Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays
Among structural alterations that can be a risk factor for temporomandibular joint disorder (TMD) is condylar asymmetry. In order to measure the condylar asymmetry index in panoramic x-rays quantitatively, two methods have been proposed: those of Habets and Kjellberg. The aim of this study was to de...
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| Lenguaje: | English |
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Sociedad Chilena de Anatomía
2011
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oai:scielo:S0717-950220110003000052012-06-11Reliability of Two Techniques for Measuring Condylar Asymmetry with X-RaysFuentes,REngelke,WBustos,LOporto,GBorie,ESandoval,PGaray,IBizama,MBorquez,P Temporomandibular joint Mandibular condyle Temporomandibular joint disorders Facial asymmetry Among structural alterations that can be a risk factor for temporomandibular joint disorder (TMD) is condylar asymmetry. In order to measure the condylar asymmetry index in panoramic x-rays quantitatively, two methods have been proposed: those of Habets and Kjellberg. The aim of this study was to determine whether the x-ray method of measuring condylar asymmetries in orthopantomographies presents a minor tendency to error due to slight displacements of the head in the horizontal plane. 30 patients between 18 and 25 years of age were assessed. Each of them underwent three panoramic x-rays in three different positions: orthoradial, and at 5 and 10 horizontal angles. Then the Habets and Kjellberg measurements were taken. Habets' technique did not show any statistically significant differences in the x-rays at 5° and 10° horizontal angles compared to the 0 angle. However, Kjellberg's technique showed statistically significant differences only at the 10° angle compared to the 0 angle. The 10° changes produced linear and ratio variations, but the indices did not vary. It was concluded that both methods provide acceptable clinical information within the limitations of these techniques to obtain data on condylar symmetries or asymmetries of the mandibular body or ramus.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.29 n.3 20112011-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300005en10.4067/S0717-95022011000300005 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Temporomandibular joint Mandibular condyle Temporomandibular joint disorders Facial asymmetry |
| spellingShingle |
Temporomandibular joint Mandibular condyle Temporomandibular joint disorders Facial asymmetry Fuentes,R Engelke,W Bustos,L Oporto,G Borie,E Sandoval,P Garay,I Bizama,M Borquez,P Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| description |
Among structural alterations that can be a risk factor for temporomandibular joint disorder (TMD) is condylar asymmetry. In order to measure the condylar asymmetry index in panoramic x-rays quantitatively, two methods have been proposed: those of Habets and Kjellberg. The aim of this study was to determine whether the x-ray method of measuring condylar asymmetries in orthopantomographies presents a minor tendency to error due to slight displacements of the head in the horizontal plane. 30 patients between 18 and 25 years of age were assessed. Each of them underwent three panoramic x-rays in three different positions: orthoradial, and at 5 and 10 horizontal angles. Then the Habets and Kjellberg measurements were taken. Habets' technique did not show any statistically significant differences in the x-rays at 5° and 10° horizontal angles compared to the 0 angle. However, Kjellberg's technique showed statistically significant differences only at the 10° angle compared to the 0 angle. The 10° changes produced linear and ratio variations, but the indices did not vary. It was concluded that both methods provide acceptable clinical information within the limitations of these techniques to obtain data on condylar symmetries or asymmetries of the mandibular body or ramus. |
| author |
Fuentes,R Engelke,W Bustos,L Oporto,G Borie,E Sandoval,P Garay,I Bizama,M Borquez,P |
| author_facet |
Fuentes,R Engelke,W Bustos,L Oporto,G Borie,E Sandoval,P Garay,I Bizama,M Borquez,P |
| author_sort |
Fuentes,R |
| title |
Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| title_short |
Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| title_full |
Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| title_fullStr |
Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| title_full_unstemmed |
Reliability of Two Techniques for Measuring Condylar Asymmetry with X-Rays |
| title_sort |
reliability of two techniques for measuring condylar asymmetry with x-rays |
| publisher |
Sociedad Chilena de Anatomía |
| publishDate |
2011 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300005 |
| work_keys_str_mv |
AT fuentesr reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT engelkew reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT bustosl reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT oportog reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT boriee reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT sandovalp reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT garayi reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT bizamam reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays AT borquezp reliabilityoftwotechniquesformeasuringcondylarasymmetrywithxrays |
| _version_ |
1718444737955889152 |