Digitale Volumentomografie: kieferorthopädische Aspekte

Zusammenfassung

Digitale Volumentomografen (DVT), die speziell für den zahnärztlichen Gebrauch entwickelt wurden, haben Einzug in die Kieferorthopädie gehalten. Sie bieten echte 3D-Bildgebung mit kleinerer Strahlenbelastung und geringeren Kosten als die konventionelle Computertomografie. In diesem Übersichtsartikel werden einige wichtige Aspekte dieser Technologie und ihr Gebrauch in der Kieferorthopädie diskutiert. So werden neben der Bildqualität, die Strahlenbelastung sowie die kieferorthopädischen Indikationen erörtert. Auch auf 3D-Volumenrekonstruktionen, Zufallsbefunde und Kollateralpathologien sowie die Segmentierung von Kiefermodellen ab DVT wird eingegangen. 

Abstract

Cone beam computed tomography (CBCT) devices that have been developed for the maxillofacial region have spread in orthodontics in the last years. They provide real 3D-imaging at a reduced radiation dose and lower cost compared to conventional CT. This paper highlights some important aspects of CBCT and its use in orthodontics. Image quality, x-ray doses and orthodontic indications are going to be outlined. 3D-volume rendering, incidental findings and segmentation of orthodontic models from CBCT are also going to be discussed. 

Schlüsselwörter

digitale Volumentomografie - DVT - Indikationen - Bildqualität - Volumenrekonstruktion - Strahlenbelastung - 3D-Kephalometrie

Key words

cone beam computed tomography - CBCT - indications - picture quality - volume reconstruction - 3D-cephalometry

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