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The International Journal of Prosthodontics



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Int J Prosthodont 32 (2019), No. 2     28. Mar. 2019
Int J Prosthodont 32 (2019), No. 2  (28.03.2019)

Page 198-200, doi:10.11607/ijp.6127, PubMed:30856646

Accuracy of Three Cone Beam Computed Tomography Systems in the Detection of Implant-Abutment Misfit
Carneiro, Vinícius C. / Siqueira, Caíque A. / Valentim, Flavia B. / Oliveira, Amanda L. E. / Oliveira, Matheus L. / Azeredo, Rogério A. / de-Azevedo-Vaz, Sergio L.
Purpose: To assess the accuracy of three cone beam computed tomography (CBCT) systems in misfit detection at the implant-abutment joint.
Materials and Methods: A total of 32 implants were placed in dry human mandibles. Porcelain-fused-to-metal crowns, both with and without a 200-μm-thick gap at the implant-abutment joint, were placed and then scanned using three CBCT systems: Picasso Trio (PT), OP300 (OP), and Scanora 3D (SC). Images were assessed, and area under the receiver operating characteristic curve (Az) values were compared (a = .05).
Results: Az values obtained with PT (0.86) were significantly higher than with OP (0.63) and SC (0.64) (P < .05).
Conclusion: Images acquired with PT allowed for more accurate misfit detection at the implant-abutment joint due to higher contrast resolution.