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Is the assessment of the mandibular molar danger zone affected by field of view and voxel size in cone beam computed tomography examinations?
Ferrari, Daniella Ribeiro; Reis, Tânia Maria Soares; Junqueira, Rafael Binato; Kamburoglu, Kivanç; Küçük, Özlem; Verner, Francielle Silvestre.
Afiliación
  • Ferrari DR; Applied Health Sciences Post-Graduate Program, Federal University of Juiz de Fora, Minas Gerais, Brazil.
  • Reis TMS; Applied Health Sciences Post-Graduate Program, Federal University of Juiz de Fora, Minas Gerais, Brazil.
  • Junqueira RB; Applied Health Science Post-Graduate Program and Department of Dentistry, Federal University of Juiz de Fora, Minas Gerais, Brazil.
  • Kamburoglu K; Dentomaxillofacial Radiology Department, Faculty of Dentistry, Ankara University, Ankara, Turkey.
  • Küçük Ö; Department of Nuclear Medicine, Faculty of Medicine, Ankara University, Ankara, Turkey.
  • Verner FS; Applied Health Science Post-Graduate Program and Department of Dentistry, Federal University of Juiz de Fora, Minas Gerais, Brazil. Electronic address: francielle.verner@ufjf.br.
Oral Surg Oral Med Oral Pathol Oral Radiol ; 137(6): 662-670, 2024 06.
Article en En | MEDLINE | ID: mdl-38490929
ABSTRACT

OBJECTIVE:

To verify if assessment of the danger zone (DZ) in the mesial root of mandibular molars is affected by field of view (FOV) and voxel sizes in cone beam computed tomography (CBCT) scans. STUDY

DESIGN:

Forty mandibular molars were scanned by micro-computed tomography, creating the reference standard. The teeth were then submitted for CBCT scans with FOVs of 10 × 5.5 cm and 5 × 5.5 cm and voxel sizes of 0.4, 0.2, 0.15, and 0.075 mm3. The smallest dentin thickness in the DZ from the mesiobuccal and mesiolingual canals was measured at 2, 4, and 6 mm apical to the root furcation. Descriptive statistics, paired t-tests, and intraclass correlation coefficients were used for statistical analysis with significance established at P < .05.

RESULTS:

All CBCT measurements overestimated the DZ dentin thickness (P < .001) compared to the reference standard. The greatest overestimation occurred in the 5 × 5.5 cm FOV with 0.4 mm3 voxels (P = .007). Dentin thickness measured with the 5 × 5.5 cm FOV and 0.075 mm3 voxels was significantly smaller and produced the best ICC value with the reference standard (0.936).

CONCLUSIONS:

CBCT overestimates the dentin thickness of the DZ regardless of FOV and voxel sizes. The 5 × 5.5 cm FOV showed the best performance with the 0.075 mm3 voxel size, but it performed poorly with 0.4 mm3 voxels.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tomografía Computarizada de Haz Cónico / Microtomografía por Rayos X / Mandíbula / Diente Molar Límite: Humans Idioma: En Revista: Oral Surg Oral Med Oral Pathol Oral Radiol Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tomografía Computarizada de Haz Cónico / Microtomografía por Rayos X / Mandíbula / Diente Molar Límite: Humans Idioma: En Revista: Oral Surg Oral Med Oral Pathol Oral Radiol Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos