Katherine Kula1, H Zeynep Cilingir2, George Eckert3, Jack Dagg4, Ahmed Ghoneima5. 1. a Endowed Professor and Department Chair, Department of Orthodontics, Indiana University School of Dentistry, Indianapolis, Ind. 2. b Instructor, Department of Music, State Conservatory, Anadolu University, Eskisehir, Turkey. 3. c Biostatistician Supervisor, Department of Biostatistics, School of Medicine, Indiana University, Indianapolis, Ind. 4. d Instructor, Department of Mathematics and Statistics, Northern Kentucky University, Ky. 5. e Assistant Professor, Department of Orthodontics, Indiana University School of Dentistry, Indianapolis, Ind.
Abstract
OBJECTIVE: To determine whether trumpet performance skills are associated with malocclusion. MATERIALS AND METHODS: Following institutional review board approval, 70 university trumpet students (54 male, 16 female; aged 20-38.9 years) were consented. After completing a survey, the students were evaluated while playing a scripted performance skills test (flexibility, articulation, range, and endurance exercises) on their instrument in a soundproof music practice room. One investigator (trumpet teacher) used a computerized metronome and a decibel meter during evaluation. A three-dimensional (3D) cone-beam computerized tomography scan (CBCT) was taken of each student the same day as the skills test. Following reliability studies, multiple dental parameters were measured on the 3D CBCT. Nonparametric correlations (Spearman), accepting P < .05 as significant, were used to determine if there were significant associations between dental parameters and the performance skills. RESULTS: Intrarater reliability was excellent (intraclass correlations; all r values > .94). Although associations were weak to moderate, significant negative associations (r ≤ -.32) were found between Little's irregularity index, interincisal inclination, maxillary central incisor rotation, and various flexibility and articulation performance skills, whereas significant positive associations (r ≤ .49) were found between arch widths and various skills. CONCLUSIONS: Specific malocclusions are associated with trumpet performance of experienced young musicians.
OBJECTIVE: To determine whether trumpet performance skills are associated with malocclusion. MATERIALS AND METHODS: Following institutional review board approval, 70 university trumpet students (54 male, 16 female; aged 20-38.9 years) were consented. After completing a survey, the students were evaluated while playing a scripted performance skills test (flexibility, articulation, range, and endurance exercises) on their instrument in a soundproof music practice room. One investigator (trumpet teacher) used a computerized metronome and a decibel meter during evaluation. A three-dimensional (3D) cone-beam computerized tomography scan (CBCT) was taken of each student the same day as the skills test. Following reliability studies, multiple dental parameters were measured on the 3D CBCT. Nonparametric correlations (Spearman), accepting P < .05 as significant, were used to determine if there were significant associations between dental parameters and the performance skills. RESULTS: Intrarater reliability was excellent (intraclass correlations; all r values > .94). Although associations were weak to moderate, significant negative associations (r ≤ -.32) were found between Little's irregularity index, interincisal inclination, maxillary central incisor rotation, and various flexibility and articulation performance skills, whereas significant positive associations (r ≤ .49) were found between arch widths and various skills. CONCLUSIONS: Specific malocclusions are associated with trumpet performance of experienced young musicians.