Daniela Garib1, Felicia Miranda2, Marilia S Yatabe3, José Roberto Pereira Lauris4, Camila Massaro2, James A McNamara3, Hera Kim-Berman3, Guilherme Janson2, Rolf G Behrents5, Lucia H S Cevidanes3, Antonio Carlos de Oliveira Ruellas3. 1. Department of Orthodontics, Bauru Dental School and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil. 2. Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil. 3. Department of Orthodontics and Pediatric Dentistry, School of Dental Medicine, University of Michigan, Ann Arbor, MI, USA. 4. Department of Public Health, Bauru Dental School, University of São Paulo, Bauru, Brazil. 5. Orthodontic Program at the Center for Advanced Dental Education of Saint Louis University, Saint Louis, MO, USA.
Abstract
OBJECTIVES: The aim of this study was to evaluate the reliability of 3-dimensional maxillary dental changes using two methods of digital model superimposition. SETTING AND SAMPLE POPULATION: The Department of Orthodontics of Bauru Dental School, University of São Paulo and University of Michigan Craniofacial Growth Center. Fifteen subjects with normal occlusion. MATERIAL & METHODS: The sample was composed of digital study models of 15 normal occlusion subjects taken at 13 (T1), 18 (T2) and 60 years of age (T3). Using the software SlicerCMF 3.1, superimposition (registration) was conducted using 9 landmarks placed on the incisive papilla, second and third palatal rugae and 10 mm distal to the third palatal rugae. Two registration methods were compared: landmarks (LA) and regions of interest (ROI). Three-dimensional changes of landmarks on the buccal cusp tip of posterior teeth bilaterally and the incisal edge of the right central incisor were measured by three examiners. Intraclass correlation coefficients and Bland-Altman method evaluated intra- and inter-examiner agreements. RESULTS: Good or excellent intra-examiner agreement was found for T1-T2 and T2-T3 measurements using both registration methods. Inter-examiner agreements were good to excellent for T1-T2 measurements and poor to fair for most T2-T3 measurements. Mean T1-T2 differences were less than 0.5 mm for most measurements. CONCLUSION: Maxillary digital dental models of patients with normal occlusion superimposed on palatal rugae showed an adequate reliability for a 5-year interval comparison using landmarks or regions of interest. Lower than acceptable reproducibility using both superimposition methods was found for a 40-year interval comparison.
OBJECTIVES: The aim of this study was to evaluate the reliability of 3-dimensional maxillary dental changes using two methods of digital model superimposition. SETTING AND SAMPLE POPULATION: The Department of Orthodontics of Bauru Dental School, University of São Paulo and University of Michigan Craniofacial Growth Center. Fifteen subjects with normal occlusion. MATERIAL & METHODS: The sample was composed of digital study models of 15 normal occlusion subjects taken at 13 (T1), 18 (T2) and 60 years of age (T3). Using the software SlicerCMF 3.1, superimposition (registration) was conducted using 9 landmarks placed on the incisive papilla, second and third palatal rugae and 10 mm distal to the third palatal rugae. Two registration methods were compared: landmarks (LA) and regions of interest (ROI). Three-dimensional changes of landmarks on the buccal cusp tip of posterior teeth bilaterally and the incisal edge of the right central incisor were measured by three examiners. Intraclass correlation coefficients and Bland-Altman method evaluated intra- and inter-examiner agreements. RESULTS: Good or excellent intra-examiner agreement was found for T1-T2 and T2-T3 measurements using both registration methods. Inter-examiner agreements were good to excellent for T1-T2 measurements and poor to fair for most T2-T3 measurements. Mean T1-T2 differences were less than 0.5 mm for most measurements. CONCLUSION: Maxillary digital dental models of patients with normal occlusion superimposed on palatal rugae showed an adequate reliability for a 5-year interval comparison using landmarks or regions of interest. Lower than acceptable reproducibility using both superimposition methods was found for a 40-year interval comparison.
Authors: Lucia H C Cevidanes; Gavin Heymann; Marie A Cornelis; Hugo J DeClerck; J F Camilla Tulloch Journal: Am J Orthod Dentofacial Orthop Date: 2009-07 Impact factor: 2.650
Authors: Dong-Soon Choi; Young-Mok Jeong; Insan Jang; Paul George Jost-Brinkmann; Bong-Kuen Cha Journal: Angle Orthod Date: 2010-07 Impact factor: 2.079
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