摘要：In this study a 3D microtomography display of tooth surfaces after in vitro dental wear
tests has been obtained. Natural teeth have been compared with prosthetic teeth, manufactured by
three different polyceramic composite materials. The prosthetic dental element samples, similar to
molars, have been placed in opposition to human teeth extracted by paradontology diseases. After
microtomography analysis, samples have been subjected to in vitro fatigue test cycles by servo-hydraulic
mechanical testing machine. After the fatigue test, each sample has been subjected again
to microtomography analysis to obtain volumetric value changes and dental wear surface images.
Wear surface images were obtained by 3D reconstruction software and volumetric value changes
were measured by CT analyser software. The aim of this work has been to show the potential of microtomography
technique to display very clear and reliable wear surface images. Microtomography
analysis methods to evaluate volumetric value changes have been used to quantify dental tissue and
composite material wear.
关键词：3D microtomography evaluation, composite materials, human teeth, in vitro fatigue test, dental wear
surfaces.
