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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN:
Vol. 14, No. 2, 2015, pp. 141-148
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Bioline Code: os15024
Full paper language: English
Document type: Research Article
Document available free of charge
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Brazilian Journal of Oral Sciences, Vol. 14, No. 2, 2015, pp. 141-148
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2D and 3D imaging of the relationship between maxillary sinus and posterior teeth
Roque-Torres, Gina Delia; Ramirez-Sotelo, Laura Ricardina; de Almeida, Solange Maria; Ambrosano, Gláucia Maria Bovi & Bóscolo, Frab Norberto
Abstract
Aim: To compare the qualitative and quantitative information yielded by imaging modalities on the
evaluation of the relationship between the maxillary sinus and the apices of posterior teeth.
Methods: Three oral radiologists examined 109 panoramic radiographs and cone-beam
computed tomography (CBCT) images obtained from a digital archive. A total of 1,875 apices
were classified according to their topographic relationship in both imaging modalities. Agreements
between the two imaging techniques were examined statistically. The evaluation was repeated
in 25% of the sample to statistically evaluate the intraobserver agreement, with a 30-day interval.
Results: The values found in the Kappa test for qualitative assessment and the intraclass
correlation coefficient (ICC) for quantitative assessment showed nearly perfect and excellent
correlation, respectively. Regarding the correlation between the two images, the Kappa test in
the quality assessment showed a slight correlation between the palatal roots of the right first
molars and second molars. Moreover, the quantitative evaluation by ICC showed poor agreement
for the palatal roots of the left first molar and second molar, as well as for the buccomesial of the
right second molars and for the buccodistal of the left second molars. Conclusions: There is
low correlation between panoramic radiography and CBCT when roots are in contact or above
the maxillary sinus floor. A high level of agreement was observed when roots are below the
maxillary sinus floor.
Keywords
maxillary sinus; tooth apex; cone-beam computed tomography; radiography; panoramic
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