The effect of horizontal X-ray beam angulation on the detection of furcation defects of mandibular first molars in intraoral radiography.
Dentomaxillofac Radiol
; 39(2): 85-90, 2010 Feb.
Article
en En
| MEDLINE
| ID: mdl-20100919
ABSTRACT
OBJECTIVES:
The aim was to investigate the effect of changes in horizontal X-ray beam angulation in intraoral radiography on the detection accuracy of furcation defects in the mandibular first molar, and to examine the anatomical relationship between the roots and furcation area as a possible cause of changes in detectability.METHODS:
Simulated furcation defects with various depths were created in five mandibular first molars. Intraoral radiographs were taken at various horizontal angulations of the projection beams. The diagnostic accuracies were determined based on receiver operating characteristic analysis. The geometric relationship that might influence the accuracy was investigated through use of a compact cone beam CT in 59 first molar areas.RESULTS:
Although the horizontal angulations showing the highest accuracies were shifted mesially, no differences were found between the angles of -10 degrees and 20 degrees . The relationship between the roots and the furcation area was relevant to the range of angulations showing high detectabilities.CONCLUSIONS:
The angulations traditionally used for detecting proximal caries are also suitable for detecting furcation defects.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Radiografía Dental
/
Defectos de Furcación
/
Tomografía Computarizada de Haz Cónico
/
Diente Molar
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Adult
/
Humans
Idioma:
En
Revista:
Dentomaxillofac Radiol
Año:
2010
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM