Computed tomography (CT) apparatus for dentistry, whose apparatus comprises an arm part (11) rotatably arranged around at least one axis (21, 22, 23) of rotation with the help of an actuator (31, 32, 33), at whose arm part (11) and at a distance from each other there is a radiation source (14) and an image detector (15), a control system for controlling said actuator (31, 32, 33), radiation source (14) and imaging detector (15), wherein said control system comprises a first control routine arranged to control said radiation source (14) to produce pulsed radiation and in which said arm part (11) of the apparatus is arranged to be located or transferable with respect to the volume from which images are desired to be located, and the control system comprises a control routine such that, when the part (11) of arm is rotated during an obte scan Notation of CT images, at least in a substantial angular range or in the entire angular range of the imaging scan, only a part of the volume arranged to obtain images thereof is within the radiation beam, characterized in that the apparatus comprises means for measuring the anode current of the radiation source and why said first control routine comprises adjusting the duration of the radiation pulses so that the anode current of the radiation source is measured and the pulse is always terminated at the point when integral of the current reaches a preset value.Aparato de tomografía computarizada (CT) para odontología, cuyo aparato comprende una parte (11) de brazo dispuesta de manera giratoria alrededor de al menos un eje (21, 22, 23) de rotación con la ayuda de un actuador (31, 32, 33), a cuya parte (11) de brazo y a una distancia entre sí se han dispuesto una fuente (14) de radiación y un detector (15) de obtención de imágenes, un sistema de control para controlar dichos actuador (31, 32, 33), fuente (14) de radiación y detector (15) de obtención de imágenes, en el que dicho sistema de control comprende una primera rutina de con
