-MicroCT Core, Ann Arbor, Michigan. 3. University of Detroit Mercy School of Dentistry-Graduate Endodontics, University of Detroit Mercy School of Dentistry, Detroit, Michigan. Electronic address: paurazsb@udmercy.edu.
Abstract
INTRODUCTION: This study evaluated and compared the shaping ability of the WaveOne Gold (Dentsply/Tulsa Dental Specialties, Tulsa, OK), TRUShape 3D Conforming File (Dentsply/Tulsa Dental Specialties), EdgeCoil (EdgeEndo, Albuquerque, NM), and XP-3D Shaper (Brasseler USA, Savannah, GA) endodontic file systems on oval-shaped canals using micro-computed tomographic (micro-CT) technology. METHODS: Thirty-two oval-shaped, single-canal extracted human teeth were decoronated 1 mm coronal to the cementoenamel junction and scanned via a micro-CT scanner (μCT100; Scanco Medical, Bassersdorf, Switzerland). Teeth were divided into 4 groups (n = 8) and instrumented according to the manufacturer's instructions. Coregistered images, before and after root canal preparation, were evaluated for morphometric measurements of the surface area, volume, structure model index (SMI), conicity, and percent of walls untouched using the manufacturer's evaluation software (IPL Register, Scanco Medical). Data were statistically compared between groups using 1-way analysis of variance and within groups using a paired sample t test. RESULTS: Instrumentation with all file types increased the surface area, volume, and conicity between and within groups. There was no statistically significant difference between the groups for any of the rotary instruments used (P < .05). CONCLUSIONS: Instrumentation of oval-shaped canals with WaveOne Gold, TRUShape, EdgeCoil, and XP-3D Shaper rotary endodontic instruments similarly increase the volume, surface area, and conicity. None of the file systems were capable of contacting all of the surface area in any canal.
INTRODUCTION: This study evaluated and compared the shaping ability of the WaveOne Gold (Dentsply/Tulsa Dental Specialties, Tulsa, OK), TRUShape 3D Conforming File (Dentsply/Tulsa Dental Specialties), EdgeCoil (EdgeEndo, Albuquerque, NM), and XP-3D Shaper (Brasseler USA, Savannah, GA) endodontic file systems on oval-shaped canals using micro-computed tomographic (micro-CT) technology. METHODS: Thirty-two oval-shaped, single-canal extracted human teeth were decoronated 1 mm coronal to the cementoenamel junction and scanned via a micro-CT scanner (μCT100; Scanco Medical, Bassersdorf, Switzerland). Teeth were divided into 4 groups (n = 8) and instrumented according to the manufacturer's instructions. Coregistered images, before and after root canal preparation, were evaluated for morphometric measurements of the surface area, volume, structure model index (SMI), conicity, and percent of walls untouched using the manufacturer's evaluation software (IPL Register, Scanco Medical). Data were statistically compared between groups using 1-way analysis of variance and within groups using a paired sample t test. RESULTS: Instrumentation with all file types increased the surface area, volume, and conicity between and within groups. There was no statistically significant difference between the groups for any of the rotary instruments used (P < .05). CONCLUSIONS: Instrumentation of oval-shaped canals with WaveOne Gold, TRUShape, EdgeCoil, and XP-3D Shaper rotary endodontic instruments similarly increase the volume, surface area, and conicity. None of the file systems were capable of contacting all of the surface area in any canal.
Authors: Javier Caviedes-Bucheli; Nestor Rios-Osorio; Diana Usme; Cristian Jimenez; Adriana Pinzon; Jorge Rincón; María M Azuero-Holguin; Alvaro Zubizarreta-Macho; Jose F Gomez-Sosa; Hugo R Munoz Journal: BMC Oral Health Date: 2021-02-25 Impact factor: 2.757
Authors: Lilian Tietz; Renan Diego Furlan; Ricardo Abreu da Rosa; Marco Antonio Hungaro Duarte; Murilo Priori Alcalde; Rodrigo Ricci Vivan; Theodoro Weissheimer; Marcus Vinicius Reis Só Journal: Restor Dent Endod Date: 2022-02-15