Roberto Rongo1, Rosa Valleta2, Rosaria Bucci3, Giulio Alessandri Bonetti4, Ambrosina Michelotti5, Vincenzo D'Antò6. 1. a Postdoctoral student, School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Napes, Italy. 2. b Associate Professor, School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Naples, Italy. 3. c PhD student, School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Naples, Italy. 4. d Assistant Professor, Department of Orthodontics, University of Bologna, Bologna, Italy. 5. e Professor and Chair, School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Naples, Italy. 6. f Research Fellow, School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Naples, Italy; Division of Dentistry, Department of Pediatric Surgery, Bambino Gesù Children's Hospital, Rome, Italy.
Abstract
OBJECTIVE: To assess interobserver and intraobserver reproducibility of the cervical vertebrae maturation method (CVMM) among three panels of judges with different levels of orthodontic experience (OE). MATERIALS AND METHODS: Fifty individual lateral cephalograms of good quality with complete visualization of cervical vertebrae 1 to 4 were selected. Thirty clinicians, divided according to their OE into three groups (junior group, JU, OE ≤ 1 year; postgraduate group, PG, 2 ≤ OE ≤ 4 years; specialist group, SP, OE ≥ 7 years), evaluated the cephalograms in two sessions (T1 and T2) at 3 weeks apart. Kendall's W and weighted Cohen's kappa (κ) coefficients were performed to assess interobserver and intraobserver agreement. The level of significance was set as P < .05. For both the interobserver and the intraobserver datasets, the percentage of perfect agreement (PPA) and the number of stages apart for each disagreement were calculated. RESULTS: Kendall's W at T1 was SP = 0.61, PG = 0.70, and JU = 0.87; at T2 it was SP = 0.78, PG = 0.85, and JU = 0.86. The percentage of total interobserver perfect agreement (Inter-PPA) was 42.3% at T1 and 46.3% at T2. The JU group had the highest Cohen's κ coefficient at 0.78, while the PG and SP had coefficients of 0.64 each. The percentage of total intraobserver perfect agreement (Intra-PPA) was 54.2%. CONCLUSIONS: The reproducibility of the method was not improved by the level of orthodontic experience. The group with the lowest level of orthodontic experience had the best performance.
OBJECTIVE: To assess interobserver and intraobserver reproducibility of the cervical vertebrae maturation method (CVMM) among three panels of judges with different levels of orthodontic experience (OE). MATERIALS AND METHODS: Fifty individual lateral cephalograms of good quality with complete visualization of cervical vertebrae 1 to 4 were selected. Thirty clinicians, divided according to their OE into three groups (junior group, JU, OE ≤ 1 year; postgraduate group, PG, 2 ≤ OE ≤ 4 years; specialist group, SP, OE ≥ 7 years), evaluated the cephalograms in two sessions (T1 and T2) at 3 weeks apart. Kendall's W and weighted Cohen's kappa (κ) coefficients were performed to assess interobserver and intraobserver agreement. The level of significance was set as P < .05. For both the interobserver and the intraobserver datasets, the percentage of perfect agreement (PPA) and the number of stages apart for each disagreement were calculated. RESULTS: Kendall's W at T1 was SP = 0.61, PG = 0.70, and JU = 0.87; at T2 it was SP = 0.78, PG = 0.85, and JU = 0.86. The percentage of total interobserver perfect agreement (Inter-PPA) was 42.3% at T1 and 46.3% at T2. The JU group had the highest Cohen's κ coefficient at 0.78, while the PG and SP had coefficients of 0.64 each. The percentage of total intraobserver perfect agreement (Intra-PPA) was 54.2%. CONCLUSIONS: The reproducibility of the method was not improved by the level of orthodontic experience. The group with the lowest level of orthodontic experience had the best performance.
Authors: Amanda C Cunha; Lucia Hs Cevidanes; Eduardo F Sant'Anna; Fabio R Guedes; Ronir R Luiz; James A McNamara; Lorenzo Franchi; Antonio Carlos O Ruellas Journal: Dentomaxillofac Radiol Date: 2018-03-12 Impact factor: 2.419