TY - JOUR
T1 - Sagittal Position of the Upper Incisor in Relation to the Forehead in Peruvian Individuals with Different Skeletal Relationships
AU - Bazán-Mendoza, José Renatto
AU - Arias-Modesto, Paula Betzabe
AU - Ruíz-Mora, Gustavo Armando
AU - Rodríguez-Cárdenas, Yalil Augusto
AU - Del Castillo, Aron Aliaga
AU - Dutra, Vinicius
AU - Arriola-Guillén, Luis Ernesto
N1 - Publisher Copyright:
© 2023, Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and non-commercial reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
PY - 2023
Y1 - 2023
N2 - Aim: The aim of this study was to determine the sagittal position of the upper incisor considering Andrews’ analysis based on the position of the forehead in Peruvian individuals with different skeletal relationships. Materials and methods: This retrospective, cross-sectional study included 212 lateral head radiographs of Peruvian individuals (males: 85, mean age 21.38 ± 6.88, and females: 127, mean age 21.18 ± 6.95), with different skeletal relationships (Class I group = 96, Class II group = 57, Class III group = 59). The values of the ANB, SNA, SNB angles as well as the forehead anterior limit line (FALL) and goal anterior limit line (GALL) points were identified in the radiographs, and then a vertical line was drawn in each point to determine if the upper incisor was positioned forward (protruded), backward (retruded) or within (adequate) these lines. Two trained and calibrated investigators performed all the measurements. The Chi-square test was used to evaluate associations. A p-value < 0.05 was considered statistically significant. Results: Overall, the sagittal position of the upper incisor showed a significant association with the sagittal skeletal relationship (p = 0.001). The upper incisors showed an adequate position (41.7%), protruded position (56.10%), and retruded position (42.40%), for Class I, II, and III skeletal relationships, respectively, as highest percentages in each Class. Statistical significance was found for females only (p = 0.005). Conclusion: Skeletal Class I mainly showed an adequate position of the upper central incisor, whereas for Class II a protruded position was most frequently found, and Class III presented a retruded position. Clinical significance: Andrews’ analysis based on the position of the forehead in Peruvian individuals is a valuable tool for orthodontic diagnosis.
AB - Aim: The aim of this study was to determine the sagittal position of the upper incisor considering Andrews’ analysis based on the position of the forehead in Peruvian individuals with different skeletal relationships. Materials and methods: This retrospective, cross-sectional study included 212 lateral head radiographs of Peruvian individuals (males: 85, mean age 21.38 ± 6.88, and females: 127, mean age 21.18 ± 6.95), with different skeletal relationships (Class I group = 96, Class II group = 57, Class III group = 59). The values of the ANB, SNA, SNB angles as well as the forehead anterior limit line (FALL) and goal anterior limit line (GALL) points were identified in the radiographs, and then a vertical line was drawn in each point to determine if the upper incisor was positioned forward (protruded), backward (retruded) or within (adequate) these lines. Two trained and calibrated investigators performed all the measurements. The Chi-square test was used to evaluate associations. A p-value < 0.05 was considered statistically significant. Results: Overall, the sagittal position of the upper incisor showed a significant association with the sagittal skeletal relationship (p = 0.001). The upper incisors showed an adequate position (41.7%), protruded position (56.10%), and retruded position (42.40%), for Class I, II, and III skeletal relationships, respectively, as highest percentages in each Class. Statistical significance was found for females only (p = 0.005). Conclusion: Skeletal Class I mainly showed an adequate position of the upper central incisor, whereas for Class II a protruded position was most frequently found, and Class III presented a retruded position. Clinical significance: Andrews’ analysis based on the position of the forehead in Peruvian individuals is a valuable tool for orthodontic diagnosis.
KW - Forehead
KW - Skeletal relationship
KW - Upper central incisor
UR - http://www.scopus.com/inward/record.url?scp=85182806745&partnerID=8YFLogxK
U2 - 10.5005/jp-journals-10024-3590
DO - 10.5005/jp-journals-10024-3590
M3 - Artículo
C2 - 38238267
AN - SCOPUS:85182806745
SN - 1526-3711
VL - 24
SP - 821
EP - 825
JO - Journal of Contemporary Dental Practice
JF - Journal of Contemporary Dental Practice
IS - 11
ER -