Abstract: Digital tomosynthesis systems, methods, and computer readable media for intraoral dental tomosynthesis imaging are disclosed. In some aspects, an intraoral tomosynthesis imaging system includes an x-ray source array for positioning outside a mouth of a patient, wherein the x-ray source array contains multiple x-ray focal spots that are spatially distributed on an anode, an area digital x-ray detector for positioning inside the mouth of the patient, a geometry calibration mechanism for connecting the x-ray detector to the x-ray source array, an x-ray collimator for confining x-ray beams to a region of interest, a controller for regulating x-ray radiation and synchronization of the x-ray radiation with the x-ray detector, such that multiple 2D projection images of the ROI are acquired without mechanical motion of the x-ray source array, the x-ray detector, or the mouth of the patient, and a computer program and workstation for 3D tomosynthesis image reconstruction and display.

Abstract: Intraoral tomosynthesis systems, methods, and computer readable media for dental imaging can include an x-ray source containing multiple focal spots spatially distributed on one or multiple anodes in an evacuated chamber, an x-ray detector for positioning inside a mouth of a patient, a device for determining imaging geometry of the intraoral tomosynthesis system; and control electronics configured to regulate the x-ray source, by sequentially activating each of the multiple focal spots, such that multiple two dimensional (2D) projection images of the mouth of the patient are acquired from multiple viewing angles. In some aspects, the device for determining the imaging geometry can comprise a plate connectedly attached to the x-ray detector, at least one light source connectedly attached to the x-ray source, and a camera configured to capture at least one light spot produced by a projection of at least one light beam onto the plate.

Abstract: Digital tomosynthesis systems, methods, and computer readable media for intraoral dental tomosynthesis imaging are disclosed. In some aspects, an intraoral tomosynthesis imaging system includes an x-ray source array for positioning outside a mouth of a patient, wherein the x-ray source array contains multiple x-ray focal spots that are spatially distributed on an anode, an area digital x-ray detector for positioning inside the mouth of the patient, a geometry calibration mechanism for connecting the x-ray detector to the x-ray source array, an x-ray collimator for confining x-ray beams to a region of interest, a controller for regulating x-ray radiation and synchronization of the x-ray radiation with the x-ray detector, such that multiple 2D projection images of the ROI are acquired without mechanical motion of the x-ray source array, the x-ray detector, or the mouth of the patient, and a computer program and workstation for 3D tomosynthesis image reconstruction and display.

Abstract: Intraoral tomosynthesis systems, methods, and computer readable media for dental imaging can include an x-ray source containing multiple focal spots spatially distributed on one or multiple anodes in an evacuated chamber, an x-ray detector for positioning inside a mouth of a patient, a device for determining imaging geometry of the intraoral tomosynthesis system; and control electronics configured to regulate the x-ray source, by sequentially activating each of the multiple focal spots, such that multiple two dimensional (2D) projection images of the mouth of the patient are acquired from multiple viewing angles. In some aspects, the device for determining the imaging geometry can comprise a plate connectedly attached to the x-ray detector, at least one light source connectedly attached to the x-ray source, and a camera configured to capture at least one light spot produced by a projection of at least one light beam onto the plate.