Increasing kVp will produce images with:

Increasing the kilovolt peak (kVp) in radiographic imaging results in images with lower contrast. This is due to the fact that higher kVp settings increase the penetration power of the x-ray beam, leading to a wider range of greyscales in the resulting image. Higher kVp allows for more tissues of varying densities to be visualized, resulting in a more uniform exposure across different structures. As a consequence, the differences between lighter and darker areas become less pronounced, yielding lower contrast.

In dental radiography, achieving lower contrast is often advantageous for visualizing structures that do not vary drastically in density, as it allows for more tissues to be assessed simultaneously. However, it might reduce the clarity of differences between specific areas, which can sometimes make identifying particular dental issues more challenging.

The other options relate to different aspects of imaging but do not specifically address the immediate effect of increasing kVp. Increasing kVp does not inherently lead to higher definition, higher brightness, or greater distortion in images, though these factors can be influenced by various other parameters in radiographic imaging.