Correlation Between CBCT and Torque-Based Measurements of Bone Density: A Study on Polyurethane Foam Blocks and Bovine Ribs.

• DOI: 10.11607/jomi.10914
• Publication Date: 2025-02-07
• Authors: Paolo Arosio; G Arosio; Federico Arosio; U. Garagiola; Danilo Alessio Di...

To assess whether (and to what extent) average torque readings evaluating the bone density of polyurethane foam blocks and bovine ribs are correlated with that gray values (GVs) measured via CBCT scans, both at site reading adjacent sites where is expected engage implant threads. Average were collected on scans then analyzed measure GVs purposedly designed regions interest (ROIs). The ROIs shaped as concentric hollow cylinders centered measurements. relation between was investigated through correlation analyses. from strong (r = 0.94, r2 0.89, P < .001), which independent ROI size. On ribs, weak but significant 0.23, .029); however, it become stronger when denser (average ≥ 7 Ncm) tested 0.41, .008). This result distance had been read. Loss torque-GV interchangeability observed likely caused by intrinsic characteristics, such an abundance marrow nonmineralized tissue, possibly having a confounding effect GV measurements, especially lower densities. Within limitations study, found estimate physical just well scans. In low-density bone, assessment mineral also be more informative than GVs. Results this study suggest micromotor may presently regarded complementary tool quality in clinical setting.