Abstract
Preoperative bone mineral density evaluation is a critical step in obtaining dental implant success. This paper summarizes the four most commonly used methods for evaluating the mineral density of jaw bone, discusses the shortcomings of these methods, and proposes a quantitative X-ray computed tomography (QCT) method for oral cone beam CT (CBCT) based on K2HPO4 liquid phantoms, in addition to describing the specific measurements. Moreover, this study evaluates K2HPO4 liquid phantoms’ uniformity, linearity, and stability in comparison with solid phantoms. The results show that CBCT bone density measurements based on K2HPO4 liquid phantoms are equivalent to those of conventional CT based on solid phantoms. In view of the low production cost and convenient and flexible configuration, the method based on liquid phantoms is worthy of clinical application.
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