Marcos Ioshida1, Brian Andres Muñoz2, Hector Rios3, Lucia Cevidanes4, Juan Fernando Aristizabal5, Diego Rey6, Hera Kim-Berman7, Marilia Yatabe8, Erika Benavides9, Maria Antonia Alvarez10, Sarah Volk11, Antonio C Ruellas12. 1. Research Fellow, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. Electronic address: Mioshida@umich.edu. 2. Resident of orthodontics, Valle University, Cali, Colombia. 3. Adjunct Clinical Associate Professor, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. 4. Associate Professor, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. 5. Associate Professor and Head, Department of Orthodontics, Universidad del Valle, Colombia. 6. Associate Professor and Head, Department of Orthodontics, CES University, Medellin, Colombia. 7. Program Director and Clinical Assistant Professor, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. 8. Craniofacial Fellow, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. 9. Clinical Associate Professor, Division of Oral Pathology/Medicine/Radiology, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. 10. Resident of orthodontics, CES University, Medellin, Colombia. 11. Clinical Research Coordinator, Internal Medicine, Division of Gastroenterology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA. 12. Associate Professor, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA; Associate Professor, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Abstract
OBJECTIVE: The aim of the study was to validate a method of mandibular digital model (DM) registration, acquired from an intraoral scanner, compared with high-resolution voxel-based cone beam computed tomography (CBCT) registration with use of the mucogingival junction as the reference. STUDY DESIGN: Pre- and post-treatment CBCT and DM images from 12 adults were randomly selected from an initial sample of 40 patients who had undergone orthodontic treatment. The DM registration was performed in 6 steps: (1) construction of 3-dimensional (3-D) volumetric label maps of CBCT scans, (2) voxel-based registration of CBCT scans, (3) prelabeling of CBCT images, (4) approximation and registration of DM models to the corresponding CBCT models, (5) mucogingival-junction registration of pretreatment and post-treatment DM images, and (6) measurements. The Mann-Whitney U test was used to calculate the significance of differences between the CBCT and DM registrations. The intraclass correlation coefficient (ICC) was performed to assess reproducibility of the registration method. RESULTS: When registered CBCT models and registered DM models were compared, no statistically significant differences in the measurements were found (right-left P = .267; anterior-posterior P = .238; superior-inferior P = .384; and 3-D P = .076). ICC showed excellent intra- and inter-rater correlation (ICC > 0.90). CONCLUSIONS: The method of DM registration of the mandible with use of the mucogingival junction as the reference is accurate, reliable, and reproducible.
OBJECTIVE: The aim of the study was to validate a method of mandibular digital model (DM) registration, acquired from an intraoral scanner, compared with high-resolution voxel-based cone beam computed tomography (CBCT) registration with use of the mucogingival junction as the reference. STUDY DESIGN: Pre- and post-treatment CBCT and DM images from 12 adults were randomly selected from an initial sample of 40 patients who had undergone orthodontic treatment. The DM registration was performed in 6 steps: (1) construction of 3-dimensional (3-D) volumetric label maps of CBCT scans, (2) voxel-based registration of CBCT scans, (3) prelabeling of CBCT images, (4) approximation and registration of DM models to the corresponding CBCT models, (5) mucogingival-junction registration of pretreatment and post-treatment DM images, and (6) measurements. The Mann-Whitney U test was used to calculate the significance of differences between the CBCT and DM registrations. The intraclass correlation coefficient (ICC) was performed to assess reproducibility of the registration method. RESULTS: When registered CBCT models and registered DM models were compared, no statistically significant differences in the measurements were found (right-left P = .267; anterior-posterior P = .238; superior-inferior P = .384; and 3-D P = .076). ICC showed excellent intra- and inter-rater correlation (ICC > 0.90). CONCLUSIONS: The method of DM registration of the mandible with use of the mucogingival junction as the reference is accurate, reliable, and reproducible.
Authors: Maxime Dumont; Juan Carlos Prieto; Serge Brosset; Lucia Cevidanes; Jonas Bianchi; Antonio Ruellas; Marcela Gurgel; Camila Massaro; Aron Aliaga Del Castillo; Marcos Ioshida; Marilia Yatabe; Erika Benavides; Hector Rios; Fabiana Soki; Gisele Neiva; Juan Fernando Aristizabal; Diego Rey; Maria Antonia Alvarez; Kayvan Najarian; Jonathan Gryak; Martin Styner; Jean-Christophe Fillion-Robin; Beatriz Paniagua; Reza Soroushmehr Journal: Shape Med Imaging (2020) Date: 2020-10-03
Authors: Amalia Cong; Antonio Carlos de Oliveira Ruellas; Sandra Khong Tai; Charlene Tai Loh; Mary Barkley; Marilia Yatabe; Marco Caminiti; Camila Massaro; Jonas Bianchi; Romain Deleat-Besson; Celia Le; Juan Carlos Prieto; Najla N Al Turkestani; Lucia Cevidanes Journal: Am J Orthod Dentofacial Orthop Date: 2022-10 Impact factor: 2.711
Authors: Najla Al Turkestani; Jonas Bianchi; Romain Deleat-Besson; Celia Le; Li Tengfei; Juan Carlos Prieto; Marcela Gurgel; Antonio C O Ruellas; Camila Massaro; Aron Aliaga Del Castillo; Karine Evangelista; Marilia Yatabe; Erika Benavides; Fabiana Soki; Winston Zhang; Kayvan Najarian; Jonathan Gryak; Martin Styner; Jean-Christophe Fillion-Robin; Beatriz Paniagua; Reza Soroushmehr; Lucia H S Cevidanes Journal: Orthod Craniofac Res Date: 2021-05-24 Impact factor: 1.826