Cargando…
Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study
PURPOSE: The aim this study was to compare the accuracy of orthodontists and dentomaxillofacial radiologists in identifying 17 commonly used cephalometric landmarks, and to determine the extent of variability associated with each of those landmarks. MATERIALS AND METHODS: Twenty digital lateral ceph...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Academy of Oral and Maxillofacial Radiology
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4697005/ https://www.ncbi.nlm.nih.gov/pubmed/26730368 http://dx.doi.org/10.5624/isd.2015.45.4.213 |
_version_ | 1782407867507146752 |
---|---|
author | Durão, Ana Paula Reis Morosolli, Aline Pittayapat, Pisha Bolstad, Napat Ferreira, Afonso P. Jacobs, Reinhilde |
author_facet | Durão, Ana Paula Reis Morosolli, Aline Pittayapat, Pisha Bolstad, Napat Ferreira, Afonso P. Jacobs, Reinhilde |
author_sort | Durão, Ana Paula Reis |
collection | PubMed |
description | PURPOSE: The aim this study was to compare the accuracy of orthodontists and dentomaxillofacial radiologists in identifying 17 commonly used cephalometric landmarks, and to determine the extent of variability associated with each of those landmarks. MATERIALS AND METHODS: Twenty digital lateral cephalometric radiographs were evaluated by two groups of dental specialists, and 17 cephalometric landmarks were identified. The x and y coordinates of each landmark were recorded. The mean value for each landmark was considered the best estimate and used as the standard. Variation in measurements of the distance between landmarks and measurements of the angles associated with certain landmarks was also assessed by a subset of two observers, and intraobserver and interobserver agreement were evaluated. RESULTS: Intraclass correlation coefficients were excellent for intraobserver agreement, but only good for interobserver agreement. The least reliable landmark for orthodontists was the gnathion (Gn) point (standard deviation [SD], 5.92 mm), while the orbitale (Or) was the least reliable landmark (SD, 4.41 mm) for dentomaxillofacial radiologists. Furthermore, the condylion (Co)-Gn plane was the least consistent (SD, 4.43 mm). CONCLUSION: We established that some landmarks were not as reproducible as others, both horizontally and vertically. The most consistently identified landmark in both groups was the lower incisor border, while the least reliable points were Co, Gn, Or, and the anterior nasal spine. Overall, a lower level of reproducibility in the identification of cephalometric landmarks was observed among orthodontists. |
format | Online Article Text |
id | pubmed-4697005 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Korean Academy of Oral and Maxillofacial Radiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-46970052016-01-04 Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study Durão, Ana Paula Reis Morosolli, Aline Pittayapat, Pisha Bolstad, Napat Ferreira, Afonso P. Jacobs, Reinhilde Imaging Sci Dent Original Article PURPOSE: The aim this study was to compare the accuracy of orthodontists and dentomaxillofacial radiologists in identifying 17 commonly used cephalometric landmarks, and to determine the extent of variability associated with each of those landmarks. MATERIALS AND METHODS: Twenty digital lateral cephalometric radiographs were evaluated by two groups of dental specialists, and 17 cephalometric landmarks were identified. The x and y coordinates of each landmark were recorded. The mean value for each landmark was considered the best estimate and used as the standard. Variation in measurements of the distance between landmarks and measurements of the angles associated with certain landmarks was also assessed by a subset of two observers, and intraobserver and interobserver agreement were evaluated. RESULTS: Intraclass correlation coefficients were excellent for intraobserver agreement, but only good for interobserver agreement. The least reliable landmark for orthodontists was the gnathion (Gn) point (standard deviation [SD], 5.92 mm), while the orbitale (Or) was the least reliable landmark (SD, 4.41 mm) for dentomaxillofacial radiologists. Furthermore, the condylion (Co)-Gn plane was the least consistent (SD, 4.43 mm). CONCLUSION: We established that some landmarks were not as reproducible as others, both horizontally and vertically. The most consistently identified landmark in both groups was the lower incisor border, while the least reliable points were Co, Gn, Or, and the anterior nasal spine. Overall, a lower level of reproducibility in the identification of cephalometric landmarks was observed among orthodontists. Korean Academy of Oral and Maxillofacial Radiology 2015-12 2015-12-17 /pmc/articles/PMC4697005/ /pubmed/26730368 http://dx.doi.org/10.5624/isd.2015.45.4.213 Text en Copyright © 2015 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Durão, Ana Paula Reis Morosolli, Aline Pittayapat, Pisha Bolstad, Napat Ferreira, Afonso P. Jacobs, Reinhilde Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title | Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title_full | Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title_fullStr | Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title_full_unstemmed | Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title_short | Cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
title_sort | cephalometric landmark variability among orthodontists and dentomaxillofacial radiologists: a comparative study |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4697005/ https://www.ncbi.nlm.nih.gov/pubmed/26730368 http://dx.doi.org/10.5624/isd.2015.45.4.213 |
work_keys_str_mv | AT duraoanapaulareis cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy AT morosollialine cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy AT pittayapatpisha cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy AT bolstadnapat cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy AT ferreiraafonsop cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy AT jacobsreinhilde cephalometriclandmarkvariabilityamongorthodontistsanddentomaxillofacialradiologistsacomparativestudy |