Evaluation of linear measurements of implant sites based on head orientation during acquisition: An ex vivo study using cone-beam computed tomography
Imaging Science in Dentistry
;
: 73-80, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-148259
ABSTRACT
PURPOSE:
This study evaluated the effect of various head orientations during cone-beam computed tomography (CBCT) image acquisition on linear measurements of potential implant sites. MATERIALS ANDMETHODS:
Six dry human skulls with a total of 28 implant sites were evaluated for seven different head orientations. The scans were acquired using a Hitachi CB-MercuRay CBCT machine. The scanned volumes were reconstructed. Horizontal and vertical measurements were made and were compared to measurements made after simulating the head position to corrected head angulations. Data was analyzed using a two-way ANOVA test.RESULTS:
Statistical analysis revealed a significant interaction between the mean errors in vertical measurements with a marked difference observed at the extension head position (P<0.05). Statistical analysis failed to yield any significant interaction between the mean errors in horizontal measurements at various head positions.CONCLUSION:
Head orientation could significantly affect the vertical measurements in CBCT scans. The main head position influencing the measurements is extension.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Crânio
/
Implantes Dentários
/
Tomografia Computadorizada de Feixe Cônico
/
Posicionamento do Paciente
/
Precisão da Medição Dimensional
/
Cabeça
Limite:
Humanos
Idioma:
Inglês
Revista:
Imaging Science in Dentistry
Ano de publicação:
2015
Tipo de documento:
Artigo
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